public Set getDefaultLaunchers() {
Set defaultLaunchers = new HashSet();
PackageManager packageManager = getPackageManager();
Intent intent = new Intent(Intent.ACTION_MAIN);
intent.addCategory(Intent.CATEGORY_HOME);
// 查询所有已安装的桌面应用
List launcherList = packageManager.queryIntentActivities(intent,
PackageManager.MATCH_DEFAULT_ONLY);
// 获取默认的桌面应用，没有指定默认桌面时返回”android”
ResolveInfo defaultLauncher = packageManager.resolveActivity(intent,
PackageManager.MATCH_DEFAULT_ONLY);
if (launcherList != null && defaultLauncher != null) {
String pkgName = defaultLauncher.activityInfo.packageName;
System.out.println(“zyf default launcher is : ” + pkgName);
// 没有指定默认桌面时返回的是“android”，故这里过滤下防止“android”被添加到默认桌面列表中
for (ResolveInfo info : launcherList) {
System.out.println(“zyf launcher : ” + info.activityInfo.packageName);
if (info.activityInfo.packageName.equals(pkgName)) {
defaultLaunchers.add(pkgName);
}
}
}
// 有多个桌面应用，且目前没有指定默认桌面时，返回所有的桌面应用
if (defaultLaunchers.isEmpty() && launcherList != null) {
for (ResolveInfo resolveInfo : launcherList) {
defaultLaunchers.add(resolveInfo.activityInfo.packageName);
}
}
System.out.println(“zyf defaultLaunchers : ” + defaultLaunchers);
return defaultLaunchers;
}
