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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>


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