Develop Reference

Animation not showing - why?

I am new and studying online . This is my first animation study at Android. The problem is that when I choose the answer my Card View animation is suppose to show immediately. But it didn't show as soon as I click . But I found out that after I click the button, I need to press Home button and resume it from the background apps to start the animation.The animation starts only after I do this process. Toast is showing without a problem. After I choose the answer I always need to do like that to show my animation. The app is about True or false.
Also the coding is exactly the same as my online tutorial. maybe my phone problem ?? I am using Samsung S 7 edge.
public class MainActivity extends AppCompatActivity implements View.OnClickListener {
private TextView QuestionTextView,QcountTextView;
private Button Tbutton,Fbutton;
private ImageButton prev,next;
private int count = 0;
private CardView cardView;
private Animation shake;
public Questions Qarray[] = new Questions[]{
new Questions(R.string.Q1, true),
new Questions(R.string.Q2, false),
new Questions(R.string.Q3, true),
new Questions(R.string.Q4, true),
new Questions(R.string.Q5, false),
new Questions(R.string.Q6, true),
new Questions(R.string.Q7, false)
};
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Tbutton = findViewById(R.id.tb);
Fbutton = findViewById(R.id.fb);
QuestionTextView = findViewById(R.id.questionshow);
QcountTextView = findViewById(R.id.Qcount);
next = findViewById(R.id.nb);
prev = findViewById(R.id.pb);
cardView = findViewById(R.id.cardView);
shake = AnimationUtils.loadAnimation(MainActivity.this,R.anim.shakeanimation);
Tbutton.setOnClickListener(this);
Fbutton.setOnClickListener(this);
next.setOnClickListener(this);
prev.setOnClickListener(this);
QuestionTextView.setText(Qarray[count].question);
}
#Override
public void onClick(View view) {
switch (view.getId()){
case R.id.tb:
giveanswer(true);
pagechange();
break;
case R.id.fb:
giveanswer(false);
pagechange();
break;
case R.id.pb:
if(count != 0) {
count = (count - 1);
pagechange();
}
break;
case R.id.nb:
count = (count + 1) % Qarray.length;
pagechange();
break;
}
}
private void pagechange() {
QuestionTextView.setText(Qarray[count].getQuestion());
QcountTextView.setText((count+1) + " out of " + Qarray.length);
}
private void giveanswer(boolean b) {
boolean correctanswer = Qarray[count].ans;
if(b == correctanswer){
fadeView();
Toast.makeText(this,R.string.yes,Toast.LENGTH_SHORT).show();
}
else{
ShakeAnimation();
Toast.makeText(this,R.string.no,Toast.LENGTH_SHORT).show();
}
}
private void fadeView(){
AlphaAnimation alphaAnimation = new AlphaAnimation(1.0f,0.0f);
alphaAnimation.setDuration(350);
alphaAnimation.setRepeatCount(1);
alphaAnimation.setRepeatMode(Animation.REVERSE);
cardView.setAnimation(alphaAnimation);
alphaAnimation.setAnimationListener(new
Animation.AnimationListener() {
#Override
public void onAnimationStart(Animation animation) {
cardView.setCardBackgroundColor(Color.GREEN);
}
#Override
public void onAnimationEnd(Animation animation){
cardView.setCardBackgroundColor(Color.rgb(41,226,205));
}
#Override
public void onAnimationRepeat(Animation animation) {
}
});
}
private void ShakeAnimation(){
cardView.setAnimation(shake);
shake.setAnimationListener(new Animation.AnimationListener() {
#Override
public void onAnimationStart(Animation animation) {
cardView.setCardBackgroundColor(Color.RED);
}
#Override
public void onAnimationEnd(Animation animation) {
cardView.setCardBackgroundColor(Color.rgb(41,226,205));
}
#Override
public void onAnimationRepeat(Animation animation) {
}
});
}
}
I expect the animation show as soon as I choose the answer.

you need to call alphaAnimation.start(); or shake.start(); just having animation listeners is not gonna start your animation when you want it to start.
try adding these lines exactly where you want the animations to run.
For Example:
AlphaAnimation alphaAnimation = new AlphaAnimation(1.0f,0.0f);
alphaAnimation.setDuration(350);
alphaAnimation.setRepeatCount(1);
alphaAnimation.setRepeatMode(Animation.REVERSE);
cardView.setAnimation(alphaAnimation);
alphaAnimation.start();
Also setAnimation should to be used with xml Animations if I'm not mistaking

Slide up animation for selected listview items

I have a listview. I want to add one animation that is if I select one list item then it will be removed and rest of the items below that item will be shifted up with slide up animation. I have done this with linear layout by getting its child position but I am not able to understand how to slide up rest elements of listview. Please help
Below is my code for animation in dynamically created linear layout
plus.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Animation animation1 = AnimationUtils.loadAnimation(getActivity(), R.anim.move);
final Animation animation2 = AnimationUtils.loadAnimation(getActivity(), R.anim.moveup);
this is animation of that item on which we click
lay1.startAnimation(animation1);
this is code for animation rest child to slide up
final int i = lay1.getId() + 1;
final Handler handler = new Handler();
handler.postDelayed(new Runnable() {
#Override
public void run() {
//Do something after 100ms
try {
LinearLayout l = (LinearLayout) layoutall.getChildAt(i);
l.startAnimation(animation2);
layoutall.removeView(lay1);
} catch (Exception e) {
//connectToDatabase();
}
}
}, 600);
Updated Code
Thanks a lot. I was able to implement this functionality but problem is that I have used two animation in one listview but not able to implement first animation.
My code for list item to whom I want to swipe left while on click
viewHolder.accept.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
removeListItem(viewHolder.order_card_layout, position);
}
});
And code for animation is
protected void removeListItem(final View rowView, final int positon) {
// TODO Auto-generated method stub
final Animation animation = AnimationUtils.loadAnimation(rowView.getContext(), R.anim.move);
rowView.startAnimation(animation);
Animation.AnimationListener al = new Animation.AnimationListener() {
#Override
public void onAnimationEnd(Animation arg0) {
ViewHolder vh = (ViewHolder) rowView.getTag();
//vh.needInflate = true;
}
#Override public void onAnimationRepeat(Animation animation) {}
#Override public void onAnimationStart(Animation animation) {}
};
collapse(rowView, al);
}
but problem is that My first animation is not working that is slide right
final Animation animation = AnimationUtils.loadAnimation(rowView.getContext(), R.anim.move);
rowView.startAnimation(animation);
New Updated Code
I was able to implement this functionality but problem is that I have used two animations and want to do first animation on that item whom I click and another animation on all the list items below that clicked item.But my problem is that the item on which I clicked slide right and also it re appears and slide up with whole list but I want that the item on which i click will be slide right and rest will be slide up.
My code for list item to whom I want to swipe left while on click
viewHolder.accept.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
removeListItem(viewHolder.order_card_layout, position);
}
});
And code for animation is
protected void removeListItem(final View rowView, final int positon) {
// TODO Auto-generated method stub
final Animation animation = AnimationUtils.loadAnimation(rowView.getContext(), R.anim.move);
rowView.startAnimation(animation);
final Handler handler = new Handler();
handler.postDelayed(new Runnable() {
#Override
public void run() {
//Do something after 100ms
try {
Animation.AnimationListener al = new Animation.AnimationListener() {
#Override
public void onAnimationEnd(Animation arg0) {
ViewHolder vh = (ViewHolder) rowView.getTag();
//vh.needInflate = true;
}
#Override
public void onAnimationRepeat(Animation animation) {
}
#Override
public void onAnimationStart(Animation animation) {
}
};
collapse(rowView, al);
} catch (Exception e) {
//connectToDatabase();
}
}
}, 600);
}
private void collapse(final View v, Animation.AnimationListener al) {
final int initialHeight = v.getMeasuredHeight();
Animation anim = new Animation() {
#Override
protected void applyTransformation(float interpolatedTime, Transformation t) {
if (interpolatedTime == 1) {
v.setVisibility(View.GONE);
}
else {
v.getLayoutParams().height = initialHeight - (int)(initialHeight * interpolatedTime);
v.requestLayout();
}
}
#Override
public boolean willChangeBounds() {
return true;
}
};
if (al!=null) {
anim.setAnimationListener(al);
}
anim.setDuration(600);
v.startAnimation(anim);
}

Here is code related to your requirement , Try this
https://github.com/paraches/ListViewCellDeleteAnimation
Download code and run it.
if you want to see demo than see this video,
http://www.youtube.com/watch?v=bOl5MIti7n0

Here is Code, where i am implementing both animation.
1) Slide from right while click on List-view Item-click.
2) while clicking on Delete Button, slide-up animation for remaining rows in list-view (which is already done in link i have given).
Copy below files to your anim folder.
1) fade_out.xml :
<set xmlns:android="http://schemas.android.com/apk/res/android"
android:shareInterpolator="false">
<alpha
android:duration="700"
android:fromAlpha="1"
android:toAlpha="0" />
</set>
2) fade_in.xml :
<set xmlns:android="http://schemas.android.com/apk/res/android"
android:shareInterpolator="false">
<alpha
android:duration="700"
android:fromAlpha="0"
android:toAlpha="1" />
</set>
3) slide_in_right.xml :
<set xmlns:android="http://schemas.android.com/apk/res/android"
android:shareInterpolator="false">
<translate
android:duration="700"
android:fromXDelta="100%"
android:toXDelta="0%" />
</set>
4) slide_out_right.xml :
<set xmlns:android="http://schemas.android.com/apk/res/android"
android:shareInterpolator="false">
<translate
android:duration="700"
android:fromXDelta="0%"
android:toXDelta="100%" />
</set>
Now add below methods and class to your activity,
//Animation
private void fadeOutView(View view) {
Animation fadeOut = AnimationUtils.loadAnimation(view.getContext(), R.anim.fade_out);
if (fadeOut != null) {
fadeOut.setAnimationListener(new ViewAnimationListener(view) {
#Override
protected void onAnimationStart(View view, Animation animation) {
}
#Override
protected void onAnimationEnd(View view, Animation animation) {
view.setVisibility(View.GONE);
}
});
view.startAnimation(fadeOut);
}
}
private void fadeInView(View view) {
Animation fadeIn = AnimationUtils.loadAnimation(view.getContext(), R.anim.fade_in);
if (fadeIn != null) {
fadeIn.setAnimationListener(new ViewAnimationListener(view) {
#Override
protected void onAnimationStart(View view, Animation animation) {
view.setVisibility(View.VISIBLE);
}
#Override
protected void onAnimationEnd(View view, Animation animation) {
}
});
view.startAnimation(fadeIn);
}
}
private void slideInView(View view) {
Animation slideIn = AnimationUtils.loadAnimation(view.getContext(), R.anim.slide_in_right);
if (slideIn != null) {
slideIn.setAnimationListener(new ViewAnimationListener(view) {
#Override
protected void onAnimationStart(View view, Animation animation) {
view.setVisibility(View.VISIBLE);
}
#Override
protected void onAnimationEnd(View view, Animation animation) {
}
});
view.startAnimation(slideIn);
}
}
private void slideOutView(View view) {
Animation slideOut = AnimationUtils.loadAnimation(view.getContext(), R.anim.slide_out_right);
if (slideOut != null) {
slideOut.setAnimationListener(new ViewAnimationListener(view) {
#Override
protected void onAnimationStart(View view, Animation animation) {
}
#Override
protected void onAnimationEnd(View view, Animation animation) {
view.setVisibility(View.GONE);
}
});
view.startAnimation(slideOut);
}
}
private abstract class ViewAnimationListener implements Animation.AnimationListener {
private final View view;
protected ViewAnimationListener(View view) {
this.view = view;
}
#Override
public void onAnimationStart(Animation animation) {
onAnimationStart(this.view, animation);
}
#Override
public void onAnimationEnd(Animation animation) {
onAnimationEnd(this.view, animation);
}
#Override
public void onAnimationRepeat(Animation animation) {
}
protected abstract void onAnimationStart(View view, Animation animation);
protected abstract void onAnimationEnd(View view, Animation animation);
}
Now, if you want to display animation on List Item Click then, give animation in Adapter class in which you have inflate raw_layout for listView.
5) raw_layout.xml :
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:id="#+id/linLayout">
<ImageButton
android:id="#+id/cell_trash_button"
android:layout_width="48dp"
android:layout_height="48dp"
android:src="#drawable/trash_can"
android:scaleType="fitXY" />
<TextView
android:id="#+id/cell_name_textview"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_vertical|left"
android:layout_marginLeft="16dp"
android:layout_weight="1"
android:text="cell name" />
</LinearLayout>
6) finally Apply animation to your Parent Layout of raw_layout in getView() method of adapter onClick of Parent Layout.Here My parent layout for raw_layout is LinearLayout which have id named linLayout.
vh.linLayout.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View view) {
if (vh.linLayout.getVisibility() == View.VISIBLE) {
fadeOutView(vh.linLayout);
slideInView(vh.linLayout);
} else {
fadeInView(vh.linLayout);
slideOutView(vh.linLayout);
}
}
});
i have tried this and its working. So try this once!!

Android Customizing onAnimationEnd

I simply want to use this working animation code I have in a more efficient manner. The code below works exactly as I want it to but I don't want to copy and paste this everywhere in the thirty places across several activities in which I'll be using this specific fadeout animation. How can I set up a class to do this? The primary problem is setting the view to invisible in onAnimationEnd.
final TextView ph = (TextView) findViewById(R.id.textPlaceholder);
final Animation fadeOut = new AlphaAnimation(1.0f, 0.0f);
fadeOut.setStartOffset(1000);
fadeOut.setDuration(500);
fadeOut.setAnimationListener(new AnimationListener() {
#Override
public void onAnimationEnd(Animation animation) {
ph.setVisibility(View.INVISIBLE);
}
#Override
public void onAnimationRepeat(Animation animation) {
// TODO Auto-generated method stub
}
#Override
public void onAnimationStart(Animation animation) {
// TODO Auto-generated method stub
}
});
ph.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
ph.startAnimation(fadeOut);
}
});

Create a helper class:
Class ClickToFadeOutAnimation
private View view;
public static void attachTo(View view) {
new FadeOutAnimation(View view);
}
public FadeOutAnimation(View view) {
this.view = view;
view.setOnCLickListsner(new OnClickListener() {
animate();
)
}
public void animate() {
Animation fadeOut = ...
.. rest of your animation code
}
}
And to use it:
TextView ph = (TextView) findViewById(R.id.textPlaceholder);
ClickToFadeOutAnimation.attachTo(ph);

Extend the AlphaAnimation class where you set the duration, offset and AnimationListener in the constructor.

Animation on removeAllViews Android

I have a class where I include another layout on a button click. This included layout has some buttons and a code which executes on clicking these buttons. I have used a counter which indicates the number of times the button is clicked. First time clicking on the button includes the layout and the second time clicking removes the views and so on. Here's the code
public class Home extends Fragment implements OnClickListener {
int c = 0;
Button bmain, bnew, bolder;
RelativeLayout r1;
View rootView;
Animation slidedown, slideup;
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
rootView = inflater.inflate(R.layout.home, container, false);
bmain = (Button) rootView.findViewById(R.id.btn2);
bmain.setOnClickListener(this);
return rootView;
}
#Override
public void onClick(View arg0) {
ViewGroup con = null;
LayoutInflater layoutInflater = (LayoutInflater)getActivity().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
FrameLayout flContainer = (FrameLayout)rootView.findViewById(R.id.flContainer);
//Loading animation
slidedown = AnimationUtils.loadAnimation(getActivity(), R.anim.slide_down);
slideup = AnimationUtils.loadAnimation(getActivity(), R.anim.slide_up);
//The counter indicates the number of clicks.
//Needs to be replaced for a better solution.
//If it's even add view
if(c%2==0)
{
//Adding layout here
flContainer.addView(layoutInflater.inflate(R.layout.test1,con,false ));
//Starting Animation
flContainer.startAnimation(slidedown);
//After adding layout we can find the Id of the included layout and proceed from there
bnew = (Button) rootView.findViewById(R.id.btntest);
bnew.setOnClickListener(new OnClickListener()
{
#Override
public void onClick(View arg0) {
Toast.makeText(getActivity(), "You Clicked New", Toast.LENGTH_LONG).show();
}
});
bolder = (Button) rootView.findViewById(R.id.btntest1);
bolder.setOnClickListener(new OnClickListener()
{
#Override
public void onClick(View arg0) {
Intent form = new Intent(getActivity(),FeedbackForm.class);
startActivity(form);
}
});
c++;
} //If ends here
//If it's odd remove view
else
{
flContainer.removeAllViews();
flContainer.startAnimation(slideup);
//flContainer.removeView(flContainer);
//flContainer.removeView(layoutInflater.inflate(R.layout.test1, con, false));
c++;
}
}
}
The code at the end
flContainer.removeAllViews();
flContainer.startAnimation(slideup);
removes the view but fails to process the animation. I have tried using removeView but in that case the buttonclicks in the if statement fail to execute the second time. What am I missing here? How can I achieve it?

The answer is pretty simple. You have to remove the view after the animation is finished. This can be achieved pretty simple, first you have to set an animation listener for your animation and in the onAnimationEnd callback - which is called when the animation is finished - you remove the views.
EDIT:
Replace this:
flContainer.removeAllViews();
flContainer.startAnimation(slideup);
With this:
slideup.setAnimationListener(new Animation.AnimationListener() {
#Override
public void onAnimationStart(Animation animation) {
}
#Override
public void onAnimationEnd(Animation animation) {
flContainer.removeAllViews();
}
#Override
public void onAnimationRepeat(Animation animation) {
}
});
flContainer.startAnimation(slideup);
If there are any further problems let me know.

How can I animate an Android TextView without refreshing it, and fill it each time with new text from an array?

I am willing to create a news bar in android application and I used the animation to move TextView from left to right and fill it each round with a new text from array of strings. I faced a lot of problems and I used more than 5 ways but each one has a bad behaviour. the main problem is that when the animation ends it refreshes the textView and it appears like flashing which is not a user-friendly behaviour.
Here is a code snippet:
TextView my_text;
Animation slideRight;
Animation slideLeft;
String [] text = {"TwoOneOneOneOneOneOneOneOneOneTwo","OneTwoTwoTwoTwoTwoTwoTwoTwoTwoTwoOne",
"OneThreeThreeThreeThreeThreeThreeThreeOne","OneFourFourFourFourFourFourFourOne",
"OneFiveFiveFiveFiveFiveFiveFiveOne","OneSixSixSixSixSixSixSixOne",
"OneSevenSevenSevenSevenSevenSevenSeveOne","OneEightEightEightEightEightEightEightOne",
"OneNineNineNineNineNineNineNineOne"};
int arr_length;
int count = 0;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
arr_length = text.length;
slideRight = AnimationUtils.loadAnimation(this, android.R.anim.slide_out_right);
slideRight.setDuration(2000);
slideRight.setRepeatCount(Animation.INFINITE);
slideRight.setAnimationListener(slideRightListener);
slideLeft = AnimationUtils.loadAnimation(this, android.R.anim.slide_in_left);
slideLeft.setDuration(2000);
slideLeft.setAnimationListener(slideLeftListener);
my_text = (TextView) findViewById(R.id.textView1);
my_text.setVisibility(TextView.VISIBLE);
my_text.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
Toast.makeText(getApplicationContext(), my_text.getText(), Toast.LENGTH_SHORT).show();
}
});
slideLeft.setAnimationListener(slideLeftListener);
my_text.startAnimation(slideLeft);
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
AnimationListener slideLeftListener = new AnimationListener() {
#Override
public void onAnimationStart(Animation animation) {
my_text.setVisibility(TextView.VISIBLE);
}
#Override
public void onAnimationRepeat(Animation animation) {
my_text.setVisibility(TextView.VISIBLE);
}
#Override
public void onAnimationEnd(Animation animation) {
my_text.setVisibility(TextView.VISIBLE);
my_text.startAnimation(slideRight);
}
};
AnimationListener slideRightListener = new AnimationListener() {
#Override
public void onAnimationStart(Animation animation) {
my_text.setVisibility(TextView.VISIBLE);
}
#Override
public void onAnimationRepeat(Animation animation) {
my_text.setVisibility(TextView.VISIBLE);
}
#Override
public void onAnimationEnd(Animation animation) {
my_text.setVisibility(TextView.VISIBLE);
if(count<arr_length)
{
my_text.setText(text[count]);
count+=1;
my_text.startAnimation(slideLeft);
}
else
{
count=0;
my_text.setText(text[count]);
my_text.startAnimation(slideLeft);
}
}
};
}

I think ViewFlipper is more suitable for you.

Try adding setFillAfter(true) as that might stop the "refresh" behavior at the end of the Animation.

As I commented on #Bill above I realized that the refresh issue related to Android version.
I have tested the same code above on devices with Android Ice-Cream-Sandwich and it didn't "refresh".
If there is any solution on non-ICS I will accept it.

I've got this link and I found it great to me and can be customized as my requirements.
It uses HorizonalSlideshow.