Utils.java
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package com.fourmob.datetimepicker;
import java.util.Calendar;
import android.animation.Keyframe;
import android.animation.ObjectAnimator;
import android.animation.PropertyValuesHolder;
import android.annotation.SuppressLint;
import android.os.Build;
import android.view.View;
import android.view.accessibility.AccessibilityManager;
public class Utils {
public static final int PULSE_ANIMATOR_DURATION = 544;
public static int getDaysInMonth(int month, int year) {
switch (month) {
case Calendar.JANUARY:
case Calendar.MARCH:
case Calendar.MAY:
case Calendar.JULY:
case Calendar.AUGUST:
case Calendar.OCTOBER:
case Calendar.DECEMBER:
return 31;
case Calendar.APRIL:
case Calendar.JUNE:
case Calendar.SEPTEMBER:
case Calendar.NOVEMBER:
return 30;
case Calendar.FEBRUARY:
return (year % 4 == 0) ? 29 : 28;
default:
throw new IllegalArgumentException("Invalid Month");
}
}
public static ObjectAnimator getPulseAnimator(View labelToAnimate, float decreaseRatio, float increaseRatio) {
Keyframe k0 = Keyframe.ofFloat(0f, 1f);
Keyframe k1 = Keyframe.ofFloat(0.275f, decreaseRatio);
Keyframe k2 = Keyframe.ofFloat(0.69f, increaseRatio);
Keyframe k3 = Keyframe.ofFloat(1f, 1f);
PropertyValuesHolder scaleX = PropertyValuesHolder.ofKeyframe("scaleX", k0, k1, k2, k3);
PropertyValuesHolder scaleY = PropertyValuesHolder.ofKeyframe("scaleY", k0, k1, k2, k3);
ObjectAnimator pulseAnimator = ObjectAnimator.ofPropertyValuesHolder(labelToAnimate, scaleX, scaleY);
pulseAnimator.setDuration(PULSE_ANIMATOR_DURATION);
return pulseAnimator;
}
public static boolean isJellybeanOrLater() {
return Build.VERSION.SDK_INT >= 16;
}
/**
* Try to speak the specified text, for accessibility. Only available on JB or later.
* @param text Text to announce.
*/
@SuppressLint("NewApi")
public static void tryAccessibilityAnnounce(View view, CharSequence text) {
if (isJellybeanOrLater() && view != null && text != null) {
view.announceForAccessibility(text);
}
}
public static boolean isTouchExplorationEnabled(AccessibilityManager accessibilityManager) {
if (Build.VERSION.SDK_INT >= 14) {
return accessibilityManager.isTouchExplorationEnabled();
} else {
return false;
}
}
}