i have download your demo,and run it ,but when i touch one list item,it is broken.and show the NullPointerException . i found if i set repeat 1,it is ok,but if i set others ,it is broken.

Greetings,

I have been browsing the code for a few hours, and I couldn't find a way to use the library with custom animations, meaning that we are limited by the animations provided in the Techniques enum.

Is there any way I can extends BaseViewAnimator to provide custom (programmer defined) animations to be used within the library or do I need to roll old fashioned animations manually?

Thanks Robert

Hi. This is a very nice library to use animation in android. But why it is different effect in my project ？such as DropOutAnimation. I import it by gradle. Can you help me to use if you have time ？ Thanks

Hello, First i wanted to say thanks for the library, it is truly useful. I do have 1 question though. After adding this library to my project my app icon reverts back to the stock android icon. My icon is named ic_launcher2, and the manifest merger forces me to change it to ic_launcher. After that my icon no longer shows up, and the android one does. Any ideas why and how to fix it? I'm using Android studio btw.

Thanks Karsten.

I'm trying to use SlideInLeft when the visibility is set for a particular view. for some inexplicable reason, the first time this code executes, the view fades in rather than slides in, I thought perhaps if could be an issue with android:animateLayoutChanges="true", however I have explicitly set it to false.

Any ideas? I've tried various hacks to achieve the desired behavior, but nothing has thus far worked.

    public void setNewLabelVisible(boolean isVisible) {
        this.layoutNewLabel.setVisibility(isVisible ? VISIBLE : INVISIBLE);
        if (isVisible) {
            YoYo.with(Techniques.SlideInLeft)
                    .duration(1000)
                    .playOn(layoutNewLabel);
        }
    }

I tried a lot of interpolators and None of them have any effect on the animations. I'm doing it this way:

YoYo.with(Techniques.SlideOutDown)
    .duration(200)
    .interpolate(new BounceInterpolator())    // Nothing works here
    .withListener(new Animator.AnimatorListener() {
    @Override
    public void onAnimationStart(Animator animation) { }

        @Override
        public void onAnimationEnd(Animator animation) { }

        @Override
        public void onAnimationCancel(Animator animation) { }

        @Override
        public void onAnimationRepeat(Animator animation) { }
    })
    .playOn(view);

I think it might be related to AnimationComposer not calling BaseViewAnimator's setInterpolator().

As it stands, it is a copyright violation (in most countries) for anyone to use your code, as you have not licensed it.

Please consider applying a license to your project, such as the Apache Software License 2.0, to state the terms under which people can use your code. You will see the Apache license used by most libraries for Android, including the NineOldAndroids project upon which your library depends.

Hi Daimajia, thanks for an awesome library. While adding the library in my project "Google Play Store" rejects my app with the following message "We detected that at least one APK version in your recent upload isn’t using Android Pay correctly. Including APK version(s) 208 in your submission could cause your app to be rejected for violating our Payments policy". I know that AndroidViewAnimations is nothing to do with "Android Pay" up to my knowledge. Kindly help me to resolve the issue. Thanks in advance.

Hi

When I use Progards, your library couldn't be referenced.

I have already added -keep class com.daimajia.androidanimations.** { *; } into proguard-rules, but it doesn't work. Is there anyone know how to fix this?

Please add to the library move animation. For example there is an image on the screen and invisible container. The image should move in the container. Thanks!

When the application executes the code, the app stops and throws this error.

java.lang.NoClassDefFoundError: Failed resolution of: Lcom/daimajia/easing/Skill;
at com.daimajia.androidanimations.library.specials.in.DropOutAnimator.prepare(DropOutAnimator.java:15)
        at com.daimajia.androidanimations.library.BaseViewAnimator.setTarget(BaseViewAnimator.java:54)
        at com.daimajia.androidanimations.library.YoYo.play(YoYo.java:254)
        at com.daimajia.androidanimations.library.YoYo.access$1500(YoYo.java:38)
        at com.daimajia.androidanimations.library.YoYo$AnimationComposer.playOn(YoYo.java:215)
        at home.lernesto.budgetquick.StartActivity.onResume(StartActivity.java:48)
        at android.app.Instrumentation.callActivityOnResume(Instrumentation.java:1361)
        at android.app.Activity.performResume(Activity.java:7344)
        at android.app.ActivityThread.performResumeActivity(ActivityThread.java:3763)
        at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:3828)
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3036)
        at android.app.ActivityThread.-wrap11(Unknown Source:0)
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1696)
        at android.os.Handler.dispatchMessage(Handler.java:105)
        at android.os.Looper.loop(Looper.java:164)
        at android.app.ActivityThread.main(ActivityThread.java:6938)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:327)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1374)
     Caused by: java.lang.ClassNotFoundException: Didn't find class "com.daimajia.easing.Skill" on path: DexPathList[[zip file "/data/app/home.lernesto.budgetquick-L0NXYaChdp1szfwFsYZ6YQ==/base.apk"],nativeLibraryDirectories=[/data/app/home.lernesto.budgetquick-L0NXYaChdp1szfwFsYZ6YQ==/lib/arm64, /system/lib64, /system/vendor/lib64]]
        at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:93)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:379)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:312)
        at com.daimajia.androidanimations.library.specials.in.DropOutAnimator.prepare(DropOutAnimator.java:15) 
        at com.daimajia.androidanimations.library.BaseViewAnimator.setTarget(BaseViewAnimator.java:54) 
        at com.daimajia.androidanimations.library.YoYo.play(YoYo.java:254) 
        at com.daimajia.androidanimations.library.YoYo.access$1500(YoYo.java:38) 
        at com.daimajia.androidanimations.library.YoYo$AnimationComposer.playOn(YoYo.java:215) 
        at home.lernesto.budgetquick.StartActivity.onResume(StartActivity.java:48) 
        at android.app.Instrumentation.callActivityOnResume(Instrumentation.java:1361) 
        at android.app.Activity.performResume(Activity.java:7344) 
        at android.app.ActivityThread.performResumeActivity(ActivityThread.java:3763) 
        at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:3828) 
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3036) 
        at android.app.ActivityThread.-wrap11(Unknown Source:0) 
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1696) 
        at android.os.Handler.dispatchMessage(Handler.java:105) 
        at android.os.Looper.loop(Looper.java:164) 
        at android.app.ActivityThread.main(ActivityThread.java:6938) 
        at java.lang.reflect.Method.invoke(Native Method) 
        at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:327) 
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1374) 

An here my code. public class StartActivity extends AppCompatActivity { // Constant private static final int TIME_LIFE_ACTIVITY = 2500; private static final int TIME_ANIMATION= 2000;

// Visual Variables private View imgvAppName;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
    setContentView(R.layout.activity_start);

// To link file XML imgvAppName = findViewById(R.id.imgv_app_name);

    TimerTask task = new TimerTask() {
        @Override
        public void run() {
            startActivity(new Intent(StartActivity.this, MainActivity.class));
            finish();
        }
    };

    Timer timer = new Timer();
    timer.schedule(task, TIME_LIFE_ACTIVITY);
}

@Override
protected void onResume() {
    super.onResume();
    YoYo.with(Techniques.DropOut).duration(TIME_ANIMATION).playOn(imgvAppName);
}

I got some trouble when try to use YoYoString to control animation. When i assign YoYoString, the animation auto run. Can some one explain me the problem, sorry for my bad english

App loads in phone but when pressing the button to start animation program crashes and closes. The phone displays message that the app "has a bug" and crashed. I've checked code against many online tutorials and cannot locate the issue.

MainActivity.java

package com.example.textreader6;

import androidx.appcompat.app.AppCompatActivity;

import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;

import com.daimajia.androidanimations.library.Techniques;
import com.daimajia.androidanimations.library.YoYo;

public class MainActivity extends AppCompatActivity {
    Button button;
    TextView textView;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        button = findViewById(R.id.btn);
        textView = findViewById(R.id.textview);

        button.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                YoYo.with(Techniques.Swing).duration(1000).repeat(1).playOn(textView);
            }
        });
    }
}

build.gradle:

dependencies {

    implementation 'androidx.appcompat:appcompat:1.4.1'
    implementation 'com.google.android.material:material:1.6.0'
    implementation 'androidx.constraintlayout:constraintlayout:2.1.4'

    implementation 'com.daimajia.easing:library:2.0@aar'
    implementation 'com.daimajia.androidanimations:library:2.3@aar'

    testImplementation 'junit:junit:4.13.2'
    androidTestImplementation 'androidx.test.ext:junit:1.1.3'
    androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'
}

activity_main.xml:

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:gravity="center"
    android:orientation="vertical"
    tools:context=".MainActivity">

    <TextView
        android:id="@+id/textview"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentEnd="true"
        android:text="Hello World!"
        android:textSize="30sp" />

    <Button
        android:id="@+id/btn"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentStart="true"
        android:layout_alignParentEnd="true"
        android:layout_alignParentBottom="true"
        android:text="Button" />
</RelativeLayout>

Hi! This is my code. I want to play an animation on the fab every time it is pressed but for some reason, it is not doing anything.

_binding!!.floatingActionButton.setOnClickListener{
            YoYo.with(Techniques.Shake)
                .duration(700)
                .repeat(5)
                .playOn(_binding!!.floatingActionButton)
        }

@daimajia I get an error:

• Failed to resolve: com.daimajia.easing:library:2.4@aar
• Failed to resolve: com.daimajia.androidanimations:library:2.4@aar when using this library with new version catalog on gradle 7+

I think it's related to aar being deprecated, if I used it without version catalog it's working fine

Originally posted by @JosephSanjaya in https://github.com/daimajia/AndroidViewAnimations/issues/12#issuecomment-921344169

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