Get targetSdkVersion, minSdkVersion, versionName and versionCode at runtime

We can retrieve targetSdkVersion, minSdkVersion, versionName and versionCode from PackageInfo and ApplicationInfo.

Java code:

package com.blogspot.android_er.androidgetmodelinfo;

import android.content.pm.ApplicationInfo;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.os.Build;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.widget.TextView;
import android.widget.Toast;

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        TextView tvInfo, tvSdkInfo;
        tvInfo = (TextView)findViewById(R.id.info);
        tvSdkInfo = (TextView)findViewById(R.id.sdkinfo);

        String manufacturer = Build.MANUFACTURER;
        String model = Build.MODEL;
        String release = Build.VERSION.RELEASE;;

        tvInfo.setText(
                manufacturer + "\n"
                + model + "\n"
                + "Android: " + release + "\n");

        PackageManager packageManager = getPackageManager();
        String packageName = getPackageName();
        int targetSdkVersion, minSdkVersion;
        int versionCode;
        String versionName;
        try {
            PackageInfo packageInfo =
                    packageManager.getPackageInfo(packageName, 0);

            /*
            versionCode was deprecated in API level 28.
            Use getLongVersionCode() instead, which includes both this
            and the additional versionCodeMajor attribute. The version
            number of this package, as specified by the <manifest>
            tag's versionCode attribute.
             */
            versionCode = packageInfo.versionCode;
            versionName = packageInfo.versionName;

            ApplicationInfo applicationInfo = packageInfo.applicationInfo;

            /*
            targetSdkVersion added in API level 4
            minSdkVersion added in API level 24
             */
            targetSdkVersion = applicationInfo.targetSdkVersion;
            minSdkVersion = applicationInfo.minSdkVersion;

            tvSdkInfo.setText("targetSdkVersion = " + targetSdkVersion + "\n"
                            + "minSdkVersion = " + minSdkVersion + "\n"
                            + "versionCode: " + versionCode + "\n"
                            + "versionName: " + versionName);


        } catch (PackageManager.NameNotFoundException e) {
            e.printStackTrace();
            Toast.makeText(getApplicationContext(),
                    "NameNotFoundException: " + e.getMessage(),
                    Toast.LENGTH_LONG).show();
        }



    }
}

Layout XML

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout 
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_margin="5dp"
    tools:context=".MainActivity">

    <TextView
        android:id="@+id/addr"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:gravity="center_horizontal"
        android:text="android-er.blogspot.com"
        android:textSize="20dp"
        android:textStyle="italic"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />
    <TextView
        android:id="@+id/title"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Get device Model info"
        android:textSize="24dp"
        android:textStyle="bold"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toBottomOf="@id/addr" />
    <TextView
        android:id="@+id/info"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:textSize="24dp"
        android:textColor="#D00000"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toBottomOf="@id/title"/>
    <TextView
        android:id="@+id/sdkinfo"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:textSize="24dp"
        android:textColor="#0000D0"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toBottomOf="@id/info"/>

</android.support.constraint.ConstraintLayout>