Demo for using and testing animation events
Change-Id: I7db791928dc590fd724f4c71565b42bc366e519c
This commit is contained in:
Chet Haase
@@ -839,6 +839,13 @@
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</intent-filter>
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</activity>
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<activity android:name=".animation.AnimatorEvents" android:label="Animation/Events">
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<intent-filter>
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<action android:name="android.intent.action.MAIN" />
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<category android:name="android.intent.category.SAMPLE_CODE" />
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</intent-filter>
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</activity>
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<activity android:name=".animation.BouncingBalls"
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android:label="Animation/Bouncing Balls">
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<intent-filter>
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122
samples/ApiDemos/res/layout/animator_events.xml
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122
samples/ApiDemos/res/layout/animator_events.xml
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@@ -0,0 +1,122 @@
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<?xml version="1.0" encoding="utf-8"?>
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<!-- Copyright (C) 2010 The Android Open Source Project
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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-->
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<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
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android:orientation="vertical"
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android:layout_width="fill_parent"
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android:layout_height="fill_parent"
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android:id="@+id/container"
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>
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<LinearLayout
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android:orientation="horizontal"
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android:layout_width="fill_parent"
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android:layout_height="wrap_content"
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>
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<Button
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android:layout_width="wrap_content"
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android:layout_height="wrap_content"
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android:text="Play"
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android:id="@+id/startButton"
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/>
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<Button
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android:layout_width="wrap_content"
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android:layout_height="wrap_content"
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android:text="Cancel"
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android:id="@+id/cancelButton"
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/>
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<Button
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android:layout_width="wrap_content"
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android:layout_height="wrap_content"
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android:text="End"
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android:id="@+id/endButton"
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/>
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<CheckBox
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android:layout_width="wrap_content"
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android:layout_height="wrap_content"
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android:text="End Immediately"
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android:id="@+id/endCB"
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/>
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</LinearLayout>
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<LinearLayout
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android:orientation="horizontal"
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android:layout_width="fill_parent"
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android:layout_height="wrap_content"
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>
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<TextView
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android:layout_width="wrap_content"
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android:layout_height="wrap_content"
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android:text="Sequencer Events: "
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/>
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<TextView
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android:layout_width="wrap_content"
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android:layout_height="wrap_content"
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android:text="Start "
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android:id="@+id/startText"
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/>
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<TextView
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android:layout_width="wrap_content"
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android:layout_height="wrap_content"
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android:text="Repeat "
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android:id="@+id/repeatText"
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/>
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<TextView
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android:layout_width="wrap_content"
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android:layout_height="wrap_content"
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android:text="Cancel "
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android:id="@+id/cancelText"
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/>
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<TextView
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android:layout_width="wrap_content"
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android:layout_height="wrap_content"
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android:text="End"
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android:id="@+id/endText"
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/>
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</LinearLayout>
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<LinearLayout
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android:orientation="horizontal"
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android:layout_width="fill_parent"
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android:layout_height="wrap_content"
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>
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<TextView
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android:layout_width="wrap_content"
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android:layout_height="wrap_content"
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android:text="Animator Events: "
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/>
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<TextView
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android:layout_width="wrap_content"
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android:layout_height="wrap_content"
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android:text="Start "
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android:id="@+id/startTextAnimator"
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/>
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<TextView
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android:layout_width="wrap_content"
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android:layout_height="wrap_content"
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android:text="Repeat "
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android:id="@+id/repeatTextAnimator"
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/>
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<TextView
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android:layout_width="wrap_content"
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android:layout_height="wrap_content"
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android:text="Cancel "
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android:id="@+id/cancelTextAnimator"
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/>
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<TextView
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android:layout_width="wrap_content"
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android:layout_height="wrap_content"
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android:text="End"
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android:id="@+id/endTextAnimator"
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/>
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</LinearLayout>
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</LinearLayout>
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@@ -0,0 +1,234 @@
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/*
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* Copyright (C) 2010 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.example.android.apis.animation;
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// Need the following import to get access to the app resources, since this
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// class is in a sub-package.
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import android.widget.CheckBox;
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import android.widget.TextView;
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import com.example.android.apis.R;
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import java.util.ArrayList;
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import android.animation.Animatable;
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import android.animation.Animator;
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import android.animation.PropertyAnimator;
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import android.animation.Sequencer;
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import android.app.Activity;
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import android.content.Context;
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import android.graphics.Canvas;
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import android.graphics.Paint;
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import android.graphics.RadialGradient;
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import android.graphics.Shader;
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import android.graphics.drawable.ShapeDrawable;
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import android.graphics.drawable.shapes.OvalShape;
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import android.os.Bundle;
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import android.view.View;
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import android.view.animation.AccelerateInterpolator;
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import android.widget.Button;
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import android.widget.LinearLayout;
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/**
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* This demo shows how the AnimatableListener events work.
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*/
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public class AnimatorEvents extends Activity {
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TextView startText, repeatText, cancelText, endText;
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TextView startTextAnimator, repeatTextAnimator, cancelTextAnimator, endTextAnimator;
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@Override
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public void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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setContentView(R.layout.animator_events);
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LinearLayout container = (LinearLayout) findViewById(R.id.container);
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final MyAnimationView animView = new MyAnimationView(this);
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container.addView(animView);
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startText = (TextView) findViewById(R.id.startText);
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startText.setAlpha(.5f);
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repeatText = (TextView) findViewById(R.id.repeatText);
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repeatText.setAlpha(.5f);
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cancelText = (TextView) findViewById(R.id.cancelText);
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cancelText.setAlpha(.5f);
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endText = (TextView) findViewById(R.id.endText);
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endText.setAlpha(.5f);
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startTextAnimator = (TextView) findViewById(R.id.startTextAnimator);
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startTextAnimator.setAlpha(.5f);
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repeatTextAnimator = (TextView) findViewById(R.id.repeatTextAnimator);
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repeatTextAnimator.setAlpha(.5f);
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cancelTextAnimator = (TextView) findViewById(R.id.cancelTextAnimator);
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cancelTextAnimator.setAlpha(.5f);
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endTextAnimator = (TextView) findViewById(R.id.endTextAnimator);
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endTextAnimator.setAlpha(.5f);
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final CheckBox endCB = (CheckBox) findViewById(R.id.endCB);
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Button starter = (Button) findViewById(R.id.startButton);
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starter.setOnClickListener(new View.OnClickListener() {
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@Override
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public void onClick(View v) {
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animView.startAnimation(endCB.isChecked());
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}
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});
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Button canceler = (Button) findViewById(R.id.cancelButton);
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canceler.setOnClickListener(new View.OnClickListener() {
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@Override
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public void onClick(View v) {
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animView.cancelAnimation();
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}
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});
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Button ender = (Button) findViewById(R.id.endButton);
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ender.setOnClickListener(new View.OnClickListener() {
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@Override
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public void onClick(View v) {
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animView.endAnimation();
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}
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});
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}
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public class MyAnimationView extends View implements Animatable.AnimatableListener,
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Animator.AnimatorUpdateListener {
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public final ArrayList<ShapeHolder> balls = new ArrayList<ShapeHolder>();
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Animatable animation;
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ShapeHolder ball = null;
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boolean endImmediately = false;
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public MyAnimationView(Context context) {
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super(context);
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ball = createBall(25, 25);
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}
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private void createAnimation() {
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if (animation == null) {
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PropertyAnimator yAnim = new PropertyAnimator(1500, ball, "y",
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ball.getY(), getHeight() - 50f);
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yAnim.setRepeatCount(1);
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yAnim.setRepeatMode(Animator.REVERSE);
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yAnim.setInterpolator(new AccelerateInterpolator(2f));
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yAnim.addUpdateListener(this);
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yAnim.addListener(this);
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PropertyAnimator xAnim = new PropertyAnimator(1500, ball, "x",
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ball.getX(), ball.getX() + 300);
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xAnim.setRepeatCount(1);
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xAnim.setRepeatMode(Animator.REVERSE);
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xAnim.setInterpolator(new AccelerateInterpolator(2f));
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animation = new Sequencer();
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((Sequencer) animation).playTogether(yAnim, xAnim);
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animation.addListener(this);
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}
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}
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public void startAnimation(boolean endImmediately) {
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this.endImmediately = endImmediately;
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startText.setAlpha(.5f);
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repeatText.setAlpha(.5f);
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cancelText.setAlpha(.5f);
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endText.setAlpha(.5f);
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startTextAnimator.setAlpha(.5f);
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repeatTextAnimator.setAlpha(.5f);
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cancelTextAnimator.setAlpha(.5f);
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endTextAnimator.setAlpha(.5f);
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createAnimation();
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animation.start();
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}
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public void cancelAnimation() {
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createAnimation();
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animation.cancel();
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}
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public void endAnimation() {
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createAnimation();
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animation.end();
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}
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private ShapeHolder createBall(float x, float y) {
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OvalShape circle = new OvalShape();
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circle.resize(50f, 50f);
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ShapeDrawable drawable = new ShapeDrawable(circle);
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ShapeHolder shapeHolder = new ShapeHolder(drawable);
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shapeHolder.setX(x - 25f);
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shapeHolder.setY(y - 25f);
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int red = (int)(Math.random() * 255);
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int green = (int)(Math.random() * 255);
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int blue = (int)(Math.random() * 255);
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int color = 0xff000000 | red << 16 | green << 8 | blue;
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Paint paint = drawable.getPaint(); //new Paint(Paint.ANTI_ALIAS_FLAG);
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int darkColor = 0xff000000 | red/4 << 16 | green/4 << 8 | blue/4;
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RadialGradient gradient = new RadialGradient(37.5f, 12.5f,
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50f, color, darkColor, Shader.TileMode.CLAMP);
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paint.setShader(gradient);
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shapeHolder.setPaint(paint);
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return shapeHolder;
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}
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@Override
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protected void onDraw(Canvas canvas) {
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canvas.save();
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canvas.translate(ball.getX(), ball.getY());
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ball.getShape().draw(canvas);
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canvas.restore();
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}
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public void onAnimationUpdate(Animator animation) {
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invalidate();
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}
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public void onAnimationStart(Animatable animation) {
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if (animation instanceof Sequencer) {
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startText.setAlpha(1f);
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} else {
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startTextAnimator.setAlpha(1f);
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}
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if (endImmediately) {
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animation.end();
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}
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}
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public void onAnimationEnd(Animatable animation) {
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if (animation instanceof Sequencer) {
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endText.setAlpha(1f);
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} else {
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endTextAnimator.setAlpha(1f);
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}
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}
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public void onAnimationCancel(Animatable animation) {
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if (animation instanceof Sequencer) {
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cancelText.setAlpha(1f);
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} else {
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cancelTextAnimator.setAlpha(1f);
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}
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}
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public void onAnimationRepeat(Animatable animation) {
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if (animation instanceof Sequencer) {
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repeatText.setAlpha(1f);
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} else {
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repeatTextAnimator.setAlpha(1f);
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}
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}
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}
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}
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