如何在 DialogFragment 中自定义标题

Question

我想在我的 DialogFragment 中自定义我的标题，我知道如何将标题设置为我的 DialogFragment ，但我想要的不仅仅是一个标题，我需要一个自定义的标题（颜色，字体大小......），所以我定义了一个 TextView 并自定义了它

public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
    View view = inflater.inflate(R.layout.height_fragment,container,false);

    TextView title =  new TextView(getContext());
    title.setText("Your Height Information");
    title.setGravity(Gravity.CENTER);
    title.setTextSize(30);
    title.setBackgroundColor(Color.GRAY);
    title.setTextColor(Color.WHITE);

    getDialog().setCustomTitle(title); //Error Can not resolve method setCustomTitle(android.widget.TextView)

    return view;
}

但是这一行有错误

getDialog().setCustomTitle(title);

getDialog().setCustomTitle(title);

在发布此问题之前我进行了很多搜索，但我找不到如何自定义我的 DialogFragment 标题。 感谢您花时间帮助我

Answer 1

“getDialog”没有方法“setCustomTitle”。该方法只能用于AlertDialog.Builder。试试这样：

getDialog().setTitle("Your Height Information");
TextView textView=(TextView) getDialog().findViewById(android.R.id.title);
textView.setTextSize(30);

Answer 2

我永远无法轻松自定义我的 DialogFragment 的标题。因此，相反，我使用删除标题并将 TextView 添加到对话框布局（并像标题一样使用它）。这样，您就可以轻松地自定义您想要的方式。

对话代码：

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {

    // Remove TITLE
    getDialog().getWindow().requestFeature(Window.FEATURE_NO_TITLE);


    View dialogView = dialogView = inflater.inflate(R.layout.height_fragment, null);

    // Do your stuff

    return dialogView;
}

height_fragment.xml

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent" >

    <TextView
        android:id="@+id/dialog_title"
        android:layout_width="match_parent"
        android:layout_height="56dp"

        <!-- THIS VIEW IS YOUR TITLE... CUSTOMIZE LYKE YOU WANT -->
        android:textColor="@color/white"
        android:textSize="18sp"
        android:textStyle="bold"
        android:layout_gravity="top"

        android:text="@string/TITLE"
        android:gravity="center_vertical"
        android:paddingLeft="16dp" />

    <!-- Real Content goes below the title -->
</FrameLayout>

Answer 3

您需要将您的 xml 连接到您的班级。 findViewById 告诉你的班级使用哪个 TextView。注意它必须如何匹配 xml 中的android:id：

public class DialogFragmentTest extends DialogFragment {

    public final static String TITLE = "title";
    public final static String MESSAGE = "message";

    @Override
    public Dialog onCreateDialog(Bundle savedInstanceState) {
        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
        // Get the layout inflater
        LayoutInflater inflater = getActivity().getLayoutInflater();
        View view = inflater.inflate(R.layout.dialog, null);

        // Inflate and set the layout for the dialog
        // Pass null as the parent view because its going in the dialog layout
        builder.setView(view);

        Bundle args = getArguments();
        String title = args.getString(TITLE, "default title");
        String msg = args.getString(MESSAGE, "default message");

        TextView tvTitle = (TextView)view.findViewById(R.id.dialog_title);
        tvTitle.setText(title);

        TextView tvMessage = (TextView)view.findViewById(R.id.dialog_message);
        tvMessage.setText(msg);

        Button btnDone = (Button)view.findViewById(R.id.dialog_button);
        btnDone.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                dismiss();
            }
        });

        return builder.create();
    }
}

dialog.xml：

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="300dp"
    android:layout_height="wrap_content">
    <TextView
        android:id="@+id/dialog_title"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:gravity="center_horizontal"
        android:text="title"/>
    <TextView
        android:id="@+id/dialog_message"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_below="@id/dialog_title"
        android:layout_marginTop="10dp"
        android:text="message"/>
    <Button
        android:id="@+id/dialog_button"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@id/dialog_message"
        android:layout_marginTop="20dp"
        android:layout_centerHorizontal="true"
        android:text="done"/>


</RelativeLayout>

然后从您的活动中调用：

DialogFragmentTest bd = new DialogFragmentTest();
Bundle b = new Bundle();
b.putString(DialogFragmentTest.TITLE, "my title");
b.putString(DialogFragmentTest.MESSAGE, "my message");
bd.setArguments(b);
bd.show(getFragmentManager(), "my title");

Answer 4

请使用基于 DialogFragment 的自定义对话框：

public class MyCustomDialog extends DialogFragment{
    private Context context;

    @Override
    public void onAttach(Context context) {
        super.onAttach(context);
        this.context = context;
    }

    @Nullable
    @Override
    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, Bundle savedInstanceState) {
        View dialogView = inflater.inflate(R.layout.custom_dialog, null, false);
        TextView tvTitle = (TextView) getDialog().findViewById(android.R.id.title);
        tvTitle.setTextSize(25);
        tvTitle.setTextColor(Color.GREEN);

        return dialogView;
    }

    @Override
    public Dialog onCreateDialog(Bundle savedInstanceState) {

        Dialog dialog = new Dialog(this.context, R.style.CustomDialog);
        dialog.setTitle("custom dialog title");
        dialog.getWindow().setLayout(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT);
        return dialog;
    }

    public static MyCustomDialog newInstance() {

        MyCustomDialog myCustomDialog = new MyCustomDialog();
        return myCustomDialog;
    }
}