日期选择前后一周，日，年，月

之前做了一个小Demo，选择一个日期后，按前进向前一周，按后退向后一周，同理还有日，月，年的，自己在那算了好几个小时，在网上也没找到好一点的demo，今天贴出来，以后开发粘贴复制即可。

上货！！！

需要用到的三方依赖：

implementation 'com.contrarywind:Android-PickerView:4.1.9'

代码MainActivity:

public class Main2Activity extends AppCompatActivity {

    private TextView tvDate1;
    private TextView tvDate2;
    private TextView tvRight;
    private ImageView ivUp;
    private ImageView ivDown;
    private LinearLayout dialogLayout;
//    private PopupWindow selectPopup;

    private int index = 0;

    private Calendar selectedDate;
    private Calendar startDate;
    private Calendar endDate;
    boolean[] week_type = {true, true, true, false, false, false};
    boolean[] month_type = {true, true, false, false, false, false};
    boolean[] year_type = {true, false, false, false, false, false};
    private Date nowWeek;
    private Date nowWeekSub;
    private Date nowDay;
    private Date nowDaySub;
    private Date nowMonth;
    private int nowYear;
    private int nowYearSub;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main2);
        //左边的
        ivUp = (ImageView) findViewById(R.id.ivUp);
        tvDate1 = (TextView) findViewById(R.id.tvDateOne);
        //右边的
        ivDown = (ImageView) findViewById(R.id.ivDown);
        tvDate2 = (TextView)findViewById(R.id.tvDateTwo);
        //控制年，月，日，周账单的
        tvRight = (TextView)findViewById(R.id.tvRight);
        dialogLayout = findViewById(R.id.llselectDate);
        initView();
        tvDate1.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                String s = tvRight.getText().toString();
                if (s != null) {
                    if (s.equals("日账单")){
                        selectDate(1,week_type);
                    }else  if (s.equals("周账单")){
                        selectDate(2,week_type);
                    }else  if (s.equals("月账单")){
                        selectDate(3,month_type);
                    }else  if (s.equals("年账单")){
                        selectDate(4,year_type);
                    }
                }
            }
        });
        ivUp.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                String s1 = tvRight.getText().toString();
                if (s1 != null) {
                    if (s1.equals("日账单")){
                        upDate(1);
                    }else  if (s1.equals("周账单")){
                        upDate(2);
                    }else  if (s1.equals("月账单")){
                        upDate(3);
                    }else  if (s1.equals("年账单")){
                        upDate(4);
                    }
                }
            }
        });
        ivDown.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                String s2 = tvRight.getText().toString();
                if (s2 != null) {
                    if (s2.equals("日账单")){
                        downDate(1);
                    }else  if (s2.equals("周账单")){
                        downDate(2);
                    }else  if (s2.equals("月账单")){
                        downDate(3);
                    }else  if (s2.equals("年账单")){
                        downDate(4);
                    }

                }
            }
        });
    }

    //选择日期
    private void selectDate(final int i,boolean []type) {
        //添加标题
        TimePickerView timePickerView = new TimePickerBuilder(Main2Activity.this, new OnTimeSelectListener() {
            @Override
            public void onTimeSelect(Date date, View v) {
                if (i==1){
                    nowDay = date;
                    String time = new SimpleDateFormat("yyyy-MM-dd").format(date);
                    //现在选择的时间，往后一天
                    String nextTime = dayAdd(date);
                    try {
                        nowDaySub = new SimpleDateFormat("yyyy-MM-dd").parse(nextTime);
                    } catch (ParseException e) {
                        e.printStackTrace();
                    }
                    tvDate1.setText(time);
                    tvDate2.setText(nextTime);
                }else if (i==2){
                    nowWeek = date;
                    String time = new SimpleDateFormat("yyyy-MM-dd").format(date);
                    //现在选择的时间，往后七天
                    String nextTime = weekAdd(date);
                    try {
                        nowWeekSub = new SimpleDateFormat("yyyy-MM-dd").parse(nextTime);
                    } catch (ParseException e) {
                        e.printStackTrace();
                    }

                    tvDate1.setText(time);
                    tvDate2.setText(nextTime);
                }else if (i==3){
                    nowMonth = date;
                    String time = new SimpleDateFormat("yyyy-MM").format(date);
                    //现在选择的时间，往后一月
                    String nextTime = monthAdd(date);
                    tvDate1.setText(time);
                    tvDate2.setText(nextTime);
                }
                else if (i==4){
                    String time = new SimpleDateFormat("yyyy").format(date);
                    nowYear = Integer.parseInt(time);
                    //现在选择的时间，往后一年
                    String nextTime = yearAdd(nowYear);
                    nowYearSub = Integer.parseInt(nextTime);
                    tvDate1.setText(time);
                    tvDate2.setText(nextTime);
                }

            }
        })
                //添加标题
                .setTitleText("请选择")
                .setTitleSize(16)
                .setCancelColor(Color.parseColor("#656565"))
                .setSubmitColor(Color.parseColor("#1E90FF"))
                .setContentTextSize(13)
                //是否为Dialog样式
                .isDialog(true)
                //显示添加的控件位置
                .setDecorView(dialogLayout)
                //设置时间，数组代表年月日时分秒，
                .setType(type)
                //开始和结束年份
                .setRangDate(startDate,endDate)
                //当前选择年份
                .setDate(selectedDate)
                .setItemVisibleCount(4)//可见行数
                .setLineSpacingMultiplier(3)//行间距
                .setDividerColor(Color.parseColor("#1E90FF"))
                .build();
        timePickerView.show();

    }
    //上一周，日，月，年
    private void upDate(final int i){
        if (i==1){
            try {
                String right = daySub(nowDaySub);
                nowDaySub = new SimpleDateFormat("yyyy-MM-dd").parse(right);
                String left = daySub(nowDaySub);
                tvDate1.setText(left);
                tvDate2.setText(right);
            } catch (ParseException e) {
                e.printStackTrace();
            }
        }else if (i==2){
            try {
                String right = weekSub(nowWeekSub);
                nowWeekSub = new SimpleDateFormat("yyyy-MM-dd").parse(right);
                String left = weekSub(nowWeekSub);
                tvDate1.setText(left);
                tvDate2.setText(right);

            } catch (ParseException e) {
                e.printStackTrace();
            }
        }else if (i==3){
            try {
                int a = 0;
                if (a == 0) {
                    String left = monthSub(nowMonth);
                    nowMonth = new SimpleDateFormat("yyyy-MM").parse(left);
                    String right = monthAdd(nowMonth);
//                    showLog("tagaaa","   "+left+"    "+right);
                    tvDate1.setText(left);
                    tvDate2.setText(right);
                    a = 1;
                } else {
                    String right = monthSub(nowMonth);
                    nowMonth = new SimpleDateFormat("yyyy-MM").parse(right);
                    String left = monthSub(nowMonth);
//                    showLog("tagaaa","   "+left+"    "+right);
                    tvDate1.setText(left);
                    tvDate2.setText(right);
                }
            } catch (ParseException e) {
                e.printStackTrace();
            }
        }else if (i==4){
            String right = yearSub(nowYearSub);
            nowYearSub = Integer.parseInt(right);
            String left = yearSub(nowYearSub);
            tvDate1.setText(left);
            tvDate2.setText(right);
        }
    }
    //下一周，日，月，年
    private void downDate(final int i){
        if (i==1){
            try {
                String left = dayAdd(nowDay);
                nowDay = new SimpleDateFormat("yyyy-MM-dd").parse(left);
                String right = dayAdd(nowDay);
                tvDate1.setText(left);
                tvDate2.setText(right);
            } catch (ParseException e) {
                e.printStackTrace();
            }
        }else if (i==2){
            try {
                String left = weekAdd(nowWeek);
                nowWeek = new SimpleDateFormat("yyyy-MM-dd").parse(left);
                String right = weekAdd(nowWeek);
                tvDate1.setText(left);
                tvDate2.setText(right);
            } catch (ParseException e) {
                e.printStackTrace();
            }
        }else if (i==3){
            try {
                String left = monthAdd(nowMonth);
                nowMonth = new SimpleDateFormat("yyyy-MM").parse(left);
                String right = monthAdd(nowMonth);
                tvDate1.setText(left);
                tvDate2.setText(right);

            } catch (ParseException e) {
                e.printStackTrace();
            }
        }else if (i==4){
            String left = yearAdd(nowYear);
            nowYear = Integer.parseInt(left);
            String right = yearAdd(nowYear);
            tvDate1.setText(left);
            tvDate2.setText(right);
        }
    }

    //初始化控件
    protected void initView() {
        tvRight.setVisibility(View.VISIBLE);
        //这边直接写死了是时间类型
        tvRight.setText("周账单");
        tvRight.setTextSize(14);

        //设置当前日期
        initDtate();
    }

    private void initDtate() {
        //当前日期
        selectedDate = Calendar.getInstance();
        //获取当前年份
        int year = selectedDate.get(Calendar.YEAR);
        //开始日期
        startDate = Calendar.getInstance();
        //结束日期
        endDate = Calendar.getInstance();
        //月份是从0-11,日是1-31的
        int startYear = year - 1;
        startDate.set(startYear, 0, 1);
        endDate.set(year, 11, 31);

        nowWeek=new Date(System.currentTimeMillis());
        nowWeekSub=new Date(System.currentTimeMillis());
        tvDate2.setText(new SimpleDateFormat("yyyy-MM-dd").format(System.currentTimeMillis()));
        String nextTime = weekSub(new Date(System.currentTimeMillis()));
        tvDate1.setText(nextTime);
    }

    public String weekAdd(Date date) {
        Calendar select_week = Calendar.getInstance();
        select_week.setTime(date);
        int i = select_week.get(Calendar.DAY_OF_MONTH) + 7;
        select_week.set(Calendar.DAY_OF_MONTH, i);
        Date nextWeek = select_week.getTime();
        String nextTime = new SimpleDateFormat("yyyy-MM-dd").format(nextWeek);
        return nextTime;
    }

    public String weekSub(Date date) {
        Calendar select_week = Calendar.getInstance();
        select_week.setTime(date);
        int i = select_week.get(Calendar.DAY_OF_MONTH) - 7;
        select_week.set(Calendar.DAY_OF_MONTH, i);
        Date nextWeek = select_week.getTime();
        String nextTime = new SimpleDateFormat("yyyy-MM-dd").format(nextWeek);
        return nextTime;
    }

    public String dayAdd(Date date) {
        Calendar select_week = Calendar.getInstance();
        select_week.setTime(date);
        int i = select_week.get(Calendar.DAY_OF_MONTH) + 1;
        select_week.set(Calendar.DAY_OF_MONTH, i);
        Date nextWeek = select_week.getTime();
        String nextTime = new SimpleDateFormat("yyyy-MM-dd").format(nextWeek);
        return nextTime;
    }

    public String daySub(Date date) {
        Calendar select_week = Calendar.getInstance();
        select_week.setTime(date);
        int i = select_week.get(Calendar.DAY_OF_MONTH) - 1;
        select_week.set(Calendar.DAY_OF_MONTH, i);
        Date nextWeek = select_week.getTime();
        String nextTime = new SimpleDateFormat("yyyy-MM-dd").format(nextWeek);
        return nextTime;
    }

    public String monthAdd(Date date) {
        Calendar select_week = Calendar.getInstance();
        select_week.setTime(date);
        int i = select_week.get(Calendar.MONTH);
        int year = select_week.get(Calendar.YEAR);
        if (i == 12) {
            year = select_week.get(Calendar.YEAR) + 1;
            i = 1;
        }
        i++;
        select_week.set(Calendar.MONTH, i);
        select_week.set(Calendar.YEAR, year);
        Date nextWeek = select_week.getTime();
        String nextTime = new SimpleDateFormat("yyyy-MM").format(nextWeek);
        return nextTime;
    }

    public String monthSub(Date date) {
        Calendar select_week = Calendar.getInstance();
        select_week.setTime(date);
        int i = select_week.get(Calendar.MONTH);
        int year = select_week.get(Calendar.YEAR);
        if (i == 0) {
            year = select_week.get(Calendar.YEAR) - 1;
            i = 12;
        }
        i--;
        select_week.set(Calendar.MONTH, i);
        select_week.set(Calendar.YEAR, year);
        Date nextWeek = select_week.getTime();
        String nextTime = new SimpleDateFormat("yyyy-MM").format(nextWeek);
        return nextTime;
    }

    public String yearAdd(int now) {
        now++;
        return now + "";
    }

    public String yearSub(int now) {
        now--;
        return now + "";
    }
}

XML部分：

<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:orientation="vertical"
    tools:context="com.mdj.acer.dxtest.Main2Activity">

    <TextView
        android:id="@+id/tvRight"
        android:layout_width="match_parent"
        android:layout_height="20dp"
        android:text="666"
        />

    <LinearLayout
        android:id="@+id/llselectDate"
        android:layout_width="343dp"
        android:layout_height="48dp"
        android:layout_gravity="center_horizontal"
        android:layout_marginTop="16dp"
        android:orientation="horizontal">

        <ImageView
            android:id="@+id/ivUp"
            android:layout_width="0dp"
            android:layout_weight="1"
            android:layout_height="wrap_content"
            android:layout_gravity="center_vertical"
            android:src="@mipmap/ic_launcher" />

        <TextView
            android:id="@+id/tvDateOne"
            android:layout_width="0dp"
            android:layout_weight="2"
            android:gravity="center"
            android:layout_height="wrap_content"
            android:layout_gravity="center_vertical"
            android:drawablePadding="11.5dp"
            android:text="2020.05.12" />

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center_vertical"
            android:layout_marginLeft="11dp"
            android:layout_marginRight="11dp"
            android:text=" - -" />

        <TextView
            android:id="@+id/tvDateTwo"
            android:layout_width="0dp"
            android:layout_weight="2"
            android:gravity="center"
            android:layout_height="wrap_content"
            android:layout_gravity="center_vertical"
            android:drawablePadding="11.5dp"
            android:text="2020.05.12" />

        <ImageView
            android:id="@+id/ivDown"
            android:layout_width="0dp"
            android:layout_weight="1"
            android:layout_height="wrap_content"
            android:layout_gravity="center_vertical"
            android:src="@mipmap/ic_launcher" />
    </LinearLayout>
</LinearLayout>

 

本文地址：https://blog.csdn.net/Motejia/article/details/107182717