我有一个 DialogFragment,显示要从中选择的项目列表(类似于 Messaging 中的附加对话框)。
我的问题是,当我选择了一个项目时,我无法让这个对话框消失。我试过在 OnItemClickListener
中调用 dismiss()
和 getDialog().dismiss()
,但没有成功。我试图通过 FragmentManager 删除对话框,我尝试了 fragmentManager.popBackStack()
,但都无济于事。我无法关闭此对话框。单击对话框外部或点击后退按钮时,它会正常消失,但我的代码中没有任何内容会使它消失。
有没有人见过这个?如何让对话框正确关闭?
对话代码:
public class ShareDialog extends DialogFragment {
public enum ShareType {
Camera, Gallery, Web, Whiteboard, Browse,
}
BaseAdapter mShareAdapter = new BaseAdapter() {
@Override
public View getView(int position, View contentView, ViewGroup parent) {
TextView view = null;
if (contentView == null) {
view = (TextView) getLayoutInflater(null).inflate(android.R.layout.simple_list_item_1, parent, false);
} else {
view = (TextView) contentView;
}
int draw = 0;
switch (ShareType.values()[position]) {
case Browse:
view.setText("Browse Content...");
draw = R.drawable.ic_share_browse;
break;
case Camera:
view.setText("Image from Camera...");
draw = R.drawable.ic_share_camera;
break;
case Gallery:
view.setText("Image from Gallery...");
draw = R.drawable.ic_share_gallery;
break;
case Web:
view.setText("New Browsing Session");
draw = R.drawable.ic_share_web;
break;
case Whiteboard:
view.setText("New Whiteboard");
draw = R.drawable.ic_share_whiteboard;
break;
}
view.setCompoundDrawablesWithIntrinsicBounds(draw, 0, 0, 0);
view.setCompoundDrawablePadding(8);
return view;
}
@Override
public long getItemId(int position) {
return ShareType.values()[position].ordinal();
}
@Override
public Object getItem(int position) {
return ShareType.values()[position];
}
@Override
public int getCount() {
return ShareType.values().length;
}
};
public Dialog onCreateDialog(android.os.Bundle savedInstanceState) {
AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
builder.setTitle("Share which?");
ListView list = new ListView(getActivity());
list.setAdapter(mShareAdapter);
list.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long itemId) {
dismiss(); // WHY DOESN'T THIS WORK???
if (listener != null)
listener.newShare((ShareType) mShareAdapter.getItem(position));
}
});
builder.setView(list);
return builder.create();
}
public interface ShareDialogListener {
void newShare(ShareType type);
}
private ShareDialogListener listener;
@Override
public void onAttach(Activity activity) {
super.onAttach(activity);
// Verify that the host activity implements the callback interface
try {
// Instantiate the AutoconnectListener so we can send events to the host
listener = (ShareDialogListener) activity;
} catch (ClassCastException e) {
// The activity doesn't implement the interface, throw exception
throw new ClassCastException(activity.toString() + " must implement ShareDialogListener");
}
}
}
最佳答案
为什么不使用 AlertDialog.Builder 上可用的方法来构建列表,而不是创建您自己的 ListView 并填充它?
我修改了您的示例代码以展示其工作原理,在此示例中,对话框 dismiss() 功能正常。
public Dialog onCreateDialog(android.os.Bundle savedInstanceState) {
AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
builder.setSingleChoiceItems(mShareAdapter, 0, new OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
if (listener != null) {
listener.newShare((ShareType) mShareAdapter.getItem(which));
}
}
});
builder.setTitle("Share which?");
return builder.create();
}
关于android - 无法让 DialogFragment 以编程方式关闭,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/14738572/