代码布局为何选择日期时间选择器 处理不会移动到由日期时间选择器发现布局时，不会出现

Question

这是类如果现有ALDATA时间贝克：

public class Popactivity extends DialogFragment implements View.OnClickListener { 
    View view; 

    @Override 
    public View onCreateView(LayoutInflater inflater, ViewGroup container, 
     Bundle savedInstanceState) { 
     view = inflater.inflate(R.layout.pop, container, false); 

     return view; 
    } 


    @Override 
    public void onClick(View v) { 

    } 


    public void show(FragmentTransaction manager, Object o) {} 
} 

这是类MainActivity

protected void onCreate(Bundle savedInstanceState) { 

super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_main); 



android.support.v4.app.FragmentTransaction manager =getSupportFragmentManager().beginTransaction(); 
     Popactivity ppp=new Popactivity(); 
     ppp.show(manager,null); 

Answer 1

该方法不需要存在。

public void show(FragmentTransaction manager, Object o) {} 

至少，你不应该需要重写/重载现有show(FragmentTransaction transaction, String tag)方法。

如果删除它，应该没有错误。

这段代码，例如，编译好。

public class MainActivity extends android.support.v7.app.AppCompatActivity { 

    public static class PopUpFragment extends android.support.v4.app.DialogFragment { 

     @Override 
     public View onCreateView(LayoutInflater inflater, ViewGroup container, 
           Bundle savedInstanceState) { 
      View rootView = inflater.inflate(R.layout.pop, container, false); 
      return rootView; 
     } 
    } 

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

     PopUpFragment pop = new PopUpFragment(); 
     pop.show(getSupportFragmentManager(), null); 

    } 
}