java 安卓句柄选择器状态

Question

我使用以下代码将图像从内存加载到选项卡图标。已为启用状态_正确加载图像，但选择状态_时没有更改。我做错了什么？多谢各位

ImageView icon = (ImageView) tabIndicator.findViewById(R.id.icon);

        File imgFile = new  File("data/data/"+PACKAGE_NAME+"/biblioteca/" + imageName);
        File imgFileSel = new  File("data/data/"+PACKAGE_NAME+"/biblioteca/" + imageName);

        Bitmap myBitmap = BitmapFactory.decodeFile(imgFile.getAbsolutePath());
        Drawable d = new BitmapDrawable(myBitmap);

        Bitmap myBitmapSelected = BitmapFactory.decodeFile(imgFileSel.getAbsolutePath());
        Drawable dSel = new BitmapDrawable(myBitmapSelected);

        StateListDrawable selector = new StateListDrawable();
        selector.addState(new int[]{ 安卓.R.attr.state_enabled }, d);
        selector.addState(new int[]{ 安卓.R.attr.state_selected }, dSel);
        icon.setImageDrawable(selector);}

xml发出警报“缺少内容描述”

<ImageView 安卓:id="@+id/icon"
        安卓:layout_width="wrap_content"
        安卓:layout_height="wrap_content"
        安卓:layout_centerHorizontal="true"
        安卓:src="@drawable/icon"

    /> 

Answer 1

帮助你

及

missing content description  

ant这只是皮棉错误检查。。。。这没什么区别

Answer 2

StateListDrawable selector = new StateListDrawable();
selector.addState(new int[]{ android.R.attr.state_pressed }, dSel);
selector.addState(new int[]{ android.R.attr.state_focussed }, dSel);
selector.addState(new int[]{ android.R.attr.state_enabled }, d);
selector.addState(new int[]{ android.R.attr.state_selected }, dSel);
icon.setImageDrawable(selector);

也可以参考这个LINK