Google Android - это несложно

Код: Выделить всё

package com.example.multibutton;

import android.app.Activity;
import android.os.Bundle;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;


public class MainActivity extends Activity {

	TextView screenText;
	Button butOK;
	Button butCancel;
	
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.main);
		
		screenText = (TextView) findViewById(R.id.screenText);
		butOK = (Button) findViewById(R.id.butOK);
		butCancel = (Button) findViewById(R.id.butCancel);
	}
	
	OnClickListener oclBtn = new OnClickListener() {
		
		@Override
		public void onClick(View v) {
			switch (v.getId()) {
			case R.id.butOK:
				screenText.setText(R.string.screenTextOK);
				break;
			case R.id.butCancel:
				screenText.setText(R.string.screenTextCancel);
				break;
			}
		}
	};

	butOK.setOnClickListener(oclBtn);
	butCancel.setOnClickListener(oclBtn);
	}}

	@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;
	}

}

Код: Выделить всё

protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.main);
		Button b1=(Button)findViewById(R.id.b1);
		Button b2=(Button)findViewById(R.id.b2);
		OnClickListener b11 = new OnClickListener()
		{
			public void onClick(View v)
			{
				switch (v.getId())
				{
				case R.id.b1:
				
				setContentView(R.layout.testlayout);
				break;
				case R.id.b2:
				
				setContentView(R.layout.main);
				break;
				
				}
			}
		};
		
		b1.setOnClickListener(b11);
		b2.setOnClickListener(b11);
	}

Код: Выделить всё

package ru.ru.easyonclick;

import android.app.Activity;
import android.os.Bundle;
import android.view.Menu;
import android.view.View;
import android.widget.TextView;

public class MainActivity extends Activity {
TextView textView1;

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.main);
		textView1 = (TextView) findViewById(R.id.textView1);
		}
	public void OnClickStart (View v) {
	textView1.setText("Her name is Alice");
	}
	@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;
	}
	}

Код: Выделить всё

<TableLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context=".MainActivity" >

    <TextView
        android:id="@+id/textView1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="Large Text"
        android:textAppearance="?android:attr/textAppearanceLarge" />
<TableRow
    	android:id="@+id/tableRow1"
    	android:layout_width="wrap_content"
    	android:layout_height="wrap_content" >

   		 <Button 
    		android:id="@+id/buttonOK"
    		android:layout_width="wrap_content"
    		android:layout_height="wrap_content"
    		android:layout_weight="4"
    		android:onClick="onClickStart"
    		android:text="OKEY" />
		
		<Button
	    	android:id="@+id/buttonCANCEL"
	    	android:layout_width="wrap_content"
	    	android:layout_height="wrap_content"
	    	android:layout_weight="6"
	    	android:text="CANCEL" />
 </TableRow>


</TableLayout>