Example usage for java.lang.ref WeakReference WeakReference

List of usage examples for java.lang.ref WeakReference WeakReference

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Introduction

In this page you can find the example usage for java.lang.ref WeakReference WeakReference.

Prototype

public WeakReference(T referent)

Source Link

Document

Creates a new weak reference that refers to the given object.

Usage

From source file:org.nabucco.alfresco.enhScriptEnv.common.script.functions.AbstractLogFunction.java

protected void handleRegisterChildScope(final Object parentScope, final Object childScope) {
    ParameterCheck.mandatory("parentScope", parentScope);
    ParameterCheck.mandatory("childScope", childScope);

    final ReferenceScript script = this.scriptProcessor.getContextScriptLocation();
    this.scopeParentLock.writeLock().lock();
    try {/*  w  ww  .j av  a 2s  .c  o  m*/
        this.scopeParents.put(childScope, new Pair<WeakReference<Object>, ReferenceScript>(
                new WeakReference<Object>(parentScope), script));
    } finally {
        this.scopeParentLock.writeLock().unlock();
    }
}

From source file:android.support.designox.widget.BottomSheetBehavior.java

@Override
public boolean onLayoutChild(CoordinatorLayout parent, V child, int layoutDirection) {
    // First let the parent lay it out
    if (mState != STATE_DRAGGING && mState != STATE_SETTLING) {
        parent.onLayoutChild(child, layoutDirection);
    }//from ww w. j a va2s .  com
    // Offset the bottom sheet
    mParentHeight = parent.getHeight();
    mMinOffset = Math.max(0, mParentHeight - child.getHeight());
    mMaxOffset = Math.max(mParentHeight - mPeekHeight, mMinOffset);
    if (mState == STATE_EXPANDED) {
        ViewCompat.offsetTopAndBottom(child, mMinOffset);
    } else if (mHideable && mState == STATE_HIDDEN) {
        ViewCompat.offsetTopAndBottom(child, mParentHeight);
    } else if (mState == STATE_COLLAPSED) {
        ViewCompat.offsetTopAndBottom(child, mMaxOffset);
    }
    if (mViewDragHelper == null) {
        mViewDragHelper = ViewDragHelper.create(parent, mDragCallback);
    }
    mViewRef = new WeakReference<>(child);
    mNestedScrollingChildRef = new WeakReference<>(findScrollingChild(child));
    return true;
}

From source file:com.example.g40_70m.framedemo.view.photoview.PhotoViewAttacher.java

public PhotoViewAttacher(ImageView imageView, boolean zoomable) {
    mImageView = new WeakReference<>(imageView);

    imageView.setDrawingCacheEnabled(true);
    imageView.setOnTouchListener(this);

    ViewTreeObserver observer = imageView.getViewTreeObserver();
    if (null != observer)
        observer.addOnGlobalLayoutListener(this);

    // Make sure we using MATRIX Scale Type
    setImageViewScaleTypeMatrix(imageView);

    if (imageView.isInEditMode()) {
        return;/*from w ww.j  a  va  2  s.c  om*/
    }
    // Create Gesture Detectors...
    mScaleDragDetector = VersionedGestureDetector.newInstance(imageView.getContext(), this);
    mGestureDetector = new GestureDetector(imageView.getContext().getApplicationContext(),
            new GestureDetector.SimpleOnGestureListener() {

                @Override
                public boolean onDown(MotionEvent e) {
                    downTime = System.currentTimeMillis();
                    singeClick = !singeClick;
                    return super.onDown(e);
                }

                @Override
                public boolean onSingleTapUp(MotionEvent e) {
                    if (System.currentTimeMillis() - downTime < 200) {
                        getImageView().postDelayed(new Runnable() {//300? ?
                            @Override
                            public void run() {
                                if (singeClick) {
                                    onClickListener.onClick(getImageView());
                                }
                            }
                        }, 300);
                    }
                    downTime = 0;
                    return super.onSingleTapUp(e);
                }

                // forward long click listener
                @Override
                public void onLongPress(MotionEvent e) {
                    singeClick = false;
                    if (null != mLongClickListener) {
                        mLongClickListener.onLongClick(getImageView());
                    }
                }

                @Override
                public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) {
                    if (mSingleFlingListener != null) {
                        if (getScale() > DEFAULT_MIN_SCALE) {
                            return false;
                        }
                        if (MotionEventCompat.getPointerCount(e1) > SINGLE_TOUCH
                                || MotionEventCompat.getPointerCount(e2) > SINGLE_TOUCH) {
                            return false;
                        }

                        return mSingleFlingListener.onFling(e1, e2, velocityX, velocityY);
                    }
                    return false;
                }
            });

    mGestureDetector.setOnDoubleTapListener(new DefaultOnDoubleTapListener(this));
    mBaseRotation = 0.0f;

    // Finally, update the UI so that we're zoomable
    setZoomable(zoomable);
}

From source file:com.bilibili.magicasakura.utils.TintManager.java

private boolean addCachedDrawable(final int key, @NonNull final Drawable drawable) {
    if (drawable instanceof FilterableStateListDrawable) {
        return false;
    }//from  w ww. j ava2 s.  c o m
    final Drawable.ConstantState cs = drawable.getConstantState();
    if (cs != null) {
        synchronized (mDrawableCacheLock) {
            if (mCacheDrawables == null) {
                mCacheDrawables = new SparseArray<>();
            }
            mCacheDrawables.put(key, new WeakReference<>(cs));
        }
        return true;
    }
    return false;
}

From source file:am.widget.basetabstrip.BaseTabStrip.java

/**
 * ?PagerAdapter// ww  w  .j a v  a  2 s.  co m
 *
 * @param oldAdapter Adapter
 * @param newAdapter Adapter
 */
protected void bindPagerAdapter(PagerAdapter oldAdapter, PagerAdapter newAdapter) {
    if (oldAdapter != null) {
        oldAdapter.unregisterDataSetObserver(mPageListener);
        mWatchingAdapter = null;
    }
    if (newAdapter != null) {
        newAdapter.registerDataSetObserver(mPageListener);
        mWatchingAdapter = new WeakReference<>(newAdapter);
    }
    createItemBackgrounds();
    onBindPagerAdapter();
    checkCurrentItem();
    requestLayout();
    invalidate();
}

From source file:JDBCPool.dbcp.demo.sourcecode.BaseGenericObjectPool.java

/**
 * Handles JMX registration (if required) and the initialization required for
 * monitoring.//from   w ww . j  a v  a2s . co m
 *
 * @param config        Pool configuration
 * @param jmxNameBase   The default base JMX name for the new pool unless
 *                      overridden by the config
 * @param jmxNamePrefix Prefix to be used for JMX name for the new pool
 */
public BaseGenericObjectPool(BaseObjectPoolConfig config, String jmxNameBase, String jmxNamePrefix) {
    if (config.getJmxEnabled()) {
        this.oname = jmxRegister(config, jmxNameBase, jmxNamePrefix);
    } else {
        this.oname = null;
    }

    // Populate the creation stack trace
    this.creationStackTrace = getStackTrace(new Exception());

    // save the current TCCL (if any) to be used later by the evictor Thread
    ClassLoader cl = Thread.currentThread().getContextClassLoader();
    if (cl == null) {
        factoryClassLoader = null;
    } else {
        factoryClassLoader = new WeakReference<ClassLoader>(cl);
    }

    fairness = config.getFairness();
}

From source file:com.gargoylesoftware.htmlunit.javascript.background.DefaultJavaScriptExecutor.java

private synchronized void updateJobMangerList(final JavaScriptJobManager newJobManager) {
    for (WeakReference<JavaScriptJobManager> weakReference : jobManagerList_) {
        final JavaScriptJobManager manager = weakReference.get();
        if (newJobManager == manager) {
            return;
        }/*from ww  w. j a  v  a  2  s.  c om*/
    }

    final List<WeakReference<JavaScriptJobManager>> managers = new LinkedList<>();
    for (WeakReference<JavaScriptJobManager> weakReference : jobManagerList_) {
        final JavaScriptJobManager manager = weakReference.get();
        if (null != manager) {
            managers.add(weakReference);
        }
    }
    managers.add(new WeakReference<>(newJobManager));
    jobManagerList_ = managers;
}

From source file:com.demos.support_23_2.MyBottomBehavior.java

@Override
public boolean onLayoutChild(CoordinatorLayout parent, V child, int layoutDirection) {
    // First let the parent lay it out
    if (mState != STATE_DRAGGING && mState != STATE_SETTLING) {
        parent.onLayoutChild(child, layoutDirection);
    }//from  w ww .  j  av a2s .  c  om
    // Offset the bottom sheet
    mParentHeight = parent.getHeight();
    mMinOffset = Math.max(0, mParentHeight - child.getHeight());
    mMaxOffset = mParentHeight - mPeekHeight;
    if (mState == STATE_EXPANDED) {
        ViewCompat.offsetTopAndBottom(child, mMinOffset);
    } else if (mHideable && mState == STATE_HIDDEN) {
        ViewCompat.offsetTopAndBottom(child, mParentHeight);
    } else if (mState == STATE_COLLAPSED) {
        ViewCompat.offsetTopAndBottom(child, mMaxOffset);
    }
    if (mViewDragHelper == null) {
        mViewDragHelper = ViewDragHelper.create(parent, mDragCallback);
    }
    mViewRef = new WeakReference<>(child);
    mNestedScrollingChildRef = new WeakReference<>(findScrollingChild(child));
    return true;
}

From source file:com.android.launcher2.AsyncTaskCallback.java

public void set(T t) {
    mThreadLocal.set(new WeakReference<T>(t));
}

From source file:com.achep.acdisplay.services.activemode.sensors.ProximitySensor.java

@NonNull
public static ProximitySensor getInstance() {
    ProximitySensor sensor = sProximitySensorWeak != null ? sProximitySensorWeak.get() : null;
    if (sensor == null) {
        sensor = new ProximitySensor();
        sProximitySensorWeak = new WeakReference<>(sensor);
    }//  ww  w  .  j  a va2  s  . c  o m
    return sensor;
}