package com.example.mobapp_d_onefragment;

import android.support.v7.app.ActionBarActivity;
import android.support.v7.app.ActionBar;
import android.support.v4.app.Fragment;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;
import android.os.Build;

public class MainActivity extends ActionBarActivity {

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);

		if (savedInstanceState == null) {
			getSupportFragmentManager().beginTransaction()
					.add(R.id.container, new PlaceholderFragment()).commit();
		}

		EditText editText = (EditText)findViewById(R.id.editText1);
		if (null==editText)
			Toast.makeText(this, "editText1 ist null", Toast.LENGTH_SHORT).show();
	}

	@Override
	public boolean onCreateOptionsMenu(Menu menu) {

		// Inflate the menu; this adds items to the action bar if it is present.
		getMenuInflater().inflate(R.menu.main, menu);
		return true;
	}

	@Override
	public boolean onOptionsItemSelected(MenuItem item) {
		// Handle action bar item clicks here. The action bar will
		// automatically handle clicks on the Home/Up button, so long
		// as you specify a parent activity in AndroidManifest.xml.
		int id = item.getItemId();
		if (id == R.id.action_settings) {
			return true;
		}
		return super.onOptionsItemSelected(item);
	}
	
	public void clickMe1(View v)
	{
		EditText editText = (EditText)findViewById(R.id.editText1);
		editText.setText("click1");
		Toast.makeText(this, "click1", Toast.LENGTH_SHORT).show();
	}
	
	public void clickMe2(View v)
	{
		EditText editText = (EditText)(findViewById(R.id.editText1));
		editText.setText("click2");
		Toast.makeText(this, "click2", Toast.LENGTH_SHORT).show();
	}

	/**
	 * A placeholder fragment containing a simple view.
	 */
	public static class PlaceholderFragment extends Fragment {
		
		public PlaceholderFragment() {
		}

		@Override
		public View onCreateView(LayoutInflater inflater, ViewGroup container,
				Bundle savedInstanceState) {
			View rootView = inflater.inflate(R.layout.fragment_main, container,
					false);
						
			// getActivity does not work, use rootView here
			Button btn3 = (Button)(rootView.findViewById(R.id.button3));
			btn3.setOnClickListener(new OnClickListener(){
				public void onClick(View v) { clickMe3(v); }
			});
							
			return rootView;
		}
		
		// only indirectly
		public void clickMe3(View v)
		{
			EditText editText = (EditText)(getActivity().findViewById(R.id.editText1));
			editText.setText("click3");
			Toast.makeText(getActivity(), "click3", Toast.LENGTH_SHORT).show();
		}
	}

}
