I am trying to implement activity transitions in my app. I came across an awesome one here. But it is only compatible with android jellybean +. The link above redirects to youtube where Nick Butcher shows Activity zoom transition from a view.
I want to use it on gingerbread (API 10)+. How can I achieve that? One idea which came to my mind was to take the location of that view on the screen, pass it to the upcoming activity and then ask that upcoming activity to zoom or grow bigger from that location. I don't know if that is possible or not. Any ideas or solutions are greatly appreciated.
Thanks!
You can use this animation, and change XY according to your image position and screen size, and start your activity when the animation end, it's a trick, hope it help:
private void centerAndZoomView( View view)
{
RelativeLayout root = (RelativeLayout) findViewById( R.id.rootLayout );
DisplayMetrics dm = new DisplayMetrics();
this.getWindowManager().getDefaultDisplay().getMetrics( dm );
int statusBarOffset = dm.heightPixels - root.getMeasuredHeight();
int originalPos[] = new int[2];
view.getLocationOnScreen( originalPos );
int xDest = dm.widthPixels/2;
xDest -= (view.getMeasuredWidth()/2);
int yDest = dm.heightPixels/2 - (view.getMeasuredHeight()/2) - statusBarOffset;
TranslateAnimation anim = new TranslateAnimation( 0, xDest - originalPos[0] , 0, yDest - originalPos[1] );
Animation scale
= new ScaleAnimation(1.0f,root.getMeasuredWidth()/view.getMeasuredWidth() , 1.0f, root.getMeasuredHeight()/view.getMeasuredHeight(),
Animation.RELATIVE_TO_SELF, 0.5f,
Animation.RELATIVE_TO_SELF, 0.5f);
scale.setInterpolator(new AccelerateInterpolator());
AnimationSet set = new AnimationSet(false);
set.addAnimation(scale);
set.addAnimation(anim);
set.setFillAfter(true);
set.setDuration(10000);
//set.start();
view.startAnimation(set);
set.setAnimationListener(new AnimationListener()
{
#Override
public void onAnimationStart(Animation animation){}
#Override
public void onAnimationRepeat(Animation animation){}
#Override
public void onAnimationEnd(Animation animation)
{
Intent intent = new Intent(getApplication(), NextActivity.class);
startActivity(intent);
Toast.makeText(getApplicationContext(), "END OF ANIMATION", Toast.LENGTH_LONG).show();
}
});
}
I've combined TranslateAnimation and ScaleAnimation according to the screen width and height, you can pass any View(Button, ImageView, LinarLayout...) as parameter, and your root layout must have "rootLayout" id.
You can use the Activity.overridePendingTransition() method and specify your own animations. This has been available since API level 5. The ActivityOptions Nick is using in the video is just a newer way of accomplishing the same thing and was introduced in API level 16. Note that in order to support the older APIs you'll have to use an Animation resource (tween animation) instead of an Animator type. You can do translation, alpha and zoom (scale) type animations.
Related
Hello Stack community,
I want to change the position of text view.
I have tried several ways, but for all of them, the view position is set back to original position.
The ways I tried,
// 1. way
someText.setX(newPositionX);
someText.setY(newPositionY);
// 2.way
someText.x(newPositionX).y(newPositionY).setDuration(0).start();
// 3.way
someText.animate().x(newPositionX).y(newPositionY).setDuration(0).start();
//4.way
ObjectAnimator objectAnimatorX= ObjectAnimator.ofFloat(someText, "translationX", oldPositionX, newPositionX);
ObjectAnimator objectAnimatorY= ObjectAnimator.ofFloat(someText, "translationY", oldPositionY, newPositionY);
objectAnimatorX.setDuration(0);
objectAnimatorX.start();
objectAnimatorY.setDuration(0);
objectAnimatorY.start();
// 5.way
ObjectAnimator animX = ObjectAnimator.ofFloat(someText, "x", newPositionX);
ObjectAnimator animY = ObjectAnimator.ofFloat(someText, "y", newPositionY);
AnimatorSet animSetXY = new AnimatorSet();
animSetXY.playTogether(animX, animY);
animSetXY.start();
For all these ways, it is reset to original place.
However when I use animate function in onTouch event eg. someText.animate().x(newPositionX).y(newPositionY).setDuration(0).start();
it does not set to original coordinate, the change is permanent. This what i want but I want to do this, without touch event, namely some other part of the code which uses some other events.
My questions are
Why the change is permanent when I use onTouch event while it is temporary when I dont use onTouch event?
How can I achieve to set Text position permanently?
Lastly my xml is like this for textView
`<TextView
android:id="#+id/latinBigTextView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_margin="20dp"
android:background="#drawable/border_text"
android:text="Initial text " />`
Somehow I have fixed. I have not still got the best results but it updates permanently. Most probably because of my calculations but for now it seems that the position update remains. I have used following code:
TranslateAnimation anim = new TranslateAnimation(0, deltaX, 0, deltaY);
anim.setDuration(0);
anim.setFillAfter(true);
anim.setFillEnabled(true);
anim.setAnimationListener(new Animation.AnimationListener()
{
#Override
public void onAnimationStart(Animation animation)
{
}
#Override
public void onAnimationEnd(Animation animation)
{
int l = newPosX;
int t = newPosY;
int r = SomeText.getWidth() + newPosX;
int b = SomeText.getHeight() + newPosY;
latinText.layout(l, t, r, b);
}
#Override
public void onAnimationRepeat(Animation animation)
{
}
});
latinText.startAnimation(anim);
Where SomeText is the textView which I want to move permanently and dynamically. DeltaX and DeltaY is the amount of pixel that I want to move.
(l, r, t, b) means (left, top, right, bottom) of the view.
I hope it helps other people who have faced the same problem.
However I have still no answer for my first question. If anyone knows and tells, I would be very appreciated.
Whenever I use TranslateAnimation to move an object to a new location, for some reason, the touch target of that object remains in the old position.
How do I change this behaviour?
eg.
public static void hideViewUp (View v, int duration) {
AnimationSet animSet = new AnimationSet(true);
animSet.setFillAfter(true);
animSet.setDuration(duration);
AlphaAnimation alp = new AlphaAnimation(1.0f, 0);
TranslateAnimation translate = new TranslateAnimation(Animation.RELATIVE_TO_SELF,
Animation.RELATIVE_TO_SELF,
Animation.RELATIVE_TO_SELF,
-(v.getTop() + v.getHeight()));
animSet.addAnimation(translate);
animSet.addAnimation(alp);
v.startAnimation(animSet);
}
There's no need to post any sample code - the issue is indeed pretty well known and general.
TranslateAnimation and all other old types of animation change only the draw transformation matrix. These animations shouldn't be used to move items permamently.
To truly move a view to a new position, use ObjectAnimator.
Here's an example: http://www.android-app-market.com/animations-in-android-translate-animation-alpha-animation-object-animation.html
I have performed a Translation animation on button ,everything work as i excepted ,but only the problem is after the animation the button not responding to click event please correct me
Button b=(Button)findViewById(R.id.button1);
TranslateAnimation slide=new TranslateAnimation(0, 30, 0,-40);
slide.setDuration(500);
slide.setZAdjustment(TranslateAnimation.ZORDER_TOP);
slide.setFillAfter(true);
b.startAnimation(slide);
This will translate the object in y direction:
ObjectAnimator mover = ObjectAnimator.ofFloat(v, "translationY", 0, 400);
mover.start();
If you are handling animations at lower level API (below HoneyComb) your animation actually does not moves the button but only its images.Its click will be at same place where you have placed it in your layout.
I faced this issue and I did fix it just some second ago. So, I think that I should share my solution with you guys.
In animation xml file,I removed android:fillAfter="true" when keep android:fillEnabled="true".
Register Animation listener, then in onAnimationEnd() method, I call View#Layout() to change the position of the view.
int newLeft = (int) (layoutContent.getLeft() + layoutContent.getWidth() * 0.8);
layoutContent.layout(newLeft,
layoutContent.getTop(),
newLeft + layoutContent.getMeasuredWidth(),
layoutContent.getTop() + layoutContent.getMeasuredHeight());
In my case, what the animation do is that slides the layoutContent to leftside 80% of width.
It works fine. Hope this helps.
#Update: Today, you can use ObjectAnimator on android 3.0 +. If you are developing for android under 3.0, you can find it at support library v.4. ObjectAnimator is bester for animation.
#Update#2: You can use ViewPropertyAnimator on android api higher 12 version.
It provides better performance, and fix problem with click events. Example:
mButton.animate()
.setDuration(TIME)
.translationY(VALUE)
.start();
I could achieve what you wanted but you will have manage co-ordinates manually.
See if it works for you.
public class AnimationTestActivity extends Activity {
private Button mButton;
private LinearLayout.LayoutParams params;
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
mButton = (Button) findViewById(R.id.button);
mButton.setOnClickListener(mClickListener);
params = (LayoutParams) mButton.getLayoutParams();
}
private android.view.View.OnClickListener mClickListener = new View.OnClickListener() {
#Override
public void onClick(View v) {
TranslateAnimation animation = new TranslateAnimation(0, 0, 0, 400);
animation.setDuration(2000);
animation.setAnimationListener(mAnimationListener);
v.startAnimation(animation);
}
};
private AnimationListener mAnimationListener = new AnimationListener() {
#Override
public void onAnimationStart(Animation animation) {
}
#Override
public void onAnimationRepeat(Animation animation) {
}
#Override
public void onAnimationEnd(Animation animation) {
params.topMargin = params.topMargin + 400;
mButton.setLayoutParams(params);
}
};
}
The animation do not change the View actually Position. even if you setfillAfter(true), The position it can accept click event is the original position.
I found an easy solution define the button final position in layout and start the animation from some position ,ie specify the fromX or fromY instead of putting as zero
Try to use this:
b.layout(0, -40, b.getWidth(), b.getHeight());
How to move an image across the screen android?
Guys, im creating MoleMash game for My Coursework and I really need help!. I want to try to move a image (the mole) across the screen in different and random coordinates so that it can be touched by the user to get a score. I created the background which I made the image view. I have the mole, Is it another image view? or is it a Image button?
And how do I move this across to different parts of the screen for the user interact?
I would greatly appreciate your help!
For games development you need to learn how to use canvas and SurfaceView: How can I use the animation framework inside the canvas?
Using onTouch event listener you would compare the touch location with the location of your animated images...
The mole would be an image button so it could be clicked, but to make it move you would have to use animation. Keep in mind that I am a beginner in Android animation as well :). You would probably use TranslateAnimation and set the x and y in the parameters to random variables, the duration could be when a time/counter variable reaches a certain point after the game has started. This post has more information on animation: How to move an image from left to right in android.
Try this code,
declare following variables
private Random random=new Random();
private int screenwidth, screenhgt;
In onCreate():
screenwidth= getyourScreenWidth;
screenhgt=getyourscreenheight;
Pass your view to this method(In my case I animate textview.. you pass the imageview)
private void screenRandomAnimator(final TextView textView) {
final AnimatorSet mAnimatorSet = new AnimatorSet();
mAnimatorSet.playTogether(ObjectAnimator.ofFloat(textView, "x", (float) random.nextInt(screenwidth), (float) random.nextInt(screenwidth)),
ObjectAnimator.ofFloat(textView, "y", (float) random.nextInt(screenhgt), (float) random.nextInt(screenhgt)), ObjectAnimator.ofFloat(textView, "rotation", 360)
/* ObjectAnimator.ofFloat(textView, "scaleX", 1, 0.8f, 1, 1.1f, 1), ObjectAnimator.ofFloat(textView, "scaleY", 1, 0.8f, 1, 1.1f, 1)*/);
int Low = 1500;
int High = 2500;
int Result = random.nextInt(High - Low) + Low;
mAnimatorSet.setDuration(Result);
mAnimatorSet.start();
mAnimatorSet.addListener(new Animator.AnimatorListener() {
#Override
public void onAnimationStart(Animator animation) {
}
#Override
public void onAnimationEnd(Animator animation) {
mAnimatorSet.playTogether(ObjectAnimator.ofFloat(textView, "x", textView.getX(), (float) random.nextInt(screenwidth)),
ObjectAnimator.ofFloat(textView, "y", textView.getY(), (float) random.nextInt(screenhgt)));
int Low = 1500;
int High = 2500;
int Result = random.nextInt(High - Low) + Low;
mAnimatorSet.setDuration(Result);
mAnimatorSet.start();
}
#Override
public void onAnimationCancel(Animator animation) {
}
#Override
public void onAnimationRepeat(Animator animation) {
}
});
}
I am trying to perform 2 text animations in a row with my TextView under Android
first:
TextView target = (TextView)findViewById(R.id.textanimation);
target.setText(text1);
target.startAnimation(animationSet1);
animationSet1 is a set of alpha and translate animations:
Animation alpha = new AlphaAnimation(0.0f, 1.0f);
Animation a = new TranslateAnimation(
Animation.RELATIVE_TO_SELF, 0, Animation.RELATIVE_TO_SELF, 0,
Animation.RELATIVE_TO_SELF, -1.0f,
Animation.RELATIVE_TO_SELF, 0);
alpha.setDuration( 1000 );
a.setDuration( 1000 );
When onAnimationEnd happens in animationSet1 I immediately start another animation
TextView target = (TextView)findViewById(R.id.textanimation);
target.setText(text2);
target.startAnimation(animationSet1);
However in the 2nd animation I can see on a split of second a fully opaque text, however it should start with 0 alpha. How to avoid this situation? Will appresiate any answer.
P.S. Even if I have 2 separate textviews with the prepared text in both - same bug is seen.
If I put some delay between the animations both of them become smooth.
Sergey
I'm not sure how you are triggering the start of the 2nd animation following the termination of the 1st animation. I'm guessing you're checking to see if the animation on a view is null. This isn't the best or correct way to do it. Instead you should you an AnimationListener
Animation animation1 = new Animation();//Replace with your animation
animation1.setDuration(DURATION_1);
animation1.setAnimationListener(new AnimationListener() {
public void onAnimationStart(Animation arg0) {}
public void onAnimationRepeat(Animation arg0) {}
public void onAnimationEnd(Animation arg0) {
Animation animation2 = new Animation();
animation2.setDuration(DURATION_2);
view2.startAnimation(animation2);
}
});
view1.startAnimation(animation1);