Android 通过字符串来获取R上面资源的ID 值

方法一：

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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：

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Resources res=getResources();  int i=res.getIdentifier("icon","drawable",getPackageName());  Log.i("res",Integer.toString(i));  

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