Android- Increasing text size in text view smoothly

Android- Increasing text size in text view smoothly - android

I want to increase/decrease the text size in text view but not by .setTextSize() method . Like when I click a button the size must change from one to another smoothly and not abruptly. The transition must be visible as it is increasing so that a good UI experience is obtained. I tried to use a loop where the size changes by small-small bits but thats also to quick to be visible. So please someone suggest me a method to do this. I am just a beginner in Android

This could be achieved with a ValueAnimator.
Try this :
final TextView tv = new TextView(getApplicationContext());
Button btnPlay = (Button) findViewById(R.id.btnPlay);
btnPlay.setOnClickListener(MainActivity.this);
final float startSize = 42; // Size in pixels
final float endSize = 12;
final int animationDuration = 600; // Animation duration in ms
ValueAnimator animator = ValueAnimator.ofFloat(startSize, endSize);
animator.setDuration(animationDuration);
animator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
#Override
public void onAnimationUpdate(ValueAnimator valueAnimator) {
float animatedValue = (float) valueAnimator.getAnimatedValue();
tv.setTextSize(animatedValue);
}
});
#Override
public void onClick(View view)
{
if(view == btnPlay)
{
animator.start();
}
}
Use this code in on click listner of button, where you want to achieve this.

You can perform this using View Animation.
You should refer it from here
create one textanim.xml inside tour res/anim folder. (here add anim folder first in res file if not created.)
your textanim.xml should be look like this.
<set android:shareInterpolator="false">
<scale
android:interpolator="#android:anim/accelerate_decelerate_interpolator"
android:fromXScale="1.0"
android:toXScale="1.4"
android:fromYScale="1.0"
android:toYScale="0.6"
android:pivotX="50%"
android:pivotY="50%"
android:fillAfter="false"
android:duration="700" />
<set android:interpolator="#android:anim/decelerate_interpolator">
<scale
android:fromXScale="1.4"
android:toXScale="0.0"
android:fromYScale="0.6"
android:toYScale="0.0"
android:pivotX="50%"
android:pivotY="50%"
android:startOffset="700"
android:duration="400"
android:fillBefore="false" />
<rotate
android:fromDegrees="0"
android:toDegrees="-45"
android:toYScale="0.0"
android:pivotX="50%"
android:pivotY="50%"
android:startOffset="700"
android:duration="400" />
</set>
</set>
Moving on to the associated java file (inside your Activity), you have to use this animation like this,
TextView mT = (TextView) findViewById(R.id.yourTextViewId);
Animation myAnim = AnimationUtils.loadAnimation(this, R.anim.textanim);
mText.startAnimation(myAnim);

Related

How to add a sequential animation on an imageview to scale up and scale down repeatedly in android

I am trying to do an animation on an imageview, were i need to scale up and scale down the image so that it will have a shadow feel effect for another animation.
I tried adding two xml in anim folder -
scale_up.xml
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
android:interpolator="#android:anim/linear_interpolator"
android:shareInterpolator="false">
<scale
android:duration="1250"
android:fromXScale="1.0"
android:fromYScale="1.0"
android:pivotX="50%"
android:pivotY="50%"
android:repeatCount="infinite"
android:repeatMode="restart"
android:toXScale="1.5"
android:toYScale="1.5" />
</set>
scale_down.xml
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
android:interpolator="#android:anim/linear_interpolator"
android:shareInterpolator="false">
<scale
android:duration="1250"
android:fromXScale="1.5"
android:fromYScale="1.5"
android:pivotX="50%"
android:pivotY="50%"
android:repeatCount="infinite"
android:repeatMode="restart"
android:toXScale="1.0"
android:toYScale="1.0" />
</set>
and in my activity class
AnimationSet s = new AnimationSet(false);
View shadowView = view.findViewById(R.id.shadowView);
final Animation scaleDownAnimation = AnimationUtils.loadAnimation(context, R.anim.scale_down);
final Animation scaleUpAnimation = AnimationUtils.loadAnimation(context, R.anim.scale_up);
s.addAnimation(scaleUpAnimation);
s.addAnimation(scaleDownAnimation);
shadowView.startAnimation(s);
But animation is not happening. What i am doing wrong? Anyone please help. Thanks

AnimationSet performs animation simultanuously, not sequentaly by default. So it does zoom in and zoom out at the same time. That's why you see no effect. But you can set a start offset to the animation:
AnimationSet s = new AnimationSet(false);
View shadowView = view.findViewById(R.id.shadowView);
final Animation scaleDownAnimation = AnimationUtils.loadAnimation(context, R.anim.scale_down);
final Animation scaleUpAnimation = AnimationUtils.loadAnimation(context, R.anim.scale_up);
scaleDownAnimation.setStartOffset(1250); //this line
s.addAnimation(scaleUpAnimation);
s.addAnimation(scaleDownAnimation);
shadowView.startAnimation(s

Why image rotation animation only works correctly for the first time

I have this simple arrow image rotation animation which works as intended only for the first time. from second time onward It's still do the rotation but without slow animation.
Here's the code in anim xml files
Rotate 180
<rotate xmlns:android="http://schemas.android.com/apk/res/android"
android:duration="1500"
android:fromDegrees="0"
android:toDegrees="180"
android:interpolator="#android:anim/linear_interpolator"
android:pivotX="50%"
android:pivotY="50%"
android:repeatCount="0"
android:fillAfter="true"
android:fillEnabled="true"/>
Rotate Revere
<rotate xmlns:android="http://schemas.android.com/apk/res/android"
android:duration="1500"
android:fromDegrees="180"
android:toDegrees="0"
android:interpolator="#android:anim/linear_interpolator"
android:pivotX="50%"
android:pivotY="50%"
android:repeatCount="0"
android:fillAfter="true"
android:fillEnabled="true"
/>
The image view inside card view.
<ImageView
android:id="#+id/creadit_card_next_image"
android:layout_width="#dimen/next_image_size"
android:layout_height="#dimen/next_image_size"
android:layout_marginEnd="#dimen/static_menu_primary_margin"
android:layout_marginTop="16dp"
android:rotation="-90"
android:src="#drawable/ic_navigate_next"
android:tint="#color/colorPrimary"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toTopOf="parent" />
Java code to trigger Animation.
private Animation rotatePlus180;
private Animation rotateMinus180;
private boolean creditDebitCardViewExpanded = true;
rotatePlus180 = AnimationUtils.loadAnimation(this, R.anim.rotate_plus_180);
rotateMinus180 = AnimationUtils.loadAnimation(this, R.anim.rotate_minus_180);
private void onClickCreditDebitCardView() {
creditDebitCardPaymentMethod.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
if (creditDebitCardViewExpanded) {
expandAnimation(paymentRecyclerView);
creditDebitCardViewExpanded = false;
creditCardNextImage.setAnimation(rotatePlus180);
} else {
collapseAnimation(paymentRecyclerView);
creditDebitCardViewExpanded = true;
creditCardNextImage.setAnimation(rotateMinus180);
CreditDebitLayoutContainer.setPadding(0, 0, 0, padding);
}
}
});
}

Instead of setAnimation use startAnimation
creditCardNextImage.startAnimation(rotatePlus180);
creditCardNextImage.startAnimation(rotateMinus180);
setAnimation seems to be called once you attach the animation to the view/ or when the view is added.
StartAnimation will be called all the time even if the view has already been added.

Animation scale to fit screen width

I need to have an animation that scales a view to the screen width over 1500 seconds.
I haven't got a clue how to achieve this. I searched for an hour now on the internet...
<set xmlns:android="http://schemas.android.com/apk/res/android"
android:fillEnabled="true"
android:fillAfter="true">
<scale
android:interpolator="#android:anim/accelerate_decelerate_interpolator"
android:fromXScale="0"
android:toXScale="?"
android:fromYScale="1.0"
android:toYScale="1.0"
android:fillAfter="false"
/>
</set>
The method where the animation gets called:
tab1.Click += delegate
{
ResetMenuItem();
animation = AnimationUtils.LoadAnimation(ApplicationContext, Resource.Animation.grow_anim1);
animation.Duration = duration;
// int width = Resources.DisplayMetrics.WidthPixels;
RelativeLayout.LayoutParams p = new RelativeLayout.LayoutParams((int)ConvertDpToPix(3f),RelativeLayout.LayoutParams.MatchParent);
selector1.LayoutParameters = p;
selector1.StartAnimation(animation);
animation.AnimationEnd+=delegate
{
drawer.CloseDrawers();
};
tabIndex=1;
};

I ended up solving this by using a thread to edit the width of the view.

Android animation scale onEnd blink

I have problem with scale in animation. Translate works fine, but when I add scale to my animation it dont come back to point of start and blink when animation starts again.
<set xmlns:android="http://schemas.android.com/apk/res/android"
android:interpolator="#android:anim/linear_interpolator">
<translate
android:fromYDelta="-150"
android:toYDelta="150"
android:fillAfter="true"
android:duration="1500"
/>
<scale
android:fillAfter="true"
android:fromXScale="1"
android:fromYScale="1"
android:toXScale="1.2"
android:toYScale="1.2"
android:duration="1500"
android:pivotX="50%"
android:pivotY="50%"
/>
</set>
<set xmlns:android="http://schemas.android.com/apk/res/android"
android:interpolator="#android:anim/linear_interpolator">
<translate
android:fromYDelta="150"
android:toYDelta="-150"
android:fillAfter="true"
android:duration="1500"
android:startOffset="1500"
/>
<scale
android:fillAfter="true"
android:fromXScale="1.2"
android:fromYScale="1.2"
android:toXScale="1"
android:toYScale="1"
android:duration="1500"
android:pivotX="50%"
android:pivotY="50%"
android:startOffset="1500"
/>
</set>
And Android code:
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
image = (ImageView) findViewById(R.id.image);
image.setImageResource(R.drawable.shape);
animation2 = AnimationUtils.loadAnimation(this, R.anim.moving_up);
animation3 = AnimationUtils.loadAnimation(this, R.anim.moving_down);
animation = new AnimationSet(true);
animation.addAnimation(animation2);
animation.addAnimation(animation3);
animation.setAnimationListener(this);
//animation.setRepeatCount(Animation.INFINITE);
animation.setFillEnabled(true);
animation.setFillAfter(true);
image.startAnimation(this.animation);
}
#Override
public void onAnimationEnd(Animation animation) {
image.clearAnimation();
image.startAnimation(animation);
}
Shape is a xml Rect.

animation.setFillAfter(true);
will force the image to stay at animated position after animation gets completed.
Set it to false if you want to return the image to starting position.
animation.setFillAfter(false);

If someone would like to know the answer
private void animateImage(){
float x = 1;
float scale = 1.1f;
x = (imageViewImage.getHeight()*1.1f - imageViewImage.getHeight())/2;
imageViewImage.animate().translationY(x).scaleX(scale).scaleY(scale).setDuration(8000).withEndAction(new Runnable() {
#Override
public void run() {
imageViewImage.animate().translationY(0).scaleX(1f).scaleY(1f).setDuration(8000).withEndAction(new Runnable() {
#Override
public void run() {
animateImage();
}
});
}
});
}

shaking / wobble view animation in android

I created an anim.xml file such as below to shake imageview like IOS icon shaking in android.
However it does not provide me same result.
Is there any better idea?
<?xml version="1.0" encoding="utf-8"?>
<rotate xmlns:android="http://schemas.android.com/apk/res/android"
android:duration="300"
android:fromDegrees="-2"
android:pivotX="50%"
android:pivotY="50%"
android:repeatCount="infinite"
android:toDegrees="2" />

Try setting android:repeatMode="reverse". Below animation gives a very reasonable immitation on my Galaxy Nexus. Obviously you can fine tune the parameters to your own liking.
<?xml version="1.0" encoding="utf-8"?>
<rotate xmlns:android="http://schemas.android.com/apk/res/android"
android:duration="100"
android:fromDegrees="-5"
android:pivotX="50%"
android:pivotY="50%"
android:repeatCount="infinite"
android:repeatMode="reverse"
android:toDegrees="5" />

Nice shake animation;
res/anim/shake.xml
<set xmlns:android="http://schemas.android.com/apk/res/android">
<translate android:duration="150"
android:fromXDelta="-10%"
android:repeatCount="5"
android:repeatMode="reverse"
android:toXDelta="10%"/>
</set>
How to use it
final Animation animShake = AnimationUtils.loadAnimation(this, R.anim.shake);
btn_done = (Button) findViewById(R.id.btn_act_confirm_done);
btn_done.startAnimation(animShake);
How to use it (Simpler version):
btn_done.startAnimation(AnimationUtils.loadAnimation(this,R.anim.shake));

You could try this:
shake.xml
<translate xmlns:android="http://schemas.android.com/apk/res/android"
android:fromXDelta="0"
android:toXDelta="10"
android:duration="1000"
android:interpolator="#anim/cycle_7" />
cycle_7.xml
<cycleInterpolator xmlns:android="http://schemas.android.com/apk/res/android"
android:cycles="7" />

try to use this one:
<set xmlns:android="http://schemas.android.com/apk/res/android">
<rotate
android:duration="70"
android:fromDegrees="-5"
android:pivotX="50%"
android:pivotY="50%"
android:repeatCount="5"
android:repeatMode="reverse"
android:interpolator="#android:anim/linear_interpolator"
android:toDegrees="5" />
<translate
android:fromXDelta="-10"
android:toXDelta="10"
android:repeatCount="5"
android:repeatMode="reverse"
android:interpolator="#android:anim/linear_interpolator"
android:duration="70" />
</set>

To make shake effect like this
First define shake animation inside anim folder as shake.xml
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
<rotate
android:duration="70"
android:fromDegrees="-5"
android:interpolator="#android:anim/linear_interpolator"
android:pivotX="50%"
android:pivotY="50%"
android:repeatCount="5"
android:repeatMode="reverse"
android:toDegrees="5" />
<translate
android:duration="70"
android:fromXDelta="-10"
android:interpolator="#android:anim/linear_interpolator"
android:repeatCount="5"
android:repeatMode="reverse"
android:toXDelta="10" />
</set>
Then in code
if (TextUtils.isEmpty(phone.getText())
|| phone.getText().length() < 10)
{
//shake animation
phone.startAnimation(AnimationUtils.loadAnimation(getActivity(), R.anim.shake));
}

I created a shake effect on Android and posted in GitHub. See if it works better.
https://github.com/teoinke/ShakeAnimation
Relevant code:
<?xml version="1.0" encoding="utf-8"?>
<set
xmlns:android="http://schemas.android.com/apk/res/android"
android:interpolator="#android:anim/overshoot_interpolator"
android:fillAfter="true">
<translate
android:startOffset="100"
android:fromXDelta="0%p"
android:toXDelta="10%p"
android:duration="50" />
<translate
android:startOffset="150"
android:fromXDelta="0%p"
android:toXDelta="-25%p"
android:duration="110" />
<translate
android:startOffset="260"
android:fromXDelta="0%p"
android:toXDelta="25%p"
android:duration="120" />
<translate
android:startOffset="380"
android:fromXDelta="0%p"
android:toXDelta="-20%p"
android:duration="130" />
<translate
android:startOffset="510"
android:fromXDelta="0%p"
android:toXDelta="10%p"
android:duration="140" />
</set>

This one works pretty well (though not perfectly) as an iOS "incorrect PIN" shaking clone:
final float FREQ = 3f;
final float DECAY = 2f;
// interpolator that goes 1 -> -1 -> 1 -> -1 in a sine wave pattern.
TimeInterpolator decayingSineWave = new TimeInterpolator() {
#Override
public float getInterpolation(float input) {
double raw = Math.sin(FREQ * input * 2 * Math.PI);
return (float)(raw * Math.exp(-input * DECAY));
}
};
shakeField.animate()
.xBy(-100)
.setInterpolator(decayingSineWave)
.setDuration(500)
.start();

/**
*
* #param view view that will be animated
* #param duration for how long in ms will it shake
* #param offset start offset of the animation
* #return returns the same view with animation properties
*/
public static View makeMeShake(View view, int duration, int offset) {
Animation anim = new TranslateAnimation(-offset,offset,0,0);
anim.setDuration(duration);
anim.setRepeatMode(Animation.REVERSE);
anim.setRepeatCount(5);
view.startAnimation(anim);
return view;
}
use:
TextView tv;
makeMeShake(tv,20,5); // it will shake quite fast

For Kotlin users:
First create an Animation resource file called shake.xml. Right click on the res folder in Android Studio, then click New > Android Resource File > enter shake for the file name and select Animation for Resource type dropdown. Click OK.
Inside shake.xml paste the following:
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
<translate android:duration="200"
android:fromXDelta="-5%"
android:repeatCount="3"
android:repeatMode="reverse"
android:toXDelta="5%"/>
</set>
Now just call it on a view!
From within a fragment:
myView.startAnimation(AnimationUtils.loadAnimation(requireContext(), R.anim.shake))
From within an activity:
myView.startAnimation(AnimationUtils.loadAnimation(this, R.anim.shake))
(note - myView is the ID given to the view that you want to animate)
If you would like to fine-tune the animation, simply modify the values in shake.xml.

I created a very good approximation of iOS shaking (when you long press a icon to remove app from homescreen). You have to apply inside your code, programmatically, as it requires random number generation:
int dur1 = 70 + (int)(Math.random() * 30);
int dur2 = 70 + (int)(Math.random() * 30);
// Create an animation instance
Animation an = new RotateAnimation(-3, 3, Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.5f);
// Set the animation's parameters
an.setDuration(dur1); // duration in ms
an.setRepeatCount(-1); // -1 = infinite repeated
an.setRepeatMode(Animation.REVERSE);
an.setFillAfter(true); // keep rotation after animation
// Create an animation instance
Animation an2 = new TranslateAnimation(-TranslateAnimation.RELATIVE_TO_SELF,0.02f,
TranslateAnimation.RELATIVE_TO_SELF,0.02f,
-TranslateAnimation.RELATIVE_TO_SELF,0.02f,
TranslateAnimation.RELATIVE_TO_SELF,0.02f);
// Set the animation's parameters
an2.setDuration(dur2); // duration in ms
an2.setRepeatCount(-1); // -1 = infinite repeated
an2.setRepeatMode(Animation.REVERSE);
an2.setFillAfter(true); // keep rotation after animation
AnimationSet s = new AnimationSet(false);//false means don't share interpolators
s.addAnimation(an);
s.addAnimation(an2);
// Apply animation to image view
itemView.setAnimation(s);
This code was design to be applied inside an adapter's gridview (getView), but you can apply to any view by changing the last line to:
yourViewName.setAnimations(s);

Kotlin version of lincolnq's answer
val FREQ = 3f
val DECAY = 2f
val decayingSineWave = TimeInterpolator { input ->
val raw = sin(FREQ * input * 2 * Math.PI)
(raw * exp((-input * DECAY).toDouble())).toFloat()
}
// where binding.loginFrame is the view you wanna shake
binding.loguinFrame.animate()
.withEndAction{
// here you can clear the fields after the shake
}
.xBy(-100f)
.setInterpolator(decayingSineWave)
.setDuration(500)
.start()

IOS wobble animation is not that simple try to change pivot x and y randomly when rotate. You should change the value programatically though. May be you also can use translate animation simultaneously

Banging my head for more than two hours, I knew how to shake and wobble an view.
Unfortunately the accepted answer won't work apart from onCreateView of fragment.
Example if you have onClick method and inside in it. You have animation like below it won't work.
Please go through the code.
DoneStart.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View view) {
register(view);
}
});
The register method has some checks like below code
private void register(View view) {
String type = typedThings.getText.toString();
String km = Km_Now.getText().toString();
if (serviceType == null) {
animationServiceList = AnimationUtils.loadAnimation(getActivity(), R.anim.shake_wobble);
silverServiceButton.setAnimation(animationServiceList);
generalServiceButton.setAnimation(animationServiceList);
platinumServiceButton.setAnimation(animationServiceList);
animationServiceList.start();
} else if (km == null) {
animationEditText = AnimationUtils.loadAnimation(getActivity(), R.anim.shake_wobble);
Km_Now.setAnimation(animationEditText);
animationEditText.start();
}
The Call animationServiceList.start(); will never be called,
SOLUTION: Use PropertyAnimator like ObjectAnimator.

Other answers are correct as well but this is a bit smoother than them since it uses an interpolator produces smooth numbers for back an forth movement
public class WobblyView extends ImageView implements ValueAnimator.AnimatorUpdateListener {
private final ValueAnimator va = ValueAnimator.ofInt(-10, 10);
public WobblyView(Context context) {
this(context, null);
}
public WobblyView(Context context, #Nullable AttributeSet attrs) {
this(context, attrs, 0);
}
public WobblyView(Context context, #Nullable AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
setAdjustViewBounds(true);
setImageResource(R.drawable.ic_logo);
va.setInterpolator(new AccelerateDecelerateInterpolator());
va.setRepeatMode(ValueAnimator.REVERSE);
va.setRepeatCount(ValueAnimator.INFINITE);
va.setDuration(1000);
}
#Override
protected void onAttachedToWindow() {
super.onAttachedToWindow();
va.addUpdateListener(this);
va.start();
}
#Override
protected void onDetachedFromWindow() {
super.onDetachedFromWindow();
va.removeUpdateListener(this);
}
#Override
public void onAnimationUpdate(ValueAnimator animation) {
int heading = (int) animation.getAnimatedValue();
setRotation(heading);
}
}

Develop Reference

The Android operating system is a mobile operating system that was developed by Google (GOOGL?) to be primarily used for touchscreen devices, cell phones, and tablets.

Android- Increasing text size in text view smoothly - android

Related

How to add a sequential animation on an imageview to scale up and scale down repeatedly in android

Why image rotation animation only works correctly for the first time

Animation scale to fit screen width

Android animation scale onEnd blink

shaking / wobble view animation in android

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