本文整理了Java中android.graphics.Rect.isEmpty方法的一些代码示例，展示了Rect.isEmpty的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Rect.isEmpty方法的具体详情如下：
包路径：android.graphics.Rect
类名称：Rect
方法名：isEmpty

Rect.isEmpty介绍

[英]Returns true if the rectangle is empty (left >= right or top >= bottom)
[中]如果矩形为空（左>=右或上>=下），则返回true

代码示例

代码示例来源：origin: bluelinelabs/Conductor

@Override
  public Rect onGetEpicenter(Transition transition) {
    if (toEpicenter.isEmpty()) {
      return null;
    }
    return toEpicenter;
  }
});

代码示例来源：origin: facebook/litho

@Nullable
Rect getExpandedTouchBounds() {
 if (mExpandedTouchBounds == null || mExpandedTouchBounds.isEmpty()) {
  return null;
 }
 return mExpandedTouchBounds;
}

代码示例来源：origin: facebook/litho

private static int computeRectArea(Rect rect) {
 return rect.isEmpty() ? 0 : (rect.width() * rect.height());
}

代码示例来源：origin: rey5137/material

protected void drawSelectorCompat(Canvas canvas) {
  if (!mSelectorRect.isEmpty()) {
    final Drawable selector = getSelector();
    if (selector != null) {
      selector.setBounds(mSelectorRect);
      selector.draw(canvas);
    }
  }
}
/**

代码示例来源：origin: chentao0707/SimplifyReader

private void drawSelector(Canvas canvas) {
  if (shouldShowSelector() && mSelectorRect != null && !mSelectorRect.isEmpty()) {
    final Drawable selector = mSelector;
    selector.setBounds(mSelectorRect);
    selector.draw(canvas);
  }
}

代码示例来源：origin: sephiroth74/ImageViewZoom

@Override
public void draw(Canvas canvas) {
  if (null != mBitmap && !mBitmap.isRecycled()) {
    final Rect bounds = getBounds();
    if (!bounds.isEmpty()) {
      canvas.drawBitmap(mBitmap, null, bounds, mPaint);
    } else {
      canvas.drawBitmap(mBitmap, 0f, 0f, mPaint);
    }
  }
}

代码示例来源：origin: lyft/scissors

public static Bitmap asBitmap(Drawable drawable, int minWidth, int minHeight) {
  final Rect tmpRect = new Rect();
  drawable.copyBounds(tmpRect);
  if (tmpRect.isEmpty()) {
    tmpRect.set(0, 0, Math.max(minWidth, drawable.getIntrinsicWidth()), Math.max(minHeight, drawable.getIntrinsicHeight()));
    drawable.setBounds(tmpRect);
  }
  Bitmap bitmap = Bitmap.createBitmap(tmpRect.width(), tmpRect.height(), Bitmap.Config.ARGB_8888);
  drawable.draw(new Canvas(bitmap));
  return bitmap;
}

代码示例来源：origin: seven332/EhViewer

@Override
public void draw(@NonNull Canvas canvas) {
 Rect bounds = getBounds();
 if (!bounds.isEmpty()) {
  // Draw background
  backgroundPaint.setColor(backgroundColor);
  canvas.drawRect(bounds, backgroundPaint);
  if (!TextUtils.isEmpty(text)) {
   // Draw text
   updateTextSizeIfDirty(bounds);
   textPaint.setColor(textColor);
   canvas.drawText(text, x, y, textPaint);
  }
 }
}

代码示例来源：origin: nickbutcher/plaid

private void ensureExpandedTexture() {
  if (mExpandedTitleTexture != null || mExpandedBounds.isEmpty()
      || TextUtils.isEmpty(mTextToDraw)) {
    return;
  }
  mTextPaint.setTextSize(mExpandedTextSize);
  mTextPaint.setColor(mExpandedTextColor);
  mTextureAscent = mTextPaint.ascent();
  mTextureDescent = mTextPaint.descent();
  final int w = Math.round(mTextPaint.measureText(mTextToDraw, 0, mTextToDraw.length()));
  final int h = Math.round(mTextureDescent - mTextureAscent);
  if (w <= 0 && h <= 0) {
    return; // If the width or height are 0, return
  }
  mExpandedTitleTexture = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888);
  Canvas c = new Canvas(mExpandedTitleTexture);
  c.drawText(mTextToDraw, 0, mTextToDraw.length(), 0, h - mTextPaint.descent(), mTextPaint);
  if (mTexturePaint == null) {
    // Make sure we have a paint
    mTexturePaint = new Paint(Paint.ANTI_ALIAS_FLAG | Paint.FILTER_BITMAP_FLAG);
  }
}

代码示例来源：origin: square/assertj-android

public RectAssert isNotEmpty() {
 isNotNull();
 assertThat(actual.isEmpty()) //
   .overridingErrorMessage("Expected to not be empty but was.") //
   .isFalse();
 return this;
}

代码示例来源：origin: square/assertj-android

public RectAssert isEmpty() {
 isNotNull();
 assertThat(actual.isEmpty()) //
   .overridingErrorMessage("Expected to be empty but was not.") //
   .isTrue();
 return this;
}

代码示例来源：origin: dinuscxj/LoadingDrawable

@Override
public void draw(Canvas canvas) {
  if (!getBounds().isEmpty()) {
    this.mLoadingRender.draw(canvas);
  }
}

代码示例来源：origin: qiujuer/Genius-Android

@Override
protected void onBoundsChange(Rect bounds) {
  super.onBoundsChange(bounds);
  if (!mCustomMarkSize) {
    initIntrinsic();
  }
  if (bounds.isEmpty())
    return;
  mCenterX = bounds.centerX();
  mCenterY = bounds.centerY();
  int minCenter = Math.min(bounds.width(), bounds.height()) >> 1;
  int areRadius = minCenter - ((mBorderSize + 1) >> 1);
  mOval.set(mCenterX - areRadius, mCenterY - areRadius, mCenterX + areRadius, mCenterY + areRadius);
  mCircleRadius = minCenter - mBorderSize - mIntervalSize;
}

代码示例来源：origin: LuckyJayce/LargeImage

private void updateWindow(boolean force, boolean redrawNeeded) {
  if (lock) {
    return;
  }
  long c = SystemClock.uptimeMillis();
  if (c - time < 16) {
    return;
  }
  time = c;
  getLocationInWindow(tempLocationInWindow);
  final boolean visibleChanged = mVisible != mRequestedVisible;
  if (force || visibleChanged || tempLocationInWindow[0] != mLocation[0] || tempLocationInWindow[1] != mLocation[1] || redrawNeeded) {
    this.mLocation[0] = tempLocationInWindow[0];
    this.mLocation[1] = tempLocationInWindow[1];
    getVisibilityRect(tempVisibilityRect);
    if (!mVisibilityRect.equals(tempVisibilityRect)) {
      if (!(mVisibilityRect.isEmpty() && tempVisibilityRect.isEmpty())) {
        this.mVisibilityRect.set(tempVisibilityRect);
        onUpdateWindow(mVisibilityRect);
      }
    }
  }
}

代码示例来源：origin: seven332/EhViewer

@Override
  protected void onDraw(Canvas canvas) {
    super.onDraw(canvas);
    Rect rect = mRect;
    rect.set(getPaddingLeft(), getPaddingTop(),
        getWidth() - getPaddingRight(), getHeight() - getPaddingBottom());
    if (!rect.isEmpty()) {
      canvas.drawRect(rect, mPaint);
    }
  }
}

代码示例来源：origin: facebook/stetho

@Override
void highlightView(View view, Rect bounds, int mainColor) {
 mMainHighlightDrawable.setColor(mainColor);
 if (bounds.isEmpty()) {
  mMainHighlightDrawable.setBounds(0, 0, view.getWidth(), view.getHeight());
 } else {
  mMainHighlightDrawable.setBounds(bounds);
 }
 int total = mHighlightDrawables.length;
 for (int i = 0; i < total; i++) {
  HighlightDrawable drawable = mHighlightDrawables[i];
  drawable.highlightView(view);
  view.getOverlay().add(drawable);
 }
}

代码示例来源：origin: robolectric/robolectric

@Implementation
protected boolean getGlobalVisibleRect(Rect rect, Point globalOffset) {
 if (globalVisibleRect == null) {
  return directly().getGlobalVisibleRect(rect, globalOffset);
 }
 if (!globalVisibleRect.isEmpty()) {
  rect.set(globalVisibleRect);
  if (globalOffset != null) {
   rect.offset(-globalOffset.x, -globalOffset.y);
  }
  return true;
 }
 rect.setEmpty();
 return false;
}

代码示例来源：origin: facebook/litho

Math.min(bottom, scrollingParentHeight) - top);
if (rect.isEmpty()) {

代码示例来源：origin: facebook/litho

private void setupPreviousMountableOutputData(LayoutState layoutState, Rect localVisibleRect) {
 if (localVisibleRect.isEmpty()) {
  return;
 }
 final ArrayList<LayoutOutput> layoutOutputTops = layoutState.getMountableOutputTops();
 final ArrayList<LayoutOutput> layoutOutputBottoms = layoutState.getMountableOutputBottoms();
 final int mountableOutputCount = layoutState.getMountableOutputCount();
 mPreviousTopsIndex = layoutState.getMountableOutputCount();
 for (int i = 0; i < mountableOutputCount; i++) {
  if (localVisibleRect.bottom <= layoutOutputTops.get(i).getBounds().top) {
   mPreviousTopsIndex = i;
   break;
  }
 }
 mPreviousBottomsIndex = layoutState.getMountableOutputCount();
 for (int i = 0; i < mountableOutputCount; i++) {
  if (localVisibleRect.top < layoutOutputBottoms.get(i).getBounds().bottom) {
   mPreviousBottomsIndex = i;
   break;
  }
 }
}

代码示例来源：origin: robolectric/robolectric

@Test
public void setsGlobalVisibleRect() {
 Rect globalVisibleRect = new Rect();
 shadowOf(view).setGlobalVisibleRect(new Rect());
 assertThat(view.getGlobalVisibleRect(globalVisibleRect))
   .isFalse();
 assertThat(globalVisibleRect.isEmpty())
   .isTrue();
 assertThat(view.getGlobalVisibleRect(globalVisibleRect, new Point(1, 1)))
   .isFalse();
 assertThat(globalVisibleRect.isEmpty())
   .isTrue();
 shadowOf(view).setGlobalVisibleRect(new Rect(1, 2, 3, 4));
 assertThat(view.getGlobalVisibleRect(globalVisibleRect))
   .isTrue();
 assertThat(globalVisibleRect)
   .isEqualTo(new Rect(1, 2, 3, 4));
 assertThat(view.getGlobalVisibleRect(globalVisibleRect, new Point(1, 1)))
   .isTrue();
 assertThat(globalVisibleRect)
   .isEqualTo(new Rect(0, 1, 2, 3));
}