package com.xdroid.animation.anim;
import java.util.ArrayList;
import java.util.List;
import com.xdroid.animation.utils.SvgHelper;
import android.animation.Animator;
import android.animation.ObjectAnimator;
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.graphics.Path;
import android.util.AttributeSet;
import android.util.Log;
import android.view.View;
import android.view.animation.Interpolator;
/**
* PathView is an View that animate paths.
*/
public class SvgAnimationView extends View {
/**
* Logging tag.
*/
public static final String LOG_TAG = "PathView";
/**
* The paint for the path.
*/
private Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
/**
* Utils to catch the paths from the svg.
*/
private final SvgHelper svgUtils = new SvgHelper(paint);
/**
* All the paths provided to the view. Both from Path and Svg.
*/
private List<SvgHelper.SvgPath> paths = new ArrayList<SvgHelper.SvgPath>(0);
/**
* This is a lock before the view is redrawn
* or resided it must be synchronized with this object.
*/
private final Object mSvgLock = new Object();
/**
* Thread for working with the object above.
*/
private Thread mLoader;
/**
* The svg image from the raw directory.
*/
private int svgResourceId;
/**
* Object that build the animation for the path.
*/
private AnimatorBuilder animatorBuilder;
/**
* The progress of the drawing.
*/
private float progress = 0f;
/**
* If the used colors are from the svg or from the set color.
*/
private boolean naturalColors;
/**
* If the view is filled with its natural colors after path drawing.
*/
private boolean fillAfter;
/**
* The width of the view.
*/
private int width;
/**
* The height of the view.
*/
private int height;
/**
* Default constructor.
*
* @param context The Context of the application.
*/
public SvgAnimationView(Context context) {
this(context, null);
}
/**
* Default constructor.
*
* @param context The Context of the application.
* @param attrs attributes provided from the resources.
*/
public SvgAnimationView(Context context, AttributeSet attrs) {
this(context, attrs, 0);
}
/**
* Default constructor.
*
* @param context The Context of the application.
* @param attrs attributes provided from the resources.
* @param defStyle Default style.
*/
public SvgAnimationView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
paint.setStyle(Paint.Style.STROKE);
getFromAttributes(context, attrs);
}
/**
* Get all the fields from the attributes .
*
* @param context The Context of the application.
* @param attrs attributes provided from the resources.
*/
private void getFromAttributes(Context context, AttributeSet attrs) {
/*final TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.PathView);
try {
if (a != null) {
paint.setColor(a.getColor(R.styleable.PathView_pathColor, 0xff00ff00));
paint.setStrokeWidth(a.getFloat(R.styleable.PathView_pathWidth, 8.0f));
svgResourceId = a.getResourceId(R.styleable.PathView_svg, 0);
}
} finally {
if (a != null) {
a.recycle();
}
}*/
paint.setColor(0xff00ff00);
paint.setStrokeWidth(8.0f);
svgResourceId =0;
}
/**
* Set paths to be drawn and animated.
*
* @param paths - Paths that can be drawn.
*/
public void setPaths(final List<Path> paths) {
for (Path path : paths) {
this.paths.add(new SvgHelper.SvgPath(path, paint));
}
synchronized (mSvgLock) {
updatePathsPhaseLocked();
}
}
/**
* Set path to be drawn and animated.
*
* @param path - Paths that can be drawn.
*/
public void setPath(final Path path) {
paths.add(new SvgHelper.SvgPath(path, paint));
synchronized (mSvgLock) {
updatePathsPhaseLocked();
}
}
/**
* Animate this property. It is the percentage of the path that is drawn.
* It must be [0,1].
*
* @param percentage float the percentage of the path.
*/
public void setPercentage(float percentage) {
if (percentage < 0.0f || percentage > 1.0f) {
throw new IllegalArgumentException("setPercentage not between 0.0f and 1.0f");
}
progress = percentage;
synchronized (mSvgLock) {
updatePathsPhaseLocked();
}
invalidate();
}
/**
* This refreshes the paths before draw and resize.
*/
private void updatePathsPhaseLocked() {
final int count = paths.size();
for (int i = 0; i < count; i++) {
SvgHelper.SvgPath svgPath = paths.get(i);
svgPath.path.reset();
svgPath.measure.getSegment(0.0f, svgPath.length * progress, svgPath.path, true);
// Required only for Android 4.4 and earlier
svgPath.path.rLineTo(0.0f, 0.0f);
}
}
@Override
protected void onDraw(Canvas canvas) {
super.onDraw(canvas);
synchronized (mSvgLock) {
canvas.save();
canvas.translate(getPaddingLeft(), getPaddingTop());
final int count = paths.size();
for (int i = 0; i < count; i++) {
final SvgHelper.SvgPath svgPath = paths.get(i);
final Path path = svgPath.path;
final Paint paint1 = naturalColors ? svgPath.paint : paint;
canvas.drawPath(path, paint1);
}
fillAfter(canvas);
canvas.restore();
}
}
/**
* If there is svg , the user called setFillAfter(true) and the progress is finished.
*
* @param canvas Draw to this canvas.
*/
private void fillAfter(final Canvas canvas) {
if (svgResourceId != 0 && fillAfter && progress == 1f) {
svgUtils.drawSvgAfter(canvas, width, height);
}
}
@Override
protected void onSizeChanged(final int w, final int h, int oldw, int oldh) {
super.onSizeChanged(w, h, oldw, oldh);
if (mLoader != null) {
try {
mLoader.join();
} catch (InterruptedException e) {
Log.e(LOG_TAG, "Unexpected error", e);
}
}
if (svgResourceId != 0) {
mLoader = new Thread(new Runnable() {
@Override
public void run() {
svgUtils.load(getContext(), svgResourceId);
synchronized (mSvgLock) {
width = w - getPaddingLeft() - getPaddingRight();
height = h - getPaddingTop() - getPaddingBottom();
paths = svgUtils.getPathsForViewport(width, height);
updatePathsPhaseLocked();
}
}
}, "SVG Loader");
mLoader.start();
}
}
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
if (svgResourceId != 0) {
int widthSize = MeasureSpec.getSize(widthMeasureSpec);
int heightSize = MeasureSpec.getSize(heightMeasureSpec);
setMeasuredDimension(widthSize, heightSize);
return;
}
int desiredWidth = 0;
int desiredHeight = 0;
final float strokeWidth = paint.getStrokeWidth() / 2;
for (SvgHelper.SvgPath path : paths) {
desiredWidth += path.bounds.left + path.bounds.width() + strokeWidth;
desiredHeight += path.bounds.top + path.bounds.height() + strokeWidth;
}
int widthSize = MeasureSpec.getSize(widthMeasureSpec);
int heightSize = MeasureSpec.getSize(heightMeasureSpec);
int widthMode = MeasureSpec.getMode(widthMeasureSpec);
int heightMode = MeasureSpec.getMode(widthMeasureSpec);
int measuredWidth, measuredHeight;
if (widthMode == MeasureSpec.AT_MOST) {
measuredWidth = desiredWidth;
} else {
measuredWidth = widthSize;
}
if (heightMode == MeasureSpec.AT_MOST) {
measuredHeight = desiredHeight;
} else {
measuredHeight = heightSize;
}
setMeasuredDimension(measuredWidth, measuredHeight);
}
/**
* If the real svg need to be drawn after the path animation.
*
* @param fillAfter - boolean if the view needs to be filled after path animation.
*/
public void setFillAfter(final boolean fillAfter) {
this.fillAfter = fillAfter;
}
/**
* If you want to use the colors from the svg.
*/
public void useNaturalColors() {
naturalColors = true;
}
/**
* Animator for the paths of the view.
*
* @return The AnimatorBuilder to build the animation.
*/
public AnimatorBuilder getPathAnimator() {
if (animatorBuilder == null) {
animatorBuilder = new AnimatorBuilder(this);
}
return animatorBuilder;
}
/**
* Get the path color.
*
* @return The color of the paint.
*/
public int getPathColor() {
return paint.getColor();
}
/**
* Set the path color.
*
* @param color -The color to set to the paint.
*/
public void setPathColor(final int color) {
paint.setColor(color);
}
/**
* Get the path width.
*
* @return The width of the paint.
*/
public float getPathWidth() {
return paint.getStrokeWidth();
}
/**
* Set the path width.
*
* @param width - The width of the path.
*/
public void setPathWidth(final float width) {
paint.setStrokeWidth(width);
}
/**
* Get the svg resource id.
*
* @return The svg raw resource id.
*/
public int getSvgResource() {
return svgResourceId;
}
/**
* Set the svg resource id.
*
* @param svgResource - The resource id of the raw svg.
*/
public void setSvgResource(int svgResource) {
svgResourceId = svgResource;
}
/**
* Object for building the animation of the path of this view.
*/
public static class AnimatorBuilder {
/**
* Duration of the animation.
*/
private int duration = 350;
/**
* Interpolator for the time of the animation.
*/
private Interpolator interpolator;
/**
* The delay before the animation.
*/
private int delay = 0;
/**
* ObjectAnimator that constructs the animation.
*/
private final ObjectAnimator anim;
/**
* Listener called before the animation.
*/
private ListenerStart listenerStart;
/**
* Listener after the animation.
*/
private ListenerEnd animationEnd;
/**
* Animation listener.
*/
private PathViewAnimatorListener pathViewAnimatorListener;
/**
* Default constructor.
*
* @param pathView The view that must be animated.
*/
public AnimatorBuilder(final SvgAnimationView pathView) {
anim = ObjectAnimator.ofFloat(pathView, "percentage", 0.0f, 1.0f);
}
/**
* Set the duration of the animation.
*
* @param duration - The duration of the animation.
* @return AnimatorBuilder.
*/
public AnimatorBuilder duration(final int duration) {
this.duration = duration;
return this;
}
/**
* Set the Interpolator.
*
* @param interpolator - Interpolator.
* @return AnimatorBuilder.
*/
public AnimatorBuilder interpolator(final Interpolator interpolator) {
this.interpolator = interpolator;
return this;
}
/**
* The delay before the animation.
*
* @param delay - int the delay
* @return AnimatorBuilder.
*/
public AnimatorBuilder delay(final int delay) {
this.delay = delay;
return this;
}
/**
* Set a listener before the start of the animation.
*
* @param listenerStart an interface called before the animation
* @return AnimatorBuilder.
*/
public AnimatorBuilder listenerStart(final ListenerStart listenerStart) {
this.listenerStart = listenerStart;
if (pathViewAnimatorListener == null) {
pathViewAnimatorListener = new PathViewAnimatorListener();
anim.addListener(pathViewAnimatorListener);
}
return this;
}
/**
* Set a listener after of the animation.
*
* @param animationEnd an interface called after the animation
* @return AnimatorBuilder.
*/
public AnimatorBuilder listenerEnd(final ListenerEnd animationEnd) {
this.animationEnd = animationEnd;
if (pathViewAnimatorListener == null) {
pathViewAnimatorListener = new PathViewAnimatorListener();
anim.addListener(pathViewAnimatorListener);
}
return this;
}
/**
* Starts the animation.
*/
public void start() {
anim.setDuration(duration);
anim.setInterpolator(interpolator);
anim.setStartDelay(delay);
anim.start();
}
/**
* Animation listener to be able to provide callbacks for the caller.
*/
private class PathViewAnimatorListener implements Animator.AnimatorListener {
@Override
public void onAnimationStart(Animator animation) {
if (listenerStart != null) listenerStart.onAnimationStart();
}
@Override
public void onAnimationEnd(Animator animation) {
if (animationEnd != null) animationEnd.onAnimationEnd();
}
@Override
public void onAnimationCancel(Animator animation) {
}
@Override
public void onAnimationRepeat(Animator animation) {
}
}
/**
* Called when the animation start.
*/
public interface ListenerStart {
/**
* Called when the path animation start.
*/
void onAnimationStart();
}
/**
* Called when the animation end.
*/
public interface ListenerEnd {
/**
* Called when the path animation end.
*/
void onAnimationEnd();
}
}
}