LauncherShowAllApps

  最近在学习Launcher
对加载APPS这一块总结了一下，有2块：Load，Bind。
这里偏重于load，如何取出了APPS的title、icon、packagename
可以用于APPS的展现的修改


Launcher.java
LauncherApplication app = ((LauncherApplication)getApplication());
        mModel = app.setLauncher(this);   //初始化mModel.initialize(launcher);
        mIconCache = app.getIconCache();

if (!mRestoring) {
            mModel.startLoader(this, true);
        }                                   //进入了LanucherModel，开始加载


LanucherModel.java
oldThread.stopLocked(); //等待旧进程
mLoaderThread = new LoaderThread(context, oldThread, isLaunching);
                    mLoaderThread.start();

private void loadAndBindAllApps() {

if (!loaded) {
                    loadAllAppsByBatch();

再次调用的话 loaded = mAllAppsLoaded;
                    mAllAppsLoaded = true;
就会直接进入 else {
                    onlyBindAllApps();

mAllAppsList.add(new ApplicationInfo(apps.get(i), mIconCache));
//将取得的值放入AllAppsList
如何取值后面再说

    callbacks.bindAllApplications(added);
                                    } else {
                                        callbacks.bindAppsAdded(added);
                                    }       //绑定应用


下面，来说如何传值
mAllAppsList.add(new ApplicationInfo(apps.get(i), mIconCache));
看ApplicationInfo     public ApplicationInfo(ResolveInfo info, IconCache iconCache) {
iconCache.getTitleAndIcon(this, info);

进入getTitleAndIcon
CacheEntry entry = cacheLocked(application.componentName, info);

mCache.put(componentName, entry);
entry.title = info.loadLabel(mPackageManager).toString();   //取得标题
entry.icon = Utilities.createIconBitmap(
                    info.activityInfo.loadIcon(mPackageManager), mContext);  //取得图片

application.title = entry.title;
            application.titleBitmap = entry.titleBitmap;
            application.iconBitmap = entry.icon;

回到AllAppList
里面对应用进行了操作 add remove update

要想对应用的显示进行操作，必须有唯一标识 一般选择应用的包名
如何取得包名 看removePackage
final ComponentName component = info.intent.getComponent();
            if (packageName.equals(component.getPackageName())) {

同理：如果你想在应用的GRID中显示你需要的应用
就在add方法中加入判断对data.add(info);
        added.add(info); 进行操作

应用程序的GRID AllApps2D
从 final ApplicationInfo info = getItem(position);
   
所有值都存在于
public ApplicationInfo(ApplicationInfo info) {
        super(info);
        componentName = info.componentName;
        title = info.title.toString();
        intent = new Intent(info.intent);
    }

要是想知道为什么能取得值，请进framework里查看取值类的源码


写的很简单，有错误或遗漏什么请大家点出，讨论一下。