我正在尝试创建一个Fragment在显示后保留其状态的内容。
为此，我尝试使用getFragmentManager().saveFragmentInstanceState()inside onPause()& 然后调用setInitialSavedState()inside onCreateView()。
我面临的问题是我不知道如何准确使用它们以及何时调用它们。
此外，这两个函数都采用 type 的参数SavedState，我不确定如何使用。
代码：
public class AudioContainerFragmentClass extends Fragment implements
OnClickListener {
final String TAG = "AudioContainerFragmentClass";
private Button bSetName;
private TextView tvName;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = null;
try {
Log.e(TAG, "onCreateView()");
view = inflater.inflate(R.layout.audio_fragment_container, null);
bSetName = (Button) view.findViewById(R.id.bSetName);
tvName = (TextView) view.findViewById(R.id.tvName);
bSetName.setOnClickListener(this);
if(savedInstanceState != null){
setInitialSavedState(/* WHICH SavedState OBJECT TO PASS */);
}
Log.e(TAG, "onCreate()");
} catch (Exception e) {
Log.e(TAG, "onCreateView(): " + e.toString());
}
return view;
}
/*
@Override
public void onSaveInstanceState(Bundle outState) {
Log.e(TAG, "onSaveInstanceState()");
super.onSaveInstanceState(outState);
}
*/
@Override
public void onClick(View v) {
tvName.setText("sometext");
}
@Override
public void onPause() {
super.onPause();
getFragmentManager().saveFragmentInstanceState( /* WHAT TO ADD HERE */);
}
}