BaseActivity.java

package com.tr4android.appcompatextension.activity;

import android.content.DialogInterface;
import android.content.Intent;
import android.net.Uri;
import android.support.v7.app.AlertDialog;
import android.support.v7.app.AppCompatActivity;
import android.view.Menu;
import android.view.MenuItem;

import com.tr4android.appcompatextension.R;

public class BaseActivity extends AppCompatActivity {

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.menu_sample, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        switch (item.getItemId()) {
            case R.id.action_about:
                new AlertDialog.Builder(this)
                        .setTitle(R.string.dialog_title)
                        .setMessage(R.string.dialog_message)
                        .setNeutralButton(R.string.dialog_neutral_button, new DialogInterface.OnClickListener() {
                            @Override
                            public void onClick(DialogInterface dialog, int which) {
                                String url = "https://github.com/TR4Android/AppCompat-Extension-Library";
                                Intent i = new Intent(Intent.ACTION_VIEW);
                                i.setData(Uri.parse(url));
                                startActivity(i);
                            }
                        })
                        .setNegativeButton(R.string.dialog_negative_button, null)
                        .show();
                return true;
        }

        return super.onOptionsItemSelected(item);
    }
}