前言:先寫個簡單的地點簽到功能，如果日后有時間細寫的話，會更加好好研究一下百度地圖api,做更多邏輯判斷。

這里主要是調用百度地圖中的場景定位中的簽到場景。通過官方文檔進行api集成。通過GPS的定位功能，獲取地理位置，時間，用戶名進行存儲。之后通過日歷顯示歷史簽到記錄。

效果圖：

/**百度地圖sdk**/ implementation files(’libs/BaiduLBS_Android.jar’) /**日歷選擇器**/ implementation ’com.prolificinteractive:material-calendarview:1.4.3’

簽到布局：

<?xml version='1.0' encoding='utf-8'?><LinearLayout xmlns:android='http://schemas.android.com/apk/res/android' xmlns:app='http://schemas.android.com/apk/res-auto' xmlns:tools='http://schemas.android.com/tools' android:layout_width='match_parent' android:layout_height='match_parent' android:background='@color/color_ffffff' android:orientation='vertical' tools:context='.activity.SignInActivity'> <LinearLayout android:layout_width='match_parent' android:layout_height='match_parent' android:layout_margin='20dp' android:orientation='vertical'> <TextView android: android:layout_width='match_parent' android:layout_height='wrap_content' android:textColor='@color/color_000000' android:textSize='18sp' /> <TextView android:layout_width='match_parent' android:layout_height='wrap_content' android:text='@string/check_in_area' /> <View /> <LinearLayout android: android:layout_width='match_parent' android:layout_height='wrap_content' android:layout_margin='5dp' android:orientation='horizontal' android:visibility='gone'> <ImageView android:layout_width='40dp' android:layout_height='40dp' android:layout_margin='5dp' android:src='http://www.gepszalag.com/bcjs/@mipmap/sign_in_address' /> <LinearLayout android:layout_width='match_parent' android:layout_height='wrap_content' android:orientation='vertical'> <TextView android: android:layout_width='match_parent' android:layout_height='wrap_content' android:layout_margin='2dp' android:textColor='@color/color_000000' android:textSize='20sp' /> <LinearLayout android:layout_width='wrap_content' android:layout_height='wrap_content' android:orientation='horizontal'> <TextView android:layout_width='match_parent' android:layout_height='wrap_content' android:layout_marginLeft='5dp' android:text='@string/sign_in_time' /> <TextView android: android:layout_width='match_parent' android:layout_height='wrap_content' /> </LinearLayout> <TextView android: android:layout_width='match_parent' android:layout_height='wrap_content' /> <Button android: android:layout_width='120dp' android:layout_height='40dp' android:layout_centerHorizontal='true' android:layout_marginTop='10dp' android:background='@drawable/btn_round_border' android:text='@string/sign_again' android:textAllCaps='false' android:textColor='@color/colorPrimary' android:textSize='15sp' /> </LinearLayout> </LinearLayout> <Button android:android:layout_gravity='center_vertical|center_horizontal' android:layout_marginTop='50dp' android:background='@drawable/btn_negative_nomal' android:text='@string/signIn' android:visibility='gone' /> </LinearLayout> </LinearLayout>

SignInActivity.java

public class SignInActivity extends BaseActivity { @BindView(R.id.sign_calendar) TextView signCalender; @BindView(R.id.line_sign_result) LinearLayout lineSignResult; @BindView(R.id.sign_in_result) TextView signInResult; @BindView(R.id.sign_in_time) TextView signInTime; @BindView(R.id.sign_address) TextView signAddress; @BindView(R.id.btn_sign_in) Button btnSignIn; private LocationService mLocationService; private boolean isAgain = false; SignIn signIn = new SignIn(); MyUser myUser = BmobUser.getCurrentUser(MyUser.class); @Override protected int contentViewID() { return R.layout.activity_sign_in; } @Override protected void initialize() { setTopTitle(getString(R.string.signIn), true); setLeftBtnFinish(); setDate(); setLocation(); querySignInState(); } /** * 查詢今日簽到狀態 */ private void querySignInState() { BmobQuery<SignIn> signInBmobQuery = new BmobQuery<SignIn>(); signInBmobQuery.addWhereEqualTo('username', myUser.getUsername()); signInBmobQuery.addWhereEqualTo('date', FormatUtils.getDateTimeString(Calendar.getInstance().getTime(), FormatUtils.template_Date)); signInBmobQuery.findObjects(new FindListener<SignIn>() { @Override public void done(List<SignIn> object, BmobException e) { if (e == null) { if (object.isEmpty()){ isAgain = false; btnSignIn.setVisibility(View.VISIBLE); } else { isAgain = true; SignIn signIn = object.get(0); btnSignIn.setVisibility(View.GONE); lineSignResult.setVisibility(View.VISIBLE); signAddress.setText(signIn.getAddress()); signInTime.setText(signIn.getTime()); signInResult.setText(getString(R.string.sign_in_success)); } } else { isAgain = false; } } }); } private void setLocation() { // 初始化 LocationClient mLocationService = new LocationService(this); // 注冊監聽 mLocationService.registerListener(mListener); LocationClientOption option = mLocationService.getOption(); // 簽到場景 只進行一次定位返回最接近真實位置的定位結果（定位速度可能會延遲1-3s） option.setLocationPurpose(LocationClientOption.BDLocationPurpose.SignIn); // 設置定位參數 mLocationService.setLocationOption(option); } /***** * * 定位結果回調，重寫onReceiveLocation方法 * */ private BDAbstractLocationListener mListener = new BDAbstractLocationListener() { /** * 定位請求回調函數 * * @param location 定位結果 */ @Override public void onReceiveLocation(BDLocation location) { if (null != location && location.getLocType() != BDLocation.TypeServerError && location.getLocType() != BDLocation.TypeOffLineLocationFail && location.getLocType() != BDLocation.TypeCriteriaException) { String address = location.getAddrStr(); //獲取詳細地址信息 if (!isAgain) { saveSignIn(address); } else { updateSignIn(address); } } else { signInResult.setText(getString(R.string.sign_in_failure)); } } }; private void setDate() { String dateString = FormatUtils.getDateTimeString(Calendar.getInstance().getTime(), FormatUtils.template_Date); String weekString = DateUtils.getDayOfWeek(); String CalendarString = dateString + ' ' + weekString; signCalender.setText(CalendarString); } @OnClick({R.id.btn_sign_in, R.id.btn_sign_again}) public void onClick(View view) { switch (view.getId()) { case R.id.btn_sign_in: signIn(); break; case R.id.btn_sign_again: isAgain = true; signIn(); break; default: } } /** * 更新簽到數據 * @param address */ private void updateSignIn(String address) { Calendar calendar = Calendar.getInstance(); SignIn newSignIn = new SignIn(); newSignIn.setUsername(myUser.getUsername()); newSignIn.setAddress(address); signIn.setDate(FormatUtils.getDateTimeString(calendar.getTime(), FormatUtils.template_Date)); signIn.setTime(FormatUtils.getDateTimeString(calendar.getTime(), FormatUtils.template_Time)); newSignIn.update(signIn.getObjectId(), new UpdateListener() { @Override public void done(BmobException e) { if (e == null) { signAddress.setText(address); signInTime.setText(FormatUtils.getDateTimeString(Calendar.getInstance().getTime(), FormatUtils.template_Time)); signInResult.setText(getString(R.string.sign_in_success)); ToastUtils.showShort(SignInActivity.this, getString(R.string.sign_in_success)); } else { ToastUtils.showShort(SignInActivity.this, getString(R.string.sign_in_failure)); } } }); } /** * 保存簽到數據 * @param address */ private void saveSignIn(String address) { Calendar calendar = Calendar.getInstance(); signIn.setUsername(myUser.getUsername()); signIn.setAddress(address); signIn.setDate(FormatUtils.getDateTimeString(calendar.getTime(), FormatUtils.template_Date)); signIn.setTime(FormatUtils.getDateTimeString(calendar.getTime(), FormatUtils.template_Time)); signIn.save(new SaveListener<String>() { @Override public void done(String s, BmobException e) { if (e == null) { btnSignIn.setVisibility(View.GONE); lineSignResult.setVisibility(View.VISIBLE); signAddress.setText(address); signInTime.setText(FormatUtils.getDateTimeString(Calendar.getInstance().getTime(), FormatUtils.template_Time)); signInResult.setText(getString(R.string.sign_in_success)); ToastUtils.showShort(SignInActivity.this, getString(R.string.sign_in_success)); } else { ToastUtils.showShort(SignInActivity.this, getString(R.string.sign_in_failure)); } } }); } /** * 簽到 */ private void signIn() { if (mLocationService.isStart()) { mLocationService.requestLocation(); return; } //簽到只需調用startLocation即可 mLocationService.start(); } @Override protected void onDestroy() { super.onDestroy(); if (mLocationService != null) { mLocationService.unregisterListener(mListener); mLocationService.stop(); } }}

歷史簽到布局

<?xml version='1.0' encoding='utf-8'?><androidx.constraintlayout.widget.ConstraintLayout xmlns:android='http://schemas.android.com/apk/res/android' xmlns:app='http://schemas.android.com/apk/res-auto' xmlns:tools='http://schemas.android.com/tools' android:layout_width='match_parent' android:layout_height='match_parent' android:background='@color/color_ffffff' tools:context='.activity.MySignInActivity'> <LinearLayout android:layout_width='match_parent' android:layout_height='match_parent' android:layout_margin='10dp' android:orientation='vertical'> <com.prolificinteractive.materialcalendarview.MaterialCalendarView android: android:layout_width='match_parent' android:layout_height='300dp' android:background='@color/white' android:clipChildren='false' app:mcv_calendarMode='month' app:mcv_dateTextAppearance='@style/MaterialCalendarTextStyelNormal' app:mcv_firstDayOfWeek='sunday' app:mcv_selectionColor='#D203A9F4' app:mcv_showOtherDates='all' app:mcv_tileSize='match_parent' app:mcv_tileWidth='match_parent' /> <View /> <LinearLayout android: android:layout_width='match_parent' android:layout_height='wrap_content' android:layout_margin='15dp' android:visibility='gone' android:orientation='horizontal'> <ImageView android:layout_width='40dp' android:layout_height='40dp' android:layout_margin='5dp' android:src='http://www.gepszalag.com/bcjs/@mipmap/sign_in_address' /> <LinearLayout android:layout_width='match_parent' android:layout_height='wrap_content' android:orientation='vertical'> <LinearLayout android:layout_width='match_parent' android:layout_height='wrap_content'> <TextView android:layout_width='wrap_content' android:layout_height='wrap_content' android:textColor='@color/color_000000' android:textSize='18sp' android:text='@string/sign_in_time'/> <TextView android: android:layout_width='wrap_content' android:layout_height='wrap_content' android:textColor='@color/color_000000' android:textSize='18sp' android:layout_marginLeft='5dp'/> <TextView android: android:layout_width='wrap_content' android:layout_height='wrap_content' android:textColor='@color/color_000000' android:textSize='18sp' android:layout_marginLeft='5dp'/> </LinearLayout> <TextView android: android:layout_width='wrap_content' android:layout_height='wrap_content' android:layout_marginLeft='5dp'/> </LinearLayout> </LinearLayout> </LinearLayout></androidx.constraintlayout.widget.ConstraintLayout>

MySignInActivity.java

public class MySignInActivity extends BaseActivity implements OnDateSelectedListener { @BindView(R.id.my_sign_in_date) TextView mySignInDate; @BindView(R.id.my_sign_in_time) TextView mySignInTime; @BindView(R.id.my_sign_in_address) TextView mySignInAddress; @BindView(R.id.line_my_sign_in) LinearLayout lineMySignIn; @BindView(R.id.materialCalendarView_sign_in) MaterialCalendarView widget; MyUser myUser = BmobUser.getCurrentUser(MyUser.class); private List<CalendarDay> calendarDays = new ArrayList<>(); @Override protected int contentViewID() { return R.layout.activity_my_sign_in; } @Override protected void initialize() { setTopTitle(getString(R.string.my_sign_in), true); setLeftBtnFinish(); widget.setSelectedDate(CalendarDay.today()); widget.state().edit().setMaximumDate(CalendarDay.today()).commit(); widget.setOnDateChangedListener(this); initDate(); querySignInState(Calendar.getInstance()); } private void initDate() { BmobQuery<SignIn> signInBmobQuery = new BmobQuery<SignIn>(); signInBmobQuery.addWhereEqualTo('username', myUser.getUsername()); signInBmobQuery.findObjects(new FindListener<SignIn>() { @Override public void done(List<SignIn> object, BmobException e) { if (e == null) { if (!object.isEmpty()) { for (SignIn signIn : object) { Date date = DateUtils.strToDate(signIn.getDate() + ' ' + signIn.getTime()); calendarDays.add(CalendarDay.from(date)); } widget.addDecorator(new EventDecorator(ContextCompat.getColor(MySignInActivity.this, R.color.color_1396aa), calendarDays)); } } else { LogUtils.e(e.getMessage()); ToastUtils.showShort(MySignInActivity.this, getString(R.string.query_failure)); } } }); } @Override public void onDateSelected(@NonNull MaterialCalendarView widget, @NonNull CalendarDay date, boolean selected) { querySignInState(date.getCalendar()); } private void querySignInState(Calendar calendar) { BmobQuery<SignIn> signInBmobQuery = new BmobQuery<SignIn>(); signInBmobQuery.addWhereEqualTo('username', myUser.getUsername()); signInBmobQuery.addWhereEqualTo('date', FormatUtils.getDateTimeString(calendar.getTime(), FormatUtils.template_Date)); signInBmobQuery.findObjects(new FindListener<SignIn>() { @Override public void done(List<SignIn> object, BmobException e) { if (e == null) { if (!object.isEmpty()) { lineMySignIn.setVisibility(View.VISIBLE); SignIn signIn = object.get(0); mySignInDate.setText(signIn.getDate()); mySignInTime.setText(signIn.getTime()); mySignInAddress.setText(signIn.getAddress()); } else { lineMySignIn.setVisibility(View.GONE); } } else { ToastUtils.showShort(MySignInActivity.this, getString(R.string.query_failure)); } } }); } }

日歷小圓點裝飾，重寫 DayViewDecorator

public class EventDecorator implements DayViewDecorator { private int color; private HashSet<CalendarDay> dates; public EventDecorator(int color, Collection<CalendarDay> dates) { this.color = color; this.dates = new HashSet<>(dates); } @Override public boolean shouldDecorate(CalendarDay day) { return dates.contains(day); } @Override public void decorate(DayViewFacade view) { view.addSpan(new DotSpan(7, color)); }}

總結

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