Android+随手势进行3D旋转的源码

package cy.test.rotate3d; import android.app.Activity; import android.os.Bundle; import android.util.DisplayMetrics; import android.util.Log; import android.view.MotionEvent; import android.view.VelocityTracker; import android.view.View; import android.view.View.OnClickListener; import android.view.View.OnTouchListener; import android.view.ViewGroup; import android.widget.ImageView; import android.widget.RelativeLayout; public class RotateActivity extends Activity implements OnTouchListener { private ViewGroup layoutmain; private ViewGroup layoutnext; private ViewGroup layoutlast; private Rotate3D rotate3d; private Rotate3D rotate3d2; private Rotate3D rotate3d3; private int mCenterX ; private int mCenterY ; private float degree = (float) 0.0; private int currentTab = 0; private float perDegree; private VelocityTracker mVelocityTracker; private boolean areButtonsShowing; private RelativeLayout composerButtonsWrapper; private ImageView composerButtonsShowHideButtonIcon; private RelativeLayout composerButtonsShowHideButton; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); initMain(); MyAnimations.initOffset(this); // 加号的动画 composerButtonsShowHideButton.startAnimation(MyAnimations.getRotateAnimation(0, 360, 200)); DisplayMetrics dm = new DisplayMetrics(); dm = getResources().getDisplayMetrics(); mCenterX = dm.widthPixels / 2; mCenterY = dm.heightPixels / 2; perDegree = (float) (90.0 / dm.widthPixels); } private void setListener() { // 给大按钮设置点击事件 composerButtonsShowHideButton.setOnClickListener(new OnClickListener() { public void onClick(View v) { if (!areButtonsShowing) { // 图标的动画 MyAnimations.startAnimationsIn(composerButtonsWrapper, 300); // 加号的动画 composerButtonsShowHideButtonIcon.startAnimation(MyAnimations.getRotateAnimation(0, -225, 300)); } else { // 图标的动画 MyAnimations.startAnimationsOut(composerButtonsWrapper, 300); // 加号的动画 composerButtonsShowHideButtonIcon.startAnimation(MyAnimations.getRotateAnimation(-225, 0, 300)); } areButtonsShowing = !areButtonsShowing; } }); // 给小图标设置点击事件 for (int i = 0; i < composerButtonsWrapper.getChildCount(); i++) { final ImageView smallIcon = (ImageView) composerButtonsWrapper.getChildAt(i); final int position = i; smallIcon.setOnClickListener(new View.OnClickListener() { public void onClick(View arg0) { // 这里写各个item的点击事件 // 1.加号按钮缩小后消失 缩小的animation // 2.其他按钮缩小后消失 缩小的animation // 3.被点击按钮放大后消失 透明度渐变 放大渐变的animation //composerButtonsShowHideButton.startAnimation(MyAnimations.getMiniAnimation(300)); if(areButtonsShowing){ composerButtonsShowHideButtonIcon.startAnimation(MyAnimations.getRotateAnimation(-225, 0, 300)); smallIcon.startAnimation(MyAnimations.getMaxAnimation(400)); for (int j = 0; j < composerButtonsWrapper.getChildCount(); j++) { if (j != position) { final ImageView smallIcon = (ImageView) composerButtonsWrapper.getChildAt(j); smallIcon.startAnimation(MyAnimations.getMiniAnimation(300)); //MyAnimations.getMiniAnimation(300).setFillAfter(true); } } areButtonsShowing = !areButtonsShowing; } } }); } } private void initMain(){ setContentView(R.layout.main); composerButtonsWrapper = (RelativeLayout) findViewById(R.id.composer_buttons_wrapper); composerButtonsShowHideButton = (RelativeLayout) findViewById(R.id.composer_buttons_show_hide_button); composerButtonsShowHideButtonIcon = (ImageView) findViewById(R.id.composer_buttons_show_hide_button_icon); layoutnext = (ViewGroup) findViewById(R.id.layout_next); layoutnext.setOnTouchListener(this); layoutlast = (ViewGroup) findViewById(R.id.layout_last); layoutlast.setOnTouchListener(this); layoutmain = (ViewGroup)findViewById(R.id.layout_main); layoutmain.setOnTouchListener(this); setListener(); } private int mLastMotionX; public boolean onTouch(View arg0, MotionEvent event) { int x = (int) event.getX(); if (mVelocityTracker == null) { mVelocityTracker = VelocityTracker.obtain();//获得VelocityTracker类实例 } mVelocityTracker.addMovement(event);//将事件加入到VelocityTracker类实例中 switch (event.getAction()) { case MotionEvent.ACTION_DOWN: mLastMotionX = x; break; case MotionEvent.ACTION_MOVE: mVelocityTracker.computeCurrentVelocity(1000, 1000); Log.i("test","velocityTraker :"+mVelocityTracker.getXVelocity()); int dx = x - mLastMotionX; if(dx != 0){ doRotate(dx); if(degree > 90){ degree = 0; break; } }else{ return false; } mLastMotionX = x; break; case MotionEvent.ACTION_UP: //设置units的值为1000，意思为一秒时间内运动了多少个像素 mVelocityTracker.computeCurrentVelocity(1000); float VelocityX = mVelocityTracker.getXVelocity(); Log.i("test","velocityTraker2:"+mVelocityTracker.getXVelocity()); if(VelocityX > 500 || VelocityX < -500 ){ endRotateByVelocity(); }else{ endRotate(); } releaseVelocityTracker(); break; case MotionEvent.ACTION_CANCEL: releaseVelocityTracker(); break; } return true; } private void releaseVelocityTracker() { if(null != mVelocityTracker) { mVelocityTracker.clear(); mVelocityTracker.recycle(); mVelocityTracker = null; } } private void endRotateByVelocity(){ if(degree > 0){ rotate3d = new Rotate3D(degree , 90 , 0, mCenterX, mCenterY); rotate3d3 = new Rotate3D( - 90 + degree,0,0, mCenterX, mCenterY); rotate3d.setDuration(300); rotate3d3.setDuration(300); if(currentTab == 0){ layoutmain.startAnimation(rotate3d); layoutlast.startAnimation(rotate3d3); }else if(currentTab == 2){ layoutlast.startAnimation(rotate3d); layoutnext.startAnimation(rotate3d3); }else if(currentTab == 1){ layoutnext.startAnimation(rotate3d); layoutmain.startAnimation(rotate3d3); } currentTab =(currentTab - 1)%3; if(currentTab < 0){ currentTab = 2; } }else if(degree < 0){ rotate3d = new Rotate3D(degree , -90 , 0, mCenterX, mCenterY); rotate3d2 = new Rotate3D( 90 + degree,0,0, mCenterX, mCenterY); rotate3d.setDuration(300); rotate3d2.setDuration(300); if(currentTab == 0){ layoutmain.startAnimation(rotate3d); layoutnext.startAnimation(rotate3d2); }else if(currentTab == 1){ layoutnext.startAnimation(rotate3d); layoutlast.startAnimation(rotate3d2); }else if(currentTab == 2){ layoutlast.startAnimation(rotate3d); layoutmain.startAnimation(rotate3d2); } currentTab = (currentTab + 1)%3; } System.out.println(">>>>>>>>degree:"+degree +" currentTab:" + currentTab); setViewVisibile(); degree = 0; } private void endRotate() { if(degree > 45){ rotate3d = new Rotate3D(degree , 90 , 0, mCenterX, mCenterY); rotate3d3 = new Rotate3D( - 90 + degree,0,0, mCenterX, mCenterY); rotate3d.setDuration(300); rotate3d3.setDuration(300); if(currentTab == 0){ layoutmain.startAnimation(rotate3d); layoutlast.startAnimation(rotate3d3); }else if(currentTab == 2){ layoutlast.startAnimation(rotate3d); layoutnext.startAnimation(rotate3d3); }else if(currentTab == 1){ layoutnext.startAnimation(rota