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Demo for using and testing animation events

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Change-Id: I7db791928dc590fd724f4c71565b42bc366e519c
This commit is contained in:
Chet Haase
2010-08-25 16:30:28 -07:00
parent 989a1180de
commit 2ab1da8886
3 changed files with 363 additions and 0 deletions
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7
samples/ApiDemos/AndroidManifest.xml
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@@ -839,6 +839,13 @@
</intent-filter> </intent-filter>
</activity> </activity>
<activity android:name=".animation.AnimatorEvents" android:label="Animation/Events">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.SAMPLE_CODE" />
</intent-filter>
</activity>
<activity android:name=".animation.BouncingBalls" <activity android:name=".animation.BouncingBalls"
android:label="Animation/Bouncing Balls"> android:label="Animation/Bouncing Balls">
<intent-filter> <intent-filter>

122
samples/ApiDemos/res/layout/animator_events.xml Normal file
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@@ -0,0 +1,122 @@
<?xml version="1.0" encoding="utf-8"?>
<!-- Copyright (C) 2010 The Android Open Source Project
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.
-->
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:id="@+id/container"
>
<LinearLayout
android:orientation="horizontal"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Play"
android:id="@+id/startButton"
/>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Cancel"
android:id="@+id/cancelButton"
/>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="End"
android:id="@+id/endButton"
/>
<CheckBox
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="End Immediately"
android:id="@+id/endCB"
/>
</LinearLayout>
<LinearLayout
android:orientation="horizontal"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Sequencer Events: "
/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Start "
android:id="@+id/startText"
/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Repeat "
android:id="@+id/repeatText"
/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Cancel "
android:id="@+id/cancelText"
/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="End"
android:id="@+id/endText"
/>
</LinearLayout>
<LinearLayout
android:orientation="horizontal"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Animator Events: "
/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Start "
android:id="@+id/startTextAnimator"
/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Repeat "
android:id="@+id/repeatTextAnimator"
/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Cancel "
android:id="@+id/cancelTextAnimator"
/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="End"
android:id="@+id/endTextAnimator"
/>
</LinearLayout>
</LinearLayout>

234
samples/ApiDemos/src/com/example/android/apis/animation/AnimatorEvents.java Normal file
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@@ -0,0 +1,234 @@
/*
* Copyright (C) 2010 The Android Open Source Project
*
* 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.android.apis.animation;
// Need the following import to get access to the app resources, since this
// class is in a sub-package.
import android.widget.CheckBox;
import android.widget.TextView;
import com.example.android.apis.R;
import java.util.ArrayList;
import android.animation.Animatable;
import android.animation.Animator;
import android.animation.PropertyAnimator;
import android.animation.Sequencer;
import android.app.Activity;
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.graphics.RadialGradient;
import android.graphics.Shader;
import android.graphics.drawable.ShapeDrawable;
import android.graphics.drawable.shapes.OvalShape;
import android.os.Bundle;
import android.view.View;
import android.view.animation.AccelerateInterpolator;
import android.widget.Button;
import android.widget.LinearLayout;
/**
* This demo shows how the AnimatableListener events work.
*/
public class AnimatorEvents extends Activity {
TextView startText, repeatText, cancelText, endText;
TextView startTextAnimator, repeatTextAnimator, cancelTextAnimator, endTextAnimator;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.animator_events);
LinearLayout container = (LinearLayout) findViewById(R.id.container);
final MyAnimationView animView = new MyAnimationView(this);
container.addView(animView);
startText = (TextView) findViewById(R.id.startText);
startText.setAlpha(.5f);
repeatText = (TextView) findViewById(R.id.repeatText);
repeatText.setAlpha(.5f);
cancelText = (TextView) findViewById(R.id.cancelText);
cancelText.setAlpha(.5f);
endText = (TextView) findViewById(R.id.endText);
endText.setAlpha(.5f);
startTextAnimator = (TextView) findViewById(R.id.startTextAnimator);
startTextAnimator.setAlpha(.5f);
repeatTextAnimator = (TextView) findViewById(R.id.repeatTextAnimator);
repeatTextAnimator.setAlpha(.5f);
cancelTextAnimator = (TextView) findViewById(R.id.cancelTextAnimator);
cancelTextAnimator.setAlpha(.5f);
endTextAnimator = (TextView) findViewById(R.id.endTextAnimator);
endTextAnimator.setAlpha(.5f);
final CheckBox endCB = (CheckBox) findViewById(R.id.endCB);
Button starter = (Button) findViewById(R.id.startButton);
starter.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
animView.startAnimation(endCB.isChecked());
}
});
Button canceler = (Button) findViewById(R.id.cancelButton);
canceler.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
animView.cancelAnimation();
}
});
Button ender = (Button) findViewById(R.id.endButton);
ender.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
animView.endAnimation();
}
});
}
public class MyAnimationView extends View implements Animatable.AnimatableListener,
Animator.AnimatorUpdateListener {
public final ArrayList<ShapeHolder> balls = new ArrayList<ShapeHolder>();
Animatable animation;
ShapeHolder ball = null;
boolean endImmediately = false;
public MyAnimationView(Context context) {
super(context);
ball = createBall(25, 25);
}
private void createAnimation() {
if (animation == null) {
PropertyAnimator yAnim = new PropertyAnimator(1500, ball, "y",
ball.getY(), getHeight() - 50f);
yAnim.setRepeatCount(1);
yAnim.setRepeatMode(Animator.REVERSE);
yAnim.setInterpolator(new AccelerateInterpolator(2f));
yAnim.addUpdateListener(this);
yAnim.addListener(this);
PropertyAnimator xAnim = new PropertyAnimator(1500, ball, "x",
ball.getX(), ball.getX() + 300);
xAnim.setRepeatCount(1);
xAnim.setRepeatMode(Animator.REVERSE);
xAnim.setInterpolator(new AccelerateInterpolator(2f));
animation = new Sequencer();
((Sequencer) animation).playTogether(yAnim, xAnim);
animation.addListener(this);
}
}
public void startAnimation(boolean endImmediately) {
this.endImmediately = endImmediately;
startText.setAlpha(.5f);
repeatText.setAlpha(.5f);
cancelText.setAlpha(.5f);
endText.setAlpha(.5f);
startTextAnimator.setAlpha(.5f);
repeatTextAnimator.setAlpha(.5f);
cancelTextAnimator.setAlpha(.5f);
endTextAnimator.setAlpha(.5f);
createAnimation();
animation.start();
}
public void cancelAnimation() {
createAnimation();
animation.cancel();
}
public void endAnimation() {
createAnimation();
animation.end();
}
private ShapeHolder createBall(float x, float y) {
OvalShape circle = new OvalShape();
circle.resize(50f, 50f);
ShapeDrawable drawable = new ShapeDrawable(circle);
ShapeHolder shapeHolder = new ShapeHolder(drawable);
shapeHolder.setX(x - 25f);
shapeHolder.setY(y - 25f);
int red = (int)(Math.random() * 255);
int green = (int)(Math.random() * 255);
int blue = (int)(Math.random() * 255);
int color = 0xff000000 | red << 16 | green << 8 | blue;
Paint paint = drawable.getPaint(); //new Paint(Paint.ANTI_ALIAS_FLAG);
int darkColor = 0xff000000 | red/4 << 16 | green/4 << 8 | blue/4;
RadialGradient gradient = new RadialGradient(37.5f, 12.5f,
50f, color, darkColor, Shader.TileMode.CLAMP);
paint.setShader(gradient);
shapeHolder.setPaint(paint);
return shapeHolder;
}
@Override
protected void onDraw(Canvas canvas) {
canvas.save();
canvas.translate(ball.getX(), ball.getY());
ball.getShape().draw(canvas);
canvas.restore();
}
public void onAnimationUpdate(Animator animation) {
invalidate();
}
public void onAnimationStart(Animatable animation) {
if (animation instanceof Sequencer) {
startText.setAlpha(1f);
} else {
startTextAnimator.setAlpha(1f);
}
if (endImmediately) {
animation.end();
}
}
public void onAnimationEnd(Animatable animation) {
if (animation instanceof Sequencer) {
endText.setAlpha(1f);
} else {
endTextAnimator.setAlpha(1f);
}
}
public void onAnimationCancel(Animatable animation) {
if (animation instanceof Sequencer) {
cancelText.setAlpha(1f);
} else {
cancelTextAnimator.setAlpha(1f);
}
}
public void onAnimationRepeat(Animatable animation) {
if (animation instanceof Sequencer) {
repeatText.setAlpha(1f);
} else {
repeatTextAnimator.setAlpha(1f);
}
}
}
}