获取手机应用排除系统无法打开的组件，按照安装顺序排序
private void initData() {
if (mSwitchBean !=null)
mTv_showMsg.setText(getActivity().getString(mSwitchBean.getUserId()) +"---" +mSwitchBean.getTitleId() +"---" +mSwitchBean.getDescription() +"---" +mSwitchBean.getUrl());
PackageManager pm = getActivity().getPackageManager();
// 查询所有已经安装的应用程序
List appInfos= pm.getInstalledApplications(PackageManager.GET_UNINSTALLED_PACKAGES);// GET_UNINSTALLED_PACKAGES代表已删除，但还有安装目录的
// 创建一个类别为CATEGORY_LAUNCHER的该包名的Intent
Intent resolveIntent =new Intent(Intent.ACTION_MAIN, null);
resolveIntent.addCategory(Intent.CATEGORY_LAUNCHER);
// 通过getPackageManager()的queryIntentActivities方法遍历,得到所有能打开的app的packageName
List resolveinfoList = getActivity().getPackageManager()
.queryIntentActivities(resolveIntent, 0);
Set allowPackages=new HashSet();
for (ResolveInfo resolveInfo:resolveinfoList){
allowPackages.add(resolveInfo.activityInfo.packageName);
}
for (ApplicationInfo app:appInfos) {
if (allowPackages.contains(app.packageName)){
long installtime =0;
try {
installtime = pm.getPackageInfo(app.packageName, 0).lastUpdateTime;
}catch (PackageManager.NameNotFoundException e) {
e.printStackTrace();
}
AppsBean appsBean =new AppsBean(app.packageName, app.loadIcon(pm), app.loadLabel(pm).toString(), installtime);
Log.i("TAGt", "initData: "+installtime);
mAppList.add(appsBean);
sortData((ArrayList)mAppList);
}
}
mAdapter.notifyDataSetChanged();
}
@Override
public void setSwitchBean(SwitchBean switchBean) {
mSwitchBean = switchBean;
super.setSwitchBean(switchBean);
}
private void sortData(ArrayList mList) {
Collections.sort(mList, new Comparator() {
/**
*
* @param lhs
* @param rhs
* @return an integer < 0 if lhs is less than rhs, 0 if they are
* equal, and > 0 if lhs is greater than rhs,比较数据大小时,这里比的是时间
*/
@Override
public int compare(AppsBean lhs, AppsBean rhs) {
long date1 = lhs.getInstallTime();
long date2 = rhs.getInstallTime();
// 对时间字段进行降序
if (date1 > date2) {
return 1;
}
return -1;
}
});
}