android4动画应用二
之前本想把ANDROID4的动画应用都写下来的，后来觉得自己想讲一套视频，以共编程爱好者更好的学习，但是由于时间问题一直没能如愿，前段时间录了些视频，自己感觉录制下来的效果并不理想，个人感觉自己的表达能力急需有待提高，在录制好后，自己听了遍，效果真是，那个差啊，不过没关系，我有信心把它录制好，并觉得录制一套免费的ANDROOID4完全开发视频，从底层分析到APP上线，说实话，之前一直给公司做，自己闲时抽了些时间给自己写了几个，比如说针对很多人面试难的面试宝典，还有人生宝典，个性展示等APP，处于自己设计的问题，总感觉不如人意，所以一直没上MARKET市场，哎，可能我真的还辨别不了商机与偏好的区别，好了，不多说了，这段时间自己也在针对设计这块进行严谨的充电中，不知道等我把这写都搞明白了，IT行业又变成什么样了，别的就不说了，先把之前的动画二与三一起贴出来吧，只贴核心代码，我会把演示的视频上传的YOUKU里：http://u.youku.com/user_show/uid_jiangshide1，还有之前的动画一的演示视频地址：http://v.youku.com/v_show/id_XMzQ1MDg4MTY0.html，各位偏好者可以去观看下，在后面我会陆续推出一些视频，比如针对初学者与中级之类的视频方便其学习，不管我做得好与不好，希望都能得到各位网友的支持，毕竟我所作的都是免费的，可能在后期我会推出自己门户网站，已经在设计当中，这可能需要些时间，希望到时候能得到大家的支持，好了，直接贴源码吧：
这是CLONING的核心代码：
package com.jsd.android4.cloning;
import java.util.ArrayList;
import android.animation.AnimatorSet;
import android.animation.ObjectAnimator;
import android.animation.ValueAnimator;
import android.animation.ValueAnimator.AnimatorUpdateListener;
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.view.animation.DecelerateInterpolator;
import android.widget.Button;
import android.widget.LinearLayout;
import com.jsd.android4.R;
import com.jsd.android4.bouncing.ShapeHolder;
/**
*
* @author jankey
*
*/
public class AnimCloningActivity extends Activity{
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.anim_cloning);
LinearLayout container = (LinearLayout) findViewById(R.id.container);
final MyAnimationView animView = new MyAnimationView(this);
container.addView(animView);
Button starter = (Button) findViewById(R.id.startButton);
starter.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
animView.startAnimation();
}
});
}
public class MyAnimationView extends View implements AnimatorUpdateListener{
public final ArrayList<ShapeHolder> balls = new ArrayList<ShapeHolder>();
AnimatorSet animation = null;
private float mDensity;
public MyAnimationView(Context context) {
super(context);
mDensity = getContext().getResources().getDisplayMetrics().density;
ShapeHolder ball0 = addBall(50f,25f);
ShapeHolder ball1 = addBall(150f,25f);
ShapeHolder ball2 = addBall(250f,25f);
ShapeHolder ball3 = addBall(350f,25f);
ShapeHolder ball4 = addBall(450f,25f);
}
private void createAnimation(){
if(animation == null){
ObjectAnimator animl = ObjectAnimator.ofFloat(balls.get(0),"y",0f,getHeight() - balls.get(0).getHeight()).setDuration(500);
ObjectAnimator anim2 = animl.clone();
anim2.setTarget(balls.get(1));
animl.addUpdateListener(this);
ShapeHolder ball2 = balls.get(2);
ObjectAnimator animDown = ObjectAnimator.ofFloat(ball2, "y",0f,getHeight() - ball2.getHeight()).setDuration(500);
animDown.setInterpolator(new AccelerateInterpolator());
ObjectAnimator animUp = ObjectAnimator.ofFloat(ball2, "y",0f,getHeight()-ball2.getHeight(),0f).setDuration(500);
animUp.setInterpolator(new DecelerateInterpolator());
AnimatorSet s1 = new AnimatorSet();
s1.playSequentially(animDown,animUp);
animDown.addUpdateListener(this);
animUp.addUpdateListener(this);
AnimatorSet s2 = (AnimatorSet)s1.clone();
s2.setTarget(balls.get(3));
animation = new AnimatorSet();
animation.playTogether(animl,anim2,s1);
animation.playSequentially(s1,s2);
}
}
private ShapeHolder addBall(float x,float y){
OvalShape circle = new OvalShape();
circle.resize(50f*mDensity,50f*mDensity);
ShapeDrawable drawable = new ShapeDrawable(circle);
ShapeHolder shapeHolder = new ShapeHolder(drawable);
shapeHolder.setX(x - 25f);
shapeHolder.setY(y - 25f);
int red = (int)(100 + Math.random() * 155);
int green = (int)(10 + Math.random() * 155);
int blue = (int)(100 + Math.random() * 155);
int color = 0xff000000 | red << 16 | green << 8 | blue;
Paint paint = drawable.getPaint();
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);
balls.add(shapeHolder);
return shapeHolder;
}
@Override
protected void onDraw(Canvas canvas) {
for(int i=0;i<balls.size();++i){
ShapeHolder shapeHolder = balls.get(i);
canvas.save();
canvas.translate(shapeHolder.getX(), shapeHolder.getY());
shapeHolder.getShape().draw(canvas);
canvas.restore();
}
}
public void startAnimation(){
createAnimation();
animation.start();
}
@Override
public void onAnimationUpdate(ValueAnimator animation) {
invalidate();
}
}
}
这是EVALUTOR的核心代码:
package com.jsd.android4.evaluator;
import java.util.ArrayList;
import android.animation.ObjectAnimator;
import android.animation.TypeEvaluator;
import android.animation.ValueAnimator;
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.widget.Button;
import android.widget.LinearLayout;
import com.jsd.android4.R;
import com.jsd.android4.bouncing.ShapeHolder;
/**
*
* @author jankey
*
*/
public class CustomEvaluatorActivity extends Activity{
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.evaluator);
initialized();
}
private void initialized(){
LinearLayout container = (LinearLayout) findViewById(R.id.container);
final MyAnimationView animView = new MyAnimationView(this);
container.addView(animView);
Button starter = (Button) findViewById(R.id.startTo);
starter.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
animView.startAnimation();
}
});
}
public class XYHolder {
private float mX;
private float mY;
public XYHolder(float x, float y) {
mX = x;
mY = y;
}
public float getX() {
return mX;
}
public void setX(float x) {
mX = x;
}
public float getY() {
return mY;
}
public void setY(float y) {
mY = y;
}
}
public class XYEvaluator implements TypeEvaluator {
public Object evaluate(float fraction, Object startValue, Object endValue) {
XYHolder startXY = (XYHolder) startValue;
XYHolder endXY = (XYHolder) endValue;
return new XYHolder(startXY.getX() + fraction * (endXY.getX() - startXY.getX()),
startXY.getY() + fraction * (endXY.getY() - startXY.getY()));
}
}
public class BallXYHolder {
private ShapeHolder mBall;
public BallXYHolder(ShapeHolder ball) {
mBall = ball;
}
public void setXY(XYHolder xyHolder) {
mBall.setX(xyHolder.getX());
mBall.setY(xyHolder.getY());
}
public XYHolder getXY() {
return new XYHolder(mBall.getX(), mBall.getY());
}
}
public class MyAnimationView extends View implements ValueAnimator.AnimatorUpdateListener {
public final ArrayList<ShapeHolder> balls = new ArrayList<ShapeHolder>();
ValueAnimator bounceAnim = null;
ShapeHolder ball = null;
BallXYHolder ballHolder = null;
public MyAnimationView(Context context) {
super(context);
ball = createBall(25, 25);
ballHolder = new BallXYHolder(ball);
}
private void createAnimation() {
if (bounceAnim == null) {
XYHolder startXY = new XYHolder(0f, 0f);
XYHolder endXY = new XYHolder(300f, 800f);
bounceAnim = ObjectAnimator.ofObject(ballHolder, "xY",
new XYEvaluator(), endXY);
bounceAnim.setDuration(2000);
bounceAnim.addUpdateListener(this);
}
}
public void startAnimation() {
createAnimation();
bounceAnim.start();
}
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(ValueAnimator animation) {
invalidate();
}
}
}
RES文件我就不贴了，很简单，之前的差不多，在下面我就把运行的图贴上来吧：
好了以上就是其截图，如果自己有兴趣的话，可以自己对其源码进行修改与在整合，以便做出更多优美的效果来.....
