How to get App's Permission for each app? how to do it programmatically on Android?

How to get App's Permission Detail for each app? how to do it programmatically?

I want to display "App's Permission Detail for each app" on TextView. But I try it but Not Ok??

Hello.java

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.ListView;
import android.content.Intent;
import android.content.Context;
import android.content.pm.*;
import android.widget.TextView;
import java.util.*;

public class HelloSakez extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);

final Intent mainIntent = new Intent(Intent.ACTION_MAIN, null);
mainIntent.addCategory(Intent.CATEGORY_LAUNCHER);
final ListView lw = (ListView) findViewById(R.id.listView1);
final List<ResolveInfo> pkglist = lw.getContext().getPackageManager().queryIntentActivities(mainIntent, 0);
final TextView tw = (TextView) findViewById(R.id.textView1);
Iterator it = pkglist.iterator();
while(it.hasNext()){
ResolveInfo rf = (ResolveInfo)it.next();
tw.append(rf.toString());
}
}
}

main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<Button android:text="Button" android:id="@+id/button1" android:layout_width="wrap_content" android:layout_height="wrap_content"></Button>
<ListView android:id="@+id/listView1" android:layout_height="wrap_content" android:layout_width="fill_parent"></ListView>
<TextView android:text="TextView" android:id="@+id/textView1" android:layout_width="wrap_content" android:layout_height="wrap_content"></TextView>
</LinearLayout>

Use the following code in your activity:

I created StringBuffer appNameAndPermissions = new StringBuffer(); to append all the apps and permisssions info.

It's working fine. I tested it already. If you have any issues, please let me know.

StringBuffer appNameAndPermissions = new StringBuffer();
PackageManager pm = getPackageManager();
List<ApplicationInfo> packages = pm.getInstalledApplications(PackageManager.GET_META_DATA);

for (ApplicationInfo applicationInfo : packages) {
    Log.d("test", "App: " + applicationInfo.name + " Package: " + applicationInfo.packageName);
try {
    PackageInfo packageInfo = pm.getPackageInfo(applicationInfo.packageName, PackageManager.GET_PERMISSIONS);
    appNameAndPermissions.append(packageInfo.packageName+"*******:\n");

    //Get Permissions
    String[] requestedPermissions = packageInfo.requestedPermissions;
    if(requestedPermissions != null) {
        for (int i = 0; i < requestedPermissions.length; i++) {
            Log.d("test", requestedPermissions[i]);
            appNameAndPermissions.append(requestedPermissions[i]+"\n");
        }
    appNameAndPermissions.append("\n");
} catch (NameNotFoundException e) {
    e.printStackTrace();
}

Use the following permission in your AndroidManifest.xml file:

<uses-permission android:name="android.permission.GET_TASKS"/>

You need to use PackageManager's GET_PERMISSIONS flag.

Check this question.