Android入门第九篇之AlertDialog
时隔一年,又要准备做Android的开发了,最近复习和整理一下Android的知识。这次要说的是AlertDialog,这种对话框会经常遇到。AlertDialog跟WIN32开发中的Dialog不一样,AlertDialog是非阻塞的,而阻塞的对话框用的是PopupWindow。
先贴出程序运行的截图:
main.xml的源码:
package com.testAlertDialog; import android.app.Activity; import android.app.AlertDialog; import android.content.Context; import android.content.DialogInterface; import android.os.Bundle; import android.view.Gravity; import android.view.LayoutInflater; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.EditText; import android.widget.PopupWindow; public class testAlertDialog extends Activity { Button btnShowDialog; Button btnShowDialog_Layout; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); //定义按钮 btnShowDialog=(Button)this.findViewById(R.id.Button01); btnShowDialog.setOnClickListener(new ClickEvent()); btnShowDialog_Layout=(Button)this.findViewById(R.id.Button02); btnShowDialog_Layout.setOnClickListener(new ClickEvent()); } //统一处理按键事件 class ClickEvent implements OnClickListener{
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