如何去除launcher 上默认的 google search bar.

MT6515/75/17/77 Android ICS/ICS2请参考如下改法：
1: Launcher2\res\layout\qsb_bar.xml中，
layout="@layout/search_bar"
android:visibility="gone" />　//加入 android:visibility="gone"

2: Launcher2\src\com\android\launcher2\SearchDropTargetBar.java 中
onFinishInflate() 方法内，将mQSBSearchBarFadeInAnim相关的部分作如下修改：
mQSBSearchBarFadeInAnim = ObjectAnimator.ofFloat(mQSBSearchBar, "alpha", 0f); //最后一个参数改为 0f, 原来是 1f
mQSBSearchBarFadeInAnim.setDuration(sTransitionInDuration);
mQSBSearchBarFadeInAnim.addListener(new AnimatorListenerAdapter() {
@Override
public void onAnimationStart(Animator animation) {
mQSBSearchBar.setVisibility(View.INVISIBLE); //参数改为 View.INVISIBLE, 原来是 View.VISIBLE

3: 仍然是此 java 文件，将showSearchBar() 方法作如下修改：
public void showSearchBar(boolean animated) {
if (LauncherLog.DEBUG) LauncherLog.d(TAG, "(SearchDropTargetBar)showSearchBar animated = " + animated);
cancelAnimations();
if (animated) {
mQSBSearchBarFadeInAnim.start();
} else {
mQSBSearchBar.setVisibility(View.INVISIBLE); //参数改为：View.INVISIBLE
mQSBSearchBar.setAlpha(0f); //参数改为 0f.
}
mIsSearchBarHidden = false;
}
}
});

MT6515/75/17/77 Android JB

1: Launcher2\res\layout\qsb_bar.xml中，
layout="@layout/search_bar"
android:visibility="gone" />　//加入 android:visibility="gone"

2: Launcher2\src\com\android\launcher2\SearchDropTargetBar.java 中
onFinishInflate() 方法内，将mQSBSearchBarAnim 相关的部分作如下修改：
// Create the various fade animations
if (mEnableDropDownDropTargets) {
mDropTargetBar.setTranslationY(-mBarHeight);
mDropTargetBarAnim = ObjectAnimator.ofFloat(mDropTargetBar, "translationY",
-mBarHeight, 0f);
mQSBSearchBarAnim = ObjectAnimator.ofFloat(mQSBSearchBar, "translationY",-mBarHeight,
-mBarHeight); //modify 3rd para to -mBarHeight
} else {
mDropTargetBar.setAlpha(0f);
mDropTargetBarAnim = ObjectAnimator.ofFloat(mDropTargetBar, "alpha", 0f, 1f);
mQSBSearchBarAnim = ObjectAnimator.ofFloat(mQSBSearchBar, "alpha", 0f, 0f); //modify 3rd para to 0f;
}

3: 仍然是这只 java 文件，将showSearchBar 方法作如下修改：
public void showSearchBar(boolean animated) {
if (!mIsSearchBarHidden) return;
if (animated) {
prepareStartAnimation(mQSBSearchBar);
mQSBSearchBarAnim.reverse();
} else {
mQSBSearchBarAnim.cancel();
if (mEnableDropDownDropTargets) {
mQSBSearchBar.setTranslationY(0);
} else {
mQSBSearchBar.setAlpha(0f); //参数改为 0f;
}
}
mIsSearchBarHidden = false;
}

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