Rating Screen Java Code

import android.app.Activity;
import android.content.Intent;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.TextView;

public class Rating extends Activity implements View.OnClickListener {

    @Override
    public void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.rating);

        findViewById(R.id.i_love_it).setOnClickListener(this);
        findViewById(R.id.needs_work).setOnClickListener(this);
        findViewById(R.id.maybe_later).setOnClickListener(this);
    }

    @Override
    public void onClick(View v)
    {
        Intent intent;
        String app_ver = "";

        try
        {
            //get app version
            app_ver = v.getContext().getPackageManager().getPackageInfo(v.getContext().getPackageName(), 0).versionName;
        }
        catch(Exception e)
        {
            Log.v("Exception caught: ", e.getMessage());
        }

        switch (v.getId())
        {
            //Open market page
            case R.id.i_love_it:
                intent = new Intent(Intent.ACTION_VIEW, Uri.parse("market://details?id=" + getPackageName()));
                startActivity(intent);
                break;

            //Send email
            case R.id.needs_work:
                intent = new Intent(android.content.Intent.ACTION_SEND);
                intent.putExtra(Intent.EXTRA_EMAIL, new String[] {getResources().getString(R.string.my_email)});
                intent.putExtra(Intent.EXTRA_SUBJECT, getResources().getString(R.string.app_name) + " - Needs Improvement!");
                intent.putExtra(Intent.EXTRA_TEXT,
                        "What needs to be improved:\n<Your text goes here>"
                        + "\n\n-------------------------------------------\n(Please do not change anything under this line)"
                        + "\n\nDevice:\n" + getDeviceName()
                        + "\n\nAndroid Version:\n" + Build.VERSION.RELEASE
                        + "\n\n" + getResources().getString(R.string.app_name) + " Version Number:\n" + app_ver);
                intent.setType("plain/text");
                startActivity(intent);
                break;

            //Return to Application
            case R.id.maybe_later:
                break;
        }

        finish();
    }

    //Return device name - like "Samsung Galaxy Nexus - Toro"
    public String getDeviceName()
    {
        String manufacturer = Build.MANUFACTURER;
        String model = Build.MODEL + " - " + Build.DEVICE;

        if (model.startsWith(manufacturer))
            return model;
        else
            return manufacturer + " " + model;
    }
}