更改弹出对话框的背景颜色 [英] Change the background color of a pop-up dialog

问题描述

我写的Andr​​oid code，显示了弹出对话框，但我想从黑色改变背景颜色为白色，然后在写作的颜色。

这是对话的code：

 米preFS = preferenceManager.getDefaultShared preferences（本）;

    布尔welcomeScreenShown = M prefs.getBoolean（welcomeScreenShown preF，假）;

    如果（！welcomeScreenShown）{


        字符串whatsNewText = getResources（）的getString（R.string.Text）。
        新AlertDialog.Builder（本）.setMessage（whatsNewText）.setPositiveButton（
                R.string.ok，新DialogInterface.OnClickListener（）{
            公共无效的onClick（DialogInterface对话，诠释它）{
                dialog.dismiss（）;
            }
        }）。显示（）;
        共享preferences.Editor编辑= M prefs.edit（）;
        editor.putBoolean（welcomeScreenShown preF，真正的）;
        editor.commit（）; //非常重要，保存preference
    }
 

解决方案

如果你只是想要一个光的主题，并且不拘泥于特定的颜色，那么你可以通过一个主题ID到AlertDialog.Builder构造。

  AlertDialog.Builder（这一点，AlertDialog.THEME_HOLO_LIGHT）...
 

或

  AlertDialog.Builder（这一点，AlertDialog.THEME_DEVICE_DEFAULT_LIGHT）...
 

I wrote android code that shows a pop-up dialog but I want to change the background color from black to white , and then the color of the writing.

This is the dialog's code:

mPrefs = PreferenceManager.getDefaultSharedPreferences(this);

    Boolean welcomeScreenShown = mPrefs.getBoolean(welcomeScreenShownPref, false);

    if (!welcomeScreenShown) {


        String whatsNewText = getResources().getString(R.string.Text);
        new AlertDialog.Builder(this).setMessage(whatsNewText).setPositiveButton(
                R.string.ok, new DialogInterface.OnClickListener(){
            public void onClick(DialogInterface dialog, int which) {
                dialog.dismiss();
            }
        }).show();
        SharedPreferences.Editor editor = mPrefs.edit();
        editor.putBoolean(welcomeScreenShownPref, true);
        editor.commit(); // Very important to save the preference
    }

解决方案

If you just want a light theme and aren't particular about the specific color, then you can pass a theme id to the AlertDialog.Builder constructor.

AlertDialog.Builder(this, AlertDialog.THEME_HOLO_LIGHT)...

or

AlertDialog.Builder(this, AlertDialog.THEME_DEVICE_DEFAULT_LIGHT)...

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