登陆界面测试
首先看看实现的效果图：
下面看看实现的代码
1.登陆界面布局
<?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="fill_parent"
android:orientation="vertical"
android:background="@drawable/container_bg"
>
<TextView
android:layout_width="fill_parent"
android:layout_height="40dp"
android:background="@drawable/container_cell_top"
android:gravity="center"
android:text="@string/login"
android:textColor="@color/black"
android:textSize="25dp" />
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical"
android:paddingLeft="20dp"
android:paddingRight="20dp"
android:paddingTop="20dp" >
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="@drawable/container_cell_middle_dropdown"
android:orientation="vertical" >
<EditText
android:id="@+id/username"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:hint="@string/account" />
<EditText
android:id="@+id/password"
android:inputType="textPassword"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:hint="@string/password" />
</LinearLayout>
</LinearLayout>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:layout_gravity="center_horizontal"
android:paddingLeft="20dp"
android:paddingRight="20dp"
android:paddingTop="20dp" >
<Button
android:id="@+id/login"
android:layout_width="200dp"
android:gravity="center"
android:layout_weight="1"
android:layout_height="wrap_content"
android:background="@drawable/btn_blue_short_click"
android:text="@string/loginbtn" />
<Button
android:id="@+id/register"
android:layout_width="200dp"
android:layout_weight="1"
android:gravity="center"
android:background="@drawable/btn_blue_short_click"
android:layout_height="wrap_content"
android:text="@string/registerbtn" />
</LinearLayout>
</LinearLayout>2.注册界面布局
<?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="fill_parent"
android:orientation="vertical"
android:background="@drawable/container_bg"
>
<TextView
android:layout_width="fill_parent"
android:layout_height="40dp"
android:gravity="center"
android:text="@string/welcomeregister"
android:background="@drawable/container_cell_top"
android:textColor="@color/black"
android:textSize="20dp" />
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical"
android:paddingLeft="20dp"
android:paddingRight="20dp"
android:paddingTop="20dp"
>
<EditText
android:id="@+id/usernameRegister"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:hint="@string/regaccount" />
<EditText
android:id="@+id/passwordRegister"
android:inputType="textPassword"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:hint="@string/password" />
<EditText
android:id="@+id/mailboxRegister"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:hint="@string/mailbox" />
<RadioGroup
android:id="@+id/sexRegister"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:checkedButton="@+id/nan"
android:orientation="horizontal" >
<RadioButton
android:textColor="@color/black"
android:id="@id/nan"
android:text="@string/male" />
<RadioButton
android:textColor="@color/black"
android:id="@+id/woman"
android:text="@string/female" />
</RadioGroup>
<Button
android:layout_marginLeft="120dp"
android:id="@+id/Register"
android:layout_width="150dp"
android:layout_height="wrap_content"
android:background="@drawable/btn_blue_short_click"
android:text="注册" />
</LinearLayout>
</LinearLayout>3.java代码实现
登陆界面 LoginintestActivity
package com.wang.activity;
import com.wang.service.UserService;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;
public class LoginintestActivity extends Activity {
EditText username;
EditText password;
Button login,register;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.logintest);
findViews();
}
private void findViews() {
username=(EditText) findViewById(R.id.username);
password=(EditText) findViewById(R.id.password);
login=(Button) findViewById(R.id.login);
register=(Button) findViewById(R.id.register);
login.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
String name=username.getText().toString();
String pass=password.getText().toString();
Log.i("TAG",name+"_"+pass);
UserService uService=new UserService(LoginintestActivity.this);
boolean flag=uService.login(name, pass);
if(flag){
Log.i("TAG","登录成功");
Toast.makeText(LoginintestActivity.this, "登录成功", Toast.LENGTH_LONG).show();
}else{
Log.i("TAG","登录失败");
Toast.makeText(LoginintestActivity.this, "登录失败", Toast.LENGTH_LONG).show();
}
}
});
register.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
Intent intent=new Intent(LoginintestActivity.this,RegisterActivity.class);
startActivity(intent);
}
});
}
}
package com.wang.activity;
import com.wang.info.User;
import com.wang.service.UserService;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.RadioButton;
import android.widget.RadioGroup;
import android.widget.Toast;
public class RegisterActivity extends Activity {
EditText username;
EditText password;
EditText mailbox;
RadioGroup sex;
Button register;
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.register);
findViews();
register.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
String name=username.getText().toString().trim();
String pass=password.getText().toString().trim();
String agestr=mailbox.getText().toString().trim();
String sexstr=((RadioButton)RegisterActivity.this.findViewById(sex.getCheckedRadioButtonId())).getText().toString();
Log.i("TAG",name+"_"+pass+"_"+agestr+"_"+sexstr);
UserService uService=new UserService(RegisterActivity.this);
User user=new User();
user.setUsername(name);
user.setPassword(pass);
user.setMailbox(agestr);
user.setSex(sexstr);
uService.register(user);
Toast.makeText(RegisterActivity.this, "注册成功", Toast.LENGTH_LONG).show();
Intent intent=new Intent(RegisterActivity.this,LoginintestActivity.class);
startActivity(intent);
}
});
}
private void findViews() {
username=(EditText) findViewById(R.id.usernameRegister);
password=(EditText) findViewById(R.id.passwordRegister);
mailbox=(EditText) findViewById(R.id.mailboxRegister);
sex=(RadioGroup) findViewById(R.id.sexRegister);
register=(Button) findViewById(R.id.Register);
}
}
数据库的实现 DatabaseHelper
package com.wang.db;
import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
public class DatabaseHelper extends SQLiteOpenHelper {
static String name = "logintest.db";
static int dbVersion = 1;
public final static String LOGIN_TABLE_NAME = "login";
public final static String LOGIN_ID = "_id";
public final static String LOGIN_USER = "username";
public final static String LOGIN_PWD = "password";
public final static String LOGIN_MAILBOX = "mailbox";
public final static String LOGIN_SEX = "sex";
public DatabaseHelper(Context context) {
super(context, name, null, dbVersion);
}
// 只在创建的时候用一次
public void onCreate(SQLiteDatabase db) {
String sql = "create table TABLE_NAME(LOGIN_ID integer primary key autoincrement" +
",LOGIN_USER varchar(20)" +
",LOGIN_PWD varchar(20)" +
",LOGIN_MAILBOX varchar(20)" +
",LOGIN_SEX varchar(2))";
db.execSQL(sql);
}
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
String sql = "drop table if exists " + LOGIN_TABLE_NAME;
db.execSQL(sql);
onCreate(db);
}
// public long insertPwd(String password){
// SQLiteDatabase db = this.getWritableDatabase();
// ContentValues cv = new ContentValues();
// cv.put(LOGIN_USER, LOGIN_USER);
// cv.put(LOGIN_PWD, password);
// return db.insert(LOGIN_TABLE_NAME, null, cv);
// }
//
// public int updatePwd(String password){
// SQLiteDatabase db = this.getWritableDatabase();
// String where = LOGIN_USER+"=?";
// String[] whereValues = {LOGIN_USER};
// ContentValues cv = new ContentValues();
// cv.put(LOGIN_PWD, password);
// return db.update(LOGIN_TABLE_NAME, cv, where, whereValues);
// }
//
// public String getPwd(){
// SQLiteDatabase db = this.getReadableDatabase();
// String where = LOGIN_USER+"=?";
// String[] whereValues = {LOGIN_USER};
// Cursor cursor = db.query(LOGIN_TABLE_NAME, null, where, whereValues, null, null, null);
// if(cursor.moveToFirst()){
// return cursor.getString(cursor.getColumnIndex(LOGIN_PWD));
// }else{
// return "";
// }
// }
}
package com.wang.info;
import java.io.Serializable;
public class User implements Serializable{
private int id;
private String username;
private String password;
private String mailbox;
private String sex;
public User() {
super();
// TODO Auto-generated constructor stub
}
public User(String username, String password, String mailbox, String sex) {
super();
this.username = username;
this.password = password;
this.mailbox = mailbox;
this.sex = sex;
}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public String getMailbox() {
return mailbox;
}
public void setMailbox(String mailbox) {
this.mailbox = mailbox;
}
public String getSex() {
return sex;
}
public void setSex(String sex) {
this.sex = sex;
}
@Override
public String toString() {
return "User [id=" + id + ", username=" + username + ", password="
+ password + ", age=" + mailbox + ", sex=" + sex + "]";
}
}
package com.wang.service;
import com.wang.db.DatabaseHelper;
import com.wang.info.User;
import android.content.Context;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
public class UserService {
private DatabaseHelper dbHelper;
public UserService(Context context){
dbHelper=new DatabaseHelper(context);
}
//登录用
public boolean login(String username,String password){
SQLiteDatabase sdb=dbHelper.getReadableDatabase();
String sql="select * from user where username=? and password=?";
Cursor cursor=sdb.rawQuery(sql, new String[]{username,password});
if(cursor.moveToFirst()==true){
cursor.close();
return true;
}
return false;
}
//注册用
public boolean register(User user){
SQLiteDatabase sdb=dbHelper.getReadableDatabase();
String sql="insert into user(username,password,age,sex) values(?,?,?,?)";
Object obj[]={user.getUsername(),user.getPassword(),user.getMailbox(),user.getSex()};
sdb.execSQL(sql, obj);
return true;
}
}
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