Toast

package com.example.tost;

import android.os.Bundle;
import android.app.Activity;
import android.text.Editable;
import android.view.Menu;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;

public class MainActivity extends Activity {
	
	private Button mButton;//声明两个对象变量（按钮盒编辑文字）
	private EditText mEditText;
	private Toast toast = null;

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.main1);
		
		mButton = (Button)findViewById(R.id.Button_Send);
		mEditText = (EditText) findViewById(R.id.EidtText_wish);
		
		//设置Onclicklistener 给 Button对象绑定click对象
		mButton.setOnClickListener(new Button.OnClickListener(){
			
			

			@Override
			public void onClick(View v) {
				// TODO Auto-generated method stub
				
				//声明字符串变量并取得用户输入的EditText字符串
				Editable Str;
				Str = mEditText.getText();
				//使用charsequence 类getString（）方法从XML文件中获取String
				
				CharSequence string2 = getString(R.string.sendmywish);
				CharSequence string3 = getString(R.string.hasSend);
				
				//使用标准统一的makeText（）方式来产生Toast信息
				
				toast =Toast.makeText(MainActivity.this, string2+Str.toString()+string3, Toast.LENGTH_LONG);
				toast.show();
			}
		});
		
	}

}

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >
    
    <EditText 
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:id="@+id/EidtText_wish"
        />
    
    <Button 
        android:id="@+id/Button_Send"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/sendmywish"
        android:layout_marginLeft="50px">
        
    </Button>
        "
    

</LinearLayout>

<?xml version="1.0" encoding="utf-8"?>
<resources>

    <string name="app_name">Tost</string>
    <string name="action_settings">Settings</string>
    <string name="hello_world">Hello world!</string>
    <string name="dear">亲爱的圣诞老人:</string>
    <string name="sendmywish">送出愿望：</string>
    <string name="hasSend">已经送达圣诞老人信箱</string>

</resources>