I want create a splash screen, So i using animation. Now i want Anim scroll from left to mid ( change % become center_vertical or center_horizontal ).
Sorry ! I speak English is not good.
Code xml
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
android:shareInterpolator="false">
<translate android:fromXDelta="-220%" android:toXDelta="70%"<!--I want change 70% -> center_vertical-->
android:fromYDelta="0%" android:toYDelta="0%"
android:duration="1200"/>
</set>
If you try with android:toXDelta="0%", it will make the animation stop right where the View is placed on the layout by default. For example, if the View has android:layout_centerHorizontal="true" attribute in layout, the animation will stop in the center of the screen.
public void desaparecer(final LinearLayout parent, View hijo, int espaciofinal) {
parent.removeView(hijo);
final LinearLayout.LayoutParams params = (LinearLayout.LayoutParams)parent.getChildAt(0).getLayoutParams();
ValueAnimator animator = ValueAnimator.ofInt(params.height, espaciofinal);
animator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
#Override
public void onAnimationUpdate(ValueAnimator valueAnimator)
{
params.height= (Integer) valueAnimator.getAnimatedValue();
parent.getChildAt(0).requestLayout();
}
});
animator.setDuration(300);
animator.start();
}
This are my code, and work... well, a little bad.
i'm searching the way to don't start above 0pd, because the idea it's that start respect the original height.
but if like you, you can use it
Related
I am simply translating a cardview that contains an image and textview, horizontally from outside the screen, to inside.
here is my animation xml which is referenced using android:layoutAnimation of the cardview xml:
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
<translate android:fromXDelta="-300"
android:toXDelta="0"
android:fromYDelta="0"
android:toYDelta="0"
android:duration="1000"/>
</set>
I want the card to maintain its look and animate as a whole from one point to another, but instead I get a weird delay between the card and its contained views making for an ugly animation, the below image is my best attempt to describe it visually:
Any help would be greatly appreciated!
I have done like this
ObjectAnimator settleAnimator;
if(settleAnimator==null){
settleAnimator = ObjectAnimator.ofFloat(yourView, "translationX", 0);
settleAnimator.addListener(new Animator.AnimatorListener() {
#Override
public void onAnimationStart(Animator animation) {
inAnimation = true;//just a boolean
}
#Override
public void onAnimationEnd(Animator animation) {
inAnimation = false;
}
#Override
public void onAnimationCancel(Animator animation) {
inAnimation = false;
}
#Override
public void onAnimationRepeat(Animator animation) {
}
});
}
settleAnimator.setDuration(200);//millisec
//this will take start value and end value in pixels ie. (from, to)
settleAnimator.setFloatValues(+300, 0);
settleAnimator.start();
}
The problem was that while I was testing different ways of doing this I left both the programmatic code and the xml code in, thus causing strange doubled up animations.
I have a Linear Layout which I want to be animated to resize when I click on it. Once it is resized you should be able to see buttons and text. I've tried animating using this:
container.animate().scaleX(scale);
container.animate().scaleY(scale);
Also I tried this:
container.startAnimation(anim);
where anim is (for making the view bigger):
<scale
android:interpolator="#android:anim/accelerate_decelerate_interpolator"
android:fromXScale="1.0"
android:toXScale="10.0"
android:fromYScale="1.0"
android:toYScale="10.0"
android:pivotX="0%"
android:pivotY="0%"
android:fillAfter="false"
android:duration="700" />
But the problem is that each time I resize the LinearLayout the children inside get resized as well. This should be compatible to AndroidSDK 16 and above. How to achieve this without resizing the children inside?
Thanks
Hello you can override onMeasure() method of the children and make its dimensions as constants for example.
float scale = 1.2f;
ValueAnimator animator = ValueAnimator.ofInt(0,100);
animator.setTarget(container);
animator.setDuration(1000).start();
animator.addUpdateListener(new AnimatorUpdateListener()
{
#Override
public void onAnimationUpdate(ValueAnimator animation)
{
LayoutParams layoutparams = container.getLayoutParams();
layoutparams.height = (int)(layoutparams.height* animation.getAnimatedValue() *(scale -1f));
layoutparams.width= (int)(layoutparams.width* animation.getAnimatedValue() *(scale -1f));
container.setLayoutParams(layoutparams);
}
});
How can I create one animation which always translates from left to right and then if animation stops it turns the other way and translates from right to left. I can create Translate animation in xml and programatically too.
Create this xml, it will translate from left to right and from right to left.
/res/anim/translate.xml
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
android:fillEnabled="true"
android:fillAfter="true" >
<translate
android:interpolator="#android:anim/linear_interpolator"
android:fromXDelta="0%p"
android:toXDelta="10%p"
android:duration="2000"
android:startOffset="0" />
<translate
android:interpolator="#android:anim/linear_interpolator"
android:fromXDelta="10%p"
android:toXDelta="-10%p"
android:duration="2000"
android:startOffset="2000" />
</set>
Suppose you want to apply this animation to an image then write the code below in your class file.
ImageView image = (ImageView)findViewById(R.id.imageView1);
Animation animation = AnimationUtils.loadAnimation(getApplicationContext(), R.anim.translate);
image.startAnimation(animation);
Edit:
If you want your animation to repeat infinitely add the following attributes to the translate tag.
android:repeatCount="infinite"
android:repeatMode="restart"
Depends on your min API level actually. Essentially You should look at ViewPropertyAnimator class.
Let's say you have view to animate, and parent - parent of this view. Your code would look like this:
final float startX = 0; //start position
final float endX = parent.getWidth() - view.getWidth(); //end position - right edge of the parent
API 12+:
view.animate().translationX(endX).setListener(new AnimatorListenerAdapter() {
#Override
public void onAnimationEnd(Animator animation) {
view.animate().translationX(startX).start();
}
}).start();
API 16+:
view.animate().translationX(endX).withEndAction(new Runnable() {
#Override
public void run() {
view.animate().translationX(startX).start();
}
}).start();
Your startX and endX might be different - depending on your needs.
Please note that start() method call is optional.
Also I have not mentioned solution for API <12 since I personally think that nobody should support those legacy APIs :)
I have a ListView on screen and a menu at the bottom. Upon a click of menu key, it animates-slides off the screen and the ListView expands.
menuBtmVisable = false;
Animation menu_off = AnimationUtils.loadAnimation(this, R.anim.menu_off);
menubtm.startAnimation(menu_off);
Display display = getWindowManager().getDefaultDisplay();
LayoutParams listlp = new LayoutParams(display.getWidth(), display.getHeight()-87 , 0, 50);
ListViewMain.setLayoutParams(listlp);
menu_off.xml
<set
android:fillEnabled="true"
android:fillAfter="true"
xmlns:android="http://schemas.android.com/apk/res/android">
<translate
android:fromYDelta="0"
android:toYDelta="120"
android:duration="500"
/>
</set>
Yet when, with the menu down, I click on the ListView item "13" ( see picture ), it results in a menu click, as if it is still in place...
What do you think would be the best way to take care of it?
I've looking for an answer for a problem like that, and finally, after a week, I've managed to solve my problem. Since it looks similar to yours, maybe it will help you.
Set up and AnimationListener() in your animation and, onAnimationEnd, change the layout as you want. In my case, I wanted to slide a layout up, so 2 buttons would appear from below. However, the layout just slided visually; the buttons would still be off screen, interactionally speaking. So I have something like this:
final View screen = findViewById(R.id.welcome_screen);
final Animation a = AnimationUtils.loadAnimation(getApplicationContext(), R.anim.slide_home_up);
a.setFillAfter(true);
a.setAnimationListener(new AnimationListener() {
public void onAnimationStart(Animation animation) {
}
public void onAnimationRepeat(Animation animation) {
}
public void onAnimationEnd(Animation animation) {
screen.clearAnimation();
screen.setPadding(0, -222, 0, 0);
}
});
screen.startAnimation(a);
Any help with the following problem would be greatly appreciated. I know what I need to do and I have checked the Developer docs, but the exact syntax I need to use eludes me (I'm a noob).
Here's what I'm doing. I have a translate.xml file in res/anim that works fine. It looks like this:
<translate xmlns:android="http://schemas.android.com/apk/res/android"
android:fromXDelta="0%"
android:toXDelta="0%"
android:fromYDelta="0%"
android:toYDelta="10%"
android:repeatCount="0"
android:duration="1000"
android:fillEnabled="true"
android:fillAfter="true"/>
I'm executing my code like this:
l = (LinearLayout) findViewById(R.id.linearLayout1);
a = AnimationUtils.loadAnimation(this, R.anim.translate);
a.setAnimationListener(new AnimationListener() {
public void onAnimationStart(Animation anim){};
public void onAnimationRepeat(Animation anim){};
public void onAnimationEnd(Animation anim){
//l.setLayoutParams(params);
};
});
l.startAnimation(a);
When the animation is done I would like the LinearLayout it animated to move to it's new position (where the animation moved it to). The reason for this is the LinearLayout contains several form elements the user can interact with.
This is a real simple animation for a fairly simple project. It simply moves the element about 30 pixels down the screen. I wouldn't ask for help except I've been struggling with this for several hours now. I know I need to update the LinearLayout's parameters on the end of the animation, but how exactly? I've read of several different ways and they're all a bit confusing.
Thanks in advance.
Instead of creating a new AnimationListener, try implementing the AnimationListener interface to your current (or a new) class. Then just override the onAnimationEnd() method.
Example:
public class ThisClass implements AnimationListener {
private otherMethod() {
l.getAnimation().setAnimationListener(this);
}
public void onAnimationStart(Animation anim){};
public void onAnimationRepeat(Animation anim){};
public void onAnimationEnd(Animation anim){
l.setLayoutParams(params);
};
}
Finally got a way to work around,the right way to do this is setFillAfter(true),
if you want to define your animation in xml then you should do some thing like this
<set xmlns:android="http://schemas.android.com/apk/res/android"
android:interpolator="#android:anim/decelerate_interpolator"
android:fillAfter="true">
<translate
android:fromXDelta="0%"
android:toXDelta="-100%"
android:duration="1000"/>
</set>
you can see that i have defined filterAfter="true" in the set tag,if you try to define it in translate tag it won't work,might be a bug in the framework!!
and then in the Code
Animation anim = AnimationUtils.loadAnimation(this, R.anim.slide_out);
someView.startAnimation(anim);
OR
TranslateAnimation animation = new TranslateAnimation(-90, 150, 0, 0);
animation.setFillAfter(true);
animation.setDuration(1800);
someView.startAnimation(animation);
then it will surely work!!
Now this is a bit tricky it seems like the view is actually move to the new position but actually the pixels of the view are moved,i.e your view is actually at its initial position but not visible,you can test it if have you some button or clickable view in your view(in my case in layout),to fix that you have to manually move your view/layout to the new position
public TranslateAnimation (float fromXDelta, float toXDelta, float fromYDelta, float toYDelta)
new TranslateAnimation(-90, 150, 0, 0);
now as we can see that our animation will starts from -90 x-axis to 150 x-axis
so what we do is set
someView.setAnimationListener(this);
and in
public void onAnimationEnd(Animation animation)
{
someView.layout(150, 0, someView.getWidth() + 150, someView.getHeight());
}
now let me explain public void layout (int left, int top, int right, int botton)
it moves your layout to new position first argument define the left,which we is 150,because translate animation has animated our view to 150 x-axis, top is 0 because we haven't animated y-axis,now in right we have done someView.getWidth() + 150 basically we get the width of our view and added 150 because we our left is now move to 150 x-axis to make the view width to its originall one, and bottom is equals to the height of our view.
I hope you people now understood the concept of translating, and still you have any questions you can ask right away in comment section,i feel pleasure to help :)
EDIT Don't use layout() method as it can be called by the framework when ever view is invalidated and your changes won't presist, use LayoutParams to set your layout parameters according to your requirement