MTK预置系统的apk，禁止升级，隐藏系统apk的icon

packages\apps\Launcher3\src\com\android\launcher3\AllAppsList.java

/* Hide Package List by wdl*/
public final String mHidePackage[] ={
   "com.suspended.of.returnkey"//需要隐藏的apk的包名
}; 
//wdl add end
 public void add(AppInfo info) {
    if (LauncherLog.DEBUG) {
        LauncherLog.d(TAG, "Add application in app list: app = " + info.componentName
                + ", title = " + info.title);
    }

    if (mAppFilter != null && !mAppFilter.shouldShowApp(info.componentName)) {
        return;
    }
    if (findActivity(data, info.componentName)) {
        LauncherLog.i(TAG, "Application " + info + " already exists in app list, app = " + info);
        return;
    }
    
       // add