Android示例HelloGallery中R.styleable unresolved的解决办法

     今天尝试编译Android SDK中APIDemos中的程序,调试到HelloGallery的时候,在下面这段代码中:public ImageAdapter(Context c) { mContext = c; TypedArray a = obtainStyledAttributes(android.R.styleable.Theme); mGalleryItemBackground = a.getResourceId( android.R.styleable.Theme_galleryItemBackground, 0); a.recycle(); }  

    编译出错,提示说android.R.styleable unresolved,在网上查了下,说R.styleable在SDK1.5中已经不再支持,所以会出现这个错误。解决方法如下:

1.在res/values目录下新建attrs.xml,在其中添加如下内容:

<?xml version="1.0" encoding="utf-8"?> <resources> <declare-styleable name="Gallery"> <attr name="android:galleryItemBackground"> </attr> </declare-styleable> </resources>

2.修改HelloGallery.java,将出错的那段代码:

public ImageAdapter(Context c) { mContext = c; TypedArray a = obtainStyledAttributes(android.R.styleable.Theme); mGalleryItemBackground = a.getResourceId( android.R.styleable.Theme_galleryItemBackground, 0); a.recycle(); }

修改为:

public ImageAdapter(Context c) { mContext = c; TypedArray a = obtainStyledAttributes(R.styleable.Gallery); mGalleryItemBackground = a.getResourceId( R.styleable.Gallery_android_galleryItemBackground, 0); a.recycle(); }

3.重新运行就可以了

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