MainActivity.java

package com.codepath.example.drawablestylesdemo.activities;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Toast;

import com.example.drawablestylesdemo.R;

public class MainActivity extends Activity {

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
	}
	
	public void onLaunchDemo(View v) {
		Class<? extends Activity> selectedDemo = null;
		switch (v.getId()) {
		case R.id.btnDrawables:
			selectedDemo = BasicDrawableActivity.class;
			break;
		case R.id.btnLayerList:
			selectedDemo = LayerListActivity.class;
			break;
		case R.id.btn9Patch:
		    selectedDemo = NinePatchActivity.class;
			break;
		case R.id.btnStyles:
			selectedDemo = StylesActivity.class;
			break;
		case R.id.btnThemes:
			selectedDemo = ThemesActivity.class;
			break;
		}
		if (selectedDemo != null) {
		   startActivity(new Intent(this, selectedDemo));	
		} else {
			Toast.makeText(this, "Demo can't be found!", Toast.LENGTH_SHORT).show();
		}
	}

}