Question

我有一个基本的TabActivity。在Android 2.1（可能还有旧版本）上，它看起来像是在标签小部件下面添加了一个投影。在2.3，这个阴影不存在。有没有办法彻底扭转阴影？也许像“android：fadingEdgeLength = 0”？

由于

Answer 1

你在谈论白条吗？我通过在 onTabChanged

中调用此方法来破解这个过程

让您实现 OnTabChangeListener

 private static TabHost mTabHost;

 @Override
protected void onCreate(Bundle savedInstanceState) {
      // Instantiate your tab host normally
 }


 @Override
     public void onTabChanged(String tabId) {
         removeWhiteStrip(mTabHost);
 }

 /**
 * Hack
 * @param tabHost
 */
private static void removeWhiteStrip(TabHost tabHost) {
    TabWidget tw = (TabWidget) tabHost.getChildAt(1);

    Field mBottomLeftStrip;
    Field mBottomRightStrip;

    try {
        mBottomLeftStrip = tw.getClass().getDeclaredField("mBottomLeftStrip");
        mBottomRightStrip = tw.getClass().getDeclaredField("mBottomRightStrip");

        if (!mBottomLeftStrip.isAccessible()) {
            mBottomLeftStrip.setAccessible(true);
        }

        if (!mBottomRightStrip.isAccessible()) {
            mBottomRightStrip.setAccessible(true);
        }

 // This is a blank drawable basically a 1x1 png with 100% alpha
        mBottomLeftStrip.set(tw, MyApp.getInstance().getResources().getDrawable(R.drawable.blank));
        mBottomRightStrip.set(tw, MyApp.getInstance().getResources().getDrawable(R.drawable.blank));

    } 
    catch (java.lang.NoSuchFieldException e) {
        // possibly 2.2
        try {
            Method stripEnabled = tw.getClass().getDeclaredMethod("setStripEnabled", boolean.class);
            stripEnabled.invoke(tw, false);

        } 
        catch (Exception e1) {
            e1.printStackTrace();
        }
    } 
    catch (Exception e) {
        // tut tut shouldn't catch generic exception and ignore it
            // but we do because this is a hack
    }

}

享受

TabHost - 摆脱投影？

1 个答案: