android菜单展开的动画效果

package android.view.ext; import java.lang.ref.WeakReference; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import java.util.Map; import java.util.concurrent.atomic.AtomicBoolean; import android.content.Context; import android.content.res.TypedArray; import android.graphics.drawable.Drawable; import android.os.Parcel; import android.os.Parcelable; import android.util.AttributeSet; import android.view.LayoutInflater; import android.view.View; import android.view.animation.Animation; import android.widget.FrameLayout; import android.widget.ImageView; import android.widget.TextView; public class SatelliteMenu extends FrameLayout { private static final int DEFAULT_SATELLITE_DISTANCE = 200; private static final float DEFAULT_TOTAL_SPACING_DEGREES = 90f; private static final boolean DEFAULT_CLOSE_ON_CLICK = true; private static final int DEFAULT_EXPAND_DURATION = 400; private Animation mainRotateRight; private Animation mainRotateLeft; private ImageView imgMain; private SateliteClickedListener itemClickedListener; private InternalSatelliteOnClickListener internalItemClickListener; private List<SatelliteMenuItem> menuItems = new ArrayList<SatelliteMenuItem>(); private Map<View, SatelliteMenuItem> viewToItemMap = new HashMap<View, SatelliteMenuItem>(); private AtomicBoolean plusAnimationActive = new AtomicBoolean(false); //States of these variables are saved private boolean rotated = false; private int measureDiff = 0; //States of these variables are saved - Also configured from XML private float totalSpacingDegree = 90f; private int satelliteDistance = DEFAULT_SATELLITE_DISTANCE; private int expandDuration = DEFAULT_EXPAND_DURATION; private boolean closeItemsOnClick = DEFAULT_CLOSE_ON_CLICK; public SatelliteMenu(Context context) { super(context); init(context, null, 0); } public SatelliteMenu(Context context, AttributeSet attrs) { super(context, attrs); init(context, attrs, 0); } public SatelliteMenu(Context context, AttributeSet attrs, int defStyle) { super(context, attrs, defStyle); init(context, attrs, defStyle); } private void init(Context context, AttributeSet attrs, int defStyle) { inflate(context, R.layout.sat_main, this); imgMain = (ImageView) findViewById(R.id.sat_main); if(attrs != null){ TypedArray typedArray = context.obtainStyledAttributes(attrs, R.styleable.SatelliteMenu, defStyle, 0); satelliteDistance = typedArray.getDimensionPixelSize(R.styleable.SatelliteMenu_satelliteDistance, DEFAULT_SATELLITE_DISTANCE); totalSpacingDegree = typedArray.getFloat(R.styleable.SatelliteMenu_totalSpacingDegree, DEFAULT_TOTAL_SPACING_DEGREES); closeItemsOnClick = typedArray.getBoolean(R.styleable.SatelliteMenu_closeOnClick, DEFAULT_CLOSE_ON_CLICK); expandDuration = typedArray.getInt(R.styleable.SatelliteMenu_expandDuration, DEFAULT_EXPAND_DURATION); //float satelliteDistance = TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 170, getResources().getDisplayMetrics()); typedArray.recycle(); } mainRotateLeft = SatelliteAnimationCreator.createMainButtonAnimation(context); mainRotateRight = SatelliteAnimationCreator.createMainButtonInverseAnimation(context); Animation.AnimationListener plusAnimationListener = new Animation.AnimationListener() { @Override public void onAnimationStart(Animation animation) { } @Override public void onAnimationRepeat(Animation animation) { } @Override public void onAnimationEnd(Animation animation) { plusAnimationActive.set(false); } }; mainRotateLeft.setAnimationListener(plusAnimationListener); mainRotateRight.setAnimationListener(plusAnimationListener); imgMain.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { SatelliteMenu.this.onClick(); } }); internalItemClickListener = new InternalSatelliteOnClickListener(this); } private void onClick() { if (plusAnimationActive.compareAndSet(false, true)) { if (!rotated) { imgMain.startAnimation(mainRotateLeft); for (SatelliteMenuItem item : menuItems) { item.getView().startAnimation(item.getOutAnimation()); } } else { imgMain.startAnimation(mainRotateRight); for (SatelliteMenuItem item : menuItems) { item.getView().startAnimation(item.getInAnimation()); } } rotated = !rotated; } } private void openItems() { if (plusAnimationActive.compareAndSet(false, true)) { if (!rotated) { imgMain.startAnimation(mainRotateLeft); for (SatelliteMenuItem item : menuItems) { item.getView().startAnimation(item.getOutAnimation()); } } rotated = !rotated; } } private void closeItems() { if (plusAnimationActive.compareAndSet(false, true)) { if (rotated) { imgMain.startAnimation(mainRotateRight); for (SatelliteMenuItem item : menuItems) { item.getView().startAnimation(item.getInAnimation()); } } rotated = !rotated; } } public void addItems(List<SatelliteMenuItem> items) { menuItems.addAll(items); this.removeView(imgMain); TextView tmpView = new TextView(getContext()); tmpView.setLayoutParams(new FrameLayout.LayoutParams(0, 0)); float[] degrees = getDegrees(menuItems.size()); int index = 0; for (SatelliteMenuItem menuItem : menuItems) { int finalX = SatelliteAnimationCreator.getTranslateX( degrees[index], satelliteDistance); int finalY = SatelliteAnimationCreator.getTranslateY( degrees[index], satelliteDistance); ImageView itemView = (ImageView) LayoutInflater.from(getContext()) .inflate(R.layout.sat_item_cr, this, false); ImageView cloneView = (ImageView) LayoutInflater.from(getContext()) .inflate(R.layout.sat_item_cr, this, false); itemView.setTag(menuItem.getId()); cloneView.setVisibility(View.GONE); itemView.setVisibility(View.GONE); cloneView.setOnClickListener(internalItemClickListener); cloneView.setTag(Integer.valueOf(menuItem.getId())); FrameLayout.LayoutParams layoutParams = getLayoutParams(cloneView); layoutParams.bottomMargin = Math.abs(finalY); layoutParams.leftMargin = Math.abs(finalX); cloneView.setLayoutParams(layoutParams); if (menuItem.getImgResourceId() > 0) { itemView.setImageResource(menuItem.getImgResourceId()); cloneView.setImageResource(menuItem.getImgResourceId()); } else if (menuItem.getImgDrawable() != null) { itemView.setImageDrawable(menuItem.getImgDrawable()); cloneView.setImageDrawable(menuItem.getImgDrawable()); } Animation itemOut = SatelliteAnimationCreator.createItemOutAnimation(getContext(), index,expandDuration, finalX, finalY); Animation itemIn = SatelliteAnimationCreator.createItemInAnimation(getContext(), index, expandDuration, finalX, finalY); Animation itemClick = SatelliteAnimationCreator.createItemClickAnimation(getContext()); menuItem.setView(itemView); menuItem.setCloneView(cloneView); menuItem.setInAnimation(itemIn); menuItem.setOutAnimation(itemOut); menuItem.setClickAnimation(itemClick); menuItem.setFinalX(finalX); menuItem.setFinalY(finalY); itemIn.setAnimationListener(new SatelliteAnimationListener(itemView, true, viewToItemMap)); itemOut.setAnimationListener(new SatelliteAnimationListener(itemView, false, viewToItemMap)); itemClick.setAnimationListener(new SatelliteItemClickAnimationListener(this, menuItem.getId())); this.addView(itemView); this.addView(cloneView); viewToItemMap.put(itemView, menuItem); viewToItemMap.put(cloneView, menuItem); index++; } this.addView(imgMain); } private float[] getDegrees(int count) { float[] result = null; int tmpCount = count - 1; result = new float[count]; float delta = totalSpacingDegree / tmpCount; for (int index = 0; index < count; index++) { int tmpIndex = index; System.out.println("=====index=" + index + "tmpIndex=" + tmpIndex); if (count < 4) { tmpIndex = tmpIndex + 1