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
- Activity
-
- WelComeActvity
-
- 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
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：
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>(getApplicationContext()) {
@Override
protected void onResponse(BaseResponseEntity response) {
}
@Override
public void onResponse(Call> call, Response> response) {
super.onResponse( call, response );
BaseResponseEntity 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> 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>>(context) {
@Override
protected void onResponse(BaseResponseEntity> response) {
}
@Override
public void onResponse(Call>> call, Response>> response) {
super.onResponse( call, response );
BaseResponseEntity> 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(getApplicationContext()) {
@Override
protected void onResponse(BaseResponseEntity response) {
}
@Override
public void onResponse(Call call, Response response) {
super.onResponse( call, response );
BaseResponseEntity 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 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 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();
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>(context) {
@Override
protected void onResponse(BaseResponseEntity response) {
}
@Override
public void onResponse(Call> call, Response> response) {
super.onResponse( call, response );
List body = response.body().getResultObj().DataPoints;
if (body == null){
return;
}else {
List 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