I am using Translate Animation for moving an ImageView. I am using this code:
TranslateAnimation set1 = new TranslateAnimation(-4, 10, -110, 0);
set1.setDuration(3000);
TranslateAnimation set2 = new TranslateAnimation(10, -3, 0, 115);
set2.setDuration(3000);
set2.setStartOffset(2200);
TranslateAnimation set3 = new TranslateAnimation(-3, -20, 0, -100);
set3.setDuration(3000);
set3.setStartOffset(4500);
TranslateAnimation set4 = new TranslateAnimation(0, 13, 0, -120);
set4.setDuration(3000);
set4.setStartOffset(6500);
animSet.addAnimation(set1);
animSet.addAnimation(set2);
animSet.addAnimation(set3);
animSet.addAnimation(set4);
animSet.setFillAfter(true);
After creating a set of animations, I apply them on the ImageView like this:
image = (ImageView)findViewById(R.id.img);
image.startAnimation(animSet);
Everything is working fine, but I cannot pause the animation and resume on button click.
How can I do that?
I tried everything, but didn't succeed. Any idea how to do this?
Please help!
After searching for a time i found this link and check is this working for Translate Animation or not and after some modification this is working for your animation too.!
See modified code below:
public class TranslateAnim extends TranslateAnimation{
public TranslateAnim(float fromXDelta, float toXDelta, float fromYDelta,
float toYDelta) {
super(fromXDelta, toXDelta, fromYDelta, toYDelta);
// TODO Auto-generated constructor stub
}
private long mElapsedAtPause=0;
private boolean mPaused=false;
@Override
public boolean getTransformation(long currentTime, Transformation outTransformation) {
if(mPaused && mElapsedAtPause==0) {
mElapsedAtPause=currentTime-getStartTime();
}
if(mPaused)
setStartTime(currentTime-mElapsedAtPause);
return super.getTransformation(currentTime, outTransformation);
}
public void pause() {
mElapsedAtPause=0;
mPaused=true;
}
public void resume() {
mPaused=false;
}
}
I'll only change class name, extends class name and constructor of this class.
you can use it like:
TranslateAnim set1, set2, set3, set4; // objects of TranslateAnim Class
set1 = new TranslateAnim(-4, 10, -110, 0); // initialize all objects like this way
animSet.addAnimation(set1); // add all animation objests in your animation set as you do before
animSet.setFillAfter(true);
and after start your animation you have only call pause and resume methods. Thanks to Johan for share his code with us.
Hope this solve your problem. :)
You can also do like this: а можно еще так:
public class MyTranslateAnimation extends TranslateAnimation {
private long mTimePause, mTimeTotal;
private boolean mPause;
public MyTranslateAnimation(Context context, AttributeSet attrs) {
super(context, attrs);
}
@Override
public boolean getTransformation(long currentTime, Transformation outTransformation) {
updateTime(currentTime);
return super.getTransformation(mTimeTotal - mTimePause, outTransformation);
}
private void updateTime(long currentTime) {
long dt = currentTime - mTimeTotal;
mTimeTotal += dt;
if (mPause) {
mTimePause += dt;
}
}
public void pause() {
mPause = true;
}
public void resume() {
mPause = false;
}
}
To create an animation from an XML, you can create your own AnimationUtils subclass, like this: для создания анимации из XML можно сделать свой AnimationUtils:
public class MyAnimationUtils {
public static Animation loadAnimation(Context context, int id) throws Resources.NotFoundException {
XmlResourceParser parser = null;
try {
parser = context.getResources().getAnimation(id);
return createAnimationFromXml(context, parser);
} catch (XmlPullParserException ex) {
Resources.NotFoundException rnf = new Resources.NotFoundException("Can't load animation resource ID #0x" + Integer.toHexString(id));
rnf.initCause(ex);
throw rnf;
} catch (IOException ex) {
Resources.NotFoundException rnf = new Resources.NotFoundException("Can't load animation resource ID #0x" + Integer.toHexString(id));
rnf.initCause(ex);
throw rnf;
} finally {
if (parser != null) parser.close();
}
}
private static Animation createAnimationFromXml(Context c, XmlPullParser parser) throws XmlPullParserException, IOException {
return createAnimationFromXml(c, parser, null, Xml.asAttributeSet(parser));
}
private static Animation createAnimationFromXml(Context c, XmlPullParser parser, AnimationSet parent, AttributeSet attrs) throws XmlPullParserException, IOException {
Animation anim = null;
// Make sure we are on a start tag.
int type;
int depth = parser.getDepth();
while (((type=parser.next()) != XmlPullParser.END_TAG || parser.getDepth() > depth)
&& type != XmlPullParser.END_DOCUMENT) {
if (type != XmlPullParser.START_TAG) {
continue;
}
String name = parser.getName();
if (name.equals("set")) {
anim = new AnimationSet(c, attrs);
createAnimationFromXml(c, parser, (AnimationSet)anim, attrs);
} else if (name.equals("alpha")) {
anim = new AlphaAnimation(c, attrs);
} else if (name.equals("scale")) {
anim = new ScaleAnimation(c, attrs);
} else if (name.equals("rotate")) {
anim = new RotateAnimation(c, attrs);
} else if (name.equals("translate")) {
//anim = new TranslateAnimation(c, attrs);
anim = new MyTranslateAnimation(c, attrs); // отредактировали только эту строчку, остальное взяли как было
} else {
throw new RuntimeException("Unknown animation name: " + parser.getName());
}
if (parent != null) {
parent.addAnimation(anim);
}
}
return anim;
}
}
And then you build the animation like this: и вот так создаем анимацию:
MyTranslateAnimation cloud1 = (MyTranslateAnimation) MyAnimationUtils.loadAnimation(this, R.anim.main_cloud1);
Hope this helps. Пользуйтесь на здоровье!