WelcomeActivity.java

package org.sparkleshare.android;

import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.os.Bundle;
import android.support.v4.app.FragmentActivity;
import android.view.View;
import android.widget.Toast;
import android.view.KeyEvent;

import com.google.zxing.integration.android.IntentIntegrator;
import com.google.zxing.integration.android.IntentResult;

/**
 * Splash {@link Activity} which will be shown to user when no previously saved credentials could be found.
 * 
 * @author kai
 * 
 */
public class WelcomeActivity extends FragmentActivity {

	private Context context;
	

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		context = this;
		setContentView(R.layout.welcome_fragment);
	}
	
	/**
	 * Will be called when user clicks a button inside this {@link Activity}
	 * 
	 * @param target
	 *            Button which was clicked by user
	 */
	public void buttonClick(View target) {
		switch (target.getId()) {
		case R.id.btn_insert_linkcode:
			Intent setup = new Intent(context, SetupActivity.class);
			startActivity(setup);
			break;
		case R.id.btn_scan_qrcode:
			PackageManager pm = getPackageManager();
			if (pm.hasSystemFeature(PackageManager.FEATURE_CAMERA)) {
				IntentIntegrator integrater = new IntentIntegrator(this);
				integrater.initiateScan();
			} 
			break;
		}
	}
	
	public void onActivityResult(int requestCode, int resultCode, Intent data) {
		IntentResult scanResult = IntentIntegrator.parseActivityResult(requestCode, resultCode, data);
		if (scanResult != null && scanResult.getContents() != null) {
			String content = scanResult.getContents().toLowerCase();
			if (!content.startsWith("sshare:") || !content.contains("#")) {
				Toast.makeText(this, getString(R.string.invalid_qr_code), Toast.LENGTH_SHORT).show();
			} else {
				String url = content.split("sshare:")[1].split("#")[0];
				String linkcode = content.split("#")[1];
				Intent setup = new Intent(this, SetupActivity.class);
				setup.putExtra("url", url);
				setup.putExtra("linkcode", linkcode);
				startActivity(setup);
			}
			
		}
	}

	@Override
	public boolean onKeyDown (int keyCode, KeyEvent event)
	{
		switch(keyCode)
		{
			case KeyEvent.KEYCODE_MENU:
			Intent settings = new Intent(this, SettingsActivity.class);
			startActivity(settings);
			return true;
		}
		return false;
	}
}