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An Android AnimatedVectorDrawable implementation of https://dribbble.com/shots/2470871-Endless-Pin-Jump as discussed here https://www.reddit.com/r/androiddev/comments/5emjwa/my_designer_asked_me_for_fancy_loading_animations/ It looks like this: http://imgur.com/Avraqij For a full write-up, see https://medium.com/@crafty/animation-jump-through-86…
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<?xml version="1.0" encoding="utf-8"?> | |
<!-- | |
Copyright 2016 Google Inc. | |
Licensed under the Apache License, Version 2.0 (the "License"); | |
you may not use this file except in compliance with the License. | |
You may obtain a copy of the License at | |
http://www.apache.org/licenses/LICENSE-2.0 | |
Unless required by applicable law or agreed to in writing, software | |
distributed under the License is distributed on an "AS IS" BASIS, | |
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
See the License for the specific language governing permissions and | |
limitations under the License. | |
--> | |
<animated-vector | |
xmlns:android="http://schemas.android.com/apk/res/android" | |
xmlns:aapt="http://schemas.android.com/aapt"> | |
<aapt:attr name="android:drawable"> | |
<vector | |
android:width="400dp" | |
android:height="300dp" | |
android:viewportWidth="800" | |
android:viewportHeight="600"> | |
<path | |
android:name="horizon" | |
android:pathData="M189,409.5C189,409.5 294.7,409.6 411.2,409.5C527.8,409.4 649.2,409 649.2,409" | |
android:strokeColor="#E2E2E2" | |
android:strokeLineCap="square" | |
android:strokeWidth="1" /> | |
<group android:name="dots"> | |
<path | |
android:name="dot_1" | |
android:pathData="M363.5 409a9.5 9.5 0 0 1 -9.5 9.5 9.5 9.5 0 0 1 -9.5 -9.5 9.5 9.5 0 0 1 9.5 -9.5 9.5 9.5 0 0 1 9.5 9.5z" | |
android:fillColor="@color/dot" /> | |
<path | |
android:name="dot_2" | |
android:pathData="M600 409a9.5 9.5 0 0 1 -9.5 9.5 9.5 9.5 0 0 1 -9.5 -9.5 9.5 9.5 0 0 1 9.5 -9.5 9.5 9.5 0 0 1 9.5 9.5z" | |
android:fillColor="@color/dot" /> | |
<path | |
android:name="dot_3" | |
android:pathData="M843.5 409A16.5 16.5 0 0 1 827 425.5 16.5 16.5 0 0 1 810.5 409 16.5 16.5 0 0 1 827 392.5 16.5 16.5 0 0 1 843.5 409Z" | |
android:fillColor="@color/pin" /> | |
<path | |
android:name="dot_4" | |
android:pathData="M1073 409a9.5 9.5 0 0 1 -9.5 9.5 9.5 9.5 0 0 1 -9.5 -9.5 9.5 9.5 0 0 1 9.5 -9.5 9.5 9.5 0 0 1 9.5 9.5z" | |
android:fillColor="@color/dot" /> | |
<path | |
android:name="dot_5" | |
android:pathData="M1319.5 409a9.5 9.5 0 0 1 -9.5 9.5 9.5 9.5 0 0 1 -9.5 -9.5 9.5 9.5 0 0 1 9.5 -9.5 9.5 9.5 0 0 1 9.5 9.5z" | |
android:fillColor="@color/dot" /> | |
</group> | |
<path | |
android:name="pin" | |
android:pathData="@string/pin_path_1" | |
android:fillColor="@color/pin" /> | |
</vector> | |
</aapt:attr> | |
<target android:name="pin"> | |
<aapt:attr name="android:animation"> | |
<!-- This anim makes the pin jump 3 times. Each jump is performed by morphing the path | |
of the pin between 5 different 'poses'. --> | |
<set android:ordering="sequentially"> | |
<!-- Jump 1 --> | |
<objectAnimator | |
android:propertyName="pathData" | |
android:valueFrom="@string/pin_path_1" | |
android:valueTo="@string/pin_path_5" | |
android:duration="120" | |
android:interpolator="@android:interpolator/linear_out_slow_in" | |
android:valueType="pathType" /> | |
<objectAnimator | |
android:propertyName="pathData" | |
android:valueFrom="@string/pin_path_5" | |
android:valueTo="@string/pin_path_9" | |
android:duration="120" | |
android:interpolator="@android:interpolator/fast_out_slow_in" | |
android:valueType="pathType" /> | |
<objectAnimator | |
android:propertyName="pathData" | |
android:valueFrom="@string/pin_path_9" | |
android:valueTo="@string/pin_path_13" | |
android:duration="120" | |
android:interpolator="@android:interpolator/fast_out_slow_in" | |
android:valueType="pathType" /> | |
<objectAnimator | |
android:propertyName="pathData" | |
android:valueFrom="@string/pin_path_13" | |
android:valueTo="@string/pin_path_19" | |
android:duration="150" | |
android:interpolator="@android:interpolator/fast_out_slow_in" | |
android:valueType="pathType" /> | |
<objectAnimator | |
android:propertyName="pathData" | |
android:valueFrom="@string/pin_path_19" | |
android:valueTo="@string/pin_path_1" | |
android:duration="180" | |
android:interpolator="@android:interpolator/fast_out_linear_in" | |
android:valueType="pathType" /> | |
<!-- Jump 2 --> | |
<objectAnimator | |
android:propertyName="pathData" | |
android:valueFrom="@string/pin_path_1" | |
android:valueTo="@string/pin_path_5" | |
android:duration="120" | |
android:interpolator="@android:interpolator/linear_out_slow_in" | |
android:valueType="pathType" /> | |
<objectAnimator | |
android:propertyName="pathData" | |
android:valueFrom="@string/pin_path_5" | |
android:valueTo="@string/pin_path_9" | |
android:duration="120" | |
android:interpolator="@android:interpolator/fast_out_slow_in" | |
android:valueType="pathType" /> | |
<objectAnimator | |
android:propertyName="pathData" | |
android:valueFrom="@string/pin_path_9" | |
android:valueTo="@string/pin_path_13" | |
android:duration="120" | |
android:interpolator="@android:interpolator/fast_out_slow_in" | |
android:valueType="pathType" /> | |
<objectAnimator | |
android:propertyName="pathData" | |
android:valueFrom="@string/pin_path_13" | |
android:valueTo="@string/pin_path_19" | |
android:duration="150" | |
android:interpolator="@android:interpolator/fast_out_slow_in" | |
android:valueType="pathType" /> | |
<objectAnimator | |
android:propertyName="pathData" | |
android:valueFrom="@string/pin_path_19" | |
android:valueTo="@string/pin_path_1" | |
android:duration="180" | |
android:interpolator="@android:interpolator/fast_out_linear_in" | |
android:valueType="pathType" /> | |
<!-- Jump 3 --> | |
<objectAnimator | |
android:propertyName="pathData" | |
android:valueFrom="@string/pin_path_1" | |
android:valueTo="@string/pin_path_5" | |
android:duration="120" | |
android:interpolator="@android:interpolator/linear_out_slow_in" | |
android:valueType="pathType" /> | |
<objectAnimator | |
android:propertyName="pathData" | |
android:valueFrom="@string/pin_path_5" | |
android:valueTo="@string/pin_path_9" | |
android:duration="120" | |
android:interpolator="@android:interpolator/fast_out_slow_in" | |
android:valueType="pathType" /> | |
<objectAnimator | |
android:propertyName="pathData" | |
android:valueFrom="@string/pin_path_9" | |
android:valueTo="@string/pin_path_13" | |
android:duration="120" | |
android:interpolator="@android:interpolator/fast_out_slow_in" | |
android:valueType="pathType" /> | |
<objectAnimator | |
android:propertyName="pathData" | |
android:valueFrom="@string/pin_path_13" | |
android:valueTo="@string/pin_path_19" | |
android:duration="150" | |
android:interpolator="@android:interpolator/fast_out_slow_in" | |
android:valueType="pathType" /> | |
<objectAnimator | |
android:propertyName="pathData" | |
android:valueFrom="@string/pin_path_19" | |
android:valueTo="@string/pin_path_1" | |
android:duration="180" | |
android:interpolator="@android:interpolator/fast_out_linear_in" | |
android:valueType="pathType" /> | |
</set> | |
</aapt:attr> | |
</target> | |
<target android:name="dots"> | |
<aapt:attr name="android:animation"> | |
<!-- This animation moves the dots leftward. The trick is that there are actually 5 dots | |
in the image (2 grey, a red then 2 more grey). By correctly timing the loop this | |
makes it look like an uninterrupted sequence. --> | |
<objectAnimator | |
android:propertyName="translateX" | |
android:valueFrom="0" | |
android:valueTo="-710" | |
android:duration="2070" | |
android:interpolator="@android:interpolator/linear" /> | |
</aapt:attr> | |
</target> | |
<target android:name="dot_1"> | |
<aapt:attr name="android:animation"> | |
<!-- Fade out dot 1 as it exits the scene --> | |
<objectAnimator | |
android:propertyName="fillAlpha" | |
android:valueFrom="1" | |
android:valueTo="0" | |
android:startOffset="460" | |
android:duration="60" | |
android:interpolator="@android:interpolator/linear" /> | |
</aapt:attr> | |
</target> | |
<target android:name="dot_2"> | |
<aapt:attr name="android:animation"> | |
<!-- Fade out dot 2 as it exits the scene --> | |
<objectAnimator | |
android:propertyName="fillAlpha" | |
android:valueFrom="1" | |
android:valueTo="0" | |
android:startOffset="1150" | |
android:duration="60" | |
android:interpolator="@android:interpolator/linear" /> | |
</aapt:attr> | |
</target> | |
<target android:name="dot_3"> | |
<aapt:attr name="android:animation"> | |
<!-- Fade dot 3 in as it enters the scene and out as it exits --> | |
<set> | |
<objectAnimator | |
android:propertyName="fillAlpha" | |
android:valueFrom="0" | |
android:valueTo="1" | |
android:startOffset="420" | |
android:duration="60" | |
android:interpolator="@android:interpolator/linear" /> | |
<objectAnimator | |
android:propertyName="fillAlpha" | |
android:valueFrom="1" | |
android:valueTo="0" | |
android:startOffset="1840" | |
android:duration="60" | |
android:interpolator="@android:interpolator/linear" /> | |
</set> | |
</aapt:attr> | |
</target> | |
<target android:name="dot_4"> | |
<aapt:attr name="android:animation"> | |
<!-- Fade dot 4 in as it enters the scene --> | |
<objectAnimator | |
android:name="dot_4" | |
android:propertyName="fillAlpha" | |
android:valueFrom="0" | |
android:valueTo="1" | |
android:startOffset="1110" | |
android:duration="60" | |
android:interpolator="@android:interpolator/linear" /> | |
</aapt:attr> | |
</target> | |
<target android:name="dot_5"> | |
<aapt:attr name="android:animation"> | |
<!-- Fade dot 5 in as it enters the scene --> | |
<objectAnimator | |
android:name="dot_5" | |
android:propertyName="fillAlpha" | |
android:valueFrom="0" | |
android:valueTo="1" | |
android:startOffset="1800" | |
android:duration="60" | |
android:interpolator="@android:interpolator/linear" /> | |
</aapt:attr> | |
</target> | |
</animated-vector> |
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/* | |
* Copyright 2016 Google Inc. | |
* | |
* Licensed under the Apache License, Version 2.0 (the "License"); | |
* you may not use this file except in compliance with the License. | |
* You may obtain a copy of the License at | |
* | |
* http://www.apache.org/licenses/LICENSE-2.0 | |
* | |
* Unless required by applicable law or agreed to in writing, software | |
* distributed under the License is distributed on an "AS IS" BASIS, | |
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
* See the License for the specific language governing permissions and | |
* limitations under the License. | |
*/ | |
package com.example.endlesspinjump; | |
import android.app.Activity; | |
import android.graphics.drawable.Animatable; | |
import android.graphics.drawable.Animatable2; | |
import android.graphics.drawable.AnimatedVectorDrawable; | |
import android.graphics.drawable.Drawable; | |
import android.os.Bundle; | |
import android.widget.ImageView; | |
public class MainActivity extends Activity { | |
@Override | |
protected void onCreate(Bundle savedInstanceState) { | |
super.onCreate(savedInstanceState); | |
setContentView(R.layout.activity_main); | |
ImageView iv = (ImageView) findViewById(R.id.pin); | |
final AnimatedVectorDrawable avd = (AnimatedVectorDrawable) iv.getDrawable(); | |
avd.registerAnimationCallback(new Animatable2.AnimationCallback() { | |
@Override | |
public void onAnimationEnd(Drawable drawable) { | |
avd.start(); | |
} | |
}); | |
avd.start(); | |
} | |
} |
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<?xml version="1.0" encoding="utf-8"?> | |
<!-- | |
Copyright 2016 Google Inc. | |
Licensed under the Apache License, Version 2.0 (the "License"); | |
you may not use this file except in compliance with the License. | |
You may obtain a copy of the License at | |
http://www.apache.org/licenses/LICENSE-2.0 | |
Unless required by applicable law or agreed to in writing, software | |
distributed under the License is distributed on an "AS IS" BASIS, | |
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
See the License for the specific language governing permissions and | |
limitations under the License. | |
--> | |
<resources> | |
<!-- pin poses --> | |
<string name="pin_path_1">M412.7,238.9C381,238.9 356.8,261.8 356.8,294.6C356.8,329.7 407.7,408.7 409.2,408.8C410.7,408.9 469.4,328.1 469.4,294.6C469.4,261.8 444.5,238.9 412.7,238.9ZM412.7,324.3C397.2,324.3 384.7,311.3 384.7,295.3C384.7,279.3 397.2,266.3 412.7,266.3C428.2,266.3 440.8,279.3 440.8,295.3C440.8,311.3 428.2,324.3 412.7,324.3Z</string> | |
<string name="pin_path_5">M406.7,247.6C374.9,247.6 350.4,270.5 350.4,303.4C350.4,335.9 406.9,400.5 406.1,408.7C416,408.7 463.4,339.3 463.4,303.4C463.4,270.5 438.4,247.6 406.7,247.6ZM406.7,329.7C391.2,329.7 378.6,317.5 378.6,302.4C378.6,287.2 391.2,275 406.7,275C422.2,275 434.8,287.2 434.8,302.4C434.8,317.5 422.2,329.7 406.7,329.7Z</string> | |
<string name="pin_path_9">M414.2,238.1C382.4,238.1 357.9,261 357.9,293.8C357.9,326.3 402.5,408.3 403.9,408.3C405.3,408.3 471.4,330.5 471.4,293.8C471.4,261 445.9,238.1 414.2,238.1ZM414.2,323.8C398.7,323.8 386.1,310.7 386.1,294.6C386.1,278.5 398.7,265.4 414.2,265.4C429.7,265.4 442.3,278.5 442.3,294.6C442.3,310.7 429.7,323.8 414.2,323.8Z</string> | |
<string name="pin_path_13">M411.5,270.7C375.4,270.7 354.7,289.4 354.7,322.3C354.7,341 392.2,409.6 402.3,409.6C415.5,409.6 468.3,350.4 468.3,322.3C468.3,289.4 439.4,270.7 411.5,270.7ZM411.5,345.4C396,345.4 382.2,333.7 382.2,320C382.2,306.4 393.6,294 411.5,295.9C428.7,297.7 440.3,308 440.3,321.7C440.3,335.3 429.6,345.4 411.5,345.4Z</string> | |
<string name="pin_path_19">M452.8,211C418,208.7 398,240.4 398,253.2C398,298.3 401.3,343.7 384.1,360.4C465,355.9 508.3,297.4 508.3,269.2C508.3,230.3 477.4,212.7 452.8,211ZM452.5,297C431.6,297 423.8,275.7 423.8,262C423.8,248.4 439.3,236.3 452.8,236.3C466.2,236.3 481.6,248.4 481.6,262C481.6,275.7 473.4,297 452.5,297Z</string> | |
<!-- colors --> | |
<color name="pin">#F83E3E</color> | |
<color name="dot">#E2E2E2</color> | |
</resources> |
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