For the code below, I have used try and catch method. The try and catch method will work as follows. On button click, the try method will try to search for the Google play store app on your android phone and launches it if is already installed and navigates to your application on the play store. However, in case you don't have the play store app on your android phone, catch method is executed and launches browser installed on your application and navigates to your application on the play store. getPackageName() is an inbuilt function that gets your project package name. You can add it manually as a string.
Also see for amazon store
String package="com.example.android";
The full code.
button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
try {
Uri uri = Uri.parse("market://details?id="+getPackageName()+"");
Intent goMarket = new Intent(Intent.ACTION_VIEW, uri);
startActivity(goMarket);
}catch (ActivityNotFoundException e){
Uri uri = Uri.parse("https://play.google.com/store/apps/details?id="+getPackageName()+"");
Intent goMarket = new Intent(Intent.ACTION_VIEW, uri);
startActivity(goMarket);
}
}
});