图片旋转的两种方法

简单的图片旋转效果，第一种方法采用tween动画实现，调用customView1(); 第二种采用了自定义类，然后通过handlermessage来实现。

TestSimpleActivity.java

package com.goso.ui;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.animation.Animation;
import android.view.animation.LinearInterpolator;
import android.view.animation.RotateAnimation;
import android.widget.Button;
import android.widget.EditText;
import android.widget.FrameLayout;
import android.widget.ImageView;
import android.widget.LinearLayout;

public class TestSimpleActivity extends Activity{
EditText editText;
ImageView imageView;
RotateView mRotateView;
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
customView1();
}

private void customView2(){
LinearLayout lv = new LinearLayout(this);
LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT,
LinearLayout.LayoutParams.MATCH_PARENT);
lv.setOrientation(LinearLayout.VERTICAL);
lv.setLayoutParams(params);

Button btn = new Button(this);
btn.setText("更新");
LinearLayout.LayoutParams btnParams = new LinearLayout.LayoutParams(200,
LinearLayout.LayoutParams.WRAP_CONTENT);
lv.addView(btn, btnParams);
btn.setOnClickListener(new View.OnClickListener() {

@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
mRotateView.startRotate();
}
});

Button btn_stop = new Button(this);
btn_stop.setText("停止");
LinearLayout.LayoutParams stopParams = new LinearLayout.LayoutParams(200,
LinearLayout.LayoutParams.WRAP_CONTENT);
lv.addView(btn_stop, stopParams);
btn_stop.setOnClickListener(new View.OnClickListener() {

@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
mRotateView.stopRotate();
}
});

mRotateView = new RotateView(this);
LinearLayout.LayoutParams myViewParams = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT,
LinearLayout.LayoutParams.WRAP_CONTENT);
lv.addView(mRotateView, myViewParams);
setContentView(lv);
}

private void customView1(){
LinearLayout lv = new LinearLayout(this);
LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT,
LinearLayout.LayoutParams.MATCH_PARENT);
lv.setOrientation(LinearLayout.VERTICAL);
lv.setLayoutParams(params);

Button btn = new Button(this);
btn.setText("更新");
LinearLayout.LayoutParams btnParams = new LinearLayout.LayoutParams(200,
LinearLayout.LayoutParams.WRAP_CONTENT);
lv.addView(btn, btnParams);
btn.setOnClickListener(new View.OnClickListener() {

@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
// editText.setText("Hello Android!");
// Animation anim = AnimationUtils.loadAnimation(getApplicationContext(), R.anim.push_left_in);
// editText.setAnimation(anim);
imageView.setVisibility(View.VISIBLE);
Animation rotateAnimation = new RotateAnimation(0f, +360f,
Animation.RELATIVE_TO_SELF, 0.5f,
Animation.RELATIVE_TO_SELF, 0.5f);
LinearInterpolator lir = new LinearInterpolator();
rotateAnimation.setDuration(1000);
rotateAnimation.setRepeatCount(-1);
rotateAnimation.setInterpolator(lir);
imageView.startAnimation(rotateAnimation);
}
});

Button btn_stop = new Button(this);
btn_stop.setText("停止");
LinearLayout.LayoutParams stopParams = new LinearLayout.LayoutParams(200,
LinearLayout.LayoutParams.WRAP_CONTENT);
lv.addView(btn_stop, stopParams);
btn_stop.setOnClickListener(new View.OnClickListener() {

@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
imageView.clearAnimation();
imageView.setVisibility(View.INVISIBLE);
}
});

FrameLayout frameLayout = new FrameLayout(this);
FrameLayout.LayoutParams frameParams = new FrameLayout.LayoutParams(FrameLayout.LayoutParams.MATCH_PARENT,
FrameLayout.LayoutParams.MATCH_PARENT);
frameLayout.setLayoutParams(frameParams);

ImageView bgImageView = new ImageView(this);
bgImageView.setImageResource(R.drawable.record_circle);
FrameLayout.LayoutParams bgimageParams = new FrameLayout.LayoutParams(FrameLayout.LayoutParams.WRAP_CONTENT,
FrameLayout.LayoutParams.WRAP_CONTENT);
frameLayout.addView(bgImageView, bgimageParams);

imageView = new ImageView(this);
imageView.setImageResource(R.drawable.record_rotate);
FrameLayout.LayoutParams imageParams = new FrameLayout.LayoutParams(FrameLayout.LayoutParams.WRAP_CONTENT,
FrameLayout.LayoutParams.WRAP_CONTENT);

frameLayout.addView(imageView, imageParams);
imageView.setVisibility(View.INVISIBLE);
lv.addView(frameLayout);
setContentView(lv);
}

}

RotateView.java:

package com.goso.ui;

import android.content.Context;
import android.graphics.Canvas;
import android.graphics.drawable.Drawable;
import android.os.Handler;
import android.view.View;

public class RotateView extends View{
private Drawable mBgDrawable;
private Drawable mRotateDrawable;

public RotateView(Context context) {
super(context);
// TODO Auto-generated constructor stub
init(context);
}

private void init(Context context){
mBgDrawable = context.getResources().getDrawable(R.drawable.record_circle);
mRotateDrawable = context.getResources().getDrawable(R.drawable.record_rotate);
mRotateWidth = mRotateDrawable.getIntrinsicWidth();
mRotateHeight = mRotateDrawable.getIntrinsicHeight();
mRotateDrawable.setBounds(0, 0, mRotateWidth, mRotateHeight);
setBackgroundDrawable(mBgDrawable);
}

@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
// TODO Auto-generated method stub
//super.onMeasure(widthMeasureSpec, heightMeasureSpec);
int width = mBgDrawable.getIntrinsicWidth();
int height = mBgDrawable.getIntrinsicHeight();
setMeasuredDimension(width, height);
}

private static final int step = 15;
private int mRotateWidth;
private int mRotateHeight;
private int angle = 0;
private boolean mRun;
private Handler mHandler = new Handler(){
public void handleMessage(android.os.Message msg) {
angle = (angle + step) % 360;
invalidate();
if(mRun){
mHandler.sendMessageDelayed(mHandler.obtainMessage(), 10L);
}
};
};

@Override
protected void onDraw(Canvas canvas) {
// TODO Auto-generated method stub
super.onDraw(canvas);
if(mRun) {
canvas.rotate(angle, mRotateWidth / 2, mRotateHeight / 2);
mRotateDrawable.draw(canvas);
}
}

public void stopRotate(){
mRun = false;
}

public void startRotate(){
mRun = true;
mHandler.sendMessageDelayed(mHandler.obtainMessage(), 10L);
}

}

图片旋转的两种方法_第1张图片

图片旋转的两种方法_第2张图片

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