android - 来自孩子的 onBackPressed 总是调用父母 onBackPressed

Question

我有一个包含 5 个选项卡的选项卡视图。在其中一个选项卡中有一个按钮，单击该按钮将打开一个新活动。直到现在一切正常。但是当我从该活动中单击返回按钮时，它会打开其父活动的 onBackPressed 方法.我想打开它自己的 onBackPressed 方法。提前谢谢..

此父活动正在从 tabview 打开

家长活动

public class ProgressActivity extends ActivityGroup 
{
private ArrayList<View> history;
public void onCreate(Bundle savedInstanceState) 
{
    super.onCreate(savedInstanceState);
    setContentView(R.layout.progress_tabview);
    this.history = new ArrayList<View>();
}
public void showProgress(View v) 
{
    Intent intMyProg = new Intent(this,ShowProgress.class);
    //startActivity(intMyProg);


    View MyView = getLocalActivityManager()
            .startActivity("MyIntent", intMyProg
            .addFlags(Intent.EXTRA_DOCK_STATE_DESK))
            .getDecorView();


    replaceView(MyView);
}

public void replaceView(View v) 
{
    history.add(v);
    setContentView(v);
}

//@Override  
public void onBackPressed() 
{  
    Toast.makeText(getApplicationContext(), "Back button pressed from parent activity", Toast.LENGTH_SHORT).show();
}
}

儿童活动

public class ShowProgress extends ActivityGroup
{
public void onCreate(Bundle savedInstanceState) 
{
    super.onCreate(savedInstanceState);
    setContentView(R.layout.progress);

    AlertDialog alertDialog = new AlertDialog.Builder(ShowProgress.this.getParent()).create();
    alertDialog.setTitle("Hello ...");
    alertDialog.setMessage("Hello world this is Anirban !");
    alertDialog.setIcon(R.drawable.tick);
    alertDialog.setButton("OK", new DialogInterface.OnClickListener() 
    {
        public void onClick(DialogInterface dialog, int which) 
        {
            Toast.makeText(getApplicationContext(), "You clicked on OK", Toast.LENGTH_SHORT).show();
        }
    });
    alertDialog.show();
}

//@Override  
    public void onBackPressed() 
    {  
        Toast.makeText(getApplicationContext(), "Back button pressed from child activity", Toast.LENGTH_SHORT).show();
    }

 }

帮助将不胜感激