• Android滑动选择的日期选择框


    效果图如下。

    实现也很简单,使用的是Android的DatePicker控件。AlertDialog实现。

    首先是布局文件:date_picker_dialog.xml

    <?xml version="1.0" encoding="utf-8"?>
    <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:gravity="center_horizontal"
        android:orientation="horizontal"
        android:paddingTop="10dp" >
    
        <LinearLayout
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:gravity="center_horizontal"
            android:orientation="vertical"
            android:padding="5dip" >
    
            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="开始日期" />
    
            <DatePicker
                android:id="@+id/datePickerStart"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:calendarViewShown="false" />
        </LinearLayout>
    
      
    </LinearLayout>

    实现类:DoubleDatePickerDialog.java

    package com.example.doubledatepicker;
    
    import java.lang.reflect.Field;
    
    import android.app.AlertDialog;
    import android.content.Context;
    import android.content.DialogInterface;
    import android.content.DialogInterface.OnClickListener;
    import android.os.Bundle;
    import android.view.LayoutInflater;
    import android.view.View;
    import android.widget.DatePicker;
    import android.widget.DatePicker.OnDateChangedListener;
    
    public class DoubleDatePickerDialog extends AlertDialog implements OnClickListener, OnDateChangedListener {
    
        private static final String START_YEAR = "start_year";
        private static final String END_YEAR = "end_year";
        private static final String START_MONTH = "start_month";
        private static final String END_MONTH = "end_month";
        private static final String START_DAY = "start_day";
        private static final String END_DAY = "end_day";
    
        private final DatePicker mDatePicker_start;  //开始
    
        private final OnDateSetListener mCallBack;
    
        public interface OnDateSetListener {
    
            void onDateSet(DatePicker startDatePicker, int startYear, int startMonthOfYear, int startDayOfMonth);
        }
    
       
        public DoubleDatePickerDialog(Context context, OnDateSetListener callBack, int year, int monthOfYear, int dayOfMonth) {
            this(context, 0, callBack, year, monthOfYear, dayOfMonth);
        }
    
        public DoubleDatePickerDialog(Context context, int theme, OnDateSetListener callBack, int year, int monthOfYear,
                int dayOfMonth) {
            this(context, 0, callBack, year, monthOfYear, dayOfMonth, true);
        }
    
        public DoubleDatePickerDialog(Context context, int theme, OnDateSetListener callBack, int year, int monthOfYear,
                int dayOfMonth, boolean isDayVisible) {
            super(context, theme);
    
            mCallBack = callBack;
    
            Context themeContext = getContext();
            setButton(BUTTON_POSITIVE, "确 定", this);
            setButton(BUTTON_NEGATIVE, "取 消", this);
           
            setIcon(0);
    
            LayoutInflater inflater = (LayoutInflater) themeContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            View view = inflater.inflate(R.layout.date_picker_dialog, null);
            setView(view);
            mDatePicker_start = (DatePicker) view.findViewById(R.id.datePickerStart);
            mDatePicker_start.init(year, monthOfYear, dayOfMonth, this);
    
            if (!isDayVisible) {
                hidDay(mDatePicker_start);
            }
        }
    
        /**
         * 隐藏DatePicker中的日期显示
         * 
         * @param mDatePicker
         */
        private void hidDay(DatePicker mDatePicker) {
            Field[] datePickerfFields = mDatePicker.getClass().getDeclaredFields();
            for (Field datePickerField : datePickerfFields) {
                if ("mDaySpinner".equals(datePickerField.getName())) {
                    datePickerField.setAccessible(true);
                    Object dayPicker = new Object();
                    try {
                        dayPicker = datePickerField.get(mDatePicker);
                    } catch (IllegalAccessException e) {
                        e.printStackTrace();
                    } catch (IllegalArgumentException e) {
                        e.printStackTrace();
                    }
                    ((View) dayPicker).setVisibility(View.GONE);
                }
            }
        }
    
        public void onClick(DialogInterface dialog, int which) {
            if (which == BUTTON_POSITIVE)
                tryNotifyDateSet();
        }
    
        @Override
        public void onDateChanged(DatePicker view, int year, int month, int day) {
            if (view.getId() == R.id.datePickerStart)
                mDatePicker_start.init(year, month, day, this);
        }
    
        /**
         * 获得开始日期的DatePicker
         *
         * @return The calendar view.
         */
        public DatePicker getDatePickerStart() {
            return mDatePicker_start;
        }
    
    
        public void updateStartDate(int year, int monthOfYear, int dayOfMonth) {
            mDatePicker_start.updateDate(year, monthOfYear, dayOfMonth);
        }
    
        public void updateEndDate(int year, int monthOfYear, int dayOfMonth) {
        }
    
        private void tryNotifyDateSet() {
            if (mCallBack != null) {
                mDatePicker_start.clearFocus();
                mCallBack.onDateSet(mDatePicker_start, mDatePicker_start.getYear(), mDatePicker_start.getMonth(),
                        mDatePicker_start.getDayOfMonth());
            }
        }
    
        @Override
        protected void onStop() {
            super.onStop();
        }
    
        @Override
        public Bundle onSaveInstanceState() {
            Bundle state = super.onSaveInstanceState();
            state.putInt(START_YEAR, mDatePicker_start.getYear());
            state.putInt(START_MONTH, mDatePicker_start.getMonth());
            state.putInt(START_DAY, mDatePicker_start.getDayOfMonth());
            return state;
        }
    
        @Override
        public void onRestoreInstanceState(Bundle savedInstanceState) {
            super.onRestoreInstanceState(savedInstanceState);
            int start_year = savedInstanceState.getInt(START_YEAR);
            int start_month = savedInstanceState.getInt(START_MONTH);
            int start_day = savedInstanceState.getInt(START_DAY);
            mDatePicker_start.init(start_year, start_month, start_day, this);
    
            int end_year = savedInstanceState.getInt(END_YEAR);
            int end_month = savedInstanceState.getInt(END_MONTH);
            int end_day = savedInstanceState.getInt(END_DAY);
    
        }
    }

    使用时创建出来对象实现onDateSet方法就可以了。测试类xml文件:activity_main.xml

    <?xml version="1.0" encoding="utf-8"?>
    <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
        android:id="@+id/LinearLayout01"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:orientation="vertical" >
    
        <EditText
            android:id="@+id/et"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:cursorVisible="false"
            android:editable="false" />
    
        <Button
            android:id="@+id/dateBtn"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:text="日期对话框" />
    
    </LinearLayout>

    测试类,MainActivity.java

    package com.example.doubledatepicker;
    
    import java.util.Calendar;
    import android.app.Activity;
    import android.os.Bundle;
    import android.view.View;
    import android.widget.Button;
    import android.widget.DatePicker;
    import android.widget.TextView;
    
    public class MainActivity extends Activity {
    
        Button btn;
        TextView et;
    
        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_main);
    
            btn = (Button) findViewById(R.id.dateBtn);
            et = (TextView) findViewById(R.id.et);
    
            btn.setOnClickListener(new View.OnClickListener() {
                Calendar c = Calendar.getInstance();
    
                @Override
                public void onClick(View v) {
                    new DoubleDatePickerDialog(MainActivity.this, 0, new DoubleDatePickerDialog.OnDateSetListener() {
    
                        @Override
                        public void onDateSet(DatePicker startDatePicker, int startYear, int startMonthOfYear,
                                int startDayOfMonth
                              ) {
                            String textString = String.format("%d-%d-%d
    ", startYear,
                                    startMonthOfYear + 1, startDayOfMonth);
                            et.setText(textString);
                        }
                    }, c.get(Calendar.YEAR), c.get(Calendar.MONTH), c.get(Calendar.DATE), true).show();
                }
            });
        }
    }

    清单文件:有些版本显示的是不同的效果,注意一下sdk版本问题。

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  • 原文地址:https://www.cnblogs.com/yaxiaoke/p/4802359.html
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