如何從當前主題獲得背景色編程

Question

我想是這樣的，但我堅持：

TypedValue typedValue = new TypedValue(); 
if (this.parentActivity.getTheme().resolveAttribute(android.R.attr.windowBackground, typedValue, true)) 
{ 
    // how to get color? 
} 

Answer 1

你可以得到從當前主題背景顏色（或可繪製）通過：

TypedValue a = new TypedValue(); 
getTheme().resolveAttribute(android.R.attr.windowBackground, a, true); 
if (a.type >= TypedValue.TYPE_FIRST_COLOR_INT && a.type <= TypedValue.TYPE_LAST_COLOR_INT) { 
    // windowBackground is a color 
    int color = a.data; 
} else { 
    // windowBackground is not a color, probably a drawable 
    Drawable d = activity.getResources().getDrawable(a.resourceId); 
} 

Answer 2

您可以通過使用讓您的主題的資源：

TypedArray a = getTheme().obtainStyledAttributes(R.style.ThemeName, new int[] {R.attr.attribute_name});  
int attributeResourceId = a.getResourceId(0, 0); 

Answer 3

爲您的qoustion最簡單的方法是：

TypedValue typedValue = new TypedValue(); 
if (this.parentActivity.getTheme().resolveAttribute(android.R.attr.windowBackground, typedValue, true)) 
{ 
    // how to get color? 
    int colorWindowBackground = typedValue.data;// **just add this line to your code!!** 
}