正文
android 怎样将主菜单图标改成按安装时间排序
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1. 在 LauncherModel.java 中增加例如以下代码, 假设是KK Launcher3 ApplicationInfo要替换为AppInfo
public static final Comparator<ApplicationInfo> getInstallTimeComparator() {
return new Comparator<ApplicationInfo>() {
public final int compare(ApplicationInfo a, ApplicationInfo b) {
return a.firstInstallTime == b.firstInstallTime ?
0 : a.firstInstallTime > b.firstInstallTime ? 1:-1;
}
};
}
public static class InstallTimeComparator implements Comparator<ResolveInfo> {
private PackageManager mPackageManager;
List<ResolveInfo> mapps;
InstallTimeComparator(PackageManager pm, List<ResolveInfo> apps)
{
mPackageManager = pm;
mapps = apps;
}
public final int compare(ResolveInfo a, ResolveInfo b) {
String packageNameA = a.activityInfo.applicationInfo.packageName;
String packageNameB = b.activityInfo.applicationInfo.packageName;
long firstInstallTimeA = 0, firstInstallTimeB = 0;
try{
firstInstallTimeA = mPackageManager.getPackageInfo(packageNameA, 0).firstInstallTime;
firstInstallTimeB = mPackageManager.getPackageInfo(packageNameB, 0).firstInstallTime;
}catch(Exception e){
e.printStackTrace();
return 0;
}
return firstInstallTimeA == firstInstallTimeB ?
0 : firstInstallTimeA > firstInstallTimeB ?
1:-1;
}
};
2. 改动 LauncherModel.java 的 loadAllAppsByBatch() 方法:
将
Collections.sort(apps,new LauncherModel.ShortcutNameComparator(packageManager, mLabelCache));
替换成:
Collections.sort(apps,new InstallTimeComparator(packageManager, apps));
3. 改动 AppsCustomizePagedview.java 的 setApps 方法
将
Collections.sort(mApps, LauncherModel.getAppNameComparator());
替换成:
Collections.sort(mApps, LauncherModel.getInstallTimeComparator());
4. 系统排序会调用reorderApps方法，因此您在其它条件下也要达到安装时间排序，请在相应的reorderApps方法调用前添加
Collections.sort(mApps, LauncherModel.getInstallTimeComparator());
比如：安装的应用后也想安装新的排序方式排列，须要在AppsCustomizePagedview.java 的 addApps 方法前添加sort的调用
