Android開發(fā)中實(shí)現(xiàn)用戶注冊和登陸的代碼實(shí)例分享

2019-11-26 14:48:04

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供稿：網(wǎng)友

在android的應(yīng)用中越來越多的包含了網(wǎng)絡(luò)互動功能，這就帶來了注冊，登陸賬號功能。本文完整的介紹對話框的方式實(shí)現(xiàn)用戶登陸功能。

登陸效果：應(yīng)用程序判斷當(dāng)前用戶還未登陸，彈出登陸對話框，用戶輸入賬號和密碼信息后，傳到服務(wù)器驗(yàn)證，驗(yàn)證成功后，現(xiàn)實(shí)Toast 成功信息，并轉(zhuǎn)到其他界面。

2015121161004202.jpg (480×800)

注冊效果：用戶如沒有賬號，則點(diǎn)擊登陸對話框的 "沒有賬號，快速注冊賬號"，彈出注冊界面,用戶輸入注冊信息，點(diǎn)擊注冊按鈕，注冊成功后，彈出toast信息"注冊成功"，完成注冊后，轉(zhuǎn)到其他功能界面。

2015121161036365.jpg (480×800)

整個(gè)功能大體上分兩塊：登陸對話框：輸入登陸信息，實(shí)現(xiàn)登陸功能，轉(zhuǎn)到注冊界面。注冊對話框：輸入注冊信息，實(shí)現(xiàn)注冊功能。

對話框界面布局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="輸入的賬號和密碼不正確"   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"   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?快速注冊"   android:gravity="left"   />   </LinearLayout>

后臺業(yè)務(wù)邏輯：

/*  * 創(chuàng)建用戶登陸的對話框  * 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("賬號登陸");    ad.setView(ViewUtility.GetView(this,R.layout.sub_logindialog));    adi= 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();        //生成登陸對話框        m_Dialog=ProgressDialog.show(Main.this, "請等待...", "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)建注冊對話框      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);    }  };

對話框界面布局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="輸入的賬號和密碼不正確"   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"   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>

后臺業(yè)務(wù)邏輯：

/*創(chuàng)建注冊對話框*/  private void CreateRegisterAlert()  {    //registerdialog    AlertDialog.Builder ad =new AlertDialog.Builder(this);    ad.setTitle("注冊賬號");    ad.setView(ViewUtility.GetView(this,R.layout.sub_registerdialog));    registerdialog= ad.create();        registerdialog.setButton("注冊", 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();        //生成注冊對話框        m_Dialog=ProgressDialog.show(Main.this, "請等待...", "正在為你注冊...",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)注冊指令       Boolean flags=  UserDataServiceHelper.Register(Account, PassWord,NiceName);         if(flags)         {        //保存注冊信息        UserDataWriteHelper uw=new UserDataWriteHelper(Main.this);        uw.SaveUserInfoInDB("xuwenbing", Account);        //提示注冊成功        Toast.makeText(Main.this, "注冊成功", Toast.LENGTH_SHORT).show();            //轉(zhuǎn)到主題頁面         ViewUtility.NavigateActivate(Main.this, SelectTheme.class);       }else       {        //失敗 顯示錯(cuò)誤信息        Toast.makeText(Main.this, "注冊失敗", 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);    }  };

兩個(gè)網(wǎng)絡(luò)接口功能：

//調(diào)用網(wǎng)絡(luò)接口，實(shí)現(xiàn)登陸指令Boolean flags=  UserDataServiceHelper.Login(Account, PassWord); //調(diào)用網(wǎng)絡(luò)接口，實(shí)現(xiàn)注冊指令Boolean flags=  UserDataServiceHelper.Register(Account, PassWord,NiceName);

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