Android 通过字符串来获取R下面资源的ID 值

方法一：

 

try{  
 Field field=R.drawable.class.getField("icon");  
 int i= field.getInt(new R.drawable());  
  Log.d("icon",i+"");  
}catch(Exception e){  
 Log.e("icon",e.toString());  
}  

 方法二：

	//把字符串转换为资源Id
	public static int getResourdIdByResourdName(Context context, String defType, String ResName){
        Resources res = context.getResources();  
        int resourceId = res.getIdentifier(ResName,defType,context.getPackageName());  
        
        return resourceId;
	}