I am new to animations on Android and I seem to be having a simple issue... I have a splash/loading screen, which I want to fade out when it's done, then show the app.
My layout looks something like this (the styles just set a background image):
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/homeParentContainer"
style="#style/LayoutWithBgStyle"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<LinearLayout
android:id="#+id/homeSplashLayout"
style="#style/LayoutWithSplashStyle"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true"
android:layout_alignParentRight="true"
android:layout_alignParentTop="true" >
</LinearLayout>
<LinearLayout
android:id="#+id/homeMainLayout"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true"
android:layout_alignParentRight="true"
android:layout_alignParentTop="true"
android:orientation="vertical"
android:visibility="gone" >
</LinearLayout>
</RelativeLayout>
Then I tried two different approaches to fading the splash screen out and setting the main screen visible:
final Animation fadeOut = AnimationUtils.loadAnimation(this, android.R.anim.fade_out);
final View splash = findViewById(R.id.homeMainLayout);
fadeOut.setAnimationListener(new AnimationAdapter()
{
#Override
public void onAnimationEnd(final Animation animation)
{
splash.setVisibility(View.GONE);
findViewById(R.id.homeMainLayout).setVisibility(View.VISIBLE);
}
/** And the other two methods */
});
splash.startAnimation(fadeOut);
Then I tried my own animation:
final AlphaAnimation fadeOut = new AlphaAnimation(1.0F, 0.0F);
fadeOut.setDuration(1000);
final View splash = findViewById(R.id.homeMainLayout);
fadeOut.setAnimationListener(new AnimationListener()
{
#Override
public void onAnimationEnd(final Animation animation)
{
splash.setVisibility(View.GONE);
findViewById(R.id.homeMainLayout).setVisibility(View.VISIBLE);
}
/** And the other two methods */
});
splash.startAnimation(fadeOut);
And I get to the startAnimation code, but the animation never seems to start, and I never get the onAnimationEnd() call. What have I forgotten to include to get the animation to actually run?
I have been a careless programmer.
final View splash = findViewById(R.id.homeMainLayout);
should actually read:
final View splash = findViewById(R.id.homeSplashLayout);
because fading out something that is invisible is not what I had intended.
Related
I have two ImageViews, one is rotating clockwise & other anti-clockwise.
Same code is working for other animation but for rotation, onAnimationEnd is not getting called.
onAnimationEnd is not getting called here.
public class ObcActivity extends AppCompatActivity implements Animation.AnimationListener {
ImageView circularImageView1;
ImageView circularImageView2;
#Override
protected void onCreate(#Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView( R.layout.activity_obc);
// setContentView( new HeartbeatView(this));
clockAnimation=AnimationUtils.loadAnimation(this, R.anim.rotate_clockwise);
antiClockAnimation =AnimationUtils.loadAnimation(this, R.anim.rotate_anticlockwise);
clockAnimation.setAnimationListener(this);
antiClockAnimation.setAnimationListener(this);
clockAnimation.setRepeatCount(-1);
antiClockAnimation.setRepeatCount(-1);
clockAnimation.setRepeatMode(Animation.INFINITE);
antiClockAnimation.setRepeatMode(Animation.INFINITE);
circularImageView1= (ImageView) findViewById(R.id.circularImageView1);
circularImageView2= (ImageView) findViewById(R.id.circularImageView2);
circularImageView1.setAnimation(clockAnimation);
circularImageView1.startAnimation(clockAnimation);
circularImageView2.setAnimation(antiClockAnimation);
}
#Override
public void onAnimationStart(Animation animation) {
}
#Override
public void onAnimationEnd(Animation animation) {
Toast.makeText(this,""+System.currentTimeMillis(),Toast.LENGTH_SHORT).show();
if(animation==clockAnimation){
circularImageView1.setVisibility(View.INVISIBLE);
circularImageView2.setVisibility(View.VISIBLE);
circularImageView1.clearAnimation();
circularImageView2.startAnimation(clockAnimation);
}else {
circularImageView2.setVisibility(View.INVISIBLE);
circularImageView1.setVisibility(View.VISIBLE);
circularImageView1.startAnimation(antiClockAnimation);
circularImageView2.clearAnimation();
}
}
#Override
public void onAnimationRepeat(Animation animation) {
}
Animation clockAnimation, antiClockAnimation;
}
XML:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#71bf44"
android:orientation="vertical">
<ImageView
android:id="#+id/circularImageView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:layout_gravity="center"
android:src="#drawable/ic_circle"
/>
<ImageView
android:id="#+id/circularImageView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:layout_gravity="center"
android:src="#drawable/outer_ring_2_white"
/>
<ImageView
android:id="#+id/circularImageView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:layout_gravity="center"
android:src="#drawable/outer_ring_3_white"
/>
<ImageView
android:id="#+id/circularImageView3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:layout_gravity="center"
android:src="#drawable/outer_ring_2_white_out"
/>
<ImageView
android:id="#+id/circularImageView4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:layout_gravity="center"
android:src="#drawable/outer_ring_3_white_out"
/>
</RelativeLayout>
Update:
As per the answers, I set following code which is not working, not calling onAnimationEnd. I need to get event of when animation of first image ends!
clockAnimation.setRepeatCount(100);
antiClockAnimation.setRepeatCount(100);
clockAnimation.setRepeatMode(100);
antiClockAnimation.setRepeatMode(100);
Because you have set INFINITE in Animation
clockAnimation.setRepeatMode(Animation.INFINITE);
it will start with infinite mode means never End
Your animation iteration updatation will notify in onAnimationRepeat
#Override
public void onAnimationRepeat(Animation animation) {
}
What document saying of method onAnimationEnd
Notifies the end of the animation. This callback is not invoked for
animations with repeat count set to INFINITE.
as per comment:
But I need animation end event. for example after 2 rotations.
for that add this lines in code
clockAnimation.setRepeatCount(2);
clockAnimation.setRepeatMode(Animation.RESTART);
Have a look at the documentation for INFINITE animations:
void onAnimationEnd (Animation animation)
Notifies the end of the animation. This callback is not invoked for
animations with repeat count set to INFINITE.
In any event I suggest holding two Animation.AnimationListener objects and implementing one in your activity. This would make your code clearer and remove the need to ask questions like if(animation==clockAnimation).
I need to do some like ripple effect of Listview item background changing. I try to use ObjectAnimator like this:
AnimatorSet set = (AnimatorSet) AnimatorInflater.loadAnimator(activity,
R.animator.animator_bkg);
set.setTarget(childLinear);
set.setInterpolator(new AccelerateInterpolator());
set.start();
R.animator.animator_bkg:
<objectAnimator
android:propertyName="backgroundColor"
android:duration="3000"
android:valueFrom="#color/white"
android:valueTo="#color/redTrans"
android:repeatCount="-1"
android:repeatMode="reverse"/>
It fluently changes a background (complete filling), but I need gradual filling of ListView item like ripple effect after touch the button.
I think, maybe I can use Canvas with overriding onDraw, but it's to hard for application and it can be some lags.
You can do it with a custom view and implement the circular transition in onDraw(), but it's complicated.
You can work around the complexity by using ViewAnimationUtils.createCircularReveal() on sub view. But the draw back is that it's only for API 21+.
In few words, your root layout of the cell has to be a FrameLayout or a RelativeLayout.
When the transition starts, you dynamically add 2 views under your cell with the start and the end color, then transition with the circular reveal between the 2. At the end of the transition, you just remove the 2 sub views to keep the view hierarchy a bit cleaner.
Here is the result :
In code :
Cell layout:
<FrameLayout
android:id="#+id/cell_root"
android:layout_width="match_parent"
android:layout_height="72dp">
<LinearLayout
android:id="#+id/cell_content"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:padding="16dp"
android:background="#FF00FF">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Title"
android:textSize="18sp" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="This is content"
android:textSize="14sp" />
</LinearLayout>
</FrameLayout>
Code that trigger the background transition :
private void changeBackgroundColor() {
final FrameLayout startingColorFrame = new FrameLayout(mCellRoot.getContext());
final FrameLayout endingColorFrame = new FrameLayout(mCellRoot.getContext());
startingColorFrame.setBackground(mCellContent.getBackground());
endingColorFrame.setBackground(mPendingColor);
mCellContent.setBackground(null);
endingColorFrame.setVisibility(View.GONE);
mCellRoot.addView(endingColorFrame, 0, new FrameLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT));
mCellRoot.addView(startingColorFrame, 0, new FrameLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT));
int finalRadius = (int) Math.sqrt(mCellRoot.getWidth()*mCellRoot.getWidth() + mCellRoot.getHeight()*mCellRoot.getHeight());
final int sourceX = mCellRoot.getWidth() / 3;
final int sourceY = mCellRoot.getHeight() / 2;
// this is API 21 minimum. Add proper checks
final Animator circularReveal = ViewAnimationUtils.createCircularReveal(endingColorFrame, sourceX, sourceY, 0, finalRadius);
endingColorFrame.setVisibility(View.VISIBLE);
circularReveal.addListener(new AnimatorListenerAdapter() {
#Override
public void onAnimationEnd(final Animator animation) {
super.onAnimationEnd(animation);
mStartButton.setEnabled(true);
mCellContent.setBackground(mPendingColor);
mPendingColor = startingColorFrame.getBackground();
mCellRoot.removeView(startingColorFrame);
mCellRoot.removeView(endingColorFrame);
}
});
// customize the animation here
circularReveal.setDuration(800);
circularReveal.setInterpolator(new AccelerateInterpolator());
circularReveal.start();
}
I am new in Android animation and my requirement is to translate a view from one layout to layout in a single xml file on click of that view.
Scenario:
Suppose I click a button, present on the top of the header in a xml file,and it should move/translate downwards (it should give an impact that it lies on the other layout downwards to header), and also I want that when the user clicks on the same again, it should now move to its original position.
Here I am explaining with my xml file:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#drawable/app_bg"
android:orientation="vertical" >
<RelativeLayout
android:id="#+id/top"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="#drawable/header"
android:paddingLeft="10dp"
android:paddingRight="10dp" >
<Button
android:id="#+id/btnSearchHeader"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:layout_centerInParent="true"
android:background="#drawable/search_icon" />
</RelativeLayout>
<RelativeLayout
android:id="#+id/bottom"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#color/app_transparent"
android:paddingLeft="10dp"
android:paddingRight="10dp"
android:layout_marginTop="10dp"
android:visibility="visible" >
<Button
android:id="#+id/btnMenu"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_centerVertical="true"
android:layout_marginRight="5dp"
android:text="ABC" />
<Button
android:id="#+id/btnSearchSelected"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:layout_toRightOf="#+id/btnMenu"
android:text="CDE" />
</RelativeLayout>
</LinearLayout>
MORE PRECISE REQUIREMENT SPECIFICATION (Kindly read carefully:)
Here I have two sub inner layouts:-
Top Layout - id-> top
Bottom Layout- id -> bottom
Now a view (Button -> btnSearchHeader) is lying in my top layout and I want to animate the same to the bottom layout (it should give an impact that it is translated with a translate animation to the bottom layout) on click of that button and when the user clicks on that button, it should again translate back to its original position with a translate animation .. i.e it should show back in the top layout
I have no idea how to give these impacts using translate animations, however i just have a basic translate animation knowledge which is insufficient for me to work upon my requirement.
Any type of related help is appreciable.
Thanks
Have you tried something simple like the following?
final int topHeight = findViewById(R.id.top).getHeight();
final int bottomHeight = findViewById(R.id.bottom).getHeight();
final View button = findViewById(R.id.btnSearchHeader);
final ObjectAnimator moveDownAnim = ObjectAnimator.ofFloat(button, "translationY", 0.F, topHeight + bottomHeight / 2 - button.getHeight() / 2);
final ObjectAnimator moveUpAnim = ObjectAnimator.ofFloat(button, "translationY", topHeight + bottomHeight / 2 - button.getHeight() / 2, 0.F);
button.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if (0.F == v.getTranslationY())
moveDownAnim.start();
else
moveUpAnim.start();
}
});
If you actually need the button view to change parents, you can use AnimatorListener to achieve this at the end of each animation. Something like:
moveDownAnim.addListener(new Animator.AnimatorListener() {
#Override
public void onAnimationEnd(Animator animation) {
((ViewGroup)findViewById(R.id.top)).removeView(button);
((ViewGroup)findViewById(R.id.bottom)).addView(button);
((RelativeLayout)button.getLayoutParams()).addRule(RelativeLayout.CENTER_IN_PARENT);
button.setTranslationY(0.F); // Since it is now positioned in the new layout, no need for translation.
}
#Override
public void onAnimationCancel(Animator animation) { /* NOP */ }
#Override
public void onAnimationRepeat(Animator animation) { /* NOP */ }
#Override
public void onAnimationStart(Animator animation) { /* NOP */ }
});
(And analogous listener for the moveUpAnim.)
However, I doubt you need to actually do this to achieve the visual effect you want. But if you do this part, you will probably also need to set a fixed height for your top view as opposed to wrap_content. (Otherwise, if a layout pass happens while the button has been moved to the bottom view, the top layout's height might go to 0 if there's nothing else in it.) Easiest would be to just do this directly in the xml layout file. However, if you want to "do it on the fly", you can change the layout's height in the onAnimationEnd() method using something like:
#Override
public void onAnimationEnd(Animator animation) {
final ViewGroup topLayout = findViewById(R.id.top);
topLayout.getLayoutParams().height = topLayout.getHeight(); // Keep it the same height...
topLayout.removeView(button);
((ViewGroup)findViewById(R.id.bottom)).addView(button);
((RelativeLayout)button.getLayoutParams()).addRule(RelativeLayout.CENTER_IN_PARENT);
button.setTranslationY(0.F); // Since it is now positioned in the new layout, no need for translation.
}
I have a layout with a top bar container and a content container. When clicking on a button in the top bar, a vertical menu is displayed using an animation. My minSdkVersion is 9.
This works well when I start the app and I still haven't clicked a menu button (i.e. the content fragment has not changed), but as soon as I have clicked an option (and then replace the fragment in the content_container), the vertical menu behaves erratically. The click event of the menu btn is properly triggered, but the vertical menu is not always shown (but sometimes it is...). However, when I click the button and then touch the screen, the animation (show or hide the menu) starts.
I guess it has something to do with the vertical menu overlapping the content fragment, and then replacing the content fragment modify it in some way, but I can't find any solution.
Anybody can help?
top bar fragment
#Override
public void onActivityCreated (Bundle savedInstanceState){
super.onActivityCreated(savedInstanceState);
toggleMenu(0);
Button btn_menu = (Button) getView().findViewById(R.id.btn_menu);
btn_menu.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
mVerticalMenu.setVisibility(View.VISIBLE);
toggleMenu(1000);
}
});
}
private void toggleMenu(int duration){
if(mMenuIsOpen){
TranslateAnimation anim1 = new TranslateAnimation(0,0,0,-(mHeight-mMenuVerticalOffset));
anim1.setFillAfter(true);
anim1.setDuration(duration);
mVerticalMenu.setAnimation(anim1);
AlphaAnimation anim2 = new AlphaAnimation(0.7f, 0.0f);
anim2.setFillAfter(true);
anim2.setDuration(duration);
menu_option_01.setOnClickListener(null);
menu_option_02.setOnClickListener(null);
menu_option_03.setOnClickListener(null);
mMenuIsOpen = false;
}
else{
TranslateAnimation anim1 = new TranslateAnimation(0,0,-(mHeight-mMenuVerticalOffset),0);
anim1.setFillAfter(true);
anim1.setDuration(duration);
mVerticalMenu.setAnimation(anim1);
AlphaAnimation anim2 = new AlphaAnimation(0.0f, 0.7f);
anim2.setFillAfter(true);
anim2.setDuration(duration);
menu_option_01.setOnClickListener(mButtonClickListener);
menu_option_02.setOnClickListener(mButtonClickListener);
menu_option_03.setOnClickListener(mButtonClickListener);
mMenuIsOpen = true;
}
}
private OnClickListener mButtonClickListener = new OnClickListener()
{
public void onClick(View v)
{
toggleMenu(1000);
if(!v.isSelected()){
FragmentTransaction fragmentTransaction = getActivity().getSupportFragmentManager().beginTransaction();
switch(v.getId()){
case R.id.menu_option_01:
// replace content_container by fragment 1
break;
case R.id.btn_02:
// replace content_container by fragment 2
break;
case R.id.btn_03:
// replace content_container by fragment 3
break;
}
}
}
};
private OnClickListener mBgClickListener = new OnClickListener()
{
public void onClick(View v)
{
toggleMenu(1000);
}
};
Main layout
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<FrameLayout
android:id="#+id/content_container"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingTop="44dp" />
<FrameLayout
android:id="#+id/top_bar_container"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:clipChildren="false" />
</RelativeLayout>
top bar layout
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#00000000" >
<LinearLayout
android:id="#+id/vertical_menu"
android:layout_width="50dp"
android:layout_height="match_parent"
android:layout_marginTop="44dp"
android:background="#ffffff"
android:orientation="vertical"
android:visibility="gone" >
<!-- menu layout -->
</LinearLayout>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="44dp"
android:background="#ffffff" >
<Button
android:id="#+id/btn_menu"
android:layout_width="50dp"
android:layout_height="44dp"
android:background="#drawable/menubtn" />
<ImageView
android:layout_width="130dp"
android:layout_height="44dp"
android:src="#drawable/logo"
android:layout_alignParentRight="true" />
</RelativeLayout>
</RelativeLayout>
At the end of my Toggle method, I invalidate the root view:
rootView.invalidate();
and now it works. Not quite clear why I must do that though...
I know there is already an accepted answer for this but I had a similar problem and the answer didnt help.
I had a view that I declared at the end of my layout to keep its Z index above its siblings. I had to touch the page to make the animation work.
So I set the Z index again through Java and it worked.
view.bringToFront();
I currently have an ImageView which i am applying a scale animation to. This view is inside a relative layout which has layout_height and layout_width set as wrap_content. The problem is when the animation starts it makes the imageview bigger than its parent layout and the image then gets cut off. Is there anyway around this?
Here is a working sample:
xml file -
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="20dip"
android:layout_gravity="center_horizontal">
<ImageView
android:id="#+id/imgO"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/circle"/>
</RelativeLayout>
</LinearLayout>
java file -
ImageView imgO;
ScaleAnimation makeSmaller;
ScaleAnimation makeBigger;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.titlescreen);
//Animation
imgO = (ImageView)findViewById(R.id.imgO);
makeSmaller = new ScaleAnimation((float)10.0, (float)1.0, (float)10.0, (float)1.0, Animation.RELATIVE_TO_SELF, (float)0.5, Animation.RELATIVE_TO_SELF, (float)0.5);
makeSmaller.setAnimationListener(new MyAnimationListener());
makeSmaller.setFillAfter(true);
makeSmaller.setDuration(500);
makeBigger = new ScaleAnimation((float)1.0, (float)10.0, (float)1.0, (float)10.0, Animation.RELATIVE_TO_SELF, (float)0.5, Animation.RELATIVE_TO_SELF, (float)0.5);
makeBigger.setAnimationListener(new MyAnimationListener());
makeBigger.setFillAfter(true);
makeBigger.setDuration(750);
imgO.startAnimation(makeBigger);
}
class MyAnimationListener implements AnimationListener {
public void onAnimationEnd(Animation animation) {
ScaleAnimation sa = (ScaleAnimation)animation;
if (sa.equals(makeSmaller))
imgO.startAnimation(makeBigger);
else
imgO.startAnimation(makeSmaller);
}
public void onAnimationRepeat(Animation animation) {
}
public void onAnimationStart(Animation animation) {
}
}
Thanks.
A little late for you, but for everybody looking for an answer: You can call setClipChildren(false) on the enclosing ViewGroups (like RelativeLayout or LinearLayout).
I was applying a translation and alpha animation to a child view and the parent was clipping the child bounds.
For me #HerrHo's answer by itself didn't work, but once I added
android:clipChildren="false"
android:clipToPadding="false"
together, it started working!
I fixed this by making everything fill parent then centering the images horizontally and vertically.