android负一屏服务端实现及对应的客户端demo

package com.hsae.hiboardservice.view; import android.animation.Animator; import android.animation.ValueAnimator; import android.content.Context; import android.content.Intent; import android.content.res.Configuration; import android.os.Bundle; import android.os.Message; import android.os.Messenger; import android.os.RemoteException; import android.support.annotation.NonNull; import android.support.annotation.Nullable; import android.util.AttributeSet; import android.util.Log; import android.view.LayoutInflater; import android.view.MotionEvent; import android.view.View; import android.widget.Button; import android.widget.FrameLayout; import com.hsae.hiboardservice.R; import com.hsae.hiboardservice.utils.LogUtils; import com.hsae.hiboardservice.utils.Utilties; import static com.hsae.hiboardservice.common.Messages.WHAT_UPDATE_SCROLL; public class HiboardWorkspace extends FrameLayout{ private final static String TAG = HiboardWorkspace.class.getSimpleName(); private static final float RETURN_TO_ORIGINAL_PAGE_THRESHOLD = 0.12f; private Messenger mRemoteMessenger; private boolean canScroll = true; private int startX; public float curOffsetProgress; private int width; private boolean isLeftmostWorkspaceShown = false; ValueAnimator animator; boolean toDesktop = false; boolean onHomeKey = false; private int mLastXIntercept; private int mLastYIntercept; private long beginScrollTime; private String error = null; public HiboardWorkspace(@NonNull Context context) { this(context, null); } public HiboardWorkspace(@NonNull Context context, @Nullable AttributeSet attrs) { this(context, attrs, -1); } public HiboardWorkspace(@NonNull Context context, @Nullable AttributeSet attrs, int defStyleAttr) { this(context, attrs, defStyleAttr, -1); } public HiboardWorkspace(@NonNull Context context, @Nullable AttributeSet attrs, int defStyleAttr, int defStyleRes) { super(context, attrs, defStyleAttr, defStyleRes); init(); } private void init(){ width = Utilties.getScreenMaxWidth(getContext()); } public void setMessenger(Messenger mMessenger) { this.mRemoteMessenger = mMessenger; } public void setCanScroll(boolean canScroll) { this.canScroll = canScroll; } private boolean canScroll() { return canScroll; } @Override public boolean onInterceptTouchEvent(MotionEvent ev) { boolean intercepted = false; int x = (int) ev.getRawX(); int y = (int) ev.getRawY(); switch (ev.getAction()) { case MotionEvent.ACTION_DOWN: startX = x; //startY = y; intercepted = false; break; case MotionEvent.ACTION_MOVE: if (!canScroll()) { return false; } int deltaX = x - mLastXIntercept; int deltaY = y - mLastYIntercept; intercepted = Math.abs(deltaX) > Math.abs(deltaY); if(intercepted){ onTouchEvent(ev); } break; case MotionEvent.ACTION_UP: intercepted = false; break; default: break; } mLastXIntercept = x; mLastYIntercept = y; return intercepted; } @Override public boolean onTouchEvent(MotionEvent event) { int x = (int) event.getRawX(); int y = (int) event.getRawY(); switch (event.getAction()) { case MotionEvent.ACTION_DOWN: // yzd 只有当处于正常模式时才能滑动到负一屏 if (!canScroll()) { return false; } break; case MotionEvent.ACTION_MOVE: if (x < startX) { curOffsetProgress = (float) ((width - startX + x)/(width * 1.0)); updateViewAlpha(); Message msg = Message.obtain(null, WHAT_UPDATE_SCROLL); msg.arg1 = Float.floatToIntBits(curOffsetProgress); sendRemote(msg); setTranslationX(-(1 - curOffsetProgress) * width); } break; case MotionEvent.ACTION_UP: if (x < startX) { if (curOffsetProgress <= 1 - RETURN_TO_ORIGINAL_PAGE_THRESHOLD) { startProcessAnimator(curOffsetProgress, 0); } else { startProcessAnimator(curOffsetProgress, 1); } } break; default:break; } return true; } private synchronized boolean sendRemote(Message msg) { if (this.mRemoteMessenger == null) { LogUtils.d(TAG, "sendRemote mRemoteMessenger is null"); return false; } try { this.mRemoteMessenger.send(msg); return true; } catch (RemoteException e) { handleConnectionError(e); } return false; } private synchronized void handleConnectionError(RemoteException e) { LogUtils.e(TAG, " handleConnectionError: " + e.getMessage()); } public void startProcessAnimator(float from, float to) { isLeftmostWorkspaceShown = to == 1; if (animator != null && animator.isRunning()) { animator.cancel(); } animator = ValueAnimator.ofFloat(from, to); animator.setDuration(200); animator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() { @Override public void onAnimationUpdate(ValueAnimator animation) { float offset = (float)animation.getAnimatedValue(); curOffsetProgress = offset; Message msg = Message.obtain(null, WHAT_UPDATE_SCROLL); msg.arg1 = Float.floatToIntBits(curOffsetProgress); sendRemote(msg); setTranslationX(-(1 - curOffsetProgress) * width); updateViewAlpha(); if (curOffsetProgress == 1) { if (!toDesktop && !onHomeKey) { //onLeftmostShow(); } toDesktop = false; } if (curOffsetProgress == 0 && onHomeKey) { onHomeKey = false; } } }); animator.addListener(new Animator.AnimatorListener() { @Override public void onAnimationStart(Animator animation) { } @Override public void onAnimationEnd(Animator animation) { if(curOffsetProgress == 0) { setVisibility(GONE); }else{ setVisibility(VISIBLE); } } @Override public void onAnimationCancel(Animator animation) { } @Override public void onAnimationRepeat(Animator animation) { } }); animator.start(); } public void onResume() { LogUtils.i(TAG, "onResume curOffsetProgress: " + curOffsetProgress); if (curOffsetProgress == 0) { width = Utilties.getScreenMaxWidth(getContext()); setTranslationX(-width); } else { //onLeftmostShow(); //sortCardsUI(); } } public void onPause() { LogUtils.i(TAG, "onPause"); hide(); } /** * 隐藏负一屏 */ public void hide(){ setTranslationX(-width); setVisibility(GONE); startProcessAnimator(curOffsetProgress, 0); curOffsetProgress = 0; Message msg = Mes