我正在尝试从我的 Fragment 类中调用 DialogFragment。我有一个 ImageView,并且想在我设置的 ImageView 的 onClickListener 中调用我的 DialogFragment 类。
我在尝试调用 DialogFragment 时设置的代码在 onClick 中出现错误。
我在“show”上收到一个错误,说明“DialogFragment 类型中的方法 show(FragmentManager, String) 不适用于参数 (FragmentManager, String)”,并且在“new Instance”上收到一个错误,说明“The method newInstance()对于 MyDialogFragment 类型未定义”
这是我的代码:
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState)
{
final View v = inflater.inflate(R.layout.image_detail_fragment,
container, false);
mImageView = (RecyclingImageView) v.findViewById(R.id.imageView);
mImageView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View arg0) {
//Here
MyDialogFragment dialog = MyDialogFragment.newInstance();
dialog.show(getFragmentManager(), "fragmentDialog");
}
});
return v;
}
对话片段类:
import android.app.AlertDialog;
import android.app.Dialog;
import android.app.DialogFragment;
import android.content.Context;
import android.content.DialogInterface;
import android.os.Bundle;
class MyDialogFragment extends DialogFragment {
Context mContext;
public MyDialogFragment() {
mContext = getActivity();
}
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(mContext);
alertDialogBuilder.setTitle("Set Wallpaper?");
alertDialogBuilder.setMessage("Are you sure?");
//null should be your on click listener
alertDialogBuilder.setPositiveButton("OK", null);
alertDialogBuilder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
}
});
return alertDialogBuilder.create();
}
public static MyDialogFragment newInstance() {
MyDialogFragment = new MyDialogFragment;
return f;
}
}