Intent promptInstall = new Intent(Intent.ACTION_VIEW) .setDataAndType(Uri.parse("file:///path/to/your.apk"), "application/vnd.android.package-archive"); startActivity(promptInstall);
<uses-permission android:name="android.permission.INSTALL_PACKAGES" />
References :
http://stackoverflow.com/questions/4604239/install-application-programmatically-on-android