java - Activity 不调用 onActivityResult

Question

该程序不调用 onActivityResult，我在很多帖子中都是这样，但我无法让它工作。

我正在使用 Android 3.0 模拟器。

这是GameScreen.java的代码

@Override 
public void onActivityResult(int requestCode, int resultCode, Intent data) {      
  super.onActivityResult(requestCode, resultCode, data); 
  switch(requestCode) { 
    case 0: { 
      if (resultCode == Activity.RESULT_OK) {    
          String newText = data.getStringExtra("isRunning");          
          // TODO Update your TextView.
          isRunning = true;
      } 
      break; 
    } 
  } 
}
 public void pause(){
    clickListener = new OnClickListener() {         
        @Override
        public void onClick(View v) {
            // TODO Auto-generated method stub              
            pause.setImageResource(R.drawable.pauseafter);
            isRunning = false;
            Intent intent = new Intent(Gamescreen.this, Shop.class);                  
            startActivityForResult(intent, 0);
        }
    };
}

这是代码 Shop.java

public void returnButton(){
    resume.setOnClickListener(new OnClickListener() {           
        @Override
        public void onClick(View v) {
            // TODO Auto-generated method stub
            Intent intent = new Intent();
            setResult(Activity.RESULT_OK,intent);
            finish();
        }
    });
}   

Answer 1

为了测试，我创建了简单的应用程序。没什么特别的，只有默认布局和两个 Activity 。 onActivityResult 中的 Toast 正确显示。

这是完整的工作代码:

文件OnReturnActivity.java:

package some.package;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.widget.Toast;

public class OnReturnActivity extends Activity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        Intent i = new Intent(this, GimmeReturn.class);
        startActivityForResult(i, 0);
    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        // TODO Auto-generated method stub
        Toast.makeText(this, "Got Result " + String.valueOf(resultCode),     Toast.LENGTH_SHORT).show();
        super.onActivityResult(requestCode, resultCode, data);
    }
}

文件GimmeReturn.java:

package some.package;

import android.app.Activity;
import android.os.Bundle;

public class GimmeReturn extends Activity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        Toast.makeText(this, "Returning!", Toast.LENGTH_SHORT).show();
        setResult(RESULT_OK);
        finish();
    }
}

这两个 Activity 都需要添加到 Android list 。 Activity OnReturnActivity 具有操作 MAIN 和类别 LAUNCHER(并作为应用程序的主要 Activity 启动)。刚刚添加了 Activity GimmeResult，没有任何 IntentFilter。