Android(安卓)如何去除Launcher上默认的google search bar？

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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;

}

});

JB:

1. Launcher2\res\layout\qsb_bar.xml中，

layout="@layout/search_bar"

android:visibility="gone" />　//加入 android:visibility="gone"

2. packages\apps\Launcher2\res\layout-port\launcher.xml

            android:id="@+id/voice_button_proxy"
            android:layout_width="80dp"
            android:layout_height="@dimen/qsb_bar_height"
            android:layout_gravity="top|right"
            android:clickable="false"    //modify this value to false
            onClick="onClickVoiceButton"
            android:importantForAccessibility="no"
            launcher:sourceViewId="@+id/voice_button" />

3. 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;

}

4. 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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