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在android的应用中越来越多的包含了网络互动功能,这就带来了注册,登陆账号功能。本文完整的介绍对话框的方式实现用户登陆功能。
登陆效果: 应用程序判断当前用户还未登陆,弹出登陆对话框,用户输入账号和密码信息后,传到服务器验证,验证成功后,现实toast 成功信息,并转到其他界面。
注册效果:用户如没有账号,则点击登陆对话框的 "没有账号,快速注册账号", 弹出注册界面,用户输入注册信息,点击注册按钮,注册成功后,弹出toast信息"注册成功",完成注册后,转到其他功能界面。
整个功能大体上分两块:登陆对话框:输入登陆信息,实现登陆功能,转到注册界面。注册对话框:输入注册信息,实现注册功能。
对话框界面布局xml文件:
<?xml version="1.0" encoding="utf-8"?> <linearlayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="wrap_content" android:orientation="vertical"> <textview android:id="@+id/txt_loginerror" android:layout_height="wrap_content" android:layout_width="wrap_content" android:layout_marginleft="20dip" android:layout_marginright="20dip" android:textcolor="#ff0000" android:text="输入的账号和密码不正确" android:gravity="left" android:textappearance="?android:attr/textappearancemedium" android:visibility="invisible" /> <textview android:id="@+id/username" android:layout_height="wrap_content" android:layout_width="wrap_content" android:layout_marginleft="20dip" android:layout_marginright="20dip" android:text="账号" android:gravity="left" android:textappearance="?android:attr/textappearancemedium" /> <edittext android:id="@+id/txt_username" android:layout_height="wrap_content" android:layout_width="fill_parent" android:layout_marginleft="20dip" android:layout_marginright="20dip" android:autotext="false" android:capitalize="none" android:gravity="fill_horizontal" android:textappearance="?android:attr/textappearancemedium" /> <textview android:id="@+id/password" android:layout_height="wrap_content" android:layout_width="wrap_content" android:layout_marginleft="20dip" android:layout_marginright="20dip" android:textappearance="?android:attr/textappearancemedium" android:text="密码" android:gravity="left" /> <edittext android:id="@+id/txt_password" android:layout_height="wrap_content" android:layout_width="fill_parent" android:layout_marginleft="20dip" android:layout_marginright="20dip" android:autotext="false" android:capitalize="none" android:gravity="fill_horizontal" android:textappearance="?android:attr/textappearancemedium" /> <textview android:id="@+id/txt_toregister" android:layout_height="wrap_content" android:layout_width="wrap_content" android:layout_marginleft="20dip" android:layout_marginright="20dip" android:textcolor="#2200c1" android:textappearance="?android:attr/textappearancemedium" android:text="没有账号?快速注册" android:gravity="left" /> </linearlayout>
后台业务逻辑:
/* * 创建用户登陆的对话框 * 登陆界面包含两个按钮 * 1按钮为登陆 * 2按钮为不登陆试玩 * */ private void createloginalert() { alertdialog.builder ad =new alertdialog.builder(this); ad.settitle("账号登陆"); ad.setview(viewutility.getview(this,r.layout.sub_logindialog)); adi= ad.create(); /* */ adi.setbutton("登陆", new onclicklistener(){ @override public void onclick(dialoginterface arg0, int arg1) { edittext password= (edittext)adi.findviewbyid(r.id.txt_password); edittext account =(edittext)adi.findviewbyid(r.id.txt_username); password=password.gettext().tostring(); account=account.gettext().tostring(); //生成登陆对话框 m_dialog=progressdialog.show(main.this, "请等待...", "正在为你登陆...",true); mredrawhandler.sleep(100); } }); adi.setbutton2("试 玩", new onclicklistener(){ @override public void onclick(dialoginterface arg0, int arg1) { viewutility.navigateactivate(main.this, selecttheme.class); } }); adi.show(); //设置注册点击事件 textview register=(textview)adi.findviewbyid(r.id.txt_toregister); register.setonclicklistener(new textview.onclicklistener() { public void onclick(view v){ //创建注册对话框 createregisteralert(); adi.dismiss(); } }); } /* *定时线程做验证用 * */ private refreshhandler mredrawhandler = new refreshhandler(); class refreshhandler extends handler { @override public void handlemessage(message msg) { try{ //调用网络接口,实现登陆指令 boolean flags= userdataservicehelper.login(account, password); if(flags) { //保存登陆信息 userdatawritehelper uw=new userdatawritehelper(main.this); uw.saveuserinfoindb("xuwenbing", account); //提示登陆成功 toast.maketext(main.this, "登陆成功", toast.length_short).show(); //转到主题页面 viewutility.navigateactivate(main.this, selecttheme.class); }else { //失败 显示错误信息 toast.maketext(main.this, "登陆失败", toast.length_short).show(); adi.show(); adi.findviewbyid(r.id.txt_loginerror).setvisibility(view.visible); } } catch(exception e) { e.printstacktrace(); } finally{ m_dialog.dismiss(); } } public void sleep(long delaymillis) { this.removemessages(0); sendmessagedelayed(obtainmessage(0), delaymillis); } };
对话框界面布局xml文件:
<?xml version="1.0" encoding="utf-8"?> <linearlayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="wrap_content" android:orientation="vertical"> <linearlayout android:layout_width="fill_parent" android:layout_height="wrap_content" android:orientation="horizontal" android:gravity="center" > <textview android:id="@+id/txt_loginerror" android:layout_height="wrap_content" android:layout_width="wrap_content" android:layout_marginleft="20dip" android:layout_marginright="20dip" android:textcolor="#ff0000" android:text="输入的账号和密码不正确" android:gravity="left" android:textappearance="?android:attr/textappearancemedium" android:visibility="invisible" /> </linearlayout> <linearlayout android:layout_width="fill_parent" android:layout_height="wrap_content" android:orientation="horizontal" > <textview android:id="@+id/username" android:layout_height="wrap_content" android:layout_width="wrap_content" android:layout_marginleft="20dip" android:layout_marginright="20dip" android:text="账号" android:gravity="left" android:textappearance="?android:attr/textappearancemedium" /> <edittext android:id="@+id/txt_username" android:layout_height="wrap_content" android:layout_width="fill_parent" android:layout_marginleft="20dip" android:layout_marginright="20dip" android:autotext="false" android:capitalize="none" android:gravity="fill_horizontal" android:textappearance="?android:attr/textappearancemedium" /> </linearlayout> <linearlayout android:layout_width="fill_parent" android:layout_height="wrap_content" android:orientation="horizontal" > <textview android:id="@+id/password" android:layout_height="wrap_content" android:layout_width="wrap_content" android:layout_marginleft="20dip" android:layout_marginright="20dip" android:textappearance="?android:attr/textappearancemedium" android:text="密码" android:gravity="left" /> <edittext android:id="@+id/txt_password" android:layout_height="wrap_content" android:layout_width="fill_parent" android:layout_marginleft="20dip" android:layout_marginright="20dip" android:autotext="false" android:capitalize="none" android:gravity="fill_horizontal" android:textappearance="?android:attr/textappearancemedium" /> </linearlayout> <linearlayout android:layout_width="fill_parent" android:layout_height="wrap_content" android:orientation="horizontal" > <textview android:id="@+id/nicename" android:layout_height="wrap_content" android:layout_width="wrap_content" android:layout_marginleft="20dip" android:layout_marginright="20dip" android:textappearance="?android:attr/textappearancemedium" android:text="昵称" android:gravity="left" /> <edittext android:id="@+id/txt_nicename" android:layout_height="wrap_content" android:layout_width="fill_parent" android:layout_marginleft="20dip" android:layout_marginright="20dip" android:autotext="false" android:capitalize="none" android:gravity="fill_horizontal" android:textappearance="?android:attr/textappearancemedium" /> </linearlayout> </linearlayout>
后台业务逻辑:
/*创建注册对话框*/ private void createregisteralert() { //registerdialog alertdialog.builder ad =new alertdialog.builder(this); ad.settitle("注册账号"); ad.setview(viewutility.getview(this,r.layout.sub_registerdialog)); registerdialog= ad.create(); registerdialog.setbutton("注册", new onclicklistener(){ @override public void onclick(dialoginterface arg0, int arg1) { edittext password= (edittext)registerdialog.findviewbyid(r.id.txt_password); edittext account =(edittext)registerdialog.findviewbyid(r.id.txt_username); edittext nicename =(edittext)registerdialog.findviewbyid(r.id.txt_nicename); password=password.gettext().tostring(); account=account.gettext().tostring(); nicename=nicename.gettext().tostring(); //生成注册对话框 m_dialog=progressdialog.show(main.this, "请等待...", "正在为你注册...",true); mregsiterhandler.sleep(100); } }); registerdialog.setbutton2("试 玩", new onclicklistener(){ @override public void onclick(dialoginterface arg0, int arg1) { viewutility.navigateactivate(main.this, selecttheme.class); } }); registerdialog.show(); } /* *定时注册程序 * */ private regsiterhandler mregsiterhandler = new regsiterhandler(); class regsiterhandler extends handler { @override public void handlemessage(message msg) { try{ //调用网络接口,实现注册指令 boolean flags= userdataservicehelper.register(account, password,nicename); if(flags) { //保存注册信息 userdatawritehelper uw=new userdatawritehelper(main.this); uw.saveuserinfoindb("xuwenbing", account); //提示注册成功 toast.maketext(main.this, "注册成功", toast.length_short).show(); //转到主题页面 viewutility.navigateactivate(main.this, selecttheme.class); }else { //失败 显示错误信息 toast.maketext(main.this, "注册失败", toast.length_short).show(); registerdialog.show(); registerdialog.findviewbyid(r.id.txt_loginerror).setvisibility(view.visible); } } catch(exception e) { e.printstacktrace(); } finally{ m_dialog.dismiss(); } } public void sleep(long delaymillis) { this.removemessages(0); sendmessagedelayed(obtainmessage(0), delaymillis); } };
两个网络接口功能:
//调用网络接口,实现登陆指令 boolean flags= userdataservicehelper.login(account, password); //调用网络接口,实现注册指令 boolean flags= userdataservicehelper.register(account, password,nicename);
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