没图说个JB？首先上图：
友情提醒：后台数据库使用的是Bmob后端云
主要设计思路：首先选一个附近的wifi，输入签到码，进行签到。
签到之后会启动一个后台线程每隔一段时间扫描附近wifi，检测扫描范围内，是否存在之前签到时选择的wifi。
若不存在，那么就会往数据库塞一条中途离场信息。
这是工程的主要目录，包。
嗯对的，首先是AndroidManifest.xml:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.b140414.njupt.checkins">
<!-- 允许联网 -->
<uses-permission android:name="android.permission.INTERNET" />
<!-- 获取GSM（2g）、WCDMA（联通3g）等网络状态的信息 -->
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<!-- 获取wifi网络状态的信息 -->
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
<!-- 保持CPU 运转，屏幕和键盘灯有可能是关闭的,用于文件上传和下载 -->
<uses-permission android:name="android.permission.WAKE_LOCK" />
<!-- 获取sd卡写的权限，用于文件上传和下载 -->
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<!-- 允许读取手机状态 用于创建BmobInstallation -->
<uses-permission android:name="android.permission.READ_PHONE_STATE" />
<uses-permission android:name="android.permission.CHANGE_NETWORK_STATE"/>
<uses-permission android:name="android.permission.CHANGE_WIFI_STATE"/>
<application
android:allowBackup="true"
android:icon="@drawable/logo"
android:label="@string/app_name"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<activity android:name=".LoginActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name=".MainActivity" />
<activity android:name=".Register" />
<service android:name="service.WifiCheck_ch" />
<activity android:name=".ScanActivity"></activity>
</application>
</manifest>
登录界面：
activity_login.XML:
<?xml version="1.0" encoding="utf-8"?>
<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"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context="com.b140414.njupt.checkins.LoginActivity"
android:background="@drawable/background">
<Button
android:layout_width="150dp"
android:layout_height="wrap_content"
android:text="登录"
android:id="@+id/button_login"
android:textSize="20dp"
android:onClick="login_btn"
android:textColor="@color/abc_primary_text_disable_only_material_dark"
android:background="#00000000"
android:layout_above="@+id/button"
android:layout_centerHorizontal="true" />
<Button
android:layout_width="30dp"
android:layout_height="30dp"
android:id="@+id/button_re"
android:textSize="15dp"
android:background="@android:drawable/ic_menu_edit"
android:onClick="register_btn"
android:layout_alignTop="@+id/button"
android:layout_alignParentStart="true" />
<ImageView
android:layout_width="100dp"
android:layout_height="100dp"
android:id="@+id/imageView"
android:src="@drawable/logo"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true" />
<RelativeLayout
android:layout_width="200dp"
android:layout_height="100dp"
android:id="@+id/relativeLayout"
android:layout_marginTop="62dp"
android:layout_below="@+id/imageView"
android:layout_centerHorizontal="true">
<EditText
android:layout_width="120dp"
android:layout_height="30dp"
android:id="@+id/account_et"
android:textColor="@color/abc_primary_text_disable_only_material_dark"
android:textSize="15dp"
android:background="@drawable/abc_textfield_search_material"
android:phoneNumber="true"
android:layout_alignParentTop="true"
android:layout_toEndOf="@+id/imageView2" />
<EditText
android:layout_width="120dp"
android:layout_height="30dp"
android:id="@+id/password_et"
android:textColor="@color/abc_primary_text_disable_only_material_dark"
android:textSize="15dp"
android:background="@drawable/abc_textfield_search_material"
android:password="true"
android:layout_alignParentBottom="true"
android:layout_alignParentEnd="true"
android:layout_marginRight="30dp" />
<ImageView
android:layout_width="20dp"
android:layout_height="20dp"
android:id="@+id/imageView2"
android:background="@drawable/user"
android:layout_marginRight="5dp"
android:layout_alignBottom="@+id/account_et"
android:layout_alignStart="@+id/imageView4" />
<ImageView
android:layout_width="20dp"
android:layout_height="20dp"
android:id="@+id/imageView4"
android:layout_alignBottom="@+id/password_et"
android:layout_toStartOf="@+id/password_et"
android:layout_marginRight="5dp"
android:background="@drawable/lock" />
</RelativeLayout>
<Button
android:layout_width="30dp"
android:layout_height="30dp"
android:id="@+id/button"
android:background="@android:drawable/ic_delete"
android:textSize="15dp"
android:onClick="quit_login_btn"
android:textColor="@color/abc_primary_text_disable_only_material_dark"
android:layout_above="@+id/textView"
android:layout_alignParentEnd="true" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceSmall"
android:text="注册"
android:id="@+id/textView"
android:layout_alignParentBottom="true"
android:layout_alignParentStart="true"
android:textColor="@color/abc_primary_text_disable_only_material_dark" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceSmall"
android:text="退出"
android:id="@+id/textView4"
android:layout_alignParentBottom="true"
android:layout_alignParentEnd="true"
android:textColor="@color/abc_primary_text_disable_only_material_dark" />
<ImageView
android:layout_width="100dp"
android:layout_height="30dp"
android:id="@+id/imageView6"
android:layout_below="@+id/imageView"
android:layout_centerHorizontal="true"
android:src="@drawable/qiandao" />
<RadioGroup
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/RadioGroup_type"
android:orientation="horizontal"
android:layout_below="@+id/relativeLayout"
android:layout_centerHorizontal="true"
android:layout_marginTop="38dp">
<RadioButton
android:layout_width="60dp"
android:layout_height="wrap_content"
android:text="学生"
android:id="@+id/radioButton_s"
android:checked="true"
android:layout_marginTop="0dp"
android:textColor="@color/abc_primary_text_disable_only_material_dark" />
<RadioButton
android:layout_width="60dp"
android:layout_height="wrap_content"
android:text="老师"
android:id="@+id/radioButton_t"
android:checked="false"
android:textColor="@color/abc_primary_text_disable_only_material_dark"
android:layout_marginTop="0dp" />
</RadioGroup>
</RelativeLayout>
LoginActivity:
package com.b140414.njupt.checkins;
import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.EditText;
import android.widget.RadioButton;
import android.widget.RadioGroup;
import android.widget.Toast;
import bmob_table.User;
import java.util.List;
import cn.bmob.v3.Bmob;
import cn.bmob.v3.BmobQuery;
import cn.bmob.v3.listener.FindListener;
public class LoginActivity extends AppCompatActivity {
private EditText account_et;
private EditText password_et;
private RadioGroup radioGroup;
private RadioButton radioButton_s,radioButton_t;
private String userType = "s";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_login);
Bmob.initialize(this, "502aa80df90be300b2af61b48838cc90");
account_et=(EditText)findViewById(R.id.account_et);
password_et=(EditText)findViewById(R.id.password_et);
radioGroup = (RadioGroup)findViewById(R.id.RadioGroup_type);
radioButton_s = (RadioButton)findViewById(R.id.radioButton_s);
radioButton_t = (RadioButton)findViewById(R.id.radioButton_t);
radioGroup.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(RadioGroup group, int checkedId) {
if(checkedId == radioButton_t.getId()){
userType = "t";
}
else {
if (checkedId == radioButton_s.getId()) {
userType = "s";
}
else {
}
}
}
});
}
//登录按钮响应事件
public void login_btn(View view){
final String account=account_et.getText().toString();
final String password=password_et.getText().toString();
if(account.equals("")){
Toast.makeText(LoginActivity.this, "请输入您的手机号！", Toast.LENGTH_LONG).show();
}
else if(password.equals("")){
Toast.makeText(LoginActivity.this,"请输入您的密码！",Toast.LENGTH_LONG).show();
}else {
BmobQuery<User> query=new BmobQuery<>();
query.addWhereEqualTo("account",account);
query.findObjects(LoginActivity.this,new FindListener<User>() {
@Override
public void onSuccess(List<User> users) {
if(users.size()==0){
Toast.makeText(LoginActivity.this,"账户不存在！",Toast.LENGTH_LONG).show();
return;
}
for(User a:users){
if(!a.getPassword().equals(password)) {
Toast.makeText(LoginActivity.this, "账户或密码有误，请重新输入！", Toast.LENGTH_LONG).show();
return;
}
else{
if(userType.equals("t")) {
Intent intent = new Intent();
intent.setClass(LoginActivity.this, MainActivity.class);
intent.putExtra("account", account);
intent.putExtra("realName", a.getRealName());
startActivity(intent);
}
else {
if(userType.equals("s")){
Intent intent = new Intent();
intent.setClass(LoginActivity.this, ScanActivity.class);
intent.putExtra("account", account);
intent.putExtra("realName", a.getRealName());
startActivity(intent);
}
else {
Toast.makeText(LoginActivity.this, "请选择正确的用户类型", Toast.LENGTH_LONG).show();
}
}
}
}
}
@Override
public void onError(int i, String s) {
Toast.makeText(LoginActivity.this,"登录失败",Toast.LENGTH_LONG).show();
}
});
}
}
//注册按钮响应事件
public void register_btn(View view) {
Intent intent=new Intent();
intent.setClass(LoginActivity.this,Register.class);
startActivity(intent);
}
//退出按钮响应事件
public void quit_login_btn(View view) {
finish();
}
}
注册界面：
activity_register.XML：
<?xml version="1.0" encoding="utf-8"?>
<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"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context="com.b140414.njupt.checkins.Register"
android:background="@drawable/background">
<ImageView
android:layout_width="100dp"
android:layout_height="70dp"
android:id="@+id/imageView3"
android:src="@drawable/logo"
android:layout_alignParentTop="true"
android:layout_toStartOf="@+id/imageView7" />
<Button
android:layout_width="200dp"
android:layout_height="60dp"
android:text="注册"
android:id="@+id/button_queding"
android:background="@drawable/abc_ab_share_pack_mtrl_alpha"
android:textSize="20dp"
android:onClick="register_sure"
android:textColor="@color/abc_primary_text_disable_only_material_dark"
android:layout_below="@+id/relativeLayout2"
android:layout_marginTop="20dp"
android:layout_alignEnd="@+id/relativeLayout2"
android:layout_alignStart="@+id/relativeLayout2" />
<Button
android:layout_width="40dp"
android:layout_height="40dp"
android:id="@+id/button_tuichu"
android:background="@android:drawable/ic_menu_revert"
android:textSize="20dp"
android:onClick="register_quit_btn"
android:textColor="@color/abc_primary_text_disable_only_material_dark"
android:layout_above="@+id/textView_back"
android:layout_alignParentEnd="true" />
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="150dp"
android:id="@+id/relativeLayout2"
android:layout_marginTop="63dp"
android:layout_below="@+id/imageView3"
android:layout_centerHorizontal="true">
<EditText
android:layout_width="150dp"
android:layout_height="25dp"
android:id="@+id/register_account_et"
android:background="@drawable/abc_textfield_search_material"
android:phoneNumber="true"
android:layout_marginLeft="10dp"
android:layout_alignParentTop="true"
android:layout_toEndOf="@+id/textView3"
android:textColor="@color/abc_primary_text_disable_only_material_dark"
android:textSize="15dp" />
<EditText
android:layout_width="150dp"
android:layout_height="25dp"
android:id="@+id/register_password_et"
android:background="@drawable/abc_textfield_search_material"
android:password="true"
android:layout_marginLeft="0dp"
android:layout_below="@+id/register_account_et"
android:layout_alignStart="@+id/register_account_et"
android:layout_marginTop="10dp"
android:textColor="@color/abc_primary_text_disable_only_material_dark"
android:textSize="15dp" />
<EditText
android:layout_width="150dp"
android:layout_height="25dp"
android:id="@+id/password_again_et"
android:background="@drawable/abc_textfield_search_material"
android:password="true"
android:layout_marginLeft="0dp"
android:layout_below="@+id/register_password_et"
android:layout_alignStart="@+id/register_password_et"
android:layout_marginTop="10dp"
android:textColor="@color/abc_primary_text_disable_only_material_dark"
android:textSize="15dp" />
<EditText
android:layout_width="150dp"
android:layout_height="25dp"
android:id="@+id/realName_et"
android:background="@drawable/abc_textfield_search_material"
android:layout_marginLeft="0dp"
android:layout_below="@+id/password_again_et"
android:layout_alignStart="@+id/password_again_et"
android:layout_marginTop="10dp"
android:textColor="@color/abc_primary_text_disable_only_material_dark"
android:textSize="15dp" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="再输密码:"
android:id="@+id/textView3"
android:textSize="15dp"
android:textColor="@color/abc_primary_text_disable_only_material_dark"
android:layout_marginLeft="0dp"
android:layout_above="@+id/realName_et"
android:layout_alignParentStart="true" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="姓名:"
android:id="@+id/textView_x"
android:textSize="15dp"
android:textColor="@color/abc_primary_text_disable_only_material_dark"
android:layout_marginLeft="0dp"
android:layout_alignBottom="@+id/realName_et"
android:layout_alignParentStart="true" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="密码:"
android:id="@+id/textView_m"
android:textSize="15dp"
android:textColor="@color/abc_primary_text_disable_only_material_dark"
android:layout_marginLeft="0dp"
android:layout_alignBottom="@+id/register_password_et"
android:layout_alignParentStart="true" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="手机号:"
android:id="@+id/textView_z"
android:textSize="15dp"
android:textColor="@color/abc_primary_text_disable_only_material_dark"
android:layout_marginLeft="0dp"
android:layout_marginRight="5dp"
android:layout_above="@+id/register_password_et"
android:layout_alignParentStart="true" />
</RelativeLayout>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceSmall"
android:text="返回"
android:id="@+id/textView_back"
android:textColor="@color/abc_primary_text_disable_only_material_dark"
android:layout_marginLeft="6dp"
android:layout_alignParentBottom="true"
android:layout_alignStart="@+id/button_tuichu" />
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/imageView7"
android:src="@drawable/signup"
android:layout_alignBottom="@+id/imageView3"
android:layout_alignEnd="@+id/relativeLayout2" />
</RelativeLayout>
Register：
package com.b140414.njupt.checkins;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.EditText;
import android.widget.Toast;
import bmob_table.User;
import cn.bmob.v3.listener.SaveListener;
public class Register extends AppCompatActivity {
private EditText register_account_et;
private EditText register_password_et;
private EditText password_again_et;
private EditText realName_et;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_register);
register_account_et= (EditText) findViewById(R.id.register_account_et);
register_password_et=(EditText)findViewById(R.id.register_password_et);
password_again_et=(EditText)findViewById(R.id.password_again_et);
realName_et=(EditText)findViewById(R.id.realName_et);
}
public void register_sure(View view){
String register_password=register_password_et.getText().toString();
String password_again=password_again_et.getText().toString();
String register_account=register_account_et.getText().toString();
String realName=realName_et.getText().toString();
if(!register_password.equals(password_again)){
Toast.makeText(Register.this,"两次输入的密码不一致，请重新输入！",Toast.LENGTH_LONG).show();
}
else if(register_account.isEmpty()||register_account.length()!=11){
Toast.makeText(Register.this,"输入手机号不合法，请重新输入！",Toast.LENGTH_LONG).show();
}else if(realName.isEmpty()){
Toast.makeText(Register.this,"请输入您的真实姓名！",Toast.LENGTH_LONG).show();
}else{
User user=new User();
user.setAccount(register_account);
user.setPassword(password_again);
user.setRealName(realName);
user.save(Register.this,new SaveListener() {
@Override
public void onSuccess() {
Toast.makeText(Register.this,"注册成功，请返回登录！",Toast.LENGTH_LONG).show();
}
@Override
public void onFailure(int i, String s) {
Toast.makeText(Register.this,"注册失败，请重试！",Toast.LENGTH_LONG).show();
}
});
}
}
public void register_quit_btn(View view){
finish();
}
}
学生界面：
activity_scan.XML：
<?xml version="1.0" encoding="utf-8"?>
<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"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context="com.b140414.njupt.checkins.ScanActivity"
android:background="@drawable/background">
<ListView
android:layout_width="wrap_content"
android:layout_height="120dp"
android:id="@+id/listView"
android:layout_alignParentTop="true"
android:layout_alignParentStart="true" />
<Button
android:layout_width="200dp"
android:layout_height="wrap_content"
android:text="刷新"
android:id="@+id/button3"
android:onClick="netScan"
android:textColor="@color/abc_primary_text_disable_only_material_dark"
android:background="@drawable/circle"
android:layout_below="@+id/listView"
android:layout_centerHorizontal="true" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceMedium"
android:text="请选择一个wifi"
android:id="@+id/textView_choice"
android:textColor="@color/abc_primary_text_disable_only_material_dark"
android:layout_below="@+id/Wifi_name"
android:layout_centerHorizontal="true" />
<Button
android:layout_width="100dp"
android:layout_height="40dp"
android:text="签到"
android:id="@+id/Scan_check"
android:onClick="Scan_Dao"
android:textColor="@color/abc_primary_text_disable_only_material_dark"
android:background="@drawable/circle"
android:layout_alignTop="@+id/button_scaninfo"
android:layout_toStartOf="@+id/Wifi_name" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceMedium"
android:id="@+id/Wifi_name"
android:layout_below="@+id/button3"
android:layout_centerHorizontal="true"
android:layout_marginTop="100dp"
android:textColor="@color/abc_primary_text_disable_only_material_dark" />
<Button
android:layout_width="100dp"
android:layout_height="40dp"
android:text="签退并退出"
android:id="@+id/button_scanquit"
android:onClick="Scanquit"
android:textColor="@color/abc_primary_text_disable_only_material_dark"
android:background="@drawable/circle"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true" />
<Button
android:layout_width="100dp"
android:layout_height="40dp"
android:text="本人记录"
android:id="@+id/button_scaninfo"
android:onClick="Info_ScanDao"
android:textColor="@color/abc_primary_text_disable_only_material_dark"
android:background="@drawable/circle"
android:layout_marginTop="27dp"
android:layout_below="@+id/textView_choice"
android:layout_alignStart="@+id/Wifi_name" />
<EditText
android:layout_width="100dp"
android:layout_height="wrap_content"
android:id="@+id/editText_s_key"
android:background="@drawable/abc_textfield_search_material"
android:textColor="@color/abc_primary_text_disable_only_material_dark"
android:layout_below="@+id/textView7"
android:layout_centerHorizontal="true" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceSmall"
android:text="签到口令"
android:id="@+id/textView7"
android:textSize="20dp"
android:textColor="@color/abc_primary_text_disable_only_material_dark"
android:layout_below="@+id/button3"
android:layout_centerHorizontal="true"
android:layout_marginTop="30dp" />
</RelativeLayout>
ScanActivity：
package com.b140414.njupt.checkins;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.EditText;
import android.widget.Toast;
import bmob_table.User;
import cn.bmob.v3.listener.SaveListener;
public class Register extends AppCompatActivity {
private EditText register_account_et;
private EditText register_password_et;
private EditText password_again_et;
private EditText realName_et;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_register);
register_account_et= (EditText) findViewById(R.id.register_account_et);
register_password_et=(EditText)findViewById(R.id.register_password_et);
password_again_et=(EditText)findViewById(R.id.password_again_et);
realName_et=(EditText)findViewById(R.id.realName_et);
}
public void register_sure(View view){
String register_password=register_password_et.getText().toString();
String password_again=password_again_et.getText().toString();
String register_account=register_account_et.getText().toString();
String realName=realName_et.getText().toString();
if(!register_password.equals(password_again)){
Toast.makeText(Register.this,"两次输入的密码不一致，请重新输入！",Toast.LENGTH_LONG).show();
}
else if(register_account.isEmpty()||register_account.length()!=11){
Toast.makeText(Register.this,"输入手机号不合法，请重新输入！",Toast.LENGTH_LONG).show();
}else if(realName.isEmpty()){
Toast.makeText(Register.this,"请输入您的真实姓名！",Toast.LENGTH_LONG).show();
}else{
User user=new User();
user.setAccount(register_account);
user.setPassword(password_again);
user.setRealName(realName);
user.save(Register.this,new SaveListener() {
@Override
public void onSuccess() {
Toast.makeText(Register.this,"注册成功，请返回登录！",Toast.LENGTH_LONG).show();
}
@Override
public void onFailure(int i, String s) {
Toast.makeText(Register.this,"注册失败，请重试！",Toast.LENGTH_LONG).show();
}
});
}
}
public void register_quit_btn(View view){
finish();
}
}
教师界面：
activity_main.XML:
<?xml version="1.0" encoding="utf-8"?>
<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"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context="com.b140414.njupt.checkins.MainActivity"
android:background="@drawable/background">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="欢迎使用"
android:id="@+id/textView_title"
android:layout_alignParentTop="true"
android:layout_alignParentStart="true"
android:textSize="20dp"
android:textColor="@color/abc_primary_text_disable_only_material_dark" />
<Button
android:layout_width="150dp"
android:layout_height="40dp"
android:text="退出"
android:id="@+id/button_tui"
android:background="@drawable/circle"
android:textSize="15dp"
android:onClick="Quit"
android:textColor="@color/abc_primary_text_disable_only_material_dark"
android:layout_marginBottom="47dp"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/hello"
android:textSize="15dp"
android:textColor="@color/abc_primary_text_disable_only_material_dark"
android:layout_marginTop="20dp"
android:layout_marginLeft="40dp"
android:layout_below="@+id/textView_title"
android:layout_alignParentStart="true" />
<RelativeLayout
android:layout_width="200dp"
android:layout_height="100dp"
android:id="@+id/relativeLayout3"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
android:layout_marginBottom="135dp">
<Button
android:layout_width="100dp"
android:layout_height="30dp"
android:text="离场信息"
android:id="@+id/button_li"
android:background="@drawable/circle"
android:textSize="15dp"
android:onClick="LiChang"
android:textColor="@color/abc_primary_text_disable_only_material_dark"
android:layout_alignParentBottom="true"
android:layout_alignParentEnd="true" />
<Button
android:layout_width="100dp"
android:layout_height="30dp"
android:text="点名"
android:id="@+id/button_call"
android:background="@drawable/circle"
android:textSize="15dp"
android:onClick="call"
android:textColor="@color/abc_primary_text_disable_only_material_dark"
android:layout_alignParentBottom="true"
android:layout_alignParentStart="true" />
<EditText
android:layout_width="100dp"
android:layout_height="wrap_content"
android:id="@+id/editText_key"
android:background="@drawable/abc_textfield_search_material"
android:textColor="@color/abc_primary_text_disable_only_material_dark"
android:layout_below="@+id/textView6"
android:layout_centerHorizontal="true"
android:layout_marginTop="10dp" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceSmall"
android:text="签到口令"
android:id="@+id/textView6"
android:textSize="20dp"
android:textColor="@color/abc_primary_text_disable_only_material_dark"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true" />
</RelativeLayout>
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/imageView5"
android:src="@drawable/qiandao"
android:layout_marginLeft="-20dp"
android:layout_above="@+id/hello"
android:layout_toEndOf="@+id/textView_title" />
<ListView
android:layout_width="wrap_content"
android:layout_height="120dp"
android:id="@+id/listView2"
android:layout_below="@+id/hello" />
<Button
android:layout_width="wrap_content"
android:layout_height="30dp"
android:text="刷新"
android:id="@+id/button2"
android:onClick="netScan_t"
android:textColor="@color/abc_primary_text_disable_only_material_dark"
android:background="@drawable/circle"
android:layout_below="@+id/listView2"
android:layout_alignParentStart="true"
android:layout_marginTop="20dp" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceMedium"
android:text="请选择一个wifi"
android:id="@+id/textView_BSSID"
android:textColor="@color/abc_primary_text_disable_only_material_dark"
android:layout_alignBottom="@+id/button2"
android:layout_alignEnd="@+id/listView2" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceMedium"
android:id="@+id/textView_SSID"
android:textColor="@color/abc_primary_text_disable_only_material_dark"
android:layout_above="@+id/textView_BSSID"
android:layout_toEndOf="@+id/relativeLayout3"
android:layout_marginStart="11dp" />
</RelativeLayout>
MainActivity:
package com.b140414.njupt.checkins;
import android.app.AlertDialog;
import android.content.Context;
import android.content.Intent;
import android.net.wifi.ScanResult;
import android.net.wifi.WifiInfo;
import android.net.wifi.WifiManager;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.EditText;
import android.widget.ListView;
import android.widget.SimpleAdapter;
import android.widget.TextView;
import android.widget.Toast;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import bmob_table.Leave_table;
import bmob_table.ScanCheck;
import service.WifiCheck_ch;
import cn.bmob.v3.BmobQuery;
import cn.bmob.v3.listener.FindListener;
public class MainActivity extends AppCompatActivity {
private TextView hello;
public static String BSSID;
public String realName ;
public String account ;
private List<Leave_table> leave_half = new ArrayList<Leave_table>();
private Intent bindIntent;
private WifiManager wifiManager;
private ListView listView;
private TextView textview_choice;
private TextView textview_wifiname;
private String Key;
private EditText editText_key;
TextView text1;
TextView text2;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
hello = (TextView) findViewById(R.id.hello);
Intent intent = getIntent();
Bundle bundle = intent.getExtras();
realName = bundle.getString("realName");
account = bundle.getString("account");
hello.setText("你好，" + realName);
//BindService传入账号与姓名信息
bindIntent = new Intent(MainActivity.this,WifiCheck_ch.class);
bindIntent.putExtra("account",account);
bindIntent.putExtra("name",realName);
listView = (ListView)findViewById(R.id.listView2);
textview_choice = (TextView)findViewById(R.id.textView_BSSID);
textview_wifiname = (TextView)findViewById(R.id.textView_SSID);
editText_key = (EditText)findViewById(R.id.editText_key);
listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> l, View v, int position,long id) {
text1=(TextView)v.findViewById(R.id.BSSID);
text2=(TextView)v.findViewById(R.id.SSID);
BSSID = text1.getText().toString();
textview_choice.setText(BSSID);
textview_wifiname.setText(text2.getText().toString());
}
});
wifiManager = (WifiManager)getSystemService(Context.WIFI_SERVICE);
}
//获取MAC
public String getLocalMacAddress() {
WifiManager wifi = (WifiManager) getSystemService(Context.WIFI_SERVICE);
WifiInfo info = wifi.getConnectionInfo();
return info.getMacAddress();
}
//获取链接的wifi的MAC地址
public String getLinkMacAddress() {
WifiManager wifi = (WifiManager) getSystemService(Context.WIFI_SERVICE);
WifiInfo info = wifi.getConnectionInfo();
return info.getBSSID();
}
//点名按钮事件
public void call(View view){
BmobQuery<ScanCheck> query1 = new BmobQuery<>();
BmobQuery<ScanCheck> query2 = new BmobQuery<>();
BmobQuery<ScanCheck> query3 = new BmobQuery<>();
Key = editText_key.getText().toString();
//获取当前时间
Date todaydate=new Date();
SimpleDateFormat format=new SimpleDateFormat("yyyy-MM-dd");
final String s = format.format(todaydate);
//当前时间与check_table表中的签到时间进行匹配
//query1.addWhereEqualTo("DaoTime", s);
query2.addWhereEqualTo("BSSID", BSSID);
query3.addWhereEqualTo("Key",Key);
List<BmobQuery<ScanCheck>> andQuerys = new ArrayList<BmobQuery<ScanCheck>>();
andQuerys.add(query1);
andQuerys.add(query2);
andQuerys.add(query3);
BmobQuery<ScanCheck> query_and = new BmobQuery<>();
query_and.and(andQuerys);
query_and.findObjects(MainActivity.this, new FindListener<ScanCheck>() {
@Override
public void onSuccess(List<ScanCheck> qianDao) {
String str = "";
for (ScanCheck a : qianDao) {
str += a.getRealName() + "\n\n";
}
String str1 = "查询成功：共" + qianDao.size() + "个人签到。";
AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this);
builder.setTitle(s +"\n"+ Key + "的签到人员详情");
builder.setMessage(str + str1);
builder.create().show();
}
@Override
public void onError(int i, String s) {
Toast.makeText(MainActivity.this, "查询失败！" + s, Toast.LENGTH_LONG);
}
});
}
//查看离场信息
public void LiChang(View view) {
BmobQuery<Leave_table> query2 = new BmobQuery<>();
BmobQuery<Leave_table> query1 = new BmobQuery<>();
//获取当前时间
Date todaydate = new Date();
SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd");
String s = format.format(todaydate);
//当前时间与leave_table表中的leavetype+时间 && BSSID 进行匹配
query2.addWhereEqualTo("LeaveType", "中途离场"+s);
query1.addWhereEqualTo("BSSID", BSSID);
List<BmobQuery<Leave_table>> andQuerys = new ArrayList<BmobQuery<Leave_table>>();
andQuerys.add(query1);
andQuerys.add(query2);
BmobQuery<Leave_table> query_and = new BmobQuery<>();
query_and.and(andQuerys);
query_and.findObjects(MainActivity.this, new FindListener<Leave_table>() {
@Override
public void onSuccess(List<Leave_table> leave) {
String str = "";
for (Leave_table sjk : leave) {
Boolean hasName = false;
for(Leave_table bd : leave_half){
if(sjk.getRealName().equals(bd.getRealName())) {
hasName = true;
break;
}
}
if(!hasName){
leave_half.add(sjk);
}
}
for (Leave_table a : leave_half) {
str += a.getRealName() + "\n\n";
}
String str1 = "查询成功：共" + leave_half.size() + "个人中途离场。";
AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this);
Date todaydate = new Date();
SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd");
String s = format.format(todaydate);
builder.setTitle(s + "的中途离场人员详情");
builder.setMessage(str + str1);
builder.create().show();
}
@Override
public void onError(int i, String s) {
Toast.makeText(MainActivity.this, "查询失败！" + s, Toast.LENGTH_LONG);
}
});
}
public void Quit(View view) {
finish();
}
public void netScan_t(View v){
List<Map<String, Object>> list;
//启动扫描
wifiManager.startScan();
//获取扫描结果
list = getListForSimpleAdapter();
SimpleAdapter adapter = new SimpleAdapter(this, list,
R.layout.wifiinfo,
new String[] { "SSID", "BSSID" },
new int[] { R.id.SSID,R.id.BSSID });
listView.setAdapter(adapter);
}
private List<Map<String, Object>> getListForSimpleAdapter() {
List<ScanResult> mData= wifiManager.getScanResults();
List<Map<String,Object>> list=new ArrayList<Map<String,Object>>();
for (ScanResult a : mData) {
Map<String, Object> map = new HashMap<String, Object>();
map = new HashMap<String, Object>();
map.put("SSID", a.SSID);
map.put("BSSID", a.BSSID);
list.add(map);
}
return list;
}
}
至于界面的图片啊啥的，可以去git上下载我的整个工程来获取：https://github.com/ZzzSimon/Checkins
未完待续……