1、 AppsCustomizePagedView.java修改两处如下：
1) private void setupPage(AppsCustomizeCellLayout layout) {
layout.setGridSize(mCellCountX, mCellCountY);
// Note: We force a measure here to get around the fact that when we do layout calculations
// immediately after syncing, we don‘t have a proper width. That said, we already know the
// expected page width, so we can actually optimize by hiding all the TextView-based
// children that are expensive to measure, and let that happen naturally later.
setVisibilityOnChildren(layout, View.GONE);
int widthSpec = MeasureSpec.makeMeasureSpec(mContentWidth, MeasureSpec.AT_MOST);
int heightSpec = MeasureSpec.makeMeasureSpec(mContentHeight, MeasureSpec.AT_MOST);
layout.measure(widthSpec, heightSpec);
if(!Launcher.DISABLE_APPLIST_WHITE_BG) {//add
Drawable bg = getContext().getResources().getDrawable(R.drawable.quantum_panel);
if (bg != null) {
bg.setAlpha(mPageBackgroundsVisible ? 255: 0);
layout.setBackground(bg);
}
} else {//add
layout.setBackground(null);//add
}//add
setVisibilityOnChildren(layout, View.VISIBLE);
}
2) public void syncAppsPageItems(int page, boolean immediate) {
......
AppInfo info = mApps.get(i);
BubbleTextView icon = (BubbleTextView) mLayoutInflater.inflate(
R.layout.apps_customize_application, layout, false);
if(Launcher.DISABLE_APPLIST_WHITE_BG) {//add
icon.setTextColor(getContext().getResources().getColor(R.color.quantum_panel_transparent_bg_text_color));//add
}//add
icon.applyFromApplicationInfo(info);
icon.setOnClickListener(mLauncher);
icon.setOnLongClickListener(this);
......
2、colors.xml中新增：
<color name="quantum_panel_transparent_bg_text_color">#FFFFFF</color>
3、 DeviceProfile.java修改layout(Launcher launcher)方法如下：
......
pagedView.setWidgetsPageIndicatorPadding(pageIndicatorHeight);
if(Launcher.DISABLE_APPLIST_WHITE_BG) {//add
fakePage.setBackground(null);//add
} else {//add
fakePage.setBackground(res.getDrawable(R.drawable.quantum_panel));
}//add
// Horizontal padding for the whole paged view
int pagedFixedViewPadding =
res.getDimensionPixelSize(R.dimen.apps_customize_horizontal_padding);
......
4. Launcher.java
1)新增：
//add begin
/// M: Disable applist white background for jitter performance issue {@
public static boolean DISABLE_APPLIST_WHITE_BG = true;
public static final String PROP_DISABLE_APPLIST_WHITE_BG = "launcher.whitebg.disable";
// should kill and restart launcher process to re-execute static block if reset properties
// adb shell setprop launcher.applist.whitebg.disable true/false
// adb shell stop
// adb shell start
static {
DISABLE_APPLIST_WHITE_BG = android.os.SystemProperties.getBoolean(PROP_DISABLE_APPLIST_WHITE_BG, true);
}
/// @}
//add end
2)showAppsCustomizeHelper方法修改如下：
......
if (isWidgetTray) {
revealView.setBackground(res.getDrawable(R.drawable.quantum_panel_dark));
} else {
if(Launcher.DISABLE_APPLIST_WHITE_BG) {//add
revealView.setBackground(null);//add
} else {//add
revealView.setBackground(res.getDrawable(R.drawable.quantum_panel));
}//add
}
......
3) hideAppsCustomizeHelper方法修改如下：
......
if (isWidgetTray) {
revealView.setBackground(res.getDrawable(R.drawable.quantum_panel_dark));
} else {
if(Launcher.DISABLE_APPLIST_WHITE_BG) {//add
revealView.setBackground(null);//add
} else {//add
revealView.setBackground(res.getDrawable(R.drawable.quantum_panel));
}//add
}
......