本文实例讲述了android普通对话框用法。分享给大家供大家参考。具体如下:
main.xml布局文件:
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<?xml version= "1.0" encoding= "utf-8" ?> <linearlayout xmlns:android= "http://schemas.android.com/apk/res/android" android:orientation= "vertical" android:layout_width= "fill_parent" android:layout_height= "fill_parent" > <edittext android:text= "" android:id= "@+id/edittext" android:layout_width= "fill_parent" android:layout_height= "wrap_content" android:editable= "false" android:cursorvisible= "false" /> <button android:text= "显示普通对话框" android:id= "@+id/button" android:layout_width= "fill_parent" android:layout_height= "wrap_content" /> </linearlayout> |
alertdialog类:
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package com.ljq.dialog; import android.app.activity; import android.app.dialog; import android.app.alertdialog.builder; import android.content.dialoginterface; import android.content.dialoginterface.onclicklistener; import android.os.bundle; import android.view.view; import android.widget.button; import android.widget.edittext; public class alertdialog extends activity { private edittext edittext; private final static int dialog= 1 ; @override public void oncreate(bundle savedinstancestate) { super .oncreate(savedinstancestate); setcontentview(r.layout.main); edittext=(edittext)findviewbyid(r.id.edittext); button button = (button) findviewbyid(r.id.button); button.setonclicklistener( new view.onclicklistener() { public void onclick(view v) { // 显示对话框 showdialog(dialog); } }); } /** * 创建普通对话框 */ @override protected dialog oncreatedialog( int id) { dialog dialog= null ; switch (id) { case dialog: builder builder= new android.app.alertdialog.builder( this ); //设置对话框的图标 builder.seticon(r.drawable.header); //设置对话框的标题 builder.settitle( "普通对话框" ); //设置对话框的显示内容 builder.setmessage( "这是普通对话框中的内容!!" ); //添加按钮,android.content.dialoginterface.onclicklistener.onclicklistener builder.setpositivebutton( " 确 定 " , new onclicklistener(){ public void onclick(dialoginterface dialog, int which) { edittext.settext( "这是普通对话框中的内容!!" ); } }); //创建一个普通对话框 dialog=builder.create(); break ; } return dialog; } } |
运行结果:
希望本文所述对大家的android程序设计有所帮助。