Android实现更换皮肤功能 -优快云博客

本文链接：https://blog.youkuaiyun.com/iteye_6066/article/details/82402550

本文介绍了一种方法，用于根据当前设置的主题，在Android应用中为特定视图设置背景图片。该方法从首选项中读取主题包名，并尝试获取对应资源，如果成功则设置视图背景。

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public static void setWidgetTheme(Context context, View view, String
resName){
String pkgName =
PreferenceManager.getDefaultSharedPreferences(context).getString(PREF_KEY_THEME_PACKAGE,
context.getPackageName());
Resources
themeResources = null;
try {
themeResources =
context.getPackageManager().getResourcesForApplication(pkgName);
} catch (NameNotFoundException e) {
e.printStackTrace();
}

if(themeResources == null){
try {
pkgName =
context.getPackageName();
themeResources =
context.getPackageManager().getResourcesForApplication(pkgName);
saveThemePackageName(context, pkgName);
} catch (NameNotFoundException e) {
e.printStackTrace();
}
}

if(themeResources == null){
return;
}

try {
int resource_id = themeResources.getIdentifier(resName,
"drawable",
pkgName);

if(resource_id != 0){
Drawable
drawable = themeResources.getDrawable(resource_id);
if(view != null){
view.setBackgroundDrawable(drawable);
}else{
Log.w(TAG, "View is null!
resName = " + resName);
}

}
} catch(Resources.NotFoundException e){
e.printStackTrace();
}
}