如何使用通知未决意图操作删除图像？

Question

我用操作构建了通知，其中一个操作是 Delete。

我有一个屏幕截图和他的路径...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 用户可以单击 Delete 按钮并按路径删除图像...？

编辑

我考虑了一些 Foreground service 实施 WorkManager 实施，但我不确定这是正确的方法...

Answer 1

前台服务在这种情况下运行良好，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);
    }
}

Answer 2

感谢@JakeB，我对他的回答有了一点改进，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<26，也不请求前台服务权限。

如何使用通知未决意图操作删除图像？

How to delete an image using Notification pending intent action?

notifications

android

push-notification

android-notifications