[英]DatePickerDialog closes when rotating from landscape/portrait
I'm having problem width DatePickerDialog, because when it's opened and I turn the screen (landscape/portrait) the dialog stops. 我遇到了宽度DatePickerDialog的问题,因为当它打开并旋转屏幕(横向/纵向)时,对话框将停止。
Now I'm trying to save the state of a dialog in a Bundle, but I don't really know how :/ 现在,我试图将对话框的状态保存在Bundle中,但我真的不知道如何://
The code: 编码:
public class ActivityNeki extends Activity {
private int datY, datM, datD;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity);
if(savedInstanceState == null){ setTheData(); writeTheData(); }
}
@Override
protected void onSaveInstanceState(Bundle outState) {
outState.putInt("izY", datY);
outState.putInt("izM", datM);
outState.putInt("izD", datD);
super.onSaveInstanceState(outState);
}
@Override
protected void onRestoreInstanceState(Bundle savedInstanceState) {
super.onRestoreInstanceState(savedInstanceState);
datY = savedInstanceState.getInt("izY");
datM = savedInstanceState.getInt("izM");
datD = savedInstanceState.getInt("izD");
writeTheData();
}
public void onClickOpenDPD(View view) { // the method that is caled from XML onClick
DatePickerDialog dpd = new DatePickerDialog(this, new DatePickerDialog.OnDateSetListener() {
@Override public void onDateSet(DatePicker view, int y, int m, int d) {
datY = y; datM = m; datD = d;
writeTheData();
}
}, datY, datM, datD);
dpd.show();
}
public void setTheData(){
Calendar c = Calendar.getInstance();
datY = c.get(Calendar.YEAR);
datM = c.get(Calendar.MONTH);
datD = c.get(Calendar.DAY_OF_MONTH);
}
public void writeTheData(){
// writes the data in a txtView
}
}
So if anyon have any idea how to do this, I will apriceate it !
因此,如果有人对如何执行此操作有任何想法,我将对其予以标价!
Thanks in advance :) 提前致谢 :)
The working solution: (Big tnx to Taig)
工作解决方案:(从 Big tnx到Taig)
public class ActivityNeki extends FragmentActivity {
/**
* the rest of the code
* is the same...
* I only edited this method:
*/
public void onClickOpenDPD(View view) { // the method that is caled from XML onClick
class MyDialogFragment extends DialogFragment {
@Override public void onDestroyView() {
if (getDialog() != null && getRetainInstance()) getDialog().setDismissMessage(null);
super.onDestroyView();
}
@Override public void onCreate(Bundle state) { super.onCreate(state);
setRetainInstance(true);
}
@Override public Dialog onCreateDialog(Bundle state) {
DatePickerDialog dpd = new DatePickerDialog( getActivity(), new DatePickerDialog.OnDateSetListener() {
@Override public void onDateSet(DatePicker view, int y, int m, int d) {
datY = y; datM = m; datD = d;
writeTheData();
} }, datY, datM, datD);
return dpd;
}
}
newDF = new MyDialogFragment();
newDF.show( getSupportFragmentManager(), null );
}
}
I'd suggest using DialogFragments if that is an option for you. 我建议您使用DialogFragments。
class MyDialogFragment extends DialogFragment {
@Override
public void onCreate( Bundle state ) {
super.onCreate( state );
setRetainInstance( true );
}
@Override
public Dialog onCreateDialog( Bundle state ) {
return new DatePickerDialog( ... );
}
}
In your activity you can then launch the dialog by calling new MyDialogFragment().show( getSupportFragmentManager(), null )
. 然后,在您的活动中,可以通过调用
new MyDialogFragment().show( getSupportFragmentManager(), null )
启动对话框。 The Dialog will reopen and you don't have to persist the current selection on orientation change by yourself! 对话框将重新打开,您不必自己继续更改方向的当前选择!
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.