android 将数据传递到对话框

Question

你好，我是 android 编程的初学者，我在将数据从 MainActivity 发送到我的 dialogBox.I 时遇到问题，因为我试了很长时间都没有成功。

在 MainActivity.class 中，我使用 onOptionsItemSelected 方法从 DialogBoxSettings.class 创建对话框。

 @Override
public boolean onOptionsItemSelected(MenuItem item) {

    String title = (String) item.getTitle(); // I set my title
    Bundle savedInstanceState = new Bundle();
    savedInstanceState.putString("dialogBoxSettingsTitle", title);

    DialogBoxSettings newFragment = new DialogBoxSettings();
    newFragment.setArguments(savedInstanceState);

    Toast.makeText(getApplicationContext(), title, Toast.LENGTH_LONG).show();

    newFragment.show(getFragmentManager(), "dialogBoxSettings");

    return super.onOptionsItemSelected(item);
}

在方法 onCreateDialog 的 DialogBoxSettings 中，我创建了我的对话框

public class DialogBoxSettings extends DialogFragment {

private static final String TAG = DialogBoxSettings.class.getSimpleName();

EditText mEditTextDialogBoxService;

@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {

    AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
    LayoutInflater inflater = getActivity().getLayoutInflater();
    View view = inflater.inflate(R.layout.dialog_box_settings, null);
    builder.setView(view);
    //builder.setMessage(title);

    mEditTextDialogBoxService = (EditText) view.findViewById(R.id.editTextDialogBoxService);

    builder.setPositiveButton(getResources().getText(R.string.dialogBoxSettingsPositiveButton), new DialogInterface.OnClickListener() {
        public void onClick(DialogInterface dialog, int id) {
            Log.d(TAG, "POSITIVE button");
        }
    });
    builder.setNegativeButton(getResources().getText(R.string.dialogBoxSettingsNegativeButton), new DialogInterface.OnClickListener() {
        public void onClick(DialogInterface dialog, int id) {
            Log.d(TAG, "NEGATIVE button");
        }
    });
    // Create the AlertDialog object and return it
    return builder.create();
}

}

除了我不知道如何将标题传递给 onCreateDialog 方法之外，所有这些都工作正常。我现在需要为此使用 Bundle，但我真的尝试了一切但现在都失败了，所以如果有人帮助我，我将非常感激。到目前为止，我已经尝试过这样做，但我没有成功

谢谢!!!!

Answer 1

在您的对话片段中：

public class DialogBoxSettings extends DialogFragment {

private static final String TAG = DialogBoxSettings.class.getSimpleName();

EditText mEditTextDialogBoxService;

@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {

***final String title = getArguments().getString("dialogBoxSettingsTitle");***


    AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
    LayoutInflater inflater = getActivity().getLayoutInflater();
    View view = inflater.inflate(R.layout.dialog_box_settings, null);
    builder.setView(view);
***builder.setTitle(title);***
    //builder.setMessage(title);

    mEditTextDialogBoxService = (EditText) view.findViewById(R.id.editTextDialogBoxService);

    builder.setPositiveButton(getResources().getText(R.string.dialogBoxSettingsPositiveButton), new DialogInterface.OnClickListener() {
        public void onClick(DialogInterface dialog, int id) {
            Log.d(TAG, "POSITIVE button");
        }
    });
    builder.setNegativeButton(getResources().getText(R.string.dialogBoxSettingsNegativeButton), new DialogInterface.OnClickListener() {
        public void onClick(DialogInterface dialog, int id) {
            Log.d(TAG, "NEGATIVE button");
        }
    });
    // Create the AlertDialog object and return it
    return builder.create();
}

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