来自另一个应用程序的Android调用方法

Question

我有 2 个安卓应用。两者都安装在手机上。假设这两个包的名称是 com.android.test1 和 com.android.test2。我如何从 test1.Main 类中调用方法 Main2method()？

test1 的类:

package com.android.test1;
import android.app.Activity;
import android.os.Bundle;

public class Main extends Activity {  

    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
    }
}

test2 类:

package com.android.test2;
import android.app.Activity;
import android.os.Bundle;

public class Main2 extends Activity {  

    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
    }

    public static void Main2method() {
        //do something..
    }
}

Answer 1

也许你可以广播一个 Intent 来调用它。

Intent it = new Intent("com.android.test2.Main2method");
context.sendBroadcast(it)

在 com.android.test2.Main2 中创建一个 BroadcastReceiver 来接收广播:

public class ActionReceiver extends BroadcastReceiver {
    @Override
    public void onReceive(Context context, Intent intent) {
        if ("com.android.test2.Main2method".equalsIgnoreCase(intent.getAction())) {
            Main2method();
        } 
    }
}

在 Main1 类的 onCreate 方法中注册接收器:

public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    ...

    receiver = new ActionReceiver();
    IntentFilter filter = new IntentFilter();
    filter.addAction("com.android.test2.Main2method");
    registerReceiver(receiver, filter);
    ...
}