Launcher3--launcher3 icon以及hotseat size大小修改

本帖最后由 wangjicong 于 2017-3-9 17:12 编辑 1.首先看icon大小的修改。        Launcher3在启动Launcher.java过程会先初始话一些列的参数配置。       1). Laucher.java    @Override     protected void onCreate(Bundle savedInstanceState) {         if (DEBUG_STRICT_MODE) {             StrictMode.setThreadPolicy(new StrictMode.ThreadPolicy.Builder()                     .detectDiskReads()                     .detectDiskWrites()                     .detectNetwork()   // or .detectAll() for all detectable problems                     .penaltyLog()                     .build());             StrictMode.setVmPolicy(new StrictMode.VmPolicy.Builder()                     .detectLeakedSqlLiteObjects()                     .detectLeakedClosableObjects()                     .penaltyLog()                     .penaltyDeath()                     .build());         }         if (mLauncherCallbacks != null) {             mLauncherCallbacks.preOnCreate();         }         super.onCreate(savedInstanceState);         LauncherAppState.setApplicationContext(getApplicationContext());         LauncherAppState app = LauncherAppState.getInstance(); 复制代码         Launcher.java  在oncreate的过程中，通过单例模式LauncherAppState.java来初始话。        上面  mInvariantDeviceProfile = new InvariantDeviceProfile(sContext);就是对页面布局，icon大小，hotseat 大小一些参数的自适。 <div> </div><div>private LauncherAppState() {     if (sContext == null) {         throw new IllegalStateException("LauncherAppState inited before app context set");     }     Log.v(Launcher.TAG, "LauncherAppState inited");     if (sContext.getResources().getBoolean(R.bool.debug_memory_enabled)) {         MemoryTracker.startTrackingMe(sContext, "L");     }     mInvariantDeviceProfile = new InvariantDeviceProfile(sContext);     mIconCache = new IconCache(sContext, mInvariantDeviceProfile);     mWidgetCache = new WidgetPreviewLoader(sContext, mIconCache);     mAppFilter = AppFilter.loadByName(sContext.getString(R.string.app_filter_class));     mBuildInfo = BuildInfo.loadByName(sContext.getString(R.string.build_info_class));     mModel = new LauncherModel(this, mIconCache, mAppFilter);     LauncherAppsCompat.getInstance(sContext).addOnAppsChangedCallback(mModel);     // Register intent receivers     IntentFilter filter = new IntentFilter();     filter.addAction(Intent.ACTION_LOCALE_CHANGED);     filter.addAction(SearchManager.INTENT_GLOBAL_SEARCH_ACTIVITY_CHANGED);     filter.addAction(SearchManager.INTENT_ACTION_SEARCHABLES_CHANGED);     // For handling managed profiles     filter.addAction(LauncherAppsCompat.ACTION_MANAGED_PROFILE_ADDED);     filter.addAction(LauncherAppsCompat.ACTION_MANAGED_PROFILE_REMOVED);     sContext.registerReceiver(mModel, filter);     mUnreadInfoManager = new SprdUnreadInfoManager(this);     SprdUnreadInfoManager.getInstance().init(this); }</div> 复制代码        修改icon大小：       在InvariantDeviceProfile 的构造函数中：       iconSize = interpolatedDeviceProfileOut.iconSize;         /*SUN:jicong.wang add for custom icon size start {@*/         String sunvov_custom_icon_size = context.getResources().getString(R.string.sunvov_icon_size);         if (!"ignore".equals(sunvov_custom_icon_size)){             iconSize = Float.parseFloat(sunvov_custom_icon_size);         }         /*SUN:jicong.wang add for custom icon size end @}*/ 复制代码    2.修改hotseat icon的大小：          在修改玩icon大小之后，发现shortcut icon的大小和主菜单中icon的大小同步变化了，但是hotseat icon的大小比icon的较大；         通过源码发现：CellLayout.java     public boolean addViewToCellLayout(View child, int index, int childId, LayoutParams params,             boolean markCells) {         final LayoutParams lp = params;         // Hotseat icons - remove text         if (child instanceof BubbleTextView) {             BubbleTextView bubbleChild = (BubbleTextView) child;             bubbleChild.setTextVisibility(!mIsHotseat);         }         child.setScaleX(getChildrenScale());         child.setScaleY(getChildrenScale());         // Generate an id for each view, this assumes we have at most 256x256 cells         // per workspace screen         if (lp.cellX >= 0 && lp.cellX <= mCountX - 1 && lp.cellY >= 0 && lp.cellY <= mCountY - 1) {             // If the horizontal or vertical span is set to -1, it is taken to             // mean that it spans the extent of the CellLayout             if (lp.cellHSpan < 0) lp.cellHSpan = mCountX;             if (lp.cellVSpan < 0) lp.cellVSpan = mCountY;             child.setId(childId);             mShortcutsAndWidgets.addView(child, index, lp);             if (markCells) markCellsAsOccupiedForView(child);             return true;         }         return false;     } 复制代码            通过上面发现在addview的过程中居然需要child.setScaleX(getChildrenScale());            mHotseatScale = (float) grid.hotseatIconSizePx / grid.iconSizePx;            修改：         final Resources res = getResources();         /*SUN:jicong.wang add for hotseat icon size same with shortcut icon start {@*/         if (!res.getBoolean(R.bool.sunvov_hotseat_shortcut_icon_size_same)){                     mHotseatScale = (float) grid.hotseatIconSizePx / grid.iconSizePx;         }         /*SUN:jicong.wang add for hotseat icon size same with shortcut icon end @}*/ 复制代码