2019獨角獸企業重金招聘Python工程師標準>>>

主要通過PackageManager中的方法

代碼：

public class InstallApps extends ListActivity {
???

??? HashMap<String, String[]> map=new HashMap<String, String[]>();
??? List<String> packagelist=new ArrayList<String>();
??? List<String> systemApp=new ArrayList<String>();
??? protected void onCreate(android.os.Bundle savedInstanceState) {
??????? super.onCreate(savedInstanceState);
??????? PackageManager pm=getPackageManager();
????? //List<PackageInfo> mPackageinfo=? pm.getInstalledPackages(PackageManager.GET_PERMISSIONS);
???? ? Intent query=new Intent(Intent.ACTION_MAIN);
???? ? query.addCategory("android.intent.category.LAUNCHER");
???? ?? List<ResolveInfo> resolves= pm.queryIntentActivities(query, PackageManager.GET_ACTIVITIES);
??? ?? for (int i = 0; i < resolves.size(); i++) {
????? ??? ResolveInfo info= resolves.get(i);

? / /判斷是否為系統級應用
???????? if((info.activityInfo.applicationInfo.flags&ApplicationInfo.FLAG_SYSTEM)<=0){
???????????? /*安裝的應用*/
???????????? String packagename=info.loadLabel(pm).toString();????
??????????? String[] permission;
??????????? try {
??????????????? permission = pm.getPackageInfo(info.activityInfo.packageName, PackageManager.GET_PERMISSIONS).requestedPermissions;//獲取權限列表
??????????????? packagelist.add(packagename);
??????????????? map.put(packagename, permission);
????????? } catch (NameNotFoundException e) {
??????????????? // TODO Auto-generated catch block
??????????????? e.printStackTrace();
??????????? }
???????????
????????? } else{
????????????? /*系統應用*/
????????????? String packagename=info.loadLabel(pm).toString();
????????????? String[] permission;
??????????? try {
??????????????? permission = pm.getPackageInfo(info.activityInfo.packageName, PackageManager.GET_PERMISSIONS).requestedPermissions;//獲取權限列表
??????????????? systemApp.add(packagename);
??????????????? map.put(packagename, permission);
???????????? } catch (NameNotFoundException e) {
??????????????? // TODO Auto-generated catch block
??????????????? e.printStackTrace();
???????????? }
????????
?????????????
????????? }
???????
??? }
??? /*? 判斷是否屬于系統應用
????? for (int i = 0; i < mPackageinfo.size(); i++) {
?????? PackageInfo info=mPackageinfo.get(i);
?????? if((info.applicationInfo.flags&ApplicationInfo.FLAG_SYSTEM)<=0){
?????????? String packagename=info.applicationInfo.loadLabel(pm).toString();????
????????? String[] permission= info.requestedPermissions;
????????? packagelist.add(packagename);
????????? map.put(packagename, permission);
??????? } else{
??????????? String packagename=info.applicationInfo.loadLabel(pm).toString();
??????????? String[] permission= info.requestedPermissions;
???????????? systemApp.add(packagename);
??????????? map.put(packagename, permission);
???????????
??????? }
??? }*/
????? packagelist.addAll(systemApp);
???
????? getListView().setAdapter(new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, packagelist));
????? getListView().setOnItemClickListener(new OnItemClickListener() {

??????? @Override
??????? public void onItemClick(AdapterView<?> arg0, View arg1, int position, long arg3) {
??????????? // TODO Auto-generated method stub
??????????? String[]permission=map.get(packagelist.get(position));
??????????? StringBuilder sb=new StringBuilder();
??????????? for (int i = 0; i < permission.length; i++) {
????????????? sb.append("權限"+permission[i]+"\n");
??????????? }
??????????? Toast.makeText(getApplicationContext(), sb,Toast.LENGTH_LONG ).show();
???????????
??????? }
?????? });
???????
???????
??? };

}

轉載于:https://my.oschina.net/zhuzihasablog/blog/107694

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