Java DialogFragment将onClick结果返回到MainActivity
这个问题已经被问了十几次了,但我仍然无法继续我的问题。我尝试了4个或更多列出的答案,但没有出现错误,结果根本就没有返回。这是我尝试过的最新代码。我真的希望这个解决方案能起作用,因为它对我来说是最具可读性的 我欢迎任何建议,谢谢 主要活动 MyDialogFragmentJava DialogFragment将onClick结果返回到MainActivity,java,android,android-dialogfragment,Java,Android,Android Dialogfragment,这个问题已经被问了十几次了,但我仍然无法继续我的问题。我尝试了4个或更多列出的答案,但没有出现错误,结果根本就没有返回。这是我尝试过的最新代码。我真的希望这个解决方案能起作用,因为它对我来说是最具可读性的 我欢迎任何建议,谢谢 主要活动 MyDialogFragment 我找到了它,在我的MainActivity中添加了一个ondialogkPressed方法,并将其放入对话框((MainActivity)(MyAlertDialogFragment.this.getActivity()).on
我找到了它,在我的
MainActivity
中添加了一个ondialogkPressed
方法,并将其放入对话框((MainActivity)(MyAlertDialogFragment.this.getActivity()).ondialogkPressed()的onClick中代码>
所以现在看起来像这样
MyDialogFragment
主要活动
我找到了它,在我的MainActivity
中添加了一个ondialogkPressed
方法,并将其放入对话框((MainActivity)(MyAlertDialogFragment.this.getActivity()).ondialogkPressed()的onClick中代码>
所以现在看起来像这样
MyDialogFragment
主要活动
getTargetFragment()
方法在哪里?我认为它只是内置的,我没有在任何地方重写它。看看这个答案中的代码:我现在就开始了。不确定它是否正确,但它可以工作,我将其作为答案发布。getTargetFragment()
方法在哪里?我认为它只是内置的,我没有在任何地方重写它。看看这个答案中的代码:我现在就开始了。不确定它是否合适,但它有效,我将其作为答案发布。
...
private void showAlertDialog() {
FragmentManager fm = getSupportFragmentManager();
MyAlertDialogFragment alertDialog =
MyAlertDialogFragment.newInstance("Some title");
alertDialog.setTargetFragment(alertDialog, 1);
alertDialog.show(fm, "fragment_alert");
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intentdata)
{
// Stuff to do, dependent on requestCode and resultCode
if(requestCode == 1) // 1 is an arbitrary number, can be any int
{
// This is the return result of your DialogFragment
if(resultCode == 1) // 1 is an arbitrary number, can be any int
{
Toast.makeText(MainActivity.this, "result received",
Toast.LENGTH_SHORT).show();
Log.d("onActivityResult", "result received" + resultCode);
}
}
}
...
import android.support.v4.app.DialogFragment;
import android.support.v7.app.AlertDialog;
...
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
String title = getArguments().getString("title");
AlertDialog.Builder alertDialogBuilder = new
AlertDialog.Builder(getActivity());
alertDialogBuilder.setTitle(title);
alertDialogBuilder.setMessage("Are you sure?");
alertDialogBuilder.setPositiveButton("OK", new
DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
// on success
}
});
alertDialogBuilder.setNegativeButton("Cancel", new
DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
getTargetFragment().onActivityResult(getTargetRequestCode(),
1, getActivity().getIntent());
dialog.dismiss();
}
});
return alertDialogBuilder.create();
}
...
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
String title = getArguments().getString("title");
AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(getActivity());
alertDialogBuilder.setTitle(title);
alertDialogBuilder.setMessage("Are you sure?");
alertDialogBuilder.setPositiveButton("OK", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
// on success
((MainActivity)(MyAlertDialogFragment.this.getActivity())).onDialogOKPressed();
}
});
alertDialogBuilder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
getTargetFragment().onActivityResult(getTargetRequestCode(), 1, getActivity().getIntent());
dialog.dismiss();
}
});
return alertDialogBuilder.create();
}
...
public void onDialogOKPressed () {
// Stuff to do, dependent on requestCode and resultCode
Toast.makeText(MainActivity.this, "OK pressed", Toast.LENGTH_SHORT).show();
}