如何使用通知待处理意图操作删除图像？

Posted 2023-02-24

【中文标题】如何使用通知待处理意图操作删除图像？

【英文标题】：How to delete an image using Notification pending intent action?

【发布时间】：2019-08-19 13:46:51

【问题描述】：

我用动作构建了通知，其中一个动作是Delete。

我有一个截图和他的路径...当用户点击通知图像中的Delete 按钮时，应该删除。

问题是：如何配置PendingIntent，用户可以点击Delete按钮并通过路径删除图片...？

编辑

我想过WorkManager的一些Foreground service实现，但我不确定它是不是正确的方法......

【参考方案1】：

前台服务在这种情况下可以很好地工作，示例如下：

public class DeleteImageService extends IntentService 

    public DeleteImageService(String name) 
        super(name);
    

    @Override
    public void onCreate() 
        super.onCreate();
        startForeground(1, notification);
    

    @Override
    protected void onHandleIntent(@Nullable Intent intent) 
        if (intent != null) 
            if (ACTION_DELETE.equals(intent.getAction()) && intent.hasExtra(EXTRA_PATH)) 
                string path = intent.getString(EXTRA_PATH);
                // Delete image in path
            
        
    

    static PendingIntent pendingIntent(Context context) 
        final Intent intent = new Intent(context, DeleteImageService.class);
        intent.setAction(ACTION_DELETE);
        intent.putExtra(EXTRA_PATH, path);
        return PendingIntent.getForegroundService(context, 1, retrieve, 0);
    

【参考方案2】：

感谢@JakeB，我稍微改进了他的答案，这就是我得到的

public class DeleteImageService extends IntentService

    private final static String TAG = DeleteImageService.class.getSimpleName();
    private static final int DELETE_IMAGE_SERVICE_REQUEST_CODE = 1;

    public static final String EXTRA_SCREENSHOT_PATH = "extra_screenshot_path";
    public static final String DELETE_IMAGE_SERVICE = "delete_image_service";

    public DeleteImageService()
    
        super(DELETE_IMAGE_SERVICE);
    

    @Override
    public void onCreate()
    
        super.onCreate();
        startService(new Intent(this, DeleteImageService.class));
    

    @Override
    protected void onHandleIntent(@Nullable Intent intent)
    
        if (intent != null && Intent.ACTION_DELETE.equals(intent.getAction()) && intent.hasExtra(EXTRA_SCREENSHOT_PATH))
        
            String path = intent.getStringExtra(EXTRA_SCREENSHOT_PATH);
            FileManager.deleteFileBy(path);
            Logger.log(Log.ERROR, TAG, path);
            PushNotificationManager.getInstance(this).getScreenshotNotificator(this).closeNotification();
        
    

    @NonNull
    public static PendingIntent pendingIntent(@NonNull final Context context,//
                                              @NonNull final String iPath)
    
        final Intent intent = new Intent(context, DeleteImageService.class);
        intent.setAction(Intent.ACTION_DELETE);
        intent.putExtra(EXTRA_SCREENSHOT_PATH, iPath);
        PendingIntent pIntent;
        pIntent = PendingIntent.getService(context, DELETE_IMAGE_SERVICE_REQUEST_CODE, intent, PendingIntent.FLAG_UPDATE_CURRENT);

        return pIntent;
    

此代码支持android版本