我使用翻译动画用于移动ImageView
。 我使用此代码:
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);
创建一组动画后,我申请他们在ImageView
是这样的:
image = (ImageView)findViewById(R.id.img);
image.startAnimation(animSet);
一切工作正常,但我不能暂停动画和恢复按钮点击 。
我怎样才能做到这一点?
我什么都试过,但没有成功。 任何想法如何做到这一点?
请帮忙!
寻找一段时间后,我发现这个链接 ,并检查该工作翻译动画或不和某些修改之后,这是工作动画太多!
请参见下面修改后的代码:
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;
}
}
我只改变类名,扩展类名和这个类的构造函数。
你可以使用它像:
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);
并启动动画后,你只能叫暂停和恢复方法。 感谢约翰对分享他与我们的代码。
希望这会解决您的问题。 :)
你也可以这样做: 它还是可以这样:
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;
}
}
在创建动画的从XML,您可以创建自己的AnimationUtils
子类,像这样的 : 从XML创建动画可以让你的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;
}
}
然后你建立这样的动画: 这是如何创建一个动画:
MyTranslateAnimation cloud1 = (MyTranslateAnimation) MyAnimationUtils.loadAnimation(this, R.anim.main_cloud1);
希望这有助于。 使用健康的!