Android 通过字符串来获取R下面资源的ID 值

1. [代码]方法一：      

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try{ 

 Field field=R.drawable.class.getField("icon"); 

 inti= field.getInt(newR.drawable()); 

  Log.d("icon",i+""); 

}catch(Exception e){ 

 Log.e("icon",e.toString()); 

}

2. [代码]方法二：     

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Resources res=getResources(); 

inti=res.getIdentifier("icon","drawable",getPackageName()); 

 

Log.i("res",Integer.toString(i));

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