怎么用Android开发一个学生管理系统
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本篇内容介绍了“怎么用Android开发一个学生管理系统”的有关知识，在实际案例的操作过程中，不少人都会遇到这样的困境，接下来就让小编带领大家学习一下如何处理这些情况吧！希望大家仔细阅读，能够学有所成！
效果演示
随手做的一个小玩意，还有很多功能没有完善，倘有疏漏，万望海涵。
实现功能总览
实现了登录、注册、忘记密码、成绩查询、考勤情况、课表查看、提交作业、课程打卡等。
代码
登录与忘记密码界面
登录与忘记密码界面采用的是TabLayout+ViewPager+PagerAdapter实现的
一、添加布局文件
View View_HomePager = LayoutInflater.from( Student.this ).inflate( R.layout.homeppage_item,null,false ); View View_Data = LayoutInflater.from( Student.this ).inflate( R.layout.data_item,null,false ); View View_Course = LayoutInflater.from( Student.this ).inflate( R.layout.course_item,null,false ); View View_My = LayoutInflater.from( Student.this ).inflate( R.layout.my_item,null,false );private List<View> Views = new ArrayList<>( ); Views.add( View_HomePager ); Views.add( View_Data ); Views.add( View_Course ); Views.add( View_My );二、添加标题文字
private List<String> Titles = new ArrayList<>( );Titles.add( "首页" );Titles.add( "数据" );Titles.add( "课程" );Titles.add( "我的" );三、绑定适配器
public class ViewPagerAdapter extends PagerAdapter { private List<View> Views; private List<String> Titles; public ViewPagerAdapter(List<View> Views,List<String> Titles){ this.Views = Views; this.Titles = Titles; } @Override public int getCount() { return Views.size(); } @Override public boolean isViewFromObject(@NonNull View view, @NonNull Object object) { return view == object; } @NonNull @Override public Object instantiateItem(@NonNull ViewGroup container, int position) { container.addView( Views.get( position ) ); return Views.get( position ); } @Override public void destroyItem(@NonNull ViewGroup container, int position, @NonNull Object object) { container.removeView( Views.get( position ) ); } @Nullable @Override public CharSequence getPageTitle(int position) { return Titles.get( position ); }} ViewPagerAdapter adapter = new ViewPagerAdapter( Views,Titles ); for (String title : Titles){ Title.addTab( Title.newTab().setText( title ) ); } Title.setupWithViewPager( viewPager ); viewPager.setAdapter( adapter );注册界面
一、创建两个Drawable文件
其一
<?xml version="1.0" encoding="utf-8"?><shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="oval"><solid android:color="#63B8FF"/> <size android:width="20dp" android:height="20dp"/></shape>其二
<?xml version="1.0" encoding="utf-8"?><shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="oval"> <solid android:color="#ffffff"/> <size android:height="20dp" android:width="20dp"/> <stroke android:width="1dp" android:color="#EAEAEA"/></shape>二、将其添加数组内
private final int[] Identity = {R.drawable.press_oval_textview,R.drawable.notpress_oval_textview};三、动态变化背景
private void SelectStudent(){ mIdentity_Student.setBackgroundResource( Identity[0] ); mIdentity_Teacher.setBackgroundResource( Identity[1] ); } private void SelectTeacher(){ mIdentity_Student.setBackgroundResource( Identity[1] ); mIdentity_Teacher.setBackgroundResource( Identity[0] ); }考勤界面
主要是通过绘制一个圆，圆环、内圆、文字分别使用不同的背景颜色，并将修改背景颜色的接口暴露出来。
一、CircleProgressBar代码如下
public class CircleProgressBar extends View { // 画实心圆的画笔 private Paint mCirclePaint; // 画圆环的画笔 private Paint mRingPaint; // 画圆环的画笔背景色 private Paint mRingPaintBg; // 画字体的画笔 private Paint mTextPaint; // 圆形颜色 private int mCircleColor; // 圆环颜色 private int mRingColor; // 圆环背景颜色 private int mRingBgColor; // 半径 private float mRadius; // 圆环半径 private float mRingRadius; // 圆环宽度 private float mStrokeWidth; // 圆心x坐标 private int mXCenter; // 圆心y坐标 private int mYCenter; // 字的长度 private float mTxtWidth; // 字的高度 private float mTxtHeight; // 总进度 private int mTotalProgress = 100; // 当前进度 private double mProgress; public CircleProgressBar(Context context) { super( context ); } public CircleProgressBar(Context context, @Nullable AttributeSet attrs) { super( context, attrs ); initAttrs(context,attrs); initVariable(); } public CircleProgressBar(Context context, @Nullable AttributeSet attrs, int defStyleAttr) { super( context, attrs, defStyleAttr ); } private void initAttrs(Context context, AttributeSet attrs) { TypedArray typeArray = context.getTheme().obtainStyledAttributes(attrs, R.styleable.TasksCompletedView, 0, 0); mRadius = typeArray.getDimension(R.styleable.TasksCompletedView_radius, 80); mStrokeWidth = typeArray.getDimension(R.styleable.TasksCompletedView_strokeWidth, 10); mCircleColor = typeArray.getColor(R.styleable.TasksCompletedView_circleColor, 0xFFFFFFFF); mRingColor = typeArray.getColor(R.styleable.TasksCompletedView_ringColor, 0xFFFFFFFF); mRingBgColor = typeArray.getColor(R.styleable.TasksCompletedView_ringBgColor, 0xFFFFFFFF); mRingRadius = mRadius + mStrokeWidth / 2; } private void initVariable() { //内圆 mCirclePaint = new Paint(); mCirclePaint.setAntiAlias(true); mCirclePaint.setColor(mCircleColor); mCirclePaint.setStyle(Paint.Style.FILL); //外圆弧背景 mRingPaintBg = new Paint(); mRingPaintBg.setAntiAlias(true); mRingPaintBg.setColor(mRingBgColor); mRingPaintBg.setStyle(Paint.Style.STROKE); mRingPaintBg.setStrokeWidth(mStrokeWidth); //外圆弧 mRingPaint = new Paint(); mRingPaint.setAntiAlias(true); mRingPaint.setColor(mRingColor); mRingPaint.setStyle(Paint.Style.STROKE); mRingPaint.setStrokeWidth(mStrokeWidth); //mRingPaint.setStrokeCap(Paint.Cap.ROUND);//设置线冒样式，有圆 有方 //中间字 mTextPaint = new Paint(); mTextPaint.setAntiAlias(true); mTextPaint.setStyle(Paint.Style.FILL); mTextPaint.setColor(mRingColor); mTextPaint.setTextSize(mRadius / 2); Paint.FontMetrics fm = mTextPaint.getFontMetrics(); mTxtHeight = (int) Math.ceil(fm.descent - fm.ascent); } @Override protected void onDraw(Canvas canvas) { super.onDraw( canvas ); mXCenter = getWidth() / 2; mYCenter = getHeight() / 2; //内圆 canvas.drawCircle( mXCenter, mYCenter, mRadius, mCirclePaint ); //外圆弧背景 RectF oval1 = new RectF(); oval1.left = (mXCenter - mRingRadius); oval1.top = (mYCenter - mRingRadius); oval1.right = mRingRadius * 2 + (mXCenter - mRingRadius); oval1.bottom = mRingRadius * 2 + (mYCenter - mRingRadius); canvas.drawArc( oval1, 0, 360, false, mRingPaintBg ); //圆弧所在的椭圆对象、圆弧的起始角度、圆弧的角度、是否显示半径连线 //外圆弧 if (mProgress > 0) { RectF oval = new RectF(); oval.left = (mXCenter - mRingRadius); oval.top = (mYCenter - mRingRadius); oval.right = mRingRadius * 2 + (mXCenter - mRingRadius); oval.bottom = mRingRadius * 2 + (mYCenter - mRingRadius); canvas.drawArc( oval, -90, ((float) mProgress / mTotalProgress) * 360, false, mRingPaint ); // //字体 String txt = mProgress + "%"; mTxtWidth = mTextPaint.measureText( txt, 0, txt.length() ); canvas.drawText( txt, mXCenter - mTxtWidth / 2, mYCenter + mTxtHeight / 4, mTextPaint ); } } //设置进度 public void setProgress(double progress) { mProgress = progress; postInvalidate();//重绘 } public void setCircleColor(int Color){ mRingPaint.setColor( Color ); postInvalidate();//重绘 }}签到界面
签到界面就倒计时和位置签到
一、倒计时
采用的是Thread+Handler
在子线程内总共发生两种标志至Handler内，0x00表示倒计时未完成，0x01表示倒计时完成。
private void CountDown(){ new Thread( ){ @Override public void run() { super.run(); for (int j = 14; j >= 0 ; j--) { for (int i = 59; i >= 0; i--) { Message message = handler.obtainMessage(); message.what = 0x00; message.arg1 = i; message.arg2 = j; handler.sendMessage( message ); try { Thread.sleep( 1000 ); } catch (InterruptedException e) { e.printStackTrace(); } } } Message message = handler.obtainMessage( ); message.what = 0x01; handler.sendMessage( message ); } }.start(); } final Handler handler = new Handler( ){ @Override public void handleMessage(@NonNull Message msg) { super.handleMessage( msg ); switch (msg.what){ case 0x00: if (msg.arg2 >= 10){ SignInMinutes.setText( msg.arg2+":" ); }else if (msg.arg2 < 10 && msg.arg2 > 0){ SignInMinutes.setText( "0"+msg.arg2+":" ); }else { SignInMinutes.setText( "00"+":" ); } if (msg.arg1 >= 10){ SignInSeconds.setText( msg.arg1+"" ); }else if (msg.arg1 < 10 && msg.arg1 > 0){ SignInSeconds.setText( "0"+msg.arg1 ); }else { SignInSeconds.setText( "00" ); } break; case 0x01: SignInSeconds.setText( "00" ); SignInMinutes.setText( "00:" ); break; } } };二、位置签到
位置签到采用的是百度地图SDK
public class LocationCheckIn extends AppCompatActivity { private MapView BaiDuMapView; private TextView CurrentPosition,mLatitude,mLongitude,CurrentDate,SignInPosition; private Button SubmitMessage,SuccessSignIn; private ImageView LocationSignIn_Exit; private View view = null; private PopupWindow mPopupWindow; private LocationClient client; private BaiduMap mBaiduMap; private double Latitude = 0; private double Longitude = 0; private boolean isFirstLocate = true; @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 ); } SDKInitializer.initialize( getApplicationContext() ); client = new LocationClient( getApplicationContext() );//获取全局Context client.registerLocationListener( new MyBaiDuMap() );//注册一个定位监听器，获取位置信息，回调此定位监听器 setContentView( R.layout.activity_location_check_in ); InitView(); InitBaiDuMap(); InitPermission(); InitPopWindows(); Listener(); } private void InitView(){ BaiDuMapView = findViewById( R.id.BaiDu_MapView ); CurrentPosition = findViewById( R.id.CurrentPosition ); SubmitMessage = findViewById( R.id.SubmitMessage ); mLatitude = findViewById( R.id.Latitude ); mLongitude = findViewById( R.id.Longitude ); LocationSignIn_Exit = findViewById( R.id.LocationSignIn_Exit ); } private void InitPopWindows(){ view = LayoutInflater.from( LocationCheckIn.this ).inflate( R.layout.signin_success ,null,false); CurrentDate = view.findViewById( R.id.CurrentDate ); SignInPosition = view.findViewById( R.id.SignInPosition ); SuccessSignIn = view.findViewById( R.id.Success); mPopupWindow = new PopupWindow( view, 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.MyPopupWindow ); //设置动画 Calendar calendar = Calendar.getInstance(); int Hour = calendar.get( Calendar.HOUR_OF_DAY ); int Minute = calendar.get( Calendar.MINUTE ); String sHour,sMinute; if (Hour < 10){ sHour = "0"+Hour; }else { sHour = ""+Hour; } if (Minute < 10){ sMinute = "0"+Minute; }else { sMinute = ""+Minute; } CurrentDate.setText( sHour+":"+sMinute ); //SignInPosition.setText( Position+"000"); SuccessSignIn.setOnClickListener( new View.OnClickListener() { @Override public void onClick(View v) { mPopupWindow.dismiss(); } } ); } private void ShowPopWindows(){ mPopupWindow.showAtLocation( view, Gravity.CENTER,0,0 ); } private void InitBaiDuMap(){ mBaiduMap = BaiDuMapView.getMap();//获取实例，可以对地图进行一系列操作，比如：缩放范围，移动地图 mBaiduMap.setMyLocationEnabled(true);//允许当前设备显示在地图上 } private void navigateTo(BDLocation location){ if (isFirstLocate){ LatLng lng = new LatLng(location.getLatitude(),location.getLongitude());//指定经纬度 MapStatusUpdate update = MapStatusUpdateFactory.newLatLng(lng); mBaiduMap.animateMapStatus(update); update = MapStatusUpdateFactory.zoomTo(16f);//百度地图缩放级别限定在3-19 mBaiduMap.animateMapStatus(update); isFirstLocate = false; } MyLocationData.Builder builder = new MyLocationData.Builder(); builder.latitude(location.getLatitude());//纬度 builder.longitude(location.getLongitude());//经度 MyLocationData locationData = builder.build(); mBaiduMap.setMyLocationData(locationData); } private void InitPermission(){ List<String> PermissionList = new ArrayList<>(); //判断权限是否授权 if (ContextCompat.checkSelfPermission( LocationCheckIn.this, Manifest.permission.ACCESS_FINE_LOCATION ) != PackageManager.PERMISSION_GRANTED) { PermissionList.add( Manifest.permission.ACCESS_FINE_LOCATION ); } if (ContextCompat.checkSelfPermission( LocationCheckIn.this, Manifest.permission.READ_PHONE_STATE ) != PackageManager.PERMISSION_GRANTED) { PermissionList.add( Manifest.permission.READ_PHONE_STATE ); } if (ContextCompat.checkSelfPermission( LocationCheckIn.this, Manifest.permission.WRITE_EXTERNAL_STORAGE ) != PackageManager.PERMISSION_GRANTED) { PermissionList.add( Manifest.permission.WRITE_EXTERNAL_STORAGE ); } if (!PermissionList.isEmpty()) { String[] Permissions = PermissionList.toArray( new String[PermissionList.size()] );//转化为数组 ActivityCompat.requestPermissions( LocationCheckIn.this, Permissions, 1 );//一次性申请权限 } else { requestLocation(); } } //执行 private void requestLocation(){ initLocation(); client.start(); } public void initLocation() { LocationClientOption option = new LocationClientOption(); option.setLocationMode(LocationClientOption.LocationMode.Hight_Accuracy); option.setCoorType("bd09ll"); option.setScanSpan(3000); option.setOpenGps(true); option.setLocationNotify(true); option.setIgnoreKillProcess(false); option.SetIgnoreCacheException(false); option.setIsNeedAltitude(true); option.setWifiCacheTimeOut(5 * 60 * 1000); option.setEnableSimulateGps(false); option.setIsNeedAddress(true); client.setLocOption(option); } class MyBaiDuMap implements BDLocationListener { @Override public void onReceiveLocation(BDLocation bdLocation) { Latitude = bdLocation.getLatitude();//获取纬度 Longitude = bdLocation.getLongitude();//获取经度 mLatitude.setText( Latitude+"" ); mLongitude.setText( Longitude+"" ); double Radius = bdLocation.getRadius(); if (bdLocation.getLocType() == BDLocation.TypeGpsLocation || bdLocation.getLocType() == BDLocation.TypeNetWorkLocation){ navigateTo(bdLocation); } //StringBuilder currentPosition = new StringBuilder(); StringBuilder currentCity = new StringBuilder( ); StringBuilder Position = new StringBuilder( ); //currentPosition.append("纬度：").append(bdLocation.getLatitude()).append("\n"); // currentPosition.append("经度：").append(bdLocation.getLongitude()).append("\n"); // currentPosition.append("定位方式："); //currentPosition.append( bdLocation.getProvince() ); // Position.append( bdLocation.getCity() ); Position.append( bdLocation.getDistrict() ); Position.append( bdLocation.getStreet() ); currentCity.append( bdLocation.getProvince() ); currentCity.append( bdLocation.getCity() ); currentCity.append( bdLocation.getDistrict() ); currentCity.append( bdLocation.getStreet() ); //mUpdatePosition = currentPosition+""; CurrentPosition.setText( currentCity ); SignInPosition.setText( Position); //Position = CurrentPosition.getText().toString()+""; //Function_CityName.setText( currentCity ); } } private void Listener(){ OnClick onClick = new OnClick(); SubmitMessage.setOnClickListener( onClick ); LocationSignIn_Exit.setOnClickListener( onClick ); } class OnClick implements View.OnClickListener{ @Override public void onClick(View v) { switch (v.getId()){ case R.id.SubmitMessage: ShowPopWindows(); break; case R.id.LocationSignIn_Exit: startActivity( new Intent( LocationCheckIn.this,SignIn.class ) ); } } }}成绩查询界面
采用的是MD的CardStackView，需要实现一个Adapter适配器，此适配器与RecyclerView适配器构建类似
一、创建StackAdapter 适配器
package com.franzliszt.Student.QueryScore;public class StackAdapter extends com.loopeer.cardstack.StackAdapter<Integer> { public StackAdapter(Context context) { super(context); } @Override public void bindView(Integer data, int position, CardStackView.ViewHolder holder) { if (holder instanceof ColorItemLargeHeaderViewHolder) { ColorItemLargeHeaderViewHolder h = (ColorItemLargeHeaderViewHolder) holder; h.onBind(data, position); } if (holder instanceof ColorItemWithNoHeaderViewHolder) { ColorItemWithNoHeaderViewHolder h = (ColorItemWithNoHeaderViewHolder) holder; h.onBind(data, position); } if (holder instanceof ColorItemViewHolder) { ColorItemViewHolder h = (ColorItemViewHolder) holder; h.onBind(data, position); } } @Override protected CardStackView.ViewHolder onCreateView(ViewGroup parent, int viewType) { View view; switch (viewType) { case R.layout.list_card_item_larger_header: view = getLayoutInflater().inflate(R.layout.list_card_item_larger_header, parent, false); return new ColorItemLargeHeaderViewHolder(view); case R.layout.list_card_item_with_no_header: view = getLayoutInflater().inflate(R.layout.list_card_item_with_no_header, parent, false); return new ColorItemWithNoHeaderViewHolder(view); case R.layout.other_item: view = getLayoutInflater().inflate(R.layout.other_item, parent, false); return new ColorItemViewHolder(view); case R.layout.other_item_thank: view = getLayoutInflater().inflate(R.layout.other_item_thank, parent, false); return new ColorItemViewHolder(view); case R.layout.other_item_note_1: view = getLayoutInflater().inflate(R.layout.other_item_note_1, parent, false); return new ColorItemViewHolder(view); case R.layout.other_item_note_2: view = getLayoutInflater().inflate(R.layout.other_item_note_2, parent, false); return new ColorItemViewHolder(view); default: view = getLayoutInflater().inflate(R.layout.first_semester, parent, false); return new ColorItemViewHolder(view); } } @Override public int getItemViewType(int position) { if (position == 6 ){//TODO TEST LARGER ITEM return R.layout.other_item; } else if (position == 7){ return R.layout.other_item_thank; }else if (position == 8){ return R.layout.other_item_note_1; }else if (position == 9){ return R.layout.other_item_note_2; } else { return R.layout.first_semester; } } static class ColorItemViewHolder extends CardStackView.ViewHolder { View mLayout; View mContainerContent; TextView mTextTitle; TextView ClassName1,ClassStatus1,ClassMethod1,ClassFlag1,Credit1,GradePoint1; TextView ClassName2,ClassStatus2,ClassMethod2,ClassFlag2,Credit2,GradePoint2; TextView ClassName3,ClassStatus3,ClassMethod3,ClassFlag3,Credit3,GradePoint3; TextView ClassName4,ClassStatus4,ClassMethod4,ClassFlag4,Credit4,GradePoint4; TextView TitleContent,MoreInfo; public ColorItemViewHolder(View view) { super(view); mLayout = view.findViewById(R.id.frame_list_card_item); mContainerContent = view.findViewById(R.id.container_list_content); mTextTitle = view.findViewById(R.id.text_list_card_title); TitleContent = view.findViewById( R.id.TitleContent ); MoreInfo = view.findViewById( R.id.MoreInfo ); ClassName1 = view.findViewById(R.id.ClassName1); ClassStatus1 = view.findViewById(R.id.ClassStatus1); ClassMethod1 = view.findViewById(R.id.ClassMethod1); ClassFlag1 = view.findViewById(R.id.ClassFlag1); Credit1 = view.findViewById(R.id.Credit1); GradePoint1= view.findViewById(R.id.GradePoint1); ClassName2 = view.findViewById(R.id.ClassName2); ClassStatus2 = view.findViewById(R.id.ClassStatus2); ClassMethod2 = view.findViewById(R.id.ClassMethod2); ClassFlag2 = view.findViewById(R.id.ClassFlag2); Credit2 = view.findViewById(R.id.Credit2); GradePoint2= view.findViewById(R.id.GradePoint2); ClassName3 = view.findViewById(R.id.ClassName3); ClassStatus3 = view.findViewById(R.id.ClassStatus3); ClassMethod3 = view.findViewById(R.id.ClassMethod3); ClassFlag3 = view.findViewById(R.id.ClassFlag3); Credit3 = view.findViewById(R.id.Credit3); GradePoint3= view.findViewById(R.id.GradePoint3); ClassName4 = view.findViewById(R.id.ClassName4); ClassStatus4 = view.findViewById(R.id.ClassStatus4); ClassMethod4 = view.findViewById(R.id.ClassMethod4); ClassFlag4 = view.findViewById(R.id.ClassFlag4); Credit4 = view.findViewById(R.id.Credit4); GradePoint4 = view.findViewById(R.id.GradePoint4); } @Override public void onItemExpand(boolean b) { mContainerContent.setVisibility(b ? View.VISIBLE : View.GONE); } public void onBind(Integer data, int position) { mLayout.getBackground().setColorFilter( ContextCompat.getColor(getContext(), data), PorterDuff.Mode.class="lazy" data-src_IN); //mTextTitle.setText( String.valueOf(position)); if (position == 0){ mTextTitle.setText( "2019-2020第一学期"); ClassName1.setText( "物联网概论" ); ClassStatus1.setText( "必修课" ); ClassFlag1.setText( "辅修标记: 主修" ); ClassMethod1.setText( "考核方式: 考试" ); Credit1.setText( "学分: 3.0" ); GradePoint1.setText( "绩点: 3.0" ); ClassName2.setText( "应用数学" ); ClassStatus2.setText( "必修课" ); ClassFlag2.setText( "辅修标记: 主修" ); ClassMethod2.setText( "考核方式: 考试" ); Credit2.setText( "学分: 3.0" ); GradePoint2.setText( "绩点: 2.0" ); ClassName3.setText( "大学英语" ); ClassStatus3.setText( "必修课" ); ClassFlag3.setText( "辅修标记: 主修" ); ClassMethod3.setText( "考核方式: 考试" ); Credit3.setText( "学分: 3.0" ); GradePoint3.setText( "绩点: 1.0" ); ClassName4.setText( "军事理论" ); ClassStatus4.setText( "选修课" ); ClassFlag4.setText( "辅修标记: 主修" ); ClassMethod4.setText( "考核方式: 考查" ); Credit4.setText( "学分: 2.0" ); GradePoint4.setText( "绩点: 3.0" ); }else if (position == 1){ mTextTitle.setText( "2019-2020第二学期"); ClassName1.setText( "电子技术" ); ClassStatus1.setText( "必修课" ); ClassFlag1.setText( "辅修标记: 主修" ); ClassMethod1.setText( "考核方式: 考试" ); Credit1.setText( "学分: 4.0" ); GradePoint1.setText( "绩点: 3.0" ); ClassName2.setText( "C语言程序设计" ); ClassStatus2.setText( "必修课" ); ClassFlag2.setText( "辅修标记: 主修" ); ClassMethod2.setText( "考核方式: 考试" ); Credit2.setText( "学分: 2.0" ); GradePoint2.setText( "绩点: 4.0" ); ClassName3.setText( "大学体育" ); ClassStatus3.setText( "必修课" ); ClassFlag3.setText( "辅修标记: 主修" ); ClassMethod3.setText( "考核方式: 考试" ); Credit3.setText( "学分: 1.5" ); GradePoint3.setText( "绩点: 3.0" ); ClassName4.setText( "音乐鉴赏" ); ClassStatus4.setText( "选修课" ); ClassFlag4.setText( "辅修标记: 主修" ); ClassMethod4.setText( "考核方式: 考查" ); Credit4.setText( "学分: 1.5" ); GradePoint4.setText( "绩点: 3.0" ); }else if (position == 2){ mTextTitle.setText( "2020-2021第一学期"); ClassName1.setText( "单片机技术应用" ); ClassStatus1.setText( "必修课" ); ClassFlag1.setText( "辅修标记: 主修" ); ClassMethod1.setText( "考核方式: 考试" ); Credit1.setText( "学分: 4.5" ); GradePoint1.setText( "绩点: 4.0" ); ClassName2.setText( "JAVA程序设计" ); ClassStatus2.setText( "必修课" ); ClassFlag2.setText( "辅修标记: 主修" ); ClassMethod2.setText( "考核方式: 考试" ); Credit2.setText( "学分: 1.0" ); GradePoint2.setText( "绩点: 3.0" ); ClassName3.setText( "自动识别技术" ); ClassStatus3.setText( "必修课" ); ClassFlag3.setText( "辅修标记: 主修" ); ClassMethod3.setText( "考核方式: 考试" ); Credit3.setText( "学分: 4.5" ); GradePoint3.setText( "绩点: 4.0" ); ClassName4.setText( "文化地理" ); ClassStatus4.setText( "选修课" ); ClassFlag4.setText( "辅修标记: 主修" ); ClassMethod4.setText( "考核方式: 考查" ); Credit4.setText( "学分: 1.0" ); GradePoint4.setText( "绩点: 4.0" ); }else if (position == 3){ mTextTitle.setText( "2020-2021第二学期"); ClassName1.setText( "Android程序设计" ); ClassStatus1.setText( "必修课" ); ClassFlag1.setText( "辅修标记: 主修" ); ClassMethod1.setText( "考核方式: 考试" ); Credit1.setText( "学分: 1.0" ); GradePoint1.setText( "绩点: 4.0" ); ClassName2.setText( "无线传感网络技术" ); ClassStatus2.setText( "必修课" ); ClassFlag2.setText( "辅修标记: 主修" ); ClassMethod2.setText( "考核方式: 考试" ); Credit2.setText( "学分: 1.0" ); GradePoint2.setText( "绩点: 4.0" ); ClassName3.setText( "体育" ); ClassStatus3.setText( "必修课" ); ClassFlag3.setText( "辅修标记: 主修" ); ClassMethod3.setText( "考核方式: 考试" ); Credit3.setText( "学分: 1.5" ); GradePoint3.setText( "绩点: 3.0" ); ClassName4.setText( "有效沟通技巧" ); ClassStatus4.setText( "选修课" ); ClassFlag4.setText( "辅修标记: 主修" ); ClassMethod4.setText( "考核方式: 考查" ); Credit4.setText( "学分: 1.5" ); GradePoint4.setText( "绩点: 3.0" ); }else if (position == 4){ mTextTitle.setText( "2021-2022第一学期"); ClassName1.setText( "物联网概论" ); ClassStatus1.setText( "必修课" ); ClassFlag1.setText( "辅修标记: 主修" ); ClassMethod1.setText( "考核方式: 考试" ); Credit1.setText( "学分: 3.0" ); GradePoint1.setText( "绩点: 3.0" ); ClassName2.setText( "应用数学" ); ClassStatus2.setText( "必修课" ); ClassFlag2.setText( "辅修标记: 主修" ); ClassMethod2.setText( "考核方式: 考试" ); Credit2.setText( "学分: 3.0" ); GradePoint2.setText( "绩点: 2.0" ); ClassName3.setText( "大学英语" ); ClassStatus3.setText( "必修课" ); ClassFlag3.setText( "辅修标记: 主修" ); ClassMethod3.setText( "考核方式: 考试" ); Credit3.setText( "学分: 3.0" ); GradePoint3.setText( "绩点: 1.0" ); ClassName4.setText( "军事理论" ); ClassStatus4.setText( "必修课" ); ClassFlag4.setText( "辅修标记: 主修" ); ClassMethod4.setText( "考核方式: 考查" ); Credit4.setText( "学分: 2.0" ); GradePoint4.setText( "绩点: 3.0" ); }else if (position == 5){ mTextTitle.setText( "2021-2022第二学期"); ClassName1.setText( "物联网概论" ); ClassStatus1.setText( "必修课" ); ClassFlag1.setText( "辅修标记: 主修" ); ClassMethod1.setText( "考核方式: 考试" ); Credit1.setText( "学分: 3.0" ); GradePoint1.setText( "绩点: 3.0" ); ClassName2.setText( "应用数学" ); ClassStatus2.setText( "必修课" ); ClassFlag2.setText( "辅修标记: 主修" ); ClassMethod2.setText( "考核方式: 考试" ); Credit2.setText( "学分: 3.0" ); GradePoint2.setText( "绩点: 2.0" ); ClassName3.setText( "大学英语" ); ClassStatus3.setText( "必修课" ); ClassFlag3.setText( "辅修标记: 主修" ); ClassMethod3.setText( "考核方式: 考试" ); Credit3.setText( "学分: 3.0" ); GradePoint3.setText( "绩点: 1.0" ); ClassName4.setText( "军事理论" ); ClassStatus4.setText( "必修课" ); ClassFlag4.setText( "辅修标记: 主修" ); ClassMethod4.setText( "考核方式: 考查" ); Credit4.setText( "学分: 2.0" ); GradePoint4.setText( "绩点: 3.0" ); }else if (position == 6){ mTextTitle.setText( "毕业设计"); }else if (position == 7){ mTextTitle.setText( "致谢"); }else if (position == 8){ mTextTitle.setText( "校园杂记一"); }else if (position == 9){ mTextTitle.setText( "校园杂记二"); }else { mTextTitle.setText( String.valueOf(position)); } } } static class ColorItemWithNoHeaderViewHolder extends CardStackView.ViewHolder { View mLayout; TextView mTextTitle; public ColorItemWithNoHeaderViewHolder(View view) { super(view); mLayout = view.findViewById(R.id.frame_list_card_item); mTextTitle = (TextView) view.findViewById(R.id.text_list_card_title); } @Override public void onItemExpand(boolean b) { } public void onBind(Integer data, int position) { mLayout.getBackground().setColorFilter(ContextCompat.getColor(getContext(), data), PorterDuff.Mode.class="lazy" data-src_IN); mTextTitle.setText( String.valueOf(position)); } } static class ColorItemLargeHeaderViewHolder extends CardStackView.ViewHolder { View mLayout; View mContainerContent; TextView mTextTitle; public ColorItemLargeHeaderViewHolder(View view) { super(view); mLayout = view.findViewById(R.id.frame_list_card_item); mContainerContent = view.findViewById(R.id.container_list_content); mTextTitle = view.findViewById(R.id.text_list_card_title); } @Override public void onItemExpand(boolean b) { mContainerContent.setVisibility(b ? View.VISIBLE : View.GONE); } @Override protected void onAnimationStateChange(int state, boolean willBeSelect) { super.onAnimationStateChange(state, willBeSelect); if (state == CardStackView.ANIMATION_STATE_START && willBeSelect) { onItemExpand(true); } if (state == CardStackView.ANIMATION_STATE_END && !willBeSelect) { onItemExpand(false); } } public void onBind(Integer data, int position) { mLayout.getBackground().setColorFilter(ContextCompat.getColor(getContext(), data), PorterDuff.Mode.class="lazy" data-src_IN); mTextTitle.setText( String.valueOf(position)); mTextTitle.setText( "2019-2020第一学期"); itemView.findViewById(R.id.text_view).setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { ((CardStackView)itemView.getParent()).performItemClick(ColorItemLargeHeaderViewHolder.this); } }); } }}二、绑定适配器
QueryScoreCardStackView.setItemExpendListener( this ); adapter = new StackAdapter( this ); QueryScoreCardStackView.setAdapter( adapter );三、为每一个子项添加背景色
public static Integer[] COLOR_DATAS = new Integer[]{ R.color.color_1, R.color.color_2, R.color.color_3, R.color.color_4, R.color.color_5, R.color.color_6, R.color.color_7, R.color.color_8, R.color.color_9, R.color.color_10, }; new Handler( ).postDelayed( new Runnable() { @Override public void run() { adapter.updateData( Arrays.asList( COLOR_DATAS ) ); } } ,200);“怎么用Android开发一个学生管理系统”的内容就介绍到这里了，感谢大家的阅读。如果想了解更多行业相关的知识可以关注编程网网站，小编将为大家输出更多高质量的实用文章！
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