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在android中以分钟间隔显示时间选择器

android

在android中以分钟间隔显示时间选择器,android,intervals,android-timepicker,Android,Intervals,Android Timepicker,我的应用程序显示一个TimePickerDialog来设置时间。 我希望timePickerDialog以5分钟的间隔显示分钟数 这适用于以下代码： private final int TIME_PICKER_INTERVAL=5; private boolean mIgnoreEvent=false; … public TimePickerDialogs(Context arg0, OnTimeSetListener callBack, int hourOfDay, int minut

我的应用程序显示一个TimePickerDialog来设置时间。 我希望timePickerDialog以5分钟的间隔显示分钟数

这适用于以下代码：

private final int TIME_PICKER_INTERVAL=5;
private boolean mIgnoreEvent=false;
…
    public TimePickerDialogs(Context arg0, OnTimeSetListener callBack, int hourOfDay, int minute, boolean is24HourView) {
    super(arg0, callBack, hourOfDay, minute, is24HourView);

    formato=Statics.formato;
}

@Override
public void onTimeChanged(TimePicker view, int hourOfDay, int minute) {
    //super.onTimeChanged(arg0, arg1, arg2);

    if (mIgnoreEvent)
        return;
    if (minute%TIME_PICKER_INTERVAL!=0){
        int minuteFloor=minute-(minute%TIME_PICKER_INTERVAL);
        minute=minuteFloor + (minute==minuteFloor+1 ? TIME_PICKER_INTERVAL : 0);
        if (minute==60)
            minute=0;
        mIgnoreEvent=true;
        view.setCurrentMinute(minute);
        mIgnoreEvent=false;
    }
}
虽然间隔为五分钟时只能选择分钟，但timepickerdialog如下所示：

不知道分钟数如何显示5分钟的范围，如下图所示：

我已经搜索了，但找不到解决方案。

查看
TimePickerDialog
的代码，它似乎没有给您提供一种直接修改
TimePicker
的方法，然后将其显示给用户，您会看到图片中显示的“错误分钟数”。看

我的建议是创建自己的TimePickerDialog，基于Android的设计。一开始听起来可能让人望而生畏，但是

  • 通过这种方式，您可以根据需要自定义实现，包括初始化
    时间选择器
    值以显示分钟数（如上所述），以及
  • 实际上这并不难，Android TimePickerDialog.java本身只有160行，非常容易管理
    • 正如@anddev84所说，您可以使用自己定制的TimePickerDialog来完成

    但是，请查看您可以找到的源代码：

  • TimePickerDialog是一种帧布局，请参见此。它只包含一个时间选择器
  • TimePicker小部件只是一个线性布局，请参见。您可以看到分钟微调器是一个数字微调器
  • 参考的代码，您会发现它有一个公共方法setDisplayedValues（String[]displayedValues）

    • 因此，有了这些信息，我想您可以简单地自定义自己的时间选择器对话框，并显示有限的分钟。

    使用以下名为
    CustomTimePickerDialog的自定义类，我认为这可以解决您的问题
    

    import java.lang.reflect.Field;
import java.util.ArrayList;
import java.util.List;

import android.app.TimePickerDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.widget.NumberPicker;
import android.widget.TimePicker;

public class CustomTimePickerDialog extends TimePickerDialog {

    private final static int TIME_PICKER_INTERVAL = 5;
    private TimePicker mTimePicker;
    private final OnTimeSetListener mTimeSetListener;

    public CustomTimePickerDialog(Context context, OnTimeSetListener listener,
            int hourOfDay, int minute, boolean is24HourView) {
        super(context, TimePickerDialog.THEME_HOLO_LIGHT, null, hourOfDay,
                minute / TIME_PICKER_INTERVAL, is24HourView);
        mTimeSetListener = listener;
    }

    @Override
    public void updateTime(int hourOfDay, int minuteOfHour) {
        mTimePicker.setCurrentHour(hourOfDay);
        mTimePicker.setCurrentMinute(minuteOfHour / TIME_PICKER_INTERVAL);
    }

    @Override
    public void onClick(DialogInterface dialog, int which) {
        switch (which) {
            case BUTTON_POSITIVE:
                if (mTimeSetListener != null) {
                    mTimeSetListener.onTimeSet(mTimePicker, mTimePicker.getCurrentHour(),
                            mTimePicker.getCurrentMinute() * TIME_PICKER_INTERVAL);
                }
                break;
            case BUTTON_NEGATIVE:
                cancel();
                break;
        }
    }

    @Override
    public void onAttachedToWindow() {
        super.onAttachedToWindow();
        try {
            Class<?> classForid = Class.forName("com.android.internal.R$id");
            Field timePickerField = classForid.getField("timePicker");
            mTimePicker = (TimePicker) findViewById(timePickerField.getInt(null));
            Field field = classForid.getField("minute");

            NumberPicker minuteSpinner = (NumberPicker) mTimePicker
                .findViewById(field.getInt(null));
            minuteSpinner.setMinValue(0);
            minuteSpinner.setMaxValue((60 / TIME_PICKER_INTERVAL) - 1);
            List<String> displayedValues = new ArrayList<>();
            for (int i = 0; i < 60; i += TIME_PICKER_INTERVAL) {
                displayedValues.add(String.format("%02d", i));
            }
            minuteSpinner.setDisplayedValues(displayedValues
                    .toArray(new String[displayedValues.size()]));
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

    

    import java.lang.reflect.Field；
导入java.util.ArrayList；
导入java.util.List；
导入android.app.TimePickerDialog；
导入android.content.Context；
导入android.content.DialogInterface；
导入android.widget.NumberPicker；
导入android.widget.TimePicker；
公共类CustomTimePickerDialog扩展了TimePickerDialog{
专用最终静态整数时间选择器间隔=5；
私人时间选择器；
私有最终OnTimeSetListener MTTimeSetListener；
公共CustomTimePickerDialog（上下文上下文、OnTimeSetListener侦听器、，
int hourOfDay，int minute，布尔值为24小时视图）{
super（上下文，TimePickerDialog.THEME\u HOLO\u LIGHT，null，hourOfDay，
分钟/时间\u选择器\u间隔，IS24小时视图）；
mTimeSetListener=监听器；
}
@凌驾
public void updateTime（inthourofday，intminuteofhour）{
mTimePicker.setCurrentHour（hourOfDay）；
mTimePicker.setCurrentMinute（小时分钟/时间\u选择器\u间隔）；
}
@凌驾
public void onClick（DialogInterface dialog，int which）{
开关（哪个）{
外壳按钮_正极：
如果（mTimeSetListener！=null）{
mTimeSetListener.onTimeSet（mTimePicker，mTimePicker.getCurrentHour（），
mTimePicker.getCurrentMinute（）*时间\u选取器\u间隔）；
}
打破
外壳按钮\u负片：
取消（）；
打破
}
}
@凌驾
公共空间和附加的Towindow（）{
super.onAttachedToWindow（）；
试一试{
Class classForid=Class.forName（“com.android.internal.R$id”）；
Field timePickerField=classForid.getField（“timePicker”）；
mTimePicker=（TimePicker）findviewbyd（timePickerField.getInt（null））；
Field=classForid.getField（“分钟”）；
NumberPicker分钟数Pinner=（NumberPicker）mTimePicker
.findviewbyd（field.getInt（null））；
minuteSpinner.setMinValue（0）；
minuteSpinner.setMaxValue（（60次/选择器间隔）-1）；
List displayedValues=new ArrayList（）；
对于（int i=0；i<60；i+=时间\u选择器\u间隔）{
displayedValues.add（String.format（“%02d”，i））；
}
minuteSpinner.setDisplayedValues（displayedValues
.toArray（新字符串[displayedValues.size（）]）；
}捕获（例外e）{
e、 printStackTrace（）；
}
}
}

    
这是演示屏幕截图
    

    基于上述Tanmay Mandal的回答，我为TimePicker小部件（而不是TimePickerDialog）实现了一个解决方案。这里的技巧是用活动布局中的原始TimePicker元素替换LinearLayout元素，以便以编程方式添加自定义TimePicker。见下例：
    

    import java.lang.reflect.Field;
import java.util.ArrayList;
import java.util.List;

import android.content.Context;
import android.widget.NumberPicker;
import android.widget.TimePicker;

public class MyTimePicker extends TimePicker {

  private static final int TIME_PICKER_INTERVAL = 5;

    public MyTimePicker(Context context) {
        super(context);
    }

    @Override
    public Integer getCurrentMinute() {
        return super.getCurrentMinute()*TIME_PICKER_INTERVAL;
    }

    @Override
    protected void onAttachedToWindow() {
        super.onAttachedToWindow();

        try {
            Class<?> classForid = Class.forName("com.android.internal.R$id");
            Field field = classForid.getField("minute");

            NumberPicker mMinuteSpinner = (NumberPicker) findViewById(field.getInt(null));
            mMinuteSpinner.setMinValue(0);
            mMinuteSpinner.setMaxValue((60 / TIME_PICKER_INTERVAL) - 1);
            List<String> displayedValues = new ArrayList<String>();
            for (int i = 0; i < 60; i += TIME_PICKER_INTERVAL)
                displayedValues.add(String.format("%02d", i));
             mMinuteSpinner.setDisplayedValues(displayedValues.toArray(new String[0]));     
        } catch (Exception e) {
        e.printStackTrace();
    }

   }

}

    

    如果你不习惯在android 5+中使用相同的时间选择器（而不是时钟）对话框，只需更改主题即可。您可以直接在构造函数中更改：
    

     public CustomTimePickerDialog(Context context, OnTimeSetListener callBack, int hourOfDay, int minute, boolean is24HourView, int time_interval) {
        super(context, TimePickerDialog.THEME_HOLO_LIGHT, callBack, hourOfDay, minute / time_interval, is24HourView);
        this.TIME_PICKER_INTERVAL = time_interval;
        this.callback = callBack;
    }

    

    我对上面的优秀答案做了补充。它的问题是，至少在某些版本的Android中，当您更改所选时间时，它会用错误的时间值替换对话框标题。您不能重写有问题的方法updateTitle（），但可以在onTimeChanged（）处截获调用，而不调用super或使用固定参数调用它
    
我键入了setTitle（）方法是否是用非零字符串ID调用的，但是您可以为布尔值本身或其他任何东西使用getter/setter
    

    @Override
public void onTimeChanged(TimePicker view, int hourOfDay, int minute)
{
    if (autoTitle)
    {
        // Super will call a private updateTitle() method, so lets make
        // sure it has the right minute value.
        super.onTimeChanged(view, hourOfDay, minute * TIME_PICKER_INTERVAL);
    }
    else
    {
        // do nothing
    }
}

@Override
public void setTitle(int id)
{
    super.setTitle(id);
    autoTitle = (id == 0);
}

...

private boolean autoTitle = true;

    

    挣扎了30分钟的时间间隔超过了一个小时。如果看不到@Lee的评论，可能会更加挣扎。因此，只需发布间隔30分钟的完整对话代码：
    

    public class IntervalTimePickerDialog extends TimePickerDialog {
    private static final String TAG = "IntervalPickerDialog";

    private final static int TIME_PICKER_INTERVAL = 30;
    private TimePicker timePicker;
    private final OnTimeSetListener callback;

    private int lastHour = -1;
    private int lastMinute = -1;

    public IntervalTimePickerDialog(Context context, int themeId, OnTimeSetListener callBack,
                                    int hourOfDay, int minute, boolean is24HourView) {
        super(context, themeId, callBack, hourOfDay, minute / TIME_PICKER_INTERVAL,
                is24HourView);
        lastHour = hourOfDay;
        lastMinute = minute;
        this.callback = callBack;
    }

    @Override
    public void onClick(DialogInterface dialog, int which) {
        if (callback != null && timePicker != null) {
            timePicker.clearFocus();
            callback.onTimeSet(timePicker, timePicker.getCurrentHour(),
                    timePicker.getCurrentMinute() * TIME_PICKER_INTERVAL);
        }
    }

    @Override
    protected void onStop() {
    }

    @Override
    public void onAttachedToWindow() {
        super.onAttachedToWindow();
        try {
            Class<?> classForid = Class.forName("com.android.internal.R$id");
            Field timePickerField = classForid.getField("timePicker");
            this.timePicker = (TimePicker) findViewById(timePickerField.getInt(null));
            Field field = classForid.getField("minute");

            NumberPicker mMinuteSpinner = (NumberPicker) timePicker.findViewById(field.getInt(null));
            mMinuteSpinner.setMinValue(0);
            mMinuteSpinner.setMaxValue((60 / TIME_PICKER_INTERVAL) - 1);
            List<String> displayedValues = new ArrayList<>();
            for (int i = 0; i < 60; i += TIME_PICKER_INTERVAL) {
                displayedValues.add(String.format("%02d", i));
            }
            mMinuteSpinner.setDisplayedValues(displayedValues.toArray(new String[0]));
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    @Override
    public void onTimeChanged(TimePicker view, int hourOfDay, int minute) {
        super.onTimeChanged(view, hourOfDay, minute);
        if (lastHour != hourOfDay && lastMinute != minute) {
            view.setCurrentHour(lastHour);
            lastMinute = minute;
        } else {
            lastHour = hourOfDay;
            lastMinute = minute;
        }
    }

    

    公共类IntervalTimePickerDialog扩展了TimePickerDialog{
私有静态最终字符串标记=“IntervalPickerDialog”；
专用最终静态整数时间选择器间隔=30；
私人时间选择器；
普里瓦特

    @Override
public void onTimeChanged(TimePicker view, int hourOfDay, int minute)
{
    if (autoTitle)
    {
        // Super will call a private updateTitle() method, so lets make
        // sure it has the right minute value.
        super.onTimeChanged(view, hourOfDay, minute * TIME_PICKER_INTERVAL);
    }
    else
    {
        // do nothing
    }
}

@Override
public void setTitle(int id)
{
    super.setTitle(id);
    autoTitle = (id == 0);
}

...

private boolean autoTitle = true;

    

    public class IntervalTimePickerDialog extends TimePickerDialog {
    private static final String TAG = "IntervalPickerDialog";

    private final static int TIME_PICKER_INTERVAL = 30;
    private TimePicker timePicker;
    private final OnTimeSetListener callback;

    private int lastHour = -1;
    private int lastMinute = -1;

    public IntervalTimePickerDialog(Context context, int themeId, OnTimeSetListener callBack,
                                    int hourOfDay, int minute, boolean is24HourView) {
        super(context, themeId, callBack, hourOfDay, minute / TIME_PICKER_INTERVAL,
                is24HourView);
        lastHour = hourOfDay;
        lastMinute = minute;
        this.callback = callBack;
    }

    @Override
    public void onClick(DialogInterface dialog, int which) {
        if (callback != null && timePicker != null) {
            timePicker.clearFocus();
            callback.onTimeSet(timePicker, timePicker.getCurrentHour(),
                    timePicker.getCurrentMinute() * TIME_PICKER_INTERVAL);
        }
    }

    @Override
    protected void onStop() {
    }

    @Override
    public void onAttachedToWindow() {
        super.onAttachedToWindow();
        try {
            Class<?> classForid = Class.forName("com.android.internal.R$id");
            Field timePickerField = classForid.getField("timePicker");
            this.timePicker = (TimePicker) findViewById(timePickerField.getInt(null));
            Field field = classForid.getField("minute");

            NumberPicker mMinuteSpinner = (NumberPicker) timePicker.findViewById(field.getInt(null));
            mMinuteSpinner.setMinValue(0);
            mMinuteSpinner.setMaxValue((60 / TIME_PICKER_INTERVAL) - 1);
            List<String> displayedValues = new ArrayList<>();
            for (int i = 0; i < 60; i += TIME_PICKER_INTERVAL) {
                displayedValues.add(String.format("%02d", i));
            }
            mMinuteSpinner.setDisplayedValues(displayedValues.toArray(new String[0]));
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    @Override
    public void onTimeChanged(TimePicker view, int hourOfDay, int minute) {
        super.onTimeChanged(view, hourOfDay, minute);
        if (lastHour != hourOfDay && lastMinute != minute) {
            view.setCurrentHour(lastHour);
            lastMinute = minute;
        } else {
            lastHour = hourOfDay;
            lastMinute = minute;
        }
    }

    

    public class CustomTimePickerDialog extends TimePickerDialog {

private final static int TIME_PICKER_INTERVAL = 15;
private TimePicker timePicker;
private final OnTimeSetListener callback;

  public HorekoTimePicker(Context context,
        OnTimeSetListener callBack, int hourOfDay, int minute, boolean is24HourView) {
      super(context, callBack, hourOfDay, minute/TIME_PICKER_INTERVAL, is24HourView);
      this.callback = callBack;
    fixSpinner(context, hourOfDay, minute, is24HourView);
  }

/**
 * Workaround for this bug: https://code.google.com/p/android/issues/detail?id=222208
 * In Android 7.0 Nougat, spinner mode for the TimePicker in TimePickerDialog is
 * incorrectly displayed as clock, even when the theme specifies otherwise, such as:
 *
 *  <resources>
 *      <style name="Theme.MyApp" parent="Theme.AppCompat.Light.NoActionBar">
 *          <item name="android:timePickerStyle">@style/Widget.MyApp.TimePicker</item>
 *      </style>
 *
 *      <style name="Widget.MyApp.TimePicker" parent="android:Widget.Material.TimePicker">
 *          <item name="android:timePickerMode">spinner</item>
 *      </style>
 *  </resources>
 *
 * May also pass TimePickerDialog.THEME_HOLO_LIGHT as an argument to the constructor,
 * as this theme has the TimePickerMode set to spinner.
 *
 * Taken from: https://gist.github.com/jeffdgr8/6bc5f990bf0c13a7334ce385d482af9f
 */
private void fixSpinner(Context context, int hourOfDay, int minute, boolean is24HourView) {
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) { // android:timePickerMode spinner and clock began in Lollipop
        try {

            // Get the theme's android:timePickerMode
            final int MODE_SPINNER = 1;
            Class<?> styleableClass = Class.forName("com.android.internal.R$styleable");
            Field timePickerStyleableField = styleableClass.getField("TimePicker");
            int[] timePickerStyleable = (int[]) timePickerStyleableField.get(null);
            final TypedArray a = context.obtainStyledAttributes(null, timePickerStyleable, android.R.attr.timePickerStyle, 0);
            Field timePickerModeStyleableField = styleableClass.getField("TimePicker_timePickerMode");
            int timePickerModeStyleable = timePickerModeStyleableField.getInt(null);
            final int mode = a.getInt(timePickerModeStyleable, MODE_SPINNER);
            a.recycle();

            if (mode == MODE_SPINNER) {

                timePicker = (TimePicker) findField(TimePickerDialog.class, TimePicker.class, "mTimePicker").get(this);
                Class<?> delegateClass = Class.forName("android.widget.TimePicker$TimePickerDelegate");
                Field delegateField = findField(TimePicker.class, delegateClass, "mDelegate");
                Object delegate = delegateField.get(timePicker);
                Class<?> spinnerDelegateClass;
                if (Build.VERSION.SDK_INT != Build.VERSION_CODES.LOLLIPOP) {
                    spinnerDelegateClass = Class.forName("android.widget.TimePickerSpinnerDelegate");
                } else {
                    // TimePickerSpinnerDelegate was initially misnamed TimePickerClockDelegate in API 21!
                    spinnerDelegateClass = Class.forName("android.widget.TimePickerClockDelegate");
                }

                // In 7.0 Nougat for some reason the timePickerMode is ignored and the delegate is TimePickerClockDelegate
                if (delegate.getClass() != spinnerDelegateClass) {
                    delegateField.set(timePicker, null); // throw out the TimePickerClockDelegate!
                    timePicker.removeAllViews(); // remove the TimePickerClockDelegate views
                    Constructor spinnerDelegateConstructor = spinnerDelegateClass.getConstructor(TimePicker.class, Context.class, AttributeSet.class, int.class, int.class);
                    spinnerDelegateConstructor.setAccessible(true);
                    // Instantiate a TimePickerSpinnerDelegate
                    delegate = spinnerDelegateConstructor.newInstance(timePicker, context, null, android.R.attr.timePickerStyle, 0);
                    delegateField.set(timePicker, delegate); // set the TimePicker.mDelegate to the spinner delegate
                    // Set up the TimePicker again, with the TimePickerSpinnerDelegate
                    timePicker.setIs24HourView(is24HourView);
                    timePicker.setCurrentHour(hourOfDay);
                    timePicker.setCurrentMinute(minute);
                    timePicker.setOnTimeChangedListener(this);
                }

                setTimeIntervals();
            }

        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }
}

private static Field findField(Class objectClass, Class fieldClass, String expectedName) {
    try {
        Field field = objectClass.getDeclaredField(expectedName);
        field.setAccessible(true);
        return field;
    } catch (NoSuchFieldException e) {} // ignore
    // search for it if it wasn't found under the expected ivar name
    for (Field searchField : objectClass.getDeclaredFields()) {
        if (searchField.getType() == fieldClass) {
            searchField.setAccessible(true);
            return searchField;
        }
    }
    return null;
}

  @Override
protected void onStop() { }

/*
 * Feature #363: (Un)availability times in 15min interval
 * https://abix.webhop.net/redmine/issues/363
 * Solution extracted from
 * http://stackoverflow.com/questions/20214547/show-timepicker-with-minutes-intervals-in-android
 */

@Override
public void onClick(DialogInterface dialog, int which) {
    super.onClick(dialog, which);

    if (callback != null && timePicker != null) {
        timePicker.clearFocus();
        callback.onTimeSet(timePicker, timePicker.getCurrentHour(),
            timePicker.getCurrentMinute()*TIME_PICKER_INTERVAL);
    }
}

private void setTimeIntervals() {
    try {
        Class<?> classForid = Class.forName("com.android.internal.R$id");
        Field field = classForid.getField("minute");

        NumberPicker mMinuteSpinner = (NumberPicker) timePicker.findViewById(field.getInt(null));
        mMinuteSpinner.setMinValue(0);
        mMinuteSpinner.setMaxValue((60 / TIME_PICKER_INTERVAL) - 1);
        List<String> displayedValues = new ArrayList<String>();
        for (int i = 0; i < 60; i += TIME_PICKER_INTERVAL) {
            displayedValues.add(String.format("%02d", i));
        }
        mMinuteSpinner.setDisplayedValues(displayedValues.toArray(new String[0]));

    } catch (Exception e) {
        e.printStackTrace();
    }

}

    

    /**
 * Set TimePicker interval by adding a custom minutes list
 *
 * @param timePicker
 */
private void setTimePickerInterval(TimePicker timePicker) {
    try {

        NumberPicker minutePicker = (NumberPicker) timePicker.findViewById(Resources.getSystem().getIdentifier(
                "minute", "id", "android"));
        minutePicker.setMinValue(0);
        minutePicker.setMaxValue((60 / TIME_PICKER_INTERVAL) - 1);
        List<String> displayedValues = new ArrayList<String>();
        for (int i = 0; i < 60; i += TIME_PICKER_INTERVAL) {
            displayedValues.add(String.format("%02d", i));
        }
        minutePicker.setDisplayedValues(displayedValues.toArray(new String[0]));
    } catch (Exception e) {
        Log.e(TAG, "Exception: " + e);
    }
}