Android发送按钮点击信息,Android开发案例 点击按钮出现 简易的消息提示框

xmlns:app="http://schemas.android.com/apk/res-auto"

xmlns:tools="http://schemas.android.com/tools"

android:layout_width="match_parent"

android:layout_height="match_parent"

tools:context=".MainActivity">

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:id="@+id/list">

package com.example.administrator.myapplication;

import android.support.v7.app.AppCompatActivity;

import android.os.Bundle;

import android.view.View;

import android.widget.AdapterView;

import android.widget.ArrayAdapter;

import android.widget.ListView;

import android.widget.Toast;

public class MainActivity extends AppCompatActivity {

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

//创建数据源

final String[] data={

"选项一",

"选项二",

"选项三",

"选项四",

"选项五",

"选项六",

"选项七"

};

//把数据源保存到adpter

ArrayAdapter arrayAdapter = new ArrayAdapter(this,android.R.layout.simple_expandable_list_item_1,data);

//把数据设置到视图

ListView listView = (ListView)findViewById(R.id.list);

listView.setAdapter(arrayAdapter);

//设置弹窗

listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {

@Override

public void onItemClick(AdapterView> parent, View view, int position, long id) {

Toast.makeText(MainActivity.this,data[position],Toast.LENGTH_SHORT).show();

}

});

}

}