Android Combat Simple Tutorial-the 23rd gun (based on Baas user registration and Login module implementation!) ）

Then on the last two articles, we implement the user login function based on the API provided by Bmob, and look at the code as a whole.

1. Register the page XML:

<relativelayout xmlns:android= "http://schemas.android.com/apk/res/android" xmlns:tools= "http// Schemas.android.com/tools "android:layout_width=" match_parent "android:layout_height=" match_parent "> <Tabl  Elayout android:id= "@+id/tl" android:layout_width= "match_parent" android:layout_height= "Wrap_content" > <TableRow> <textview android:id= "@+id/tv_name" Android:layo                Ut_width= "Wrap_content" android:layout_height= "Wrap_content" android:layout_weight= "1" android:text= "User name:"/> <edittext android:id= "@+id/et_username" an Droid:layout_width= "Wrap_content" android:layout_height= "Wrap_content" android:layout_weight = "5" android:text= ""/> </TableRow> <TableRow> < TextView android:id= "@+id/tv_pAssword "android:layout_width=" wrap_content "android:layout_height=" Wrap_content " android:layout_weight= "1" android:text= "Password:"/> <edittext android:id= "                @+id/et_password "android:layout_width=" wrap_content "android:layout_height=" Wrap_content " android:layout_weight= "5" android:text= "/> </TableRow> </tablelayout&    Gt <button android:id= "@+id/register" android:layout_width= "match_parent" android:layout_height= "wrap _content "android:layout_below=" @+id/tl "android:onclick=" "Submit" android:text= "register"/></relativ Elayout>

2. Registration page. Java:

Package Com.example.logintest;import Java.util.list;import Org.w3c.dom.userdatahandler;import cn.bmob.v3.Bmob; Import Cn.bmob.v3.bmobquery;import Cn.bmob.v3.listener.findlistener;import Cn.bmob.v3.listener.SaveListener; Import Android.os.bundle;import android.app.activity;import Android.content.intent;import Android.view.Menu;import Android.view.view;import Android.widget.edittext;import Android.widget.toast;public class MainActivity extends Activity {private EditText musername, Mpassword; @Overrideprotected void OnCreate (Bundle savedinstancestate) { Super.oncreate (savedinstancestate); Setcontentview (R.layout.activity_main); Bmob.initialize (This, "8f3ffb2658d8a3366a70a0b0ca0b71b2"); musername = (EditText) Findviewbyid (r.id.et_username); Mpassword = (EditText) Findviewbyid (R.id.et_password);} public void Submit (view view) {final string username = Musername.gettext (). toString (); final string password = mpassword.ge Ttext (). toString (); if (Username.equals ("") | | Password.equals ("")) {Toast.maketext (tHis, "The user name or password cannot be empty!" ", 3). Show ();} else {bmobquery<user> query = new bmobquery<user> ();//Query Class Query.addwhereequalto ("UserName", userName);// Query condition Query.findobjects (mainactivity.this, New findlistener<user> () {@Overridepublic void onsuccess (list< User> userlist) {if (userlist.size () = = 0) {//query is not available, user name can be used by users user = new user (); User.setusername (username); user.setuse Rpassword (password); User.save (Mainactivity.this, New Savelistener () {@Overridepublic void onsuccess () { Toast.maketext (Mainactivity.this, "registered successfully! Jump to the login page! ", 3). Show (); Intent Intent = new Intent (); Intent.setclass (Mainactivity.this, Login.class); Intent.putextra (" username " , username); startactivity (intent);} @Overridepublic void onfailure (int arg0, String arg1) {toast.maketext (Mainactivity.this, "Registration failed! ", 3). Show ();}}); else {toast.maketext (Mainactivity.this, "username has been registered!) ", 3). Show ();}} @Overridepublic void OnError (int arg0, String arg1) {//TODO auto-generated Method stub}}})

3. Login interface. xml:

<relativelayout xmlns:android= "http://schemas.android.com/apk/res/android" xmlns:tools= "http// Schemas.android.com/tools "android:layout_width=" match_parent "android:layout_height=" match_parent "> <Tabl Elayout android:id= "@+id/tllayout" android:layout_width= "match_parent" android:layout_height= "Wrap_co                Ntent "> <TableRow> <textview android:layout_width=" Wrap_content "             android:layout_height= "Wrap_content" android:layout_weight= "1" android:text= "User name:"/> <edittext android:id= "@+id/et_usernamelogin" android:layout_width= "Wrap_conte                                NT "android:layout_height=" Wrap_content "android:layout_weight=" 5 " Android:text= ""/> </TableRow> <TableRow> <textview Androi                D:layout_width= "Wrap_content"android:layout_height= "Wrap_content" android:layout_weight= "1" android:text= "Password:"/>                <edittext android:id= "@+id/et_passwordlogin" android:layout_width= "Wrap_content" android:layout_height= "Wrap_content" android:password= "true" android:layout_we ight= "5" android:text= "/> </TableRow> </TableLayout> <button Androi D:id= "@+id/login" android:layout_width= "match_parent" android:layout_height= "Wrap_content" Android:la yout_below= "@+id/tllayout" android:text= "Login"/></relativelayout>

4. Login interface. Java:

Package Com.example.logintest;import Java.util.list;import Cn.bmob.v3.bmob;import cn.bmob.v3.bmobquery;import Cn.bmob.v3.listener.findlistener;import Cn.bmob.v3.listener.savelistener;import Android.app.Activity;import Android.content.dialoginterface;import Android.content.intent;import Android.os.bundle;import Android.view.View; Import Android.view.view.onclicklistener;import Android.widget.button;import Android.widget.edittext;import Android.widget.toast;public class Login extends Activity {private EditText mloginname, Mloginpassword;private Button Mbuttonlogin;private String username, password; @Overrideprotected void OnCreate (Bundle savedinstancestate) { Super.oncreate (savedinstancestate); Setcontentview (R.layout.login); Bmob.initialize (This, "8f3ffb2658d8a3366a70a0b0ca0b71b2");//Initialize Bmobmloginname = (EditText) Findviewbyid (r.id.et_ Usernamelogin) Mloginpassword = (EditText) Findviewbyid (r.id.et_passwordlogin); mbuttonlogin = (Button) Findviewbyid ( R.id.login); Intent Intent = Getintent (); USErname = Intent.getstringextra ("username"); Mloginname.settext (username); Mbuttonlogin.setonclicklistener (new Onclicklistener () {@Overridepublic void OnClick (View v) {final String username = Mloginname.gettext (). toString (); final String password = Mloginpassword.gettext (). toString (); if (Username.equals ("") | | Password.equals ("")) {Toast.maketext ("") {login.this, "username or password cannot be empty! ", 3). Show ();} else {bmobquery<user> query = new bmobquery<user> ();//Query Class Query.addwhereequalto ("UserName", userName);// Query condition Query.findobjects (login.this, New findlistener<user> () {@Overridepublic void onsuccess (list<user> UserList) {if (userlist = = null) {//cannot be queried, user name is available toast.maketext (Login.this, "username is wrong! ", 3). Show ();} else {if (userlist.get (0). Getuserpassword (). Equals (password)) {Toast.maketext (login.this, "Login successful! ", 3). Show (); Intent Intent = new Intent (); Intent.setclass (Login.this, Success.class); startactivity (Intent);} else {toast.maketext (login.this, "Password is wrong! ", 3). Show ();}}} @Overridepublic void OnError (int arg0, String arg1) {//TODO auto-generated Method stub}});}});}} 

5. Login successful. xml:

<?xml version= "1.0" encoding= "Utf-8"? ><linearlayout xmlns:android= "http://schemas.android.com/apk/res/ Android "    android:layout_width=" match_parent "    android:layout_height=" match_parent "    android:o rientation= "vertical" >    <textview        android:layout_width= "match_parent"        android:layout_height= " Wrap_content "        android:text=" login success! "/>    </LinearLayout>

6. Login successful. Java:

Package Com.example.logintest;import Android.app.activity;import Android.os.bundle;public class Success extends Activity {@Overrideprotected void onCreate (Bundle savedinstancestate) {super.oncreate (savedinstancestate); Setcontentview (r.layout.success);}}

7.javabean.java:

Package Com.example.logintest;import Cn.bmob.v3.bmobobject;public Class User extends Bmobobject {private String Userpassword;public String Getuserpassword () {return userpassword;} public void SetUserPassword (String userpassword) {This.userpassword = UserPassword;} Public String GetUserName () {return userName;} public void Setusername (String userName) {this.username = UserName;} Private String UserName;}

8. Configuration file:

<?xml version= "1.0" encoding= "Utf-8"? ><manifest xmlns:android= "http://schemas.android.com/apk/res/        Android "package=" Com.example.logintest "android:versioncode=" 1 "android:versionname=" 1.0 "> <uses-sdk android:minsdkversion= "8" android:targetsdkversion= "/> <uses-permission android:name=" android.pe Rmission. INTERNET "/> <uses-permission android:name=" Android.permission.ACCESS_WIFI_STATE "/> <uses-permission an Droid:name= "Android.permission.ACCESS_NETWORK_STATE"/> <uses-permission android:name= " Android.permission.READ_PHONE_STATE "/> <uses-permission android:name=" android.permission.WRITE_EXTERNAL_ STORAGE "/> <uses-permission android:name=" Android.permission.READ_LOGS "/> <application android: Allowbackup= "true" android:icon= "@drawable/ic_launcher" android:label= "@string/app_name" Android:them E= "@style/apptheme" > <activity android:Name= "com.example.logintest.MainActivity" android:label= "@string/app_name" > <intent-filter&gt                ; <action android:name= "Android.intent.action.MAIN"/> <category android:name= "Android.intent.catego Ry. LAUNCHER "/> </intent-filter> </activity> <activity android:name=" Com.example.l Ogintest. Login "> </activity> <activity android:name=" com.example.logintest.Success "> </act Ivity> </application></manifest>

9. Documents:

10. Run:

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Copyright NOTICE: This article for Bo Master original article, without Bo Master permission not reproduced.

Android Combat Simple Tutorial-the 23rd gun (based on Baas user registration and Login module implementation!) ）