Question

我有一个广播接收器（ BackgroundReceiver ），它监听包的删除，然后将包名称广播到一个活动（ AnalyzeActivity ）

的 BackgroundReceiver.java 的

public static final String REMOVED_INTENT = "com.analyze.project.RemovedReceiver";

    public void onReceive(Context context, Intent intent) {
        String actionStr = intent.getAction();
        if (Intent.ACTION_PACKAGE_REMOVED.equals(actionStr)) {
            Uri uri = intent.getData();
            String pkg = uri != null ? uri.getSchemeSpecificPart() : null;
            Log.i("Logging Service", "Package Removed: " + pkg);
            //Toast.makeText(context, "Package Removed:" + pkg, Toast.LENGTH_SHORT).show();

            Intent c = new Intent();
            c.setAction(REMOVED_INTENT);
            c.putExtra("Package", pkg);
            context.sendBroadcast(c);
        }
    }

我在 AnalyzeActivity 中动态注册接收器，并从 BackgroundReceiver

侦听自定义广播意图

的 AnalyzeActivity.java 的

    @Override
        protected void onResume() {
            super.onResume();
            // Register Sync Recievers
            IntentFilter intentToReceiveFilter = new IntentFilter();
            intentToReceiveFilter.addAction(BackgroundReceiver.REMOVED_INTENT);
            this.registerReceiver(mIntentReceiver, intentToReceiveFilter, null, mHandler);
            mReceiversRegistered = true;

        }

    final BroadcastReceiver mIntentReceiver = new BroadcastReceiver() {
        @Override
        public void onReceive(Context context, Intent intent) {
            String Package = intent.getStringExtra("Package");
        if (intent.getAction().equals(BackgroundReceiver.REMOVED_INTENT)) {
                Toast.makeText(context, "(A) Package Removed: " + Package, Toast.LENGTH_SHORT).show();
                Log.i("Package Removed", "(A) Package Removed: " + Package);
            }

        }
    };

但我的活动似乎根本无法接收广播意图。

Answer 1

使用此命令在onResume中注册broacast

IntentFilter filter = new IntentFilter(BackgroundReceiver.REMOVED_INTENT);

mIntentReceiver intentToReceiveFilter = new mIntentReceiver();

registerReceiver(intentToReceiveFilter,filter);

并使用它从包删除广播接收器发送广播

Intent intent = new Intent(BackgroundReceiver.REMOVED_INTENT);
intent.putExtra("Package", pkg);
context.sendBroadcast(intent);

如果它解决了您的问题，请告诉我

活动未从广播接收器接收自定义广播意图

1 个答案: