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android Button 监听的几种方式

發布時間:2025/3/21 编程问答 20 豆豆
生活随笔 收集整理的這篇文章主要介紹了 android Button 监听的几种方式 小編覺得挺不錯的,現在分享給大家,幫大家做個參考.

android button控件目前主要有如下幾種監聽方式:

  • 一個button控件對應一個監聽:[java] view plaincopy
  • ??????Button?buttontest;??
  • ??????buttontest?=?(Button)?findViewById(R.id.button1);??
  • ??????buttontest.setOnClickListener(new?View.OnClickListener()?{??
  • ??????
  • ????@Override??
  • ????public?void?onClick(View?v)?{??
  • ????????//?TODO?Auto-generated?method?stub??
  • ????????Log.i("TEST",?"button?onClick");??
  • ????}??
  • });??
  • 多個button對應一個監聽1:[java] view plaincopy
  • start?=?(Button)?findViewById(R.id.button1);??
  • stop?=?(Button)?findViewById(R.id.button2);??
  • start.setOnClickListener(mylistener?);??
  • stop.setOnClickListener(mylistener?);??
  • View.OnClickListener?mylistener?=?new?View.OnClickListener()?{??
  • ??????????
  • ????????@Override??
  • ????????public?void?onClick(View?v)?{??
  • ????????????switch?(v.getId())?{??
  • ????????????case?R.id.button1:??
  • ????????????????Log.d(TAG,?"Start?to?recorder?video\n");??
  • ????????????????start_recorde();??
  • ????????????????break;??
  • ????????????case?R.id.button2:??
  • ????????????????Log.d(TAG,?"Stop?to?recorder?video\n");??
  • ????????????????stop_recorde();??
  • ????????????????break;??
  • ????????????default:??
  • ????????????????break;??
  • ????????????}?????
  • ????????}??
  • ????};??
  • 多個button對應一個監聽2:[java] view plaincopy
  • public?class?MainActivity?extends?Activity?implements?View.OnClickListener{??
  • ????//界面元素??
  • ????private?Button?start;??
  • ????private?Button?stop;??
  • ??????
  • ????@Override??
  • ????public?void?onCreate(Bundle?savedInstanceState)?{??
  • ????????super.onCreate(savedInstanceState);??
  • ????????setContentView(R.layout.activity_main);??
  • ??????????
  • ????????start?=?(Button)?findViewById(R.id.button1);??
  • ????????stop?=?(Button)?findViewById(R.id.button2);??
  • ????????start.setOnClickListener(this);??
  • ????????stop.setOnClickListener(this);??
  • ????}??
  • ??
  • ????@Override??
  • ????public?boolean?onCreateOptionsMenu(Menu?menu)?{??
  • ????????getMenuInflater().inflate(R.menu.activity_main,?menu);??
  • ????????return?true;??
  • ????}??
  • ??
  • ????@Override??
  • ????public?void?onClick(View?v)?{??
  • ????????switch?(v.getId())?{??
  • ????????case?R.id.button1:??
  • ????????????Log.d(TAG,?"Start?to?recorder?video\n");??
  • ????????????break;??
  • ????????case?R.id.button2:??
  • ????????????Log.d(TAG,?"Stop?to?recorder?video\n");??
  • ????????????break;??
  • ????????default:??
  • ????????????break;??
  • ????????}??
  • ????}??
  • ??????????
  • }??
  • xml中綁定監聽:[html] view plaincopy
  • <Button???
  • android:id="@+id/button1"???
  • android:layout_height="wrap_content"????????????
  • android:layout_width="wrap_content"???
  • android:onClick="mybuttonlistener">??
  • </Button>??
  • 對應java代碼如下:[java] view plaincopy
  • Button?btn?=?(Button)?findViewById(R.id.button1);??
  • public?void?mybuttonlistener(View?target){??
  • ????//do?something5???????
  • }??
  • 從個人角度來講,不推薦使用第四種實現方式。

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