Question

我想将一个drawable放入一个对话框标题栏。我尝试了以下方法：

final Dialog dialog = new Dialog(this);
dialog.requestWindowFeature(Window.FEATURE_LEFT_ICON);
dialog.setFeatureDrawableResource(Window.FEATURE_LEFT_ICON, R.drawable.some_icon);
dialog.setTitle(R.string.my_dialog_title);
dialog.setContentView(R.layout.my_dialog_layout);
...

图标未显示但标题向右移动一点。看来对话框为drawable保留空间但不绘制它。我尝试了几个不同的图标（也来自android资源），但没有使用它们。

Answer 1

在 setFeatureDrawableResource()之后致电show() 。

不知道为什么会这样。：）

Answer 2

这是解决方案

final Dialog dialog = new Dialog(this);
dialog.requestWindowFeature(Window.FEATURE_LEFT_ICON);
dialog.setTitle(R.string.my_dialog_title);
dialog.setContentView(R.layout.my_dialog_layout);
dialog.setFeatureDrawableResource(Window.FEATURE_LEFT_ICON,R.drawable.some_icon);
dialog.show();

如果您希望对话框看起来像一个活动，而不是按照

将对象添加到对话框中

final Dialog dialog = new Dialog(this,AlertDialog.THEME_HOLO_LIGHT);

Answer 3

你也可以扩展Dialog类，如下所示：

public class CustomDialog extends Dialog {

    public CustomDialog(Context context) {
        super(context);
        setTitle("Some Title");
        requestWindowFeature(Window.FEATURE_LEFT_ICON);
        setContentView(R.layout.my_layout);
    }

    @Override
    protected void onStart() {
        setFeatureDrawableResource(Window.FEATURE_LEFT_ICON, R.drawable.my_icon);
        super.onStart();
    }

即。您在构造函数中准备窗口功能，然后在onStart中设置具体资源。

因此，在您的主要代码中，您只需使用：

    CustomDialog cd = new CustomDialog(getActivity());
    rd.show();

Answer 4

这是解决方案。按照食谱，你应该有你的图标！注意：订单非常重要......

        final Dialog yourDialog = new Dialog(YourClass.this);
            yourDialog.requestWindowFeature(Window.FEATURE_LEFT_ICON);  //must come BEFORE setContentView
            yourDialog.setContentView(R.layout.yourDialog_layout);
            yourDialog.setTitle("Your Title");
            yourDialog.setCancelable(true);  
            yourDialog.setFeatureDrawableResource(Window.FEATURE_LEFT_ICON, R.drawable.your_icon);  //must come AFTER setContentView

Answer 5

感谢SmaïlHammour的帖子，我以不同的方式工作。

将此静态方法放在首选工具类中：

public static void msgBox( String msg, String title, int type, final Context c){

    int theIcon = drawable.ic_dialog_alert;

    switch(type){
    case YourToolClass.CONFIRMATION:
        theIcon = drawable.ic_menu_help;
        break;      
    case YourToolClass.INFO:
        theIcon = drawable.ic_dialog_info;
        break;
    case YourToolClass.ALERT:
    default:
    }

AlertDialog.Builder builder = new AlertDialog.Builder(c);

    /* Here enters the .setIcon: */
builder.setMessage(msg) .setTitle (title) .setIcon(theIcon);

builder.setPositiveButton( "OK", new DialogInterface.OnClickListener() {
    public void onClick(DialogInterface dialog, int id) {
        /*  */
    }
}); 


AlertDialog dialog = builder.create(); 
dialog.show();

}

要调用：

YourToolClass.msgBox("the main message goes here", "Test", getBaseContext());

Answer 6

setIcon(R.drawable.image_name)

Answer 7

调用setFeatureDrawableResource llike this

 dialog.show();
 dialog.setFeatureDrawableResource(Window.FEATURE_LEFT_ICON, R.drawable.logo_1x);

即在调用dialog.show（）之后在我的情况下完美地工作..谢谢.. :)）

如何将图标放入自定义对话框的标题中

7 个答案: