我正在尝试为Android开发应用程序启动器应用程序。我刚刚开始,但是这里有一个问题:如何获取android中所有已安装应用程序的列表?
最佳答案
在活动中使用这些方法可获取已安装应用程序的列表。
private ArrayList<PackageInfoStruct> getPackages() {
ArrayList<PackageInfoStruct> apps = getInstalledApps(false);
final int max = apps.size();
for (int i=0; i < max; i++) {
apps.get(i);
}
return apps;
}
private ArrayList<PackageInfoStruct> getInstalledApps(boolean getSysPackages) {
List<PackageInfo> packs = getPackageManager().getInstalledPackages(0);
try{
app_labels = new String[packs.size()];
}catch(Exception e){
Toast.makeText(getApplicationContext(),e.getMessage(),Toast.LENGTH_SHORT).show();
}
for(int i=0;i < packs.size();i++) {
PackageInfo p = packs.get(i);
if ((!getSysPackages) && (p.versionName == null)) {
continue ;
}
PackageInfoStruct newInfo = new PackageInfoStruct();
newInfo.appname = p.applicationInfo.loadLabel(getPackageManager()).toString();
newInfo.pname = p.packageName;
newInfo.versionName = p.versionName;
newInfo.versionCode = p.versionCode;
newInfo.icon = p.applicationInfo.loadIcon(getPackageManager());
res.add(newInfo);
app_labels[i] = newInfo.appname;
}
return res;
}