studio - Android API 21-widget de TimePicker
rating bar style android (2)
Puede especificar el selector de tiempo de estilo de giro haciendo que el atributo timePickerMode sea "spinner". El valor predeterminado en Material es "reloj".
<TimePicker
...
android:timePickerMode="spinner" />
Tengo un problema con el widget TimePicker
en API 21. Hasta que API 19, TimePicker
era una lista de arriba / abajo como iOS, pero en 21+ es redondo, como el de la aplicación de calendario.
¿Cómo puedo usar el anterior en 21+, porque rompe mi diseño, si es el nuevo widget?
Puede utilizar el modo de giro mediante programación de la clase personalizada. Para versiones anteriores de lolipop, cambiará el modo del selector de tiempo de reloj a girador y también le permitirá configurar la selección de tiempo deshabilitado después de un tiempo determinado (usando setmax () y setmin ()). En el siguiente código, utilicé set max () para limitar el tiempo máximo.
public class RangeTimePickerDialog extends TimePickerDialog {
private int minHour = -1;
private int minMinute = -1;
private int maxHour = 25;
private int maxMinute = 25;
private int currentHour = 0;
private int currentMinute = 0;
private Calendar calendar = Calendar.getInstance();
private DateFormat dateFormat;
public RangeTimePickerDialog(Context context, int dialogTheme, OnTimeSetListener callBack, int hourOfDay, int minute, boolean is24HourView) {
super(context, callBack, hourOfDay, minute, is24HourView);
currentHour = hourOfDay;
currentMinute = minute;
dateFormat = DateFormat.getTimeInstance(DateFormat.SHORT);
fixSpinner(context, hourOfDay, minute, is24HourView);
try {
Class<?> superclass = getClass().getSuperclass();
Field mTimePickerField = superclass.getDeclaredField("mTimePicker");
mTimePickerField.setAccessible(true);
TimePicker mTimePicker = (TimePicker) mTimePickerField.get(this);
mTimePicker.setOnTimeChangedListener(this);
} catch (NoSuchFieldException e) {
} catch (IllegalArgumentException e) {
} catch (IllegalAccessException e) {
}
}
public void setMin(int hour, int minute) {
minHour = hour;
minMinute = minute;
}
public void setMax(int hour, int minute) {
maxHour = hour;
maxMinute = minute;
}
@Override
public void onTimeChanged(TimePicker view, int hourOfDay, int minute) {
boolean validTime = true;
if (hourOfDay < minHour || (hourOfDay == minHour && minute < minMinute)){
validTime = false;
}
if (hourOfDay > maxHour || (hourOfDay == maxHour && minute > maxMinute)){
validTime = false;
}
if (validTime) {
currentHour = hourOfDay;
currentMinute = minute;
}
updateTime(currentHour, currentMinute);
updateDialogTitle(view, currentHour, currentMinute);
}
private void updateDialogTitle(TimePicker timePicker, int hourOfDay, int minute) {
calendar.set(Calendar.HOUR_OF_DAY, hourOfDay);
calendar.set(Calendar.MINUTE, minute);
String title = dateFormat.format(calendar.getTime());
setTitle(title);
}
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
//two modes are available clock mode and spinner mode ... selecting spinner mode for latest versions
final int MODE_SPINNER = 2;
Class<?> styleableClass = Class.forName("com.android.internal.R$styleable");
Field timePickerStyleableField = styleableClass.getField("TimePicker");
int[] timePickerStyleable = (int[]) timePickerStyleableField.get(null);
final TypedArray a = context.obtainStyledAttributes(null, timePickerStyleable, android.R.attr.timePickerStyle, 0);
Field timePickerModeStyleableField = styleableClass.getField("TimePicker_timePickerMode");
int timePickerModeStyleable = timePickerModeStyleableField.getInt(null);
final int mode = a.getInt(timePickerModeStyleable, MODE_SPINNER);
a.recycle();
if (mode == MODE_SPINNER) {
TimePicker timePicker = (TimePicker) findField(TimePickerDialog.class, TimePicker.class, "mTimePicker").get(this);
Class<?> delegateClass = Class.forName("android.widget.TimePicker$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 {
spinnerDelegateClass = Class.forName("android.widget.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);
}
}
} 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;
}
}