无法解析方法显示（android.support.v4.app FragmentManager,java.lang.string）
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cannot resolve method show(android.support.v4.app FragmentManager,java.lang.string)
提问by james
import android.app.DialogFragment;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.ListView;
import android.widget.Toast;
/**
* Created by jamie on 9/12/2015.
*/
public class PlayersFragment extends DialogFragment {
ListView lv;
String[] players = {"arteta", "costa", "reid", "degea", "rooney", "terry"};
int[] images = {R.drawable.arteta, R.drawable.costa, R.drawable.reid, R.drawable.degea,
R.drawable.rooney, R.drawable.terry};
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.dialog, container, false);
//initialize listview
lv = (ListView) rootView.findViewById(R.id.listView1);
//set dialog title
getDialog().setTitle("Soccer SuperStars");
//create adapter obj and set list view to it
Adapter adapter = new Adapter(getActivity(), players, images);
lv.setAdapter(adapter);
lv.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> a, View v, int pos, long id) {
Toast.makeText(getActivity(), players[pos], Toast.LENGTH_SHORT).show();
}
});
return rootView;
}
}Trying to create a ListViewfragment in android studio and getting
error
试图ListView在android studio中创建一个片段并收到错误
cannot resolve method show(android.support.v4.app FragmentManager,java.lang.string)
无法解析方法显示（android.support.v4.app FragmentManager,java.lang.string）
the error is on the p.show(fm,"Players Fragment)underlined in red, tried to resolve this but getting nowhere, i would really appreciate a solution to this! thank you
错误p.show(fm,"Players Fragment)在红色下划线处，试图解决此问题但无济于事，我真的很感激这个解决方案！谢谢
import android.os.Bundle;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentManager;
import android.view.View;
import android.widget.Button;
public class MainActivity extends FragmentActivity {
Button showBtn;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
final FragmentManager fm =getSupportFragmentManager();
final PlayersFragment p=new PlayersFragment();
showBtn=(Button)findViewById(R.id.button1);
showBtn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
p.show(fm,"Players Fragment"); //error is here
}
});
}
}
回答by Semyon Danilov
I suppose you are using android.app.DialogFragmentand not android.support.v4.app.DialogFragment. Just extend PlayersFragmentfrom support library's android.support.v4.app.DialogFragment. Or, if you are not targeting old devices, you can change getSupportFragmentManager()to getFragmentManager()
我想你正在使用android.app.DialogFragment而不是android.support.v4.app.DialogFragment. 只需PlayersFragment从支持库的android.support.v4.app.DialogFragment. 或者，如果您不针对旧设备，则可以更改getSupportFragmentManager()为getFragmentManager()
回答by user5775240
You have to import android.support.v4.app.DialogFragmenton the class PlayersFragmentand then change getSupportFragmentManager()to getFragmentManager().
您必须android.support.v4.app.DialogFragment在类上导入PlayersFragment，然后更改getSupportFragmentManager()为getFragmentManager().
