基于nlecloud(新大陆)实现智能排队机——Android端
智能排队机导入闭包与权限申明导入闭包申明权限网络安全问题问题描述解决方案ActivityWelComeActvity效果图描述代码LoginActivity效果图描述代码MainActivity效果图描述代码HistoricalDataActivity效果图描述代码后台数据总结导入闭包与权限申明导入闭包其中包括1.新大陆闭包：用于连接新大陆云平台，通过底层硬件设备获取数据，并上传至云平台，移动端端
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智能排队机
导入闭包与权限申明
导入闭包
其中包括
1.新大陆闭包：用于连接新大陆云平台，通过底层硬件设备获取数据，并上传至云平台，移动端端通过此闭包，连接云平台，实时获取数据
2.Google推出的MaterialDesign API
3.MPAndroidChar:绘制折线图等
implementation project(path: ':nlecloud-sdk')
implementation 'com.google.android.material:material:1.1.0-alpha09'
implementation 'com.getbase:floatingactionbutton:1.10.1'
implementation 'com.google.android.material:material:1.0.0'
implementation 'com.github.PhilJay:MPAndroidChart:v3.1.0'
申明权限
因为要与获取云平台数据，所有申明网络权限
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.VIBRATE" />
网络安全问题
问题描述
Google表示，为保证用户数据和设备的安全，针对下一代 Android 系统(Android P) 的应用程序，将要求默认使用加密连接，这意味着 Android P 将禁止 App 使用所有未加密的连接，因此运行 Android P 系统的安卓设备无论是接收或者发送流量，未来都不能明码传输，需要使用下一代(Transport Layer Security)传输层安全协议，而 Android Nougat 和 Oreo 则不受影响。
解决方案
在Android Studio，res目录下创建一个xml包，再在xml包内创建一个network_security_config.xml文件（文件名自定义）
res->xml->network_security_config.xml
代码如下：
<network-security-config>
<base-config cleartextTrafficPermitted="true" />
</network-security-config>
然后在清单文件中引用
android:networkSecurityConfig="@xml/network_security_config"
Activity
WelComeActvity
效果图
描述
右上角按钮数字从5开始倒计时，采用Handler异步通信实现，到0时，自动跳转到登录界面，代码如下：
Handler handler = new Handler( ){
@Override
public void handleMessage(@NonNull Message msg) {
super.handleMessage( msg );
if (msg.what == 0 && Flag) {
int Count = CountDown();
btn_Skip.setText( "跳过 " + Count );
handler.sendEmptyMessageDelayed( 0,1000 );
}
}
};
代码
代码中Flag用于Handler倒计时未结束，点击按钮进行跳转，异步通信未结束，防止再次渲染
**
* Author:FranzLiszt
* Completion time:9-20*/
public class WelComeActivity extends AppCompatActivity {
private Button btn_Skip,GetInto;
private int TotalNumber = 5;
/*用于点击跳过或者进入应用按钮之后，界面发生跳转，但线程并未停止，时间到达，仍会重新渲染一次，
使用此标志，用来控制不执行异步介绍的信息，从此达到中断的效果*/
private boolean Flag = true;
Handler handler = new Handler( ){
@Override
public void handleMessage(@NonNull Message msg) {
super.handleMessage( msg );
if (msg.what == 0 && Flag) {
int Count = CountDown();
btn_Skip.setText( "跳过 " + Count );
handler.sendEmptyMessageDelayed( 0,1000 );
}
}
};
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate( savedInstanceState );
if (Build.VERSION.SDK_INT >= 21) {
View decorView = getWindow().getDecorView();
decorView.setSystemUiVisibility( View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN | View.SYSTEM_UI_FLAG_LAYOUT_STABLE );
getWindow().setStatusBarColor( Color.TRANSPARENT );
}
setContentView( R.layout.activity_wel_come );
InitView();
}
/*5s之后自动跳转*/
private void InitView(){
btn_Skip = findViewById( R.id.btn_Skip );
GetInto = findViewById( R.id.GetInto);
handler.sendEmptyMessageDelayed( 0,1000 );
}
private int CountDown(){
if (TotalNumber -- == 1){
ReturnActivity(LoginActivity.class);
}
return TotalNumber;
}
public void Skip(View view) {
Flag = false;
ReturnActivity(LoginActivity.class);
}
public void GetIntoApp(View view) {
Flag = false;
ReturnActivity(LoginActivity.class);
}
private void ReturnActivity(Class Activity){
startActivity( new Intent( WelComeActivity.this,Activity ) );
}
}
LoginActivity
效果图
描述
UI部分采用Google的MD组件库，此处省略，代码部分，主要获取用户输入的账户、密码传输给云平台进行匹配，如果密码正确，服务器会返回一个AccessToken（访问令牌）JSON数据，然后我们进行反序列化，使用此令牌进行后续操作
代码
获取AccessToken之后，通过SharedPreferences封装类SP进行保存(SP封装类在另一篇博文中有详细解锁，此处省略
https://editor.csdn.net/md/?articleId=120434977
public class LoginActivity extends AppCompatActivity {
private EditText mUserName,mPassWord;
private String AccessToken = "";
private SP sp;
private NetWorkBusiness business;
private Context context = null;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate( savedInstanceState );
if (Build.VERSION.SDK_INT >= 21) {
View decorView = getWindow().getDecorView();
decorView.setSystemUiVisibility( View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN | View.SYSTEM_UI_FLAG_LAYOUT_STABLE );
getWindow().setStatusBarColor( Color.TRANSPARENT );
}
setContentView( R.layout.activity_login );
InitView();
}
private void InitView(){
mUserName = findViewById( R.id.username );
mPassWord = findViewById( R.id.password );
if (context == null){
context = LoginActivity.this;
}
}
private void LoginMethod(){
String UserName = mUserName.getText().toString().trim();
String PassWord = mPassWord.getText().toString().trim();
if (TextUtils.isEmpty( UserName )){
Toast.makeText( context,"UserName cannot be empty",Toast.LENGTH_SHORT ).show();
return;
}
if (TextUtils.isEmpty( PassWord )){
Toast.makeText( context,"PassWord cannot be empty",Toast.LENGTH_SHORT ).show();
return;
}
business = new NetWorkBusiness( AccessToken, Param.URL );
business.signIn( new SignIn( UserName, PassWord ), new NCallBack<BaseResponseEntity<User>>(getApplicationContext()) {
@Override
protected void onResponse(BaseResponseEntity<User> response) {
}
@Override
public void onResponse(Call<BaseResponseEntity<User>> call, Response<BaseResponseEntity<User>> response) {
super.onResponse( call, response );
BaseResponseEntity<User> body = response.body();
if (body != null && body.getStatus() == 0){
sp = new SP( context );
AccessToken = body.getResultObj().getAccessToken();
/*将AccessToken存入sp*/
sp.PutData( context,"AccessToken",AccessToken );
ReturnActivity(MainActivity.class);
Toast.makeText( context,"Login Success",Toast.LENGTH_SHORT ).show();
}else {
Toast.makeText( context,"Login Fail",Toast.LENGTH_SHORT ).show();
}
}
@Override
public void onFailure(Call<BaseResponseEntity<User>> call, Throwable t) {
super.onFailure( call, t );
Toast.makeText( context,"Exception",Toast.LENGTH_SHORT ).show();
}
} );
}
/*标题栏返回按钮*/
public void Exit(View view){
ReturnActivity(WelComeActivity.class);
}
/*登录按钮*/
public void Login(View view){
LoginMethod();
}
private void ReturnActivity(Class Activity){
startActivity( new Intent( context,Activity ) );
}
}
MainActivity
效果图
描述
顶部两个圆形进度条会根据传入的数据，发生相对应变化
样式变化规则如下：
- 设置最多排队20个人，超过20人会实时显示，但不会联动触发样式效果
- 10人及以下外圆弧与文字为绿色
- 11-20人外圆弧与文字为紫色
- 大于20及，外圆弧与文字为红色
中间输入框为语音模块，输入的字符串，会通过云平台传入底层设备，底层设备会相对应语音播报相关内容
点击取消排队之后，所有功能置灰，不起作用，唯有排队按钮可以使用，反之，排队中，其余按钮均可使用，唯独排队按钮不可使用
代码
/**
* Author:FranzLiszt
* Function:排队叫号
* Tips:设置最多排队20个人，超过20人会实时显示，但不会联动触发样式效果
* 10人及以下外圆弧与文字为绿色
* 11-20人外圆弧与文字为紫色
* 大于20及，外圆弧与文字为红色
* 硬件没有限制，软件限制人数*/
/**
* 核心思想：
* 取号：获取一个号码，开始排队
* 叫号：当前方排队人数小于3时，系统提示请前往现场办理业务，无需进行排队，所有功能置灰*/
public class MainActivity extends AppCompatActivity {
/*圆形进度条上方提示文字
* 作用：跟随进度条外圆弧颜色的变化而变化*/
private TextView Text_CurrentPeople,Text_CurrentTime;
/*圆形进度条
* 作用：外圆弧跟随排队人数与剩余时间的变化而变化*/
private ProgressBarView CurrentPeople,CurrentTime;
/*需要输入的内容*/
private EditText InputMessage;
/*按键*/
private Button SendMessage,ReadProgress,ReadRecord,LineUp,CancelLineUp;
private RelativeLayout TipLayout;
private TextView TipText,btn_Agree,pop_TipText,pop_TipAgree;
private SP sp;
private String AccessToken = "";
private NetWorkBusiness business;
private Context context = null;
/*用来判断是否取消排队，中断线程*/
private boolean Flag = true;
/*用来装载获取服务器的排队人数*/
private int mCurrentNumber;
/*用来装载获取服务器的等候时间
* 时间 = 人数 * 5
* 基数自定义*/
private int mCurrentWaitTime;
/*用来判断是否正在排队，如果正在排队，排队按钮无法点击*/
private boolean EnableFlag = false;
private Thread thread;
private boolean DialogFlag = true;
private PopupWindow mPopupWindow,mPopupWindow_2;
private View TipView,TipView_2;
private static final int COMPLETE = 2;
private static final int START = 1;
private static final int STOP = 0;
Handler handler = new Handler( ){
@Override
public void handleMessage(@NonNull Message msg) {
super.handleMessage( msg );
switch (msg.what){
case COMPLETE:
CompleteQueuing();
break;
case START:
GetAndSet();
break;
case STOP:
clearStyle();
break;
}
}
};
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate( savedInstanceState );
if (Build.VERSION.SDK_INT >= 21) {
View decorView = getWindow().getDecorView();
decorView.setSystemUiVisibility( View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN | View.SYSTEM_UI_FLAG_LAYOUT_STABLE );
getWindow().setStatusBarColor( Color.TRANSPARENT );
}
setContentView( R.layout.activity_main );
InitView();
GetSpValue();
Listener();
GetCurrentPeople();
InitPopWidows();
}
/**
* Name:InitView
* Function:初始化控件*/
private void InitView(){
Text_CurrentPeople = findViewById( R.id.Text_CurrentPeople );
Text_CurrentTime = findViewById( R.id.Text_CurrentTime );
InputMessage = findViewById( R.id.InputMessage );
SendMessage = findViewById( R.id.SendMessage );
ReadProgress = findViewById( R.id.ReadProgress );
ReadRecord = findViewById( R.id.ReadRecord );
LineUp = findViewById( R.id.btn_LineUp );
CancelLineUp = findViewById( R.id.btn_CancelLineUp );
CurrentPeople = findViewById( R.id.CurrentPeople );
CurrentTime = findViewById( R.id.CurrentTime );
TipLayout = findViewById( R.id.TipLayout );
TipText = findViewById( R.id.TipText );
if (context == null){
context = MainActivity.this;
}
LineUp.setBackgroundResource( R.drawable.btn_notenable );
LineUp.setEnabled( false );
}
/**
* Name:GetSpValue
* Function:获取AccessToken
* 实例化NetWorkBusiness对象*/
private void GetSpValue(){
sp = new SP( context );
AccessToken = (String) sp.GetData( context,"AccessToken","" );
business = new NetWorkBusiness( AccessToken, Param.URL );
}
private void GetCurrentPeople(){
thread = new Thread( ){
@Override
public void run() {
super.run();
while (true) {
while (Flag) {
try {
Thread.sleep( 3000 );
} catch (InterruptedException e) {
e.printStackTrace();
}
Message message = new Message();
message.what = START;
handler.sendMessage( message );
}
}
}
};
thread.start();
}
private void GetAndSet(){
business.getSensors( Param.DEVICEID, Param.QUEUENUMBER, new NCallBack<BaseResponseEntity<List<SensorInfo>>>(context) {
@Override
protected void onResponse(BaseResponseEntity<List<SensorInfo>> response) {
}
@Override
public void onResponse(Call<BaseResponseEntity<List<SensorInfo>>> call, Response<BaseResponseEntity<List<SensorInfo>>> response) {
super.onResponse( call, response );
BaseResponseEntity<List<SensorInfo>> body = response.body();
if (body!=null && body.getStatus() == 0){
mCurrentNumber = Integer.parseInt( body.getResultObj().get( 0 ).getValue() );
mCurrentWaitTime = mCurrentNumber * 5;
sp.PutData( context,"CurrentNumber",mCurrentNumber );
sp.PutData( context,"CurrentWaitTime",mCurrentWaitTime );
}
}
} );
runOnUiThread( ()->{
if (mCurrentNumber >= 20){
/*人数大于20，红色*/
setRed();
DialogFlag = true;
DisplayLayout_Queuing();
}else if (mCurrentNumber < 20 && mCurrentNumber > 10 ){
/*人数10-20，紫色*/
setViolet();
DialogFlag = true;
DisplayLayout_Queuing();
}else if (mCurrentNumber <= 10 && mCurrentNumber > 3){
/*人数小于10，绿色*/
setGreen();
DialogFlag = true;
DisplayLayout_Queuing();
}else if (mCurrentNumber <=3 && mCurrentNumber > 0){
if (DialogFlag){
Flag = false;
Message message = new Message();
message.what = COMPLETE;
handler.sendMessage( message );
}
}
} );
}
private void Control(String DeviceID,String Tag,Object value){
business.control( DeviceID, Tag, value, new NCallBack<BaseResponseEntity>(getApplicationContext()) {
@Override
protected void onResponse(BaseResponseEntity response) {
}
@Override
public void onResponse(Call<BaseResponseEntity> call, Response<BaseResponseEntity> response) {
super.onResponse( call, response );
BaseResponseEntity<User> body = response.body();
if (body == null && body.getStatus() != 0){
Toast.makeText( context,"请求失败",Toast.LENGTH_SHORT ).show();
}
}
@Override
public void onFailure(Call<BaseResponseEntity> call, Throwable t) {
super.onFailure( call, t );
Toast.makeText( context,"异常",Toast.LENGTH_SHORT ).show();
}
} );
}
private void SendVoiceMessage(){
String Message = InputMessage.getText().toString().trim();
Control( Param.DEVICEID,Param.VOIVE,Message );
}
private void InitPopWidows(){
TipView = LayoutInflater.from( context ).inflate( R.layout.pop_item,null );
btn_Agree = TipView.findViewById( R.id.btn_Agree );
mPopupWindow = new PopupWindow( TipView, ViewGroup.LayoutParams.MATCH_PARENT,ViewGroup.LayoutParams.WRAP_CONTENT );
mPopupWindow.setFocusable( true ); //获取焦点
mPopupWindow.setBackgroundDrawable( new BitmapDrawable() );
mPopupWindow.setOutsideTouchable( true ); //点击外面地方，取消
mPopupWindow.setTouchable( true ); //允许点击
mPopupWindow.setAnimationStyle( R.style.PopupWindow ); //设置动画
btn_Agree.setOnClickListener( new View.OnClickListener() {
@Override
public void onClick(View v) {
//EnableFlag = true;
setGrey();
setStyleInvalid();
setButtonNotEnabled();
/*手机震动*/
Vibrator vibrator = (Vibrator) getSystemService( Service.VIBRATOR_SERVICE);
vibrator.vibrate(100);
mPopupWindow.dismiss();
}
} );
TipView_2 = LayoutInflater.from( context ).inflate( R.layout.tip_pop_item,null );
pop_TipText = TipView_2.findViewById( R.id.pop_TipsText );
pop_TipAgree = TipView_2.findViewById( R.id.pop_TipAgree );
mPopupWindow_2 = new PopupWindow( TipView_2, ViewGroup.LayoutParams.MATCH_PARENT,ViewGroup.LayoutParams.WRAP_CONTENT );
mPopupWindow_2.setFocusable( true ); //获取焦点
mPopupWindow_2.setBackgroundDrawable( new BitmapDrawable() );
mPopupWindow_2.setOutsideTouchable( true ); //点击外面地方，取消
mPopupWindow_2.setTouchable( true ); //允许点击
mPopupWindow_2.setAnimationStyle( R.style.PopupWindow ); //设置动画
pop_TipAgree.setOnClickListener( new View.OnClickListener() {
@Override
public void onClick(View v) {
mPopupWindow_2.dismiss();
}
} );
}
private void DisPlayPopWindows(){
mPopupWindow.showAtLocation( TipView, Gravity.CENTER,0,0 );
}
private void ShowPopWindows(){
pop_TipText.setText( "目前前方剩余"+mCurrentNumber+"人，需要等候"+mCurrentWaitTime+"min" );
mPopupWindow_2.showAtLocation( TipView_2,Gravity.CENTER,0,0 );
}
private void DisplayLayout_Queuing(){
TipLayout.setVisibility( View.VISIBLE );
TipText.setText( "当前正在排队中,请文明排队" );
}
private void DisplayLayout_CancelQueuing(){
TipLayout.setVisibility( View.VISIBLE );
TipText.setText( "当前号码已作废，请重新排队" );
}
private void DisplayLayout_CallNumber(){
TipLayout.setVisibility( View.VISIBLE );
TipText.setText( "排队完成，请前往现场办理业务" );
}
private void CompleteQueuing(){
/*人数小于3，给予提示*/
DisplayLayout_CallNumber();
DisPlayPopWindows();
}
private void setRed(){
Text_CurrentPeople.setTextColor( getResources().getColor( R.color.colorRed ) );
Text_CurrentTime.setTextColor( getResources().getColor( R.color.colorRed ) );
Text_CurrentPeople.setText( mCurrentNumber+getResources().getString( R.string.Tips_2 ) );
Text_CurrentTime.setText( mCurrentWaitTime+"Min" );
CurrentPeople.setProgress( 100 );
CurrentPeople.setCircleColor( getResources().getColor( R.color.colorRed ) );
CurrentPeople.setContent( "拥挤" );
CurrentTime.setProgress( 100 );
CurrentTime.setCircleColor( getResources().getColor( R.color.colorRed ) );
CurrentTime.setContent( "时间长" );
}
private void setViolet(){
Text_CurrentPeople.setTextColor( getResources().getColor( R.color.colorViolet ) );
Text_CurrentTime.setTextColor( getResources().getColor( R.color.colorViolet ) );
Text_CurrentPeople.setText( mCurrentNumber+getResources().getString( R.string.Tips_2 ) );
Text_CurrentTime.setText( mCurrentWaitTime+"Min" );
CurrentPeople.setProgress( mCurrentWaitTime );
CurrentPeople.setCircleColor( getResources().getColor( R.color.colorViolet ) );
CurrentPeople.setContent( "正常" );
CurrentTime.setProgress( mCurrentWaitTime );
CurrentTime.setCircleColor( getResources().getColor( R.color.colorViolet ) );
CurrentTime.setContent( "时间中" );
}
private void setGreen(){
Text_CurrentPeople.setTextColor( getResources().getColor( R.color.colorGreen ) );
Text_CurrentTime.setTextColor( getResources().getColor( R.color.colorGreen ) );
Text_CurrentPeople.setText( mCurrentNumber+getResources().getString( R.string.Tips_2 ) );
Text_CurrentTime.setText( mCurrentWaitTime+"Min" );
CurrentPeople.setProgress( mCurrentWaitTime );
CurrentPeople.setCircleColor( getResources().getColor( R.color.colorGreen ) );
CurrentPeople.setContent( "畅通" );
CurrentTime.setProgress( mCurrentWaitTime );
CurrentTime.setCircleColor( getResources().getColor( R.color.colorGreen ) );
CurrentTime.setContent( "时间短" );
}
private void setGrey(){
Text_CurrentPeople.setTextColor( getResources().getColor( R.color.colorGrey ) );
Text_CurrentTime.setTextColor( getResources().getColor( R.color.colorGrey ) );
Text_CurrentPeople.setText( "0"+getResources().getString( R.string.Tips_2 ) );
Text_CurrentTime.setText( "0 Min" );
CurrentPeople.setProgress( 0 );
CurrentPeople.setCircleColor( getResources().getColor( R.color.colorGrey ) );
CurrentPeople.setContent( "无" );
CurrentTime.setProgress( 0 );
CurrentTime.setCircleColor( getResources().getColor( R.color.colorGrey ) );
CurrentTime.setContent( "无" );
}
/*按钮不能点击*/
private void setButtonNotEnabled(){
SendMessage.setEnabled( false );
ReadProgress.setEnabled( false );
ReadRecord.setEnabled( false );
CancelLineUp.setEnabled( false );
InputMessage.setEnabled( false );
LineUp.setEnabled( true );
InputMessage.setText( "" );
}
/*样式灰色*/
private void setStyleInvalid(){
SendMessage.setBackgroundResource( R.drawable.btn_notenable );
ReadProgress.setBackgroundResource( R.drawable.btn_notenable );
ReadRecord.setBackgroundResource( R.drawable.btn_notenable );
CancelLineUp.setBackgroundResource( R.drawable.btn_notenable );
LineUp.setBackgroundResource( R.drawable.btn_login );
}
/*样式恢复正常*/
private void setNormalStyle(){
SendMessage.setBackgroundResource( R.drawable.btn_login );
ReadProgress.setBackgroundResource( R.drawable.btn_login );
ReadRecord.setBackgroundResource( R.drawable.btn_login );
CancelLineUp.setBackgroundResource( R.drawable.btn_login );
LineUp.setBackgroundResource( R.drawable.btn_notenable );
}
/*按钮允许点击*/
private void setButtonEnabled(){
SendMessage.setEnabled( true );
ReadProgress.setEnabled( true );
ReadRecord.setEnabled( true );
CancelLineUp.setEnabled( true );
InputMessage.setEnabled( true );
LineUp.setEnabled( false );
}
private void NormalStyle(){
DialogFlag = false;
Flag = true;
setNormalStyle();
setButtonEnabled();
Message message = new Message();
message.what = START;
handler.sendMessage( message );
}
/*排队取消状态
* 所有控件置灰*/
private void clearStyle(){
Flag = false;
DisplayLayout_CancelQueuing();
setGrey();
setButtonNotEnabled();
setStyleInvalid();
}
private void StopThread(){
Flag = false;
try {
thread.join( 1000 );
} catch (InterruptedException e) {
e.printStackTrace();
}
Message message = new Message();
message.what = STOP;
handler.sendMessage( message );
}
/*返回按钮*/
public void Exit(View view){
ReturnActivity( LoginActivity.class );
}
private void ReturnActivity(Class Activity){
startActivity( new Intent( context,Activity ) );
}
private void Listener(){
OnClick onClick = new OnClick();
SendMessage.setOnClickListener( onClick );
ReadRecord.setOnClickListener( onClick );
ReadProgress.setOnClickListener( onClick );
LineUp.setOnClickListener( onClick );
CancelLineUp.setOnClickListener( onClick );
}
class OnClick implements View.OnClickListener{
@Override
public void onClick(View v) {
switch (v.getId()){
case R.id.SendMessage:
SendVoiceMessage();
break;
case R.id.btn_LineUp:
NormalStyle();
break;
case R.id.btn_CancelLineUp:
StopThread();
break;
case R.id.ReadProgress:
ShowPopWindows();
break;
case R.id.ReadRecord:
ReturnActivity( HistoricalDataActivity.class );
break;
}
}
}
}
HistoricalDataActivity
效果图
描述
通过在子线程实时获取数据，然后通过runOnUiThread跳转到主线程，实时更新UI，具体使用此处省略，代码基本每句都有注释
代码
public class HistoricalDataActivity extends AppCompatActivity {
private LineChart LineChart;
private String[] mDate;
private LineData mLineData; // 线集合，所有折线以数组的形式存到此集合中
private LineDataSet mDataSet; // 点集合，即一条折线
private List<Entry> mEntries; // Entry为某条折线上的一个点,其List封装于LineDataSet中
private Timer mTimer; // 定时器,动态获取数据
private NetWorkBusiness mNetWorkBusiness;
private String mAccessToken;
private SP sp;
private Context context = null;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate( savedInstanceState );
if (Build.VERSION.SDK_INT >= 21) {
View decorView = getWindow().getDecorView();
decorView.setSystemUiVisibility( View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN | View.SYSTEM_UI_FLAG_LAYOUT_STABLE );
getWindow().setStatusBarColor( Color.TRANSPARENT );
}
setContentView( R.layout.activity_historical_data );
InitView();
InitLineChart();
}
private void InitView(){
LineChart = findViewById( R.id.LineChart );
if (context == null){
context = HistoricalDataActivity.this;
}
sp = new SP( context );
mAccessToken = (String) sp.GetData( context,"AccessToken","" );
mNetWorkBusiness = new NetWorkBusiness( mAccessToken, Param.URL );
}
public void Exit(View view){
startActivity( new Intent( context,MainActivity.class ) );
}
private void InitLineChart(){
LineChart.getDescription().setText("时间");//设置图表的描述文字，会显示在图表的右下角。
LineChart.getLegend().setEnabled(false);
LineChart.setTouchEnabled(true);//启用/禁用与图表的所有可能的触摸交互。
LineChart.setDragEnabled(true);//启用/禁用拖动（平移）图表。
LineChart.setScaleEnabled(true);//启用/禁用缩放图表上的两个轴。
LineChart.setDrawGridBackground(true);//如果启用，chart绘图区后面的背景矩形将绘制。
LineChart.setPinchZoom(false);//如果设置为true，没缩放功能。如果false，x轴和y轴可分别放大。
LineChart.setBackgroundColor(getResources().getColor( R.color.colorWhite ));//设置背景颜色，将覆盖整个图表视图。此外，背景颜色可以在布局文件.xml中进行设置。
LineChart.setBorderColor( getResources().getColor( R.color.colorBlue_1 ) );//设置chart边框线的颜色
LineChart.setBorderWidth( 1 );//setBorderWidth（float width）：设置chart边界线的宽度，单位dp。
LineChart.getAxisRight().setEnabled(false);// 禁止绘制右坐标轴
/*X轴数据*/
XAxis xAxis = LineChart.getXAxis();
xAxis.setPosition(XAxis.XAxisPosition.BOTTOM);
xAxis.setDrawGridLines(false);//设置为true，则绘制网格线。
xAxis.setLabelCount(5,false); // force:false,仅建议刻度线标签的数量为10
xAxis.setTextSize(5);
xAxis.setGridColor( getResources().getColor( R.color.colorViolet) );
xAxis.setValueFormatter( new ValueFormatter() {
@Override
public String getFormattedValue(float value) {
return mDate[(int) value];
}
} );
/*Y轴数据*/
YAxis yAxis = LineChart.getAxisLeft();
yAxis.setAxisMinimum(0f); // 设置y轴的坐标最小值为0(人数不小于0)
yAxis.setGranularity(1f); // 设置y轴的坐标之间的最小间隔为1(单位:人)
yAxis.setLabelCount(10, false); // force:false,仅建议刻度线标签的数量为12
yAxis.setGridColor(getResources().getColor( R.color.colorViolet));
mEntries = new ArrayList<Entry>();
mDataSet = new LineDataSet(mEntries, "排队人数");
mDataSet.setDrawCircles(true); // 禁止绘制折线圆点
mDataSet.setHighlightEnabled(true); // 禁止高亮选中点
mDataSet.setColor(getResources().getColor( R.color.colorBlue_1)); // 折线颜色
mDataSet.setValueFormatter(new ValueFormatter() {
@Override
public String getFormattedValue(float value) {
return "";
}
});
mLineData = new LineData(mDataSet);
LineChart.setData(mLineData);
LineChart.invalidate(); // 更新视图
mTimer = new Timer( );
mTimer.schedule( new TimerTask() {
@Override
public void run() {
mNetWorkBusiness.getSensorData( Param.DEVICEID, Param.QUEUENUMBER, "1", "1", null, null, "ASC", "10", "1", new NCallBack<BaseResponseEntity<SensorDataPageDTO>>(context) {
@Override
protected void onResponse(BaseResponseEntity<SensorDataPageDTO> response) {
}
@Override
public void onResponse(Call<BaseResponseEntity<SensorDataPageDTO>> call, Response<BaseResponseEntity<SensorDataPageDTO>> response) {
super.onResponse( call, response );
List<SensorDataPageDTO.DataPoint> body = response.body().getResultObj().DataPoints;
if (body == null){
return;
}else {
List<SensorDataPageDTO.VR> list = body.get(0).PointDTO;
SensorDataPageDTO.VR[] array = new SensorDataPageDTO.VR[list.size()];
list.toArray(array);
mDataSet.clear();
mDate = new String[array.length];
// = 0;
for (int idx = 0; idx < array.length; idx++) {
mDate[idx] = array[idx].RecordTime;
mDataSet.addEntry(new Entry((float) idx, Float.parseFloat(array[idx].Value)));
}
runOnUiThread( ()->{
// 通知LinData数据已发生变更，以重新计算绘制参数
LineChart.getLineData().notifyDataChanged();
// 让ChartLine知道其基础数据已更改，并执行所有必要的计算。每次动态更改数据时,若不调用此方法可能导致崩溃或意外行为。
LineChart.notifyDataSetChanged();
LineChart.invalidate();
} );
}
}
} );
}
},100,2000 );
}
@Override
protected void onDestroy() {
super.onDestroy();
mTimer.cancel();
}
}
后台数据
总结
路漫漫其修远兮，吾将上下而求索
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