【移動(dòng)應(yīng)用開發(fā)技術(shù)】Android中怎么利用系統(tǒng)對(duì)話框?qū)崿F(xiàn)登陸注冊(cè)功能

【移動(dòng)應(yīng)用開發(fā)技術(shù)】Android中怎么利用系統(tǒng)對(duì)話框?qū)崿F(xiàn)登陸注冊(cè)功能

這期內(nèi)容當(dāng)中在下將會(huì)給大家?guī)碛嘘P(guān)Android中怎么利用系統(tǒng)對(duì)話框?qū)崿F(xiàn)登陸注冊(cè)功能，文章內(nèi)容豐富且以專業(yè)的角度為大家分析和敘述，閱讀完這篇文章希望大家可以有所收獲。界面布局xml文件<?xml

version="1.0"

encoding="utf-8"?>

<LinearLayout

xmlns:android="/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="輸入的賬號(hào)和密碼不正確"

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="賬號(hào)"

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"

androidandroid: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="密碼"

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="沒有賬號(hào)?快速注冊(cè)"

android:gravity="left"

/>

</LinearLayout>2.2后臺(tái)業(yè)務(wù)邏輯/*

*

創(chuàng)建用戶登陸的對(duì)話框

*

登陸界面包含兩個(gè)按鈕

*

1按鈕為登陸

*

2按鈕為不登陸試玩

*

*/

private

void

CreateLoginAlert()

{

AlertDialog.Builder

ad

=new

AlertDialog.Builder(this);

ad.setTitle("賬號(hào)登陸");

ad.setView(ViewUtility.GetView(this,R.layout.sub_logindialog));

adadi=

ad.create();

/*

*/

adi.setButton("登陸",

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();

//生成登陸對(duì)話框

m_Dialog=ProgressDialog.show(Main.this,

"請(qǐng)等待...",

"正在為你登陸...",true);

mRedrawHandler.sleep(100);

}

});

adi.setButton2("試

玩",

new

OnClickListener(){

@Override

public

void

onClick(DialogInterface

arg0,

int

arg1)

{

ViewUtility.NavigateActivate(Main.this,

SelectTheme.class);

}

});

adi.show();

//設(shè)置注冊(cè)點(diǎn)擊事件

TextView

register=(TextView)adi.findViewById(R.id.txt_toregister);

register.setOnClickListener(new

TextView.OnClickListener()

{

public

void

onClick(View

v){

//創(chuàng)建注冊(cè)對(duì)話框

CreateRegisterAlert();

adi.dismiss();

}

});

}

/*

*定時(shí)線程做驗(yàn)證用

*

*/

private

RefreshHandler

mRedrawHandler

=

new

RefreshHandler();

class

RefreshHandler

extends

Handler

{

@Override

public

void

handleMessage(Message

msg)

{

try{

//調(diào)用網(wǎng)絡(luò)接口，實(shí)現(xiàn)登陸指令

Boolean

flags=

UserDataServiceHelper.Login(Account,

PassWord);

if(flags)

{

//保存登陸信息

UserDataWriteHelper

uw=new

UserDataWriteHelper(Main.this);

uw.SaveUserInfoInDB("xuwenbing",

Account);

//提示登陸成功

Toast.makeText(Main.this,

"登陸成功",

Toast.LENGTH_SHORT).show();

//轉(zhuǎn)到主題頁(yè)面

ViewUtility.NavigateActivate(Main.this,

SelectTheme.class);

}else

{

//失敗

顯示錯(cuò)誤信息

Toast.makeText(Main.this,

"登陸失敗",

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);

}

};

3注冊(cè)對(duì)話框的實(shí)現(xiàn)

3.1

對(duì)話框界面布局xml文件<?xml

version="1.0"

encoding="utf-8"?>

<LinearLayout

xmlns:android="/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="輸入的賬號(hào)和密碼不正確"

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="賬號(hào)"

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="密碼"

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="昵稱"

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>3.2

后臺(tái)業(yè)務(wù)邏輯/*創(chuàng)建注冊(cè)對(duì)話框*/

private

void

CreateRegisterAlert()

{

//registerdialog

AlertDialog.Builder

ad

=new

AlertDialog.Builder(this);

ad.setTitle("注冊(cè)賬號(hào)");

ad.setView(ViewUtility.GetView(this,R.layout.sub_registerdialog));

registerdialog=

ad.create();

registerdialog.setButton("注冊(cè)",

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();

//生成注冊(cè)對(duì)話框

m_Dialog=ProgressDialog.show(Main.this,

"請(qǐng)等待...",

"正在為你注冊(cè)...",true);

mRegsiterHandler.sleep(100);

}

});

registerdialog.setButton2("試

玩",

new

OnClickListener(){

@Override

public

void

onClick(DialogInterface

arg0,

int

arg1)

{

ViewUtility.NavigateActivate(Main.this,

SelectTheme.class);

}

});

registerdialog.show();

}

/*

*定時(shí)注冊(cè)程序

*

*/

private

RegsiterHandler

mRegsiterHandler

=

new

RegsiterHandler();

class

RegsiterHandler

extends

Handler

{

@Override

public

void

handleMessage(Message

msg)

{

try{

//調(diào)用網(wǎng)絡(luò)接口，實(shí)現(xiàn)注冊(cè)指令

Boolea