/*
* Copyright (C) 2016 J. Oliveira
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.alexive.graphicalutils.view;
import android.animation.Animator;
import android.animation.AnimatorListenerAdapter;
import android.annotation.SuppressLint;
import android.content.Context;
import android.graphics.drawable.Drawable;
import android.os.Build;
import android.util.Log;
import android.view.View;
import android.view.ViewAnimationUtils;
import android.view.ViewPropertyAnimator;
/**
* Transforms plenty of methods (that usually require chiecking the sdk version, etc)
* to a single line method call.
*/
public class ViewUtils {
/**
* Set the background to a given view, or remove it.
* @param view The given view.
* @param drawable The Drawable to be set as the background, or null to remove
* the view's background.
* @see View#setBackground(Drawable)
*/
public static void setBackgroundDrawable(View view, Drawable drawable){
if (Build.VERSION.SDK_INT >= 16)
view.setBackground(drawable);
else
view.setBackgroundDrawable(drawable);
}
/**
* Sets the view visibility as {@link View#GONE} with an animation.
* @param view The view to animate/set as GONE.
*/
public static void animateSetViewVisibilityGone(final View view){
if (view.getVisibility() == View.GONE)
return;
if (Build.VERSION.SDK_INT < 12)
view.setVisibility(View.GONE);
else {
ViewPropertyAnimator animator = view.animate();
// animator.cancel(); //Only on API 14 cuz of this!
animator.setListener(new Animator.AnimatorListener() {
@Override
public void onAnimationStart(Animator animation) {
}
@SuppressLint("NewApi")
@Override
public void onAnimationEnd(Animator animation) {
view.setVisibility(View.GONE);
view.setScaleX(0);
view.setScaleY(0);
}
@Override
public void onAnimationCancel(Animator animation) {
onAnimationEnd(animation);
}
@Override
public void onAnimationRepeat(Animator animation) {
}
});
animator.scaleX(0).scaleY(0);
}
}
/**
* Sets the view's visibility as {@link View#VISIBLE} with an animation.
* @param view The view to animate and set visible.
*/
public static void animateSetViewVisibilityVisible(final View view){
if (view.getVisibility() == View.VISIBLE)
return;
if (Build.VERSION.SDK_INT < 12){
view.setVisibility(View.VISIBLE);
}else {
ViewPropertyAnimator animator = view.animate();
// animator.cancel(); //Only on API 14 cuz of this!
animator.setListener(new Animator.AnimatorListener() {
@Override
public void onAnimationStart(Animator animation) {
view.setVisibility(View.VISIBLE);
//The view is hidden if animateSetViewVisibilityGone has
//been called before
}
@Override
public void onAnimationEnd(Animator animation) {
onAnimationCancel(animation);
}
@SuppressLint("NewApi")
@Override
public void onAnimationCancel(Animator animation) {
view.setVisibility(View.VISIBLE);
view.setScaleX(1);
view.setScaleY(1);
}
@Override
public void onAnimationRepeat(Animator animation) {
}
});
animator.scaleX(1).scaleY(1);
}
}
public static void createCircularReveal(View view, int cx, int cy, int radius){
if (Build.VERSION.SDK_INT < 21){
animateSetViewVisibilityVisible(view);
return;
}else {
view.setVisibility(View.VISIBLE);
//Clear traces from animateSetViewVisibility*
if (Build.VERSION.SDK_INT >= 12) {
view.setScaleY(1);
view.setScaleX(1);
}
// get the center for the clipping circle
// get the final radius for the clipping circle
Log.e("ViewUtils", "finalRadius = " + radius);
// create the animator for this view (the start radius is zero)
try {
Animator anim =
ViewAnimationUtils.createCircularReveal(view, cx, cy, 0, radius);
// make the view visible and start the animation
anim.start();
}catch (IllegalStateException ex){
ex.printStackTrace();
view.setVisibility(View.VISIBLE);
}
}
}
public static void createCircularReveal(View view){
createCircularReveal(view, (view.getLeft() + view.getRight()) / 2,
(view.getTop() + view.getBottom()) / 2,
Math.max(view.getWidth(), view.getHeight()));
}
public static void createCircularRevealInverse(final View view,
int cx,
int cy,
int initialRadius,
final boolean setAsGone){
if (Build.VERSION.SDK_INT < 21){
if (setAsGone)
animateSetViewVisibilityGone(view);
else
view.setVisibility(View.INVISIBLE);
}else{
view.setVisibility(View.VISIBLE);
if (Build.VERSION.SDK_INT >= 12) {
view.setScaleY(1);
view.setScaleX(1);
}
try {
// create the animation (the final radius is zero)
Animator anim =
ViewAnimationUtils.createCircularReveal(view, cx, cy, initialRadius, 0);
// make the view invisible when the animation is done
anim.addListener(new AnimatorListenerAdapter() {
@Override
public void onAnimationEnd(Animator animation) {
super.onAnimationEnd(animation);
view.setVisibility(setAsGone ? View.GONE : View.INVISIBLE);
}
});
// start the animation
anim.start();
}catch (IllegalStateException ex) {
ex.printStackTrace();
view.setVisibility(setAsGone ? View.GONE : View.INVISIBLE);
}
}
}
public static void createCircularRevealInverse(final View view, final boolean setAsGone){
createCircularRevealInverse(view,
(view.getLeft() + view.getRight()) / 2,
(view.getTop() + view.getBottom()) / 2,
view.getWidth(),
setAsGone);
}
public static int convertDPtoPixels(Context c, int dp){
float scale = c.getResources().getDisplayMetrics().density;
return (int) (dp * scale + 0.5f);
}
}
