从app1广播到app2

问题描述 投票:0回答:1

我正在尝试从bc_from广播到bc_to。 如果我在Activity bc_to中使用它可以正常工作:

registerReceiver(receiver, filter);

如果我在Manifest中定义接收器,它就不起作用。 我从文档中了解到,自26年以来这可能是不可能的。 所以我正在寻找任何能够达到Activity bc_to的解决方案,即使它没有运行。

谢谢

// package com.yotam17.ori.bc_from;
public class MainActivity extends AppCompatActivity {

    private static final String BC_ACTION = "com.yotam17.ori.bc.Broadcast";

    private void send() {
        Intent intent = new Intent(BC_ACTION);
        intent.addFlags(Intent.FLAG_INCLUDE_STOPPED_PACKAGES);
        sendBroadcast(intent);
    }

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        send();
    }
}

以及来自容器Manifest和两个类的bc的代码:

<application
    android:allowBackup="true"
    android:icon="@mipmap/ic_launcher"
    android:label="@string/app_name"
    android:roundIcon="@mipmap/ic_launcher_round"
    android:supportsRtl="true"
    android:theme="@style/AppTheme">

    <receiver android:name="com.yotam17.ori.bc_to.MyReceiver" >
        <intent-filter>
            <action android:name="com.yotam17.ori.bc.Broadcast"/>
        </intent-filter>
    </receiver>

    <activity
        android:name=".MainActivity"
        android:label="@string/app_name"
        android:theme="@style/AppTheme.NoActionBar">
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />
            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>
</application>

// package com.yotam17.ori.bc_to;
public class MainActivity extends AppCompatActivity {

    private static final String BC_ACTION = "com.yotam17.ori.bc.Broadcast";

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        // Register MyReceiver
        IntentFilter filter = new IntentFilter(BC_ACTION);
        MyReceiver receiver = new MyReceiver();
        registerReceiver(receiver, filter); //<<<<<< Does not work w/o this
    }
}

public class MyReceiver extends BroadcastReceiver {

    @Override
    public void onReceive(Context context, Intent intent) {

        Toast.makeText(context, "Got it!!!" , Toast.LENGTH_SHORT).show();
    }
}
android android-pendingintent broadcast
1个回答
0
投票

谢谢! setComponent()解决了它。 我之前从未使用过setComponent(),但发现了一个详细的例子here

为了使它成为一个工作示例 - 这里是修改后的send()代码:

private void send() {
    Intent intent = new Intent(BC_ACTION);
    intent.addFlags(Intent.FLAG_INCLUDE_STOPPED_PACKAGES);
    intent.setComponent(new ComponentName("com.yotam17.ori.bc_to","com.yotam17.ori.bc_to.MyReceiver"));
    sendBroadcast(intent);
}
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