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标题，还需要一个自定义标题（color，fontSize ...），所以我定义了一个TextView和定制它

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; 
} 

但在这一行

getDialog().setCustomTitle(title); 

getDialog（）错误setCustomTitle（职称）。

在发布这个问题之前，我搜索了很多，但我找不到我如何自定义我的DialogFragment标题。 感谢您花时间帮助我

Answer 1

我永远无法轻松定制我的DialogFragment的标题。因此，我使用删除标题并将TextView添加到对话框布局（并将其用作标题）。这样，您可以自定义您想要的方式。

的对话框代码：

@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 2

您需要将XML连接到您的班级。 findViewById告诉你的课程使用哪个TextView。请注意如何，必须在XML中android:id匹配：

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> 

这是然后从你的活动调用：

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 3

“getDialog” 不有一个方法“setCustomTitle”。该方法只能用于AlertDialog.Builder。试着这样说：

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

Answer 4

请使用自定义对话框，根据DialogFragment：

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; 
    } 
}