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How to access the resource of com.android.internal.R
网友分享于:Jan 1, 1970 8:00:00 AM    来源: IT货架   

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最近在做一个android player项目,想要默认使用android的internal资源,比如:

com.android.internal.R.layout.media_controller



但是,直接使用会报编译错误:

com.android.internal.R does not exist

You cannot import the internal android class, as the internal.R class isn‘t visible.

但是可以通过其他的方式来访问,如下:

int mediaControllerId = Resources.getSystem().getIdentifier("media_controller", "layout", "android");

View layout = ((LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE)).inflate(mediaControllerId, this);



同理,可以访问:

mPrevButton = (ImageButton) layout.findViewById(Resources.getSystem().getIdentifier("prev","id", "android"));
mProgress = (ProgressBar) layout.findViewById(Resources.getSystem().getIdentifier("mediacontroller_progress","id", "android"));
mPauseButton = (ImageButton) layout.findViewById(Resources.getSystem().getIdentifier("pause","id", "android"));

getIdentifier的使用方式如下,会返回name对应的id,

Resources.getSystem().getIdentifier(name, defType, defPackage)



而上述name/defType/defPackage如何得到?可以从源码中获得相应的信息  http://grepcode.com/file/repository.grepcode.com/java/ext/com.google.android/android/4.2.2_r1/android/widget/MediaController.java

How to access the resource of com.android.internal.R

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