815 lines
19 KiB
Vue
815 lines
19 KiB
Vue
<template>
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<view class="camera-container">
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<!-- 相机预览区域 -->
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<view class="camera-preview">
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<!-- #ifdef H5 -->
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<view class="camera-placeholder">
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<text class="placeholder-text">H5端需要特殊配置才能使用相机</text>
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</view>
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<!-- #endif -->
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<!-- #ifdef APP-PLUS || MP -->
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<camera
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:device-position="devicePosition"
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:flash="flashMode"
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@error="cameraError"
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class="camera"
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ref="camera"
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></camera>
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<!-- #endif -->
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<!-- 相机控制区域 -->
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<view class="camera-controls">
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<!-- 顶部控制栏 -->
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<view class="top-controls">
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<view class="control-btn" @click="toggleFlash">
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<image
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:src="flashMode === 'off' ? '/static/ic_flash_off.png' : '/static/ic_flash_on.png'"
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class="control-icon"
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></image>
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</view>
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<view class="control-btn" @click="switchCamera">
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<image src="/static/ic_camera_switch.png" class="control-icon"></image>
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</view>
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</view>
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<!-- 底部操作栏 -->
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<view class="bottom-controls">
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<!-- 相册入口 -->
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<view class="album-entry" @click="openAlbum">
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<image v-if="latestMedia" :src="latestMedia" class="album-thumb"></image>
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<view v-else class="album-placeholder"></view>
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</view>
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<!-- 拍摄按钮 -->
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<view class="capture-area">
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<view
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class="capture-btn"
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:class="{ recording: isRecording }"
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@touchstart="startCapture"
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@touchend="stopCapture"
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>
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<view class="capture-inner"></view>
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</view>
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</view>
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<!-- 模式切换 -->
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<view class="mode-toggle">
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<view
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class="mode-btn"
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:class="{ active: captureMode === 'photo' }"
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@click="switchMode('photo')"
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>
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拍照
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</view>
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<view
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class="mode-btn"
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:class="{ active: captureMode === 'video' }"
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@click="switchMode('video')"
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>
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录像
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</view>
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</view>
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</view>
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</view>
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<!-- 录制时间显示 -->
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<view v-if="isRecording" class="recording-timer">
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{{ formatTime(recordTime) }}
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</view>
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</view>
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<!-- 结果预览区域 -->
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<view v-if="capturedMedia" class="preview-container">
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<image v-if="captureMode === 'photo'" :src="capturedMedia" class="preview-image"></image>
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<video v-else :src="capturedMedia" class="preview-video" autoplay controls></video>
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<view class="preview-actions">
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<view class="action-btn cancel-btn" @click="cancelPreview">取消</view>
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<view class="action-btn confirm-btn" @click="confirmMedia">使用</view>
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</view>
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</view>
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<!-- 权限提示 -->
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<view v-if="showPermissionTip" class="permission-tip">
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<view class="tip-content">
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<text class="tip-text">需要相机权限才能使用拍照功能</text>
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<view class="tip-buttons">
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<button class="tip-btn" @click="cancelPermission">取消</button>
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<button class="tip-btn confirm" @click="requestPermission">去设置</button>
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</view>
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</view>
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</view>
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</view>
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</template>
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<script>
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export default {
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data() {
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return {
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devicePosition: 'back', // 'front' or 'back'
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flashMode: 'off', // 'off', 'on', 'auto'
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captureMode: 'photo', // 'photo' or 'video'
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isRecording: false,
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recordTime: 0,
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recordTimer: null,
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capturedMedia: '',
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latestMedia: '',
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hasCameraPermission: false,
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showPermissionTip: false,
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cameraContext: null
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}
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},
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onLoad() {
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// 页面加载时检查权限
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this.checkPermission()
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},
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onShow() {
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// 页面显示时重置状态
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this.resetState()
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},
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methods: {
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// 检查权限
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checkPermission() {
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// #ifdef APP-PLUS
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this.checkAppPermission()
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// #endif
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// #ifdef MP-WEIXIN
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this.checkMPPermission()
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// #endif
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// #ifdef H5
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// H5默认可以使用
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this.hasCameraPermission = true
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// #endif
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},
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// 检查App权限
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checkAppPermission() {
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// #ifdef APP-PLUS
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// 先检查是否已有权限
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// #ifdef APP-PLUS && ANDROID
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// Android平台检查权限
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var Context = plus.android.importClass("android.content.Context");
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var main = plus.android.runtimeMainActivity();
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var PackageManager = plus.android.importClass("android.content.pm.PackageManager");
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var permission = "android.permission.CAMERA";
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var result = main.checkSelfPermission(permission);
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if (result === PackageManager.PERMISSION_GRANTED) {
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this.hasCameraPermission = true;
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} else {
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// 请求权限
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plus.android.requestPermissions(
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[permission],
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(resultObj) => {
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let denied = false;
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for (let i = 0; i < resultObj.denied.length; i++) {
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denied = true;
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break;
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}
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this.hasCameraPermission = !denied;
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if (denied) {
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this.showPermissionTip = true;
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}
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},
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(error) => {
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console.error('权限请求失败:', error);
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this.hasCameraPermission = false;
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this.showPermissionTip = true;
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}
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);
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}
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// #endif
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// #ifdef APP-PLUS && IOS
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// iOS平台默认认为有权限，实际使用时会弹出授权框
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this.hasCameraPermission = true;
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// #endif
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// #endif
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},
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// 检查小程序权限
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checkMPPermission() {
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// #ifdef MP-WEIXIN
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uni.getSetting({
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success: (res) => {
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if (res.authSetting['scope.camera']) {
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this.hasCameraPermission = true;
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} else {
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this.requestMPPermission();
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}
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},
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fail: () => {
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this.requestMPPermission();
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}
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});
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// #endif
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},
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// 请求小程序权限
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requestMPPermission() {
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// #ifdef MP-WEIXIN
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uni.authorize({
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scope: 'scope.camera',
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success: () => {
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this.hasCameraPermission = true;
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},
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fail: () => {
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this.showPermissionTip = true;
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}
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});
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// #endif
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},
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// 请求权限
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requestPermission() {
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this.showPermissionTip = false;
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// #ifdef APP-PLUS
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if (plus.os.name == 'Android') {
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var Intent = plus.android.importClass('android.content.Intent');
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var Settings = plus.android.importClass('android.provider.Settings');
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var main = plus.android.runtimeMainActivity();
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var intent = new Intent(Settings.ACTION_APPLICATION_DETAILS_SETTINGS);
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var uri = plus.android.invoke('android.net.Uri', 'fromParts', 'package', main.getPackageName(), null);
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plus.android.invoke(intent, 'setData', uri);
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main.startActivity(intent);
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} else if (plus.os.name == 'iOS') {
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plus.runtime.openURL('app-settings:');
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}
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// #endif
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// #ifdef MP-WEIXIN
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uni.openSetting({
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success: (setting) => {
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if (setting.authSetting['scope.camera']) {
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this.hasCameraPermission = true;
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}
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}
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});
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// #endif
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},
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// 取消权限请求
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cancelPermission() {
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this.showPermissionTip = false;
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},
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// 重置状态
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resetState() {
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this.capturedMedia = '';
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this.isRecording = false;
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if (this.recordTimer) {
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clearInterval(this.recordTimer);
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this.recordTimer = null;
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}
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this.recordTime = 0;
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},
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// 切换闪光灯
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toggleFlash() {
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if (!this.hasCameraPermission) {
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this.showNoPermissionTip();
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return;
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}
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this.flashMode = this.flashMode === 'off' ? 'on' : 'off';
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},
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// 切换前后摄像头
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switchCamera() {
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if (!this.hasCameraPermission) {
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this.showNoPermissionTip();
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return;
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}
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this.devicePosition = this.devicePosition === 'back' ? 'front' : 'back';
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},
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// 切换拍摄模式
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switchMode(mode) {
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if (!this.hasCameraPermission) {
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this.showNoPermissionTip();
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return;
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}
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this.captureMode = mode;
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},
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// 开始拍摄
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startCapture() {
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if (!this.hasCameraPermission) {
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this.showNoPermissionTip();
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return;
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}
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if (this.captureMode === 'photo') {
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this.takePhoto();
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} else {
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this.startRecord();
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}
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},
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// 停止拍摄
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stopCapture() {
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if (!this.hasCameraPermission) {
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this.showNoPermissionTip();
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return;
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}
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if (this.captureMode === 'video' && this.isRecording) {
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this.stopRecord();
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}
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},
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// 拍照
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takePhoto() {
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if (!this.hasCameraPermission) {
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this.showNoPermissionTip();
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return;
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}
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// #ifdef APP-PLUS
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const ctx = uni.createCameraContext();
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ctx.takePhoto({
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quality: 'high',
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success: (res) => {
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this.capturedMedia = res.tempImagePath;
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this.latestMedia = res.tempImagePath;
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},
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fail: (err) => {
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console.error('拍照失败:', err);
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// 检查是否是权限问题
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if (err.errMsg && (err.errMsg.includes('permission') || err.errMsg.includes('权限'))) {
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this.hasCameraPermission = false;
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this.showPermissionTip = true;
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} else {
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uni.showToast({
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title: '拍照失败',
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icon: 'none'
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});
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}
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}
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});
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// #endif
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// #ifdef MP-WEIXIN
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const ctx = uni.createCameraContext();
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ctx.takePhoto({
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quality: 'high',
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success: (res) => {
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this.capturedMedia = res.tempImagePath;
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this.latestMedia = res.tempImagePath;
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},
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fail: (err) => {
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console.error('拍照失败:', err);
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// 检查是否是权限问题
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if (err.errMsg && (err.errMsg.includes('permission') || err.errMsg.includes('权限'))) {
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this.hasCameraPermission = false;
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this.showPermissionTip = true;
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} else {
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uni.showToast({
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title: '拍照失败',
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icon: 'none'
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});
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}
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}
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});
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// #endif
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},
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// 开始录像
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startRecord() {
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if (!this.hasCameraPermission) {
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this.showNoPermissionTip();
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return;
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}
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// #ifdef APP-PLUS
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const ctx = uni.createCameraContext();
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ctx.startRecord({
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success: () => {
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this.isRecording = true;
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this.recordTime = 0;
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this.recordTimer = setInterval(() => {
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this.recordTime++;
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}, 1000);
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},
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fail: (err) => {
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console.error('开始录像失败:', err);
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// 检查是否是权限问题
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if (err.errMsg && (err.errMsg.includes('permission') || err.errMsg.includes('权限'))) {
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this.hasCameraPermission = false;
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this.showPermissionTip = true;
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} else {
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uni.showToast({
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title: '开始录像失败',
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icon: 'none'
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});
|
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}
|
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}
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});
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// #endif
|
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// #ifdef MP-WEIXIN
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const ctx = uni.createCameraContext();
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ctx.startRecord({
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success: () => {
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this.isRecording = true;
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this.recordTime = 0;
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this.recordTimer = setInterval(() => {
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this.recordTime++;
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}, 1000);
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},
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fail: (err) => {
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console.error('开始录像失败:', err);
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// 检查是否是权限问题
|
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if (err.errMsg && (err.errMsg.includes('permission') || err.errMsg.includes('权限'))) {
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this.hasCameraPermission = false;
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this.showPermissionTip = true;
|
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} else {
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uni.showToast({
|
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title: '开始录像失败',
|
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icon: 'none'
|
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});
|
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}
|
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}
|
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});
|
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// #endif
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},
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|
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// 停止录像
|
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stopRecord() {
|
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if (!this.hasCameraPermission) {
|
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this.showNoPermissionTip();
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return;
|
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}
|
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|
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// #ifdef APP-PLUS
|
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const ctx = uni.createCameraContext();
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ctx.stopRecord({
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success: (res) => {
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clearInterval(this.recordTimer);
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this.recordTimer = null;
|
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this.isRecording = false;
|
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this.capturedMedia = res.tempVideoPath;
|
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this.latestMedia = res.tempVideoPath;
|
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},
|
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fail: (err) => {
|
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console.error('停止录像失败:', err);
|
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uni.showToast({
|
||
title: '停止录像失败',
|
||
icon: 'none'
|
||
});
|
||
}
|
||
});
|
||
// #endif
|
||
|
||
// #ifdef MP-WEIXIN
|
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const ctx = uni.createCameraContext();
|
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ctx.stopRecord({
|
||
success: (res) => {
|
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clearInterval(this.recordTimer);
|
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this.recordTimer = null;
|
||
this.isRecording = false;
|
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this.capturedMedia = res.tempVideoPath;
|
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this.latestMedia = res.tempVideoPath;
|
||
},
|
||
fail: (err) => {
|
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console.error('停止录像失败:', err);
|
||
uni.showToast({
|
||
title: '停止录像失败',
|
||
icon: 'none'
|
||
});
|
||
}
|
||
});
|
||
// #endif
|
||
},
|
||
|
||
// 显示无权限提示
|
||
showNoPermissionTip() {
|
||
uni.showToast({
|
||
title: '无相机权限，请先授权',
|
||
icon: 'none'
|
||
});
|
||
this.showPermissionTip = true;
|
||
},
|
||
|
||
// 格式化时间
|
||
formatTime(seconds) {
|
||
const mins = Math.floor(seconds / 60);
|
||
const secs = seconds % 60;
|
||
return `${mins.toString().padStart(2, '0')}:${secs.toString().padStart(2, '0')}`;
|
||
},
|
||
|
||
// 打开相册
|
||
openAlbum() {
|
||
uni.chooseImage({
|
||
count: 1,
|
||
success: (res) => {
|
||
this.capturedMedia = res.tempFilePaths[0];
|
||
this.captureMode = 'photo';
|
||
},
|
||
fail: (err) => {
|
||
console.error('选择图片失败:', err);
|
||
}
|
||
});
|
||
},
|
||
|
||
// 取消预览
|
||
cancelPreview() {
|
||
this.capturedMedia = '';
|
||
},
|
||
|
||
// 确认使用媒体
|
||
confirmMedia() {
|
||
// 将媒体文件传递回上一个页面
|
||
const pages = getCurrentPages();
|
||
if (pages.length > 1) {
|
||
const prevPage = pages[pages.length - 2];
|
||
if (prevPage && prevPage.$vm) {
|
||
if (this.captureMode === 'photo') {
|
||
if (prevPage.$vm.onPhotoTaken) {
|
||
prevPage.$vm.onPhotoTaken(this.capturedMedia);
|
||
}
|
||
} else {
|
||
if (prevPage.$vm.onVideoTaken) {
|
||
prevPage.$vm.onVideoTaken(this.capturedMedia);
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
// 返回上一页
|
||
uni.navigateBack();
|
||
},
|
||
|
||
// 相机错误处理
|
||
cameraError(e) {
|
||
console.error('相机错误:', e);
|
||
uni.showToast({
|
||
title: '相机初始化失败',
|
||
icon: 'none'
|
||
});
|
||
}
|
||
},
|
||
|
||
beforeDestroy() {
|
||
// 清理定时器
|
||
if (this.recordTimer) {
|
||
clearInterval(this.recordTimer);
|
||
this.recordTimer = null;
|
||
}
|
||
}
|
||
}
|
||
</script>
|
||
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<style scoped>
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.camera-container {
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width: 100vw;
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height: 100vh;
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position: relative;
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background: #000;
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}
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.camera-preview {
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width: 100%;
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height: 100%;
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position: relative;
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}
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.camera {
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width: 100%;
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height: 100%;
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}
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.camera-placeholder {
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width: 100%;
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height: 100%;
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display: flex;
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align-items: center;
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justify-content: center;
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color: #fff;
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font-size: 32rpx;
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text-align: center;
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}
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.placeholder-text {
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padding: 40rpx;
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}
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.camera-controls {
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position: absolute;
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top: 0;
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left: 0;
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width: 100%;
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height: 100%;
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pointer-events: none;
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}
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.camera-controls > view {
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pointer-events: auto;
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}
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.top-controls {
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display: flex;
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justify-content: space-between;
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padding: 40rpx;
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}
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.control-btn {
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width: 80rpx;
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height: 80rpx;
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border-radius: 50%;
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background: rgba(0, 0, 0, 0.3);
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display: flex;
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align-items: center;
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justify-content: center;
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}
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.control-icon {
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width: 40rpx;
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height: 40rpx;
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}
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.bottom-controls {
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position: absolute;
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bottom: 40rpx;
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left: 0;
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width: 100%;
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display: flex;
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align-items: center;
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justify-content: space-around;
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}
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.album-entry {
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width: 80rpx;
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height: 80rpx;
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border-radius: 16rpx;
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overflow: hidden;
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background: rgba(255, 255, 255, 0.2);
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}
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.album-thumb {
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width: 100%;
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height: 100%;
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object-fit: cover;
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}
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.album-placeholder {
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width: 100%;
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height: 100%;
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background: rgba(255, 255, 255, 0.1);
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}
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.capture-area {
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width: 120rpx;
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height: 120rpx;
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border-radius: 50%;
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border: 8rpx solid rgba(255, 255, 255, 0.3);
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display: flex;
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align-items: center;
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justify-content: center;
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}
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.capture-btn {
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width: 100rpx;
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height: 100rpx;
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border-radius: 50%;
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background: #fff;
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display: flex;
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align-items: center;
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justify-content: center;
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transition: all 0.2s;
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}
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.capture-btn.recording {
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background: #ff4d4f;
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border-color: #ff4d4f;
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transform: scale(1.1);
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}
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.capture-inner {
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width: 80rpx;
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height: 80rpx;
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border-radius: 50%;
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background: #fff;
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}
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.mode-toggle {
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display: flex;
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background: rgba(0, 0, 0, 0.3);
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border-radius: 50rpx;
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overflow: hidden;
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}
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.mode-btn {
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padding: 16rpx 32rpx;
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font-size: 28rpx;
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color: #fff;
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}
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.mode-btn.active {
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background: rgba(255, 255, 255, 0.3);
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}
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.recording-timer {
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position: absolute;
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top: 40rpx;
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left: 50%;
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transform: translateX(-50%);
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background: rgba(0, 0, 0, 0.5);
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color: #fff;
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padding: 10rpx 20rpx;
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border-radius: 30rpx;
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font-size: 28rpx;
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}
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.preview-container {
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position: absolute;
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top: 0;
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left: 0;
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width: 100%;
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height: 100%;
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background: #000;
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z-index: 100;
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}
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.preview-image,
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.preview-video {
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width: 100%;
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height: 80%;
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object-fit: contain;
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}
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.preview-actions {
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display: flex;
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justify-content: space-around;
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padding: 40rpx;
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}
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.action-btn {
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padding: 20rpx 60rpx;
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border-radius: 50rpx;
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font-size: 32rpx;
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color: #fff;
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}
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.cancel-btn {
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background: #999;
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}
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.confirm-btn {
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background: #007aff;
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}
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||
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.permission-tip {
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||
position: absolute;
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top: 0;
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left: 0;
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||
width: 100%;
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||
height: 100%;
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background: rgba(0, 0, 0, 0.5);
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display: flex;
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align-items: center;
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justify-content: center;
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z-index: 200;
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}
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||
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.tip-content {
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width: 80%;
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background: #fff;
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border-radius: 20rpx;
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padding: 40rpx;
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text-align: center;
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}
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.tip-text {
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||
font-size: 32rpx;
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color: #333;
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||
margin-bottom: 40rpx;
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||
display: block;
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||
}
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||
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||
.tip-buttons {
|
||
display: flex;
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||
justify-content: space-between;
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||
}
|
||
|
||
.tip-btn {
|
||
flex: 1;
|
||
padding: 20rpx;
|
||
border-radius: 10rpx;
|
||
font-size: 28rpx;
|
||
margin: 0 20rpx;
|
||
}
|
||
|
||
.tip-btn.confirm {
|
||
background: #007aff;
|
||
color: #fff;
|
||
}
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||
</style> |