java放大动画代码,java代码怎么放大

android 不用XML，怎样在代码里用animation同时实现图片的缩放和移动。

1.在Java Code定义动画

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AlphaAnimation

渐变透明度动画效果

ScaleAnimation

渐变尺寸伸缩动画效果

TranslateAnimation

画面转换位置移动动画效果

RotateAnimation

画面转移旋转动画效果

//定义变量

private Animation myAnimation_Alpha;

private Animation myAnimation_Scale;

private Animation myAnimation_Translate;

private Animation myAnimation_Rotate;

myAnimation_Alpha=new AlphaAnimation(0.1f, 1.0f);

//第一个参数fromAlpha为动画开始时候透明度

//第二个参数toAlpha为动画结束时候透明度

myAnimation_Scale =new ScaleAnimation(0.0f, 1.4f, 0.0f, 1.4f, Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.5f);

//第一个参数fromX为动画起始时 X坐标上的伸缩尺寸

//第二个参数toX为动画结束时 X坐标上的伸缩尺寸

//第三个参数fromY为动画起始时Y坐标上的伸缩尺寸

//第四个参数toY为动画结束时Y坐标上的伸缩尺寸

//第五个参数pivotXType为动画在X轴相对于物件位置类型

//第六个参数pivotXValue为动画相对于物件的X坐标的开始位置

//第七个参数pivotXType为动画在Y轴相对于物件位置类型

//第八个参数pivotYValue为动画相对于物件的Y坐标的开始位置

myAnimation_Translate=new TranslateAnimation(30.0f, -80.0f, 30.0f, 300.0f);

//第一个参数fromXDelta为动画起始时 X坐标上的移动位置

//第二个参数toXDelta为动画结束时 X坐标上的移动位置

//第三个参数fromYDelta为动画起始时Y坐标上的移动位置

//第四个参数toYDelta为动画结束时Y坐标上的移动位置

myAnimation_Rotate=new RotateAnimation(0.0f,350.0f,Animation.RELATIVE_TO_SELF,0.5f, Animation.RELATIV E_TO_SELF, 0.5f);

//第一个参数fromDegrees为动画起始时的旋转角度

//第二个参数toDegrees为动画旋转到的角度

//第三个参数pivotXType为动画在X轴相对于物件位置类型

//第四个参数pivotXValue为动画相对于物件的X坐标的开始位

//第五个参数pivotXType为动画在Y轴相对于物件位置类型

//第六个参数pivotYValue为动画相对于物件的Y坐标的开始位置

2.3自定义动画

除了以上4类动画外，在代码中继承android.view.animation.Animation类来实现自定义效果。通过重写Animation的applyTransformation(float interpolatedTime, Transformation t)函数来实现自定义动画效果。

在绘制动画的过程中会反复的调用applyTransformation函数，每次调用参数interpolatedTime值都会变化，该参数从0渐变为1，当该参数为1时表明动画结束。通过参数Transformation 来获取变换的矩阵（matrix），通过改变矩阵就可以实现各种复杂的效果。

自定义图片旋转效果动画代码。

class ViewAnimation extends Animation

{

int mCenterX;

int mCenterY;

Camera camera = new Camera();

public ViewAnimation()

{

}

@Override

public void initialize(int width, int height, int parentWidth,

int parentHeight)

{

super.initialize(width, height, parentWidth, parentHeight);

mCenterX = width/2;

mCenterY = height/2;

setDuration(2500);

setFillAfter(true);

// setRepeatCount(100);

setInterpolator(new LinearInterpolator());

}

@Override

protected void applyTransformation(float interpolatedTime,

Transformation t)

{

final Matrix matrix = t.getMatrix();

camera.save();

camera.translate(0.0f, 0.0f, (1300 - 1300.0f * interpolatedTime));

camera.rotateY(360 * interpolatedTime);

camera.getMatrix(matrix);

matrix.preTranslate(-mCenterX, -mCenterY);

matrix.postTranslate(mCenterX, mCenterY);

camera.restore();

}

camera.translate(0.0f, 0.0f, (1300 - 1300.0f * interpolatedTime))在第一次调用的时候interpolatedTime值为0，相当于把ImageView在Z轴后移1300像素，然后逐步的往前移动到0，同时camera.rotateY(360 * interpolatedTime)函数又把ImageView沿Y轴翻转360度

2.4动画实现

在代码的一个activity中，将需要动画的控件与已定义的动画关联，开启动画

private Animation mAnimationXXX ＝ null；//生明动画

ImageView mAnimImageX ＝ null；//生明 ImageView控件（或者其它需要有动画的控件）

mAnimImageX = (ImageView) this.findViewById(R.id.anim_imageX);//取得图片资源

mAnimImageX.startAnimation(mAnimationXXX);//基于xml文件，开启动画

mAnimImageX.startAnimation(new ViewAnimation());//基于自定义控件，开启动画。

2.5图片旋转Demo

public class AnimationDemo extends Activity {

/** Called when the activity is first created. */

ImageView mAnimImage;

private Animation mAnimationAlpha = null;

private Animation mAnimationScale = null;

private Animation mAnimationTranslate = null;

private Animation mAnimationRotate = null;

@Override

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.main);

mAnimImage = (ImageView) this.findViewById(R.id.anim_image1);

mAnimationAlpha = AnimationUtils.loadAnimation(this,R.anim.alpha_animation);

mAnimationScale = AnimationUtils.loadAnimation(this,R.anim.scale_animation);

mAnimationTranslate = AnimationUtils.loadAnimation(this,R.anim.translate_animation);

mAnimationRotate = AnimationUtils.loadAnimation(this,R.anim.rotate_animation);

}

public boolean onKeyUp(int keyCode, KeyEvent event)

{

switch ( keyCode )

{

case KeyEvent.KEYCODE_1:

mAnimImage.startAnimation(mAnimationAlpha);

break;

case KeyEvent.KEYCODE_2:

mAnimImage.startAnimation(mAnimationScale);

break;

case KeyEvent.KEYCODE_3:

mAnimImage.startAnimation(mAnimationTranslate);

break;

case KeyEvent.KEYCODE_4:

mAnimImage.startAnimation( mAnimationRotate);

break;

case KeyEvent.KEYCODE_5:

mAnimImage.startAnimation(new ViewAnimation());

break;

}

return true;

}

public boolean onKeyDown(int keyCode, KeyEvent event)

{

if ( keyCode == KeyEvent.KEYCODE_BACK)

{

this.finish();

return true;

}

return super.onKeyDown(keyCode, event);

}

3 Frame动画

Frame 动画是顺序播放事先做好的图片。可以在XML Resource定义，也可以使AnimationDrawable中的API定义。

3.1Frame动画实现

定义XML文件

?xml version="1.0" encoding="utf-8"?

animation-list xmlns:android=""

android:oneshot="false"

item android:drawable="@drawable/a1" android:duration="500" /

item android:drawable="@drawable/a2" android:duration="500" /

item android:drawable="@drawable/a3" android:duration="500" /

item android:drawable="@drawable/a4" android:duration="500" /

item android:drawable="@drawable/a5" android:duration="500" /

item android:drawable="@drawable/a6" android:duration="500" /

item android:drawable="@drawable/a7" android:duration="500" /

item android:drawable="@drawable/a8" android:duration="500" /

item android:drawable="@drawable/a9" android:duration="500" /

item android:drawable="@drawable/a10" android:duration="500" /

item android:drawable="@drawable/a11" android:duration="500" /

item android:drawable="@drawable/a12" android:duration="500" /

item android:drawable="@drawable/a13" android:duration="500" /

item android:drawable="@drawable/a14" android:duration="500" /

item android:drawable="@drawable/a15" android:duration="500" /

/animation-list

定义动画类

public class GameView extends View

{

private AnimationDrawable frameAnimation = null;

Context mContext = null;

public GameView(Context context)

{

super(context);

mContext = context;

ImageView img = new ImageView(mContext);

img.setBackgroundResource(R.anim.frameanimation);

frameAnimation = (AnimationDrawable) img.getBackground();

frameAnimation.setOneShot( false );

this.setBackgroundDrawable(frameAnimation);

}

public void onDraw(Canvas canvas)

{

super.onDraw(canvas);

}

public boolean onKeyUp(int keyCode, KeyEvent event)

{

switch ( keyCode )

{

case KeyEvent.KEYCODE_DPAD_UP:

frameAnimation.start();

break;

}

return true;

}

开启动画

public class Activity01 extends Activity

{

private GameView mGameView;

/** Called when the activity is first created. */

@Override

public void onCreate(Bundle savedInstanceState)

{

super.onCreate(savedInstanceState);

mGameView = new GameView(this);

setContentView(mGameView);

}

public boolean onKeyUp(int keyCode, KeyEvent event)

{

if ( mGameView == null )

{

return false;

}

mGameView.onKeyUp(keyCode,event);

return true;

}

public boolean onKeyDown(int keyCode, KeyEvent event)

{

if ( mGameView == null )

{

return false;

}

if ( keyCode == KeyEvent.KEYCODE_BACK)

{

this.finish();

return true;

}

return super.onKeyDown(keyCode, event);

}

如何用Java实现图形的放大和缩小

java实现图形的放大和缩小，其实就是在画图时，改变图片的长和宽。以下代码参考一下：

import java.awt.Graphics;

import java.awt.MouseInfo;

import java.awt.Point;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.awt.event.MouseEvent;

import java.awt.event.MouseListener;

import java.io.File;

import javax.swing.ImageIcon;

import javax.swing.JButton;

import javax.swing.JFileChooser;

import javax.swing.JFrame;

import javax.swing.JPanel;

import javax.swing.filechooser.FileNameExtensionFilter;

public class App extends JFrame implements MouseListener, ActionListener {

int x = 0;

int y = 0;

File[] selectedFiles = null;

int fileIndex = 0;

int width = 200;

int height = 200;

public App() {

setDefaultCloseOperation(EXIT_ON_CLOSE);

setLocationRelativeTo(null);

setSize(400, 300);

setResizable(false);

getContentPane().setLayout(null);

JPanel panel = new ImagePanel();

panel.setBounds(12, 40, 370, 218);

getContentPane().add(panel);

addMouseListener(this);

JButton btnBrowse = new JButton("Browse");

btnBrowse.addActionListener(this);

btnBrowse.setBounds(12, 9, 91, 21);

getContentPane().add(btnBrowse);

setVisible(true);

}

public static void main(String[] args) {

new App();

}

public void actionPerformed(ActionEvent e) {

JFileChooser chooser = new JFileChooser();

chooser.setMultiSelectionEnabled(true);

FileNameExtensionFilter filter = new FileNameExtensionFilter(

"JPG GIF Images", "jpg", "gif");

// 设置文件类型

chooser.setFileFilter(filter);

// 打开选择器面板

int returnVal = chooser.showOpenDialog(this);

if (returnVal == JFileChooser.APPROVE_OPTION) {

selectedFiles = chooser.getSelectedFiles();

repaint();

}

public void mouseClicked(MouseEvent e) {

}

public void mouseEntered(MouseEvent e) {

}

public void mouseExited(MouseEvent e) {

}

public void mousePressed(MouseEvent e) {

Point point = MouseInfo.getPointerInfo().getLocation();

x = point.x;

y = point.y;

}

public void mouseReleased(MouseEvent e) {

Point point = MouseInfo.getPointerInfo().getLocation();

int thisX = point.x;

int thisY = point.y;

System.out.println("thisX=" + thisX + " " + "thisY=" + thisY);

if ((y - thisY 20 y - thisY 0)

|| (y - thisY 0 y - thisY -20)) {

// Y 在20范围内移动认为是水平移动

if (x thisX) {

// right

if (selectedFiles != null

fileIndex selectedFiles.length - 1) {

fileIndex++;

}

} else {

// left

if (selectedFiles != null fileIndex 0) {

fileIndex--;

}

} else {

if (x thisX) {

// 右下

width += 20;

height += 20;

} else {

// 左上

width -= 20;

height -= 20;

}

repaint();

}

class ImagePanel extends JPanel {

public void paint(Graphics g) {

super.paint(g);

if (selectedFiles != null) {

ImageIcon icon = new ImageIcon(selectedFiles[fileIndex]

.getPath());

g.drawImage(icon.getImage(), 0, 0, width, height, this);

}

怎么用java代码放大或缩小图片不失真。

放大图像不会导致失真，而缩小图像将不可避免的失真。

Java中也同样是这样。

但java提供了4个缩放的微调选项。

image.SCALE_SMOOTH

//平滑优先

image.SCALE_FAST//速度优先

image.SCALE_AREA_AVERAGING

//区域均值

image.SCALE_REPLICATE

//像素复制型缩放

image.SCALE_DEFAULT

//默认缩放模式

调用方法

Image

new_img=old_img.getScaledInstance(1024,

768,

Image.SCALE_SMOOTH);

得到一张缩放后的新图。

求java做动画代码

import java.awt.Canvas;

import java.awt.Color;

import java.awt.Dimension;

import java.awt.EventQueue;

import java.awt.Frame;

import java.awt.Graphics;

import java.awt.Graphics2D;

import java.awt.Image;

import java.awt.RenderingHints;

import java.awt.event.KeyEvent;

import java.awt.event.KeyListener;

import java.awt.event.WindowAdapter;

import java.awt.event.WindowEvent;

import java.awt.image.BufferedImage;

import java.io.File;

import java.io.IOException;

import javax.imageio.ImageIO;

public class TestImage extends Frame

{

private static final long serialVersionUID = 1L;

private static boolean PRESSED = false;

private static int pointX = 0;

private static int pointy = 200;

private static int RIGHT_GO = 0;

private static int LEFT_GO = 0;

private static int DIR = 0;

private static int ANGLE = 0;

private static int W = 50;

private static int H = 60;

private _Canvas canvas = null;

public TestImage ()

{

add (canvas = new _Canvas ());

setIgnoreRepaint (true);

requestFocus ();

}

public class _Canvas extends Canvas implements Runnable

{

private static final long serialVersionUID = 1L;

private BufferedImage bi = null;

private Image bufferedImage = null;

private Thread thread = null;

private long sleepTime = 10;

public _Canvas ()

{

try

{

bi = ImageIO.read (new File ("go.png"));

}

catch (IOException e)

{}

setBackground (Color.BLACK);

requestFocus ();

addKeyListener (new KeyListener ()

{

@Override

public void keyTyped ( KeyEvent e )

{}

@Override

public void keyReleased ( KeyEvent e )

{

RIGHT_GO = 0;

PRESSED = false;

}

@Override

public void keyPressed ( KeyEvent e )

{

// 38 40 37 39上下左右

DIR = e.getKeyCode ();

PRESSED = true;

}

});

}

@Override

public void paint ( Graphics g )

{

Graphics2D g2d = (Graphics2D) g;

g2d.setRenderingHint (RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);

g2d.drawImage (rotateImage (bi.getSubimage (RIGHT_GO, LEFT_GO, W, H), ANGLE, true), pointX, pointy, W, H,

this);

g2d.dispose ();

}

@Override

public void update ( Graphics g )

{

if (null == bufferedImage)

{

bufferedImage = createImage (getWidth (), getHeight ());

}

Graphics bufferedG = bufferedImage.getGraphics ();

bufferedG.clearRect (0, 0, getWidth (), getHeight ());

paint (bufferedG);

bufferedG.dispose ();

g.drawImage (bufferedImage, 0, 0, this);

g.dispose ();

}

public void start ()

{

thread = new Thread (this);

thread.setName ("TestImage");

thread.setPriority (Thread.MIN_PRIORITY);

thread.start ();

}

public synchronized void stop ()

{

thread = null;

notify ();

}

@Override

public void run ()

{

Thread me = Thread.currentThread ();

while (thread == me !isShowing () || getSize ().width == 0)

{

try

{

Thread.sleep (555);

}

catch (InterruptedException e)

{

return;

}

while (thread == me isShowing ())

{

if (PRESSED)

{

try

{

if (DIR == 39)

{

RIGHT_GO = RIGHT_GO + 50;

LEFT_GO = 0;

pointX = pointX + 1;

if (pointX 420)

{

ANGLE = 90;

pointX--;

pointy--;

W = 60;

H = 50;

}

if (RIGHT_GO 50)

{

RIGHT_GO = 0;

}

else if (DIR == 37)

{

pointX = pointX - 1;

RIGHT_GO = RIGHT_GO + 50;

LEFT_GO = 60;

if (pointX 0)

{

ANGLE = -90;

pointX++;

pointy--;

W = 60;

H = 50;

}

if (RIGHT_GO 50)

{

RIGHT_GO = 0;

}

else if (DIR == 38)

{

W = 50;

H = 60;

pointy = 150;

ANGLE = 0;

RIGHT_GO = 100;

}

else if (DIR == 40)

{

W = 50;

H = 60;

ANGLE = 0;

pointy = 200;

RIGHT_GO = 0;

}

Thread.sleep (sleepTime);

repaint ();

}

catch (InterruptedException e)

{

break;

}

else

{

RIGHT_GO = RIGHT_GO + 50;

LEFT_GO = 0;

pointX = pointX + 1;

if (RIGHT_GO 50)

{

RIGHT_GO = 0;

}

if (pointX 500)

{

pointX = 0;

}

try

{

Thread.sleep (sleepTime);

repaint ();

}

catch (InterruptedException e)

{

break;

}

thread = null;

}

/**

* 旋转图像为指定角度

* @param degree

* @return

public static BufferedImage rotateImage ( final BufferedImage image, final int angdeg, final boolean d )

{

int w = image.getWidth ();

int h = image.getHeight ();

int type = image.getColorModel ().getTransparency ();

BufferedImage img;

Graphics2D graphics2d;

( graphics2d = ( img = new BufferedImage (w, h, type) ).createGraphics () ).setRenderingHint (

RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);

graphics2d.rotate (d ? -Math.toRadians (angdeg) : Math.toRadians (angdeg), w / 2, h / 2);

graphics2d.drawImage (image, 0, 0, null);

graphics2d.dispose ();

return img;

}

public static void main ( String[] args )

{

EventQueue.invokeLater (new Runnable ()

{

@Override

public void run ()

{

final TestImage ti = new TestImage ();

ti.setSize (new Dimension (500, 300));

ti.setLocationRelativeTo (null);

ti.addWindowListener (new WindowAdapter ()

{

@Override

public void windowClosing ( WindowEvent e )

{

System.exit (0);

}

@Override

public void windowDeiconified ( WindowEvent e )

{

ti.canvas.start ();

}

@Override

public void windowIconified ( WindowEvent e )

{

ti.canvas.stop ();

}

});

ti.setResizable (false);

ti.canvas.start ();

ti.setVisible (true);

}

});

}

java如何实现图片拖动，放大缩小，旋转。

这个只是实现了移动，你参考以下吧！

public class MoveImage {

static int x,y;

private static int num=0;

private static Icon icon=null;

public static void main(String[] args) throws Exception{

JFrame f = new JFrame();

f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

f.getContentPane().setLayout(null);//这个要设置成 null

//图片

icon = new ImageIcon("d:/test.gif");//d:/test.gif本地一张图片

JLabel l = new JLabel(icon); //创建具有指定图像的 JLabel 实例。

l.setSize(icon.getIconWidth(),icon.getIconHeight());//设置面板的宽度和高度

l.setBorder(BorderFactory.createLineBorder(Color.red));//给图片加上红色外框

f.getContentPane().add(l);

f.setSize(900,700);

f.setVisible(true);

l.addMouseListener(new MouseAdapter(){

public void mousePressed(MouseEvent e){

x=e.getX();

y=e.getY();

}

});

l.addMouseMotionListener(new MouseMotionListener(){

public void mouseDragged(MouseEvent e) {

JLabel l = (JLabel)e.getSource();

l.setLocation(l.getX()+e.getX()-x,l.getY()+e.getY()-y);

}

public void mouseMoved(MouseEvent e) {}

});

}

如何用Java实现图形的放大和缩小？

要用Java实现图形的放大和缩小，可以使用以下代码：

import java.awt.*;import java.awt.event.*;import javax.swing.*;//实现矩形在规定时间间隔里循环放大缩小；

public class Test02 extends JFrame implements Runnable{ static int w = 0,h = 0; //w:矩形宽度,h:矩形高度；

boolean flag = false;//false:放大,true:缩小 public Test02(){ this.setSize (500,500); this.setVisible (true); this.setTitle (w+","+h); this.setLocationRelativeTo (this); this.setDefaultCloseOperation (JFrame.EXIT_ON_CLOSE); } public void paint(Graphics g){ int width = getWidth();

//窗口宽度 int height = getWidth(); //窗口高度 g.setColor (Color.WHITE); //设置画笔颜色 g.fillRect (0,0,width,height); //填充窗口 int x = (width-w)/2; //x:矩形左上角横坐标 int y = (height-h)/2; //y:矩形左上角纵坐标 g.setColor (Color.BLUE); //同上... g.drawRect (x,y,w,h);

//画矩形，实心矩形为fillRect(....) g.setColor (Color.RED); //同上... g.drawOval (x,y,w,h); //画椭圆 setTitle (w+","+h); //以矩形宽和高来设置窗口标题 } public void setSize(){ float n = getWidth()/getWidth(); if(w==0||h==0) flag = false;

if(w==getWidth()||h==getWidth()) flag = true; if(!flag){ w+=1; h+=n; } if(flag){ w-=1; h-=n; } } public void run(){ while(true){ try{ Thread.sleep (5);//间隔 }catch(InterruptedException ie){} setSize(); repaint(); } } public static void main(String[] args){ Test02 t = new Test02(); Thread th = new Thread(t); th.start(); }}

Java是一门面向对象编程语言，不仅吸收了C++语言的各种优点，还摒弃了C++里难以理解的多继承、指针等概念，因此Java语言具有功能强大和简单易用两个特征。Java语言作为静态面向对象编程语言的代表，极好地实现了面向对象理论，允许程序员以优雅的思维方式进行复杂的编程。

Java具有简单性、面向对象、分布式、健壮性、安全性、平台独立与可移植性、多线程、动态性等特点。Java可以编写桌面应用程序、Web应用程序、分布式系统和嵌入式系统应用程序等。

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java放大动画代码,java代码怎么放大

android 不用XML，怎样在代码里用animation同时实现图片的缩放和移动。

如何用Java实现图形的放大和缩小

怎么用java代码放大或缩小图片不失真。

求java做动画代码

java如何实现图片拖动，放大缩小，旋转。

如何用Java实现图形的放大和缩小？

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