How to add animation to a text view in android

Question

I have a TextView and I'm trying to add a fade in animation to it. My code is returning null and I don't understand why.

Here is my implementation

This is the fade_in.xml

    <alpha
            xmlns:android="http://schemas.android.com/apk/res/android"    android:fillAfter="true"
            android:duration="1000"
            android:fromAlpha="0.0"
            android:interpolator="@android:anim/accelerate_interpolator"
            android:toAlpha="1.0"/>

and here is how im using it in the corresponding activity

    tv= (TextView)findViewById(R.id.textView);
//-- the below line is returning null
            animation = AnimationUtils.loadAnimation(this,R.anim.fade_in);

            animation.setAnimationListener(new Animation.AnimationListener() {
                @Override
                public void onAnimationStart(Animation animation) {
                tv.setVisibility(View.VISIBLE);
                }

                @Override
                public void onAnimationEnd(Animation animation) {
                    Intent it  = new Intent(SplashActivity.this, MainActivity.class);
                    startActivity(it);
                }

                @Override
                public void onAnimationRepeat(Animation animation) {

                }
            });

            tv.startAnimation(animation);

Please provide the error log. – Manuel Nunes Dec 04 '15 at 13:11 — Manuel Nunes, Dec 04 '15 at 13:11

score 20 · Accepted Answer · edited Oct 11 '22 at 08:07

Android TextView Annimation example

XML

<?xml version="1.0" encoding="utf-8"?>

<set xmlns:android="http://schemas.android.com/apk/res/android">
<scale
      android:fromXScale="1.0"
      android:fromYScale="1.0"
      android:toXScale="2.0"
      android:toYScale="2.0"
      android:duration="3000" />
</set>

Code

private void RunAnimation() 
{
  Animation a = AnimationUtils.loadAnimation(this, R.anim.scale);
  a.reset();
  TextView tv = (TextView) findViewById(R.id.firstTextView);
  tv.clearAnimation();
  tv.startAnimation(a);
}

For More :

http://chiuki.github.io/advanced-android-textview/#/5

http://www.hascode.com/2010/09/playing-around-with-the-android-animation-framework/

I would recommend also using an interpolator, because else the animation will just jump from size 1 to 2 after 3 seconds. — Marie M., Jan 13 '21 at 11:55

Kanagalingam · Answer 2 · 2022-07-19T19:37:30.233

4

You can load animations from AnimationUtils class in Android and set it to a textview in android.

textview.startAnimation(AnimationUtils.loadAnimation(context, android.R.anim.fade_in));

and you can stop animation using,

textview.clearAnimation();

edited Jul 19 '22 at 19:37

answered Jul 19 '16 at 13:13

Kanagalingam

2,096
5
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can i set the animation speed of this Textview? Like i am using animation in my splash screen and my text is animated but its animating very fast. – Sunny Mar 20 '20 at 03:48

score 2 · Answer 3 · answered Dec 04 '15 at 13:25

2

Is your textview id correct?? First check if you are getting your textview id correctly in your app

answered Dec 04 '15 at 13:25

Vivek Mishra

5,669
9
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Based on comment in other answer - no, it is not correct: "java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.TextView.setAnimation(android.view.animation.Animation)' on a null" this should be the accepted answer – wfranczyk Dec 04 '15 at 13:31

score 0 · Answer 4 · answered Dec 04 '15 at 13:10

0

You need setAnimation in your TextView

Example:

tv.setAnimation( animation );

answered Dec 04 '15 at 13:10

dpulgarin

556
5
17

i have tried that also..but still it is saying the same thing Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.TextView.setAnimation(android.view.animation.Animation)' on a null – DeepakKUMARYadav Dec 04 '15 at 13:13

score 0 · Answer 5 · answered Nov 16 '16 at 15:55

0

Use Animator/AnimatorSet Animation is legacy code

answered Nov 16 '16 at 15:55

Duna

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How to add animation to a text view in android

5 Answers5

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