android.text.Layout.getLineCount()方法的使用及代码示例

x33g5p2x  于2022-01-23 转载在 其他  
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本文整理了Java中android.text.Layout.getLineCount()方法的一些代码示例，展示了Layout.getLineCount()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。Layout.getLineCount()方法的具体详情如下：
包路径：android.text.Layout
类名称：Layout
方法名：getLineCount

Layout.getLineCount介绍

暂无

代码示例

代码示例来源：origin: stackoverflow.com

Layout l = textview.getLayout();
if (l != null) {
  int lines = l.getLineCount();
  if (lines > 0)
    if (l.getEllipsisCount(lines-1) > 0)
      Log.d(TAG, "Text is ellipsized");
}

代码示例来源：origin: facebook/litho

/**
 * @param layout A prepared text layout object
 * @return The (zero-indexed) line number at which the text in this layout will be ellipsized, or
 *     -1 if no line will be ellipsized.
 */
private static int getEllipsizedLineNumber(Layout layout) {
 for (int i = 0; i < layout.getLineCount(); ++i) {
  if (layout.getEllipsisCount(i) > 0) {
   return i;
  }
 }
 return -1;
}

代码示例来源：origin: stackoverflow.com

Layout layout = textview1.getLayout();
if(layout != null) {
  int lines = layout.getLineCount();
  if(lines > 0) {
    int ellipsisCount = layout.getEllipsisCount(lines-1);
    if ( ellipsisCount > 0) {
      Log.d(TAG, "Text is ellipsized");
    } 
  } 
}

代码示例来源：origin: stackoverflow.com

final int lineCount = layout.getLineCount();
if (lineCount > 0) {
 final int ellipsisCount = layout.getEllipsisCount(lineCount - 1);

代码示例来源：origin: hanks-zyh/HTextView

@Override
  protected void drawFrame(Canvas canvas) {
    Layout layout = mHTextView.getLayout();
    int gapIndex = 0;
    for (int i = 0; i < layout.getLineCount(); i++) {
      int lineStart = layout.getLineStart(i);
      int lineEnd = layout.getLineEnd(i);
      float lineLeft = layout.getLineLeft(i);
      float lineBaseline = layout.getLineBaseline(i);
      String lineText = mText.subSequence(lineStart, lineEnd).toString();
      for (int c = 0; c < lineText.length(); c++) {
        int alpha = alphaList.get(gapIndex);
        mPaint.setAlpha((int) ((255 - alpha) * progress + alpha));
        canvas.drawText(String.valueOf(lineText.charAt(c)), lineLeft, lineBaseline, mPaint);
        lineLeft += gapList.get(gapIndex++);
      }
    }
  }
}

代码示例来源：origin: facebook/litho

private static Layout setupWidthTestTextLayout() {
  final Layout layout = mock(Layout.class);
  final int fullWidth = FULL_TEXT_WIDTH;
  final int minimalWidth = MINIMAL_TEXT_WIDTH;

  when(layout.getLineCount()).thenReturn(2);
  when(layout.getWidth()).thenReturn(fullWidth);
  when(layout.getLineRight(anyInt())).thenReturn((float) minimalWidth);

  return layout;
 }
}

代码示例来源：origin: stackoverflow.com

if (maxLines != -1) {
  Layout layout = createWorkingLayout(workingText);
  if (layout.getLineCount() > maxLines) {
    workingText = fullText.substring(0, layout.getLineEnd(maxLines - 1)).trim();
    while (createWorkingLayout(workingText + ELLIPSIS).getLineCount() > maxLines) {

代码示例来源：origin: facebook/litho

@VisibleForTesting
public static int resolveWidth(
  int widthSpec, Layout layout, boolean minimallyWide, int minimallyWideThreshold) {
 final int fullWidth = SizeSpec.resolveSize(widthSpec, layout.getWidth());
 if (minimallyWide && layout.getLineCount() > 1) {
  final int minimalWidth = SizeSpec.resolveSize(widthSpec, LayoutMeasureUtil.getWidth(layout));
  if (fullWidth - minimalWidth > minimallyWideThreshold) {
   return minimalWidth;
  }
 }
 return fullWidth;
}

代码示例来源：origin: HotBitmapGG/bilibili-android-client

@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
  Layout layout = new StaticLayout(getText(), mTextPaintOutline,
      measureWidth(widthMeasureSpec), Layout.Alignment.ALIGN_CENTER,
      mSpacingMult, mSpacingAdd, mIncludePad);
  int ex = (int) (mBorderSize * 2 + 1);
  setMeasuredDimension(measureWidth(widthMeasureSpec) + ex,
      measureHeight(heightMeasureSpec) * layout.getLineCount() + ex);
}

代码示例来源：origin: nickbutcher/plaid

int currentEndRunLeft = 0;
int currentEndRunTop = 0;
List<Run> runs = new ArrayList<>(endLayout.getLineCount());

代码示例来源：origin: facebook/TextLayoutBuilder

/**
  * Returns the leftmost position of the layout. This is helpful when there's space between the
  * layout's left bound and its content's (lines) leftmost bound, e.g. StaticLayout when the text
  * alignment is not ALIGN_NORMAL.
  */
 public static int getContentLeft(Layout layout) {
  if (layout == null || layout.getLineCount() == 0) {
   return 0;
  }

  int left = Integer.MAX_VALUE;
  for (int i = 0; i < layout.getLineCount(); i++) {
   left = Math.min(left, (int) layout.getLineLeft(i));
  }

  return left;
 }
}

代码示例来源：origin: facebook/litho

final int lineCount = newLayout.getLineCount();
if (lineCount < minLines) {
 final TextPaint paint = newLayout.getPaint();

代码示例来源：origin: stackoverflow.com

ViewTreeObserver vto = textview.getViewTreeObserver();
 vto.addOnGlobalLayoutListener(new OnGlobalLayoutListener() {
   @Override
   public void onGlobalLayout() {
     Layout l = textview.getLayout();
     if ( l != null){
      int lines = l.getLineCount();
      if ( lines > 0)
        if ( l.getEllipsisCount(lines-1) > 0)
         Log.d(TAG, "Text is ellipsized");
     }  
   }
 });

代码示例来源：origin: stackoverflow.com

ViewTreeObserver vto = textview.getViewTreeObserver();
vto.addOnGlobalLayoutListener(new OnGlobalLayoutListener() {
  @Override
  public void onGlobalLayout() {
    Layout l = textview.getLayout();
    if ( l != null){
     int lines = l.getLineCount();
     if ( lines > 0)
       if ( l.getEllipsisCount(lines-1) > 0)
        Log.d(TAG, "Text is ellipsized");
    }  
  }
});

代码示例来源：origin: sjwall/MaterialTapTargetPrompt

/**
 * Calculates the maximum width line in a text layout.
 *
 * @param textLayout The text layout
 * @return The maximum length line
 */
public static float calculateMaxTextWidth(@Nullable final Layout textLayout)
{
  float maxTextWidth = 0f;
  if (textLayout != null)
  {
    for (int i = 0, count = textLayout.getLineCount(); i < count; i++)
    {
      maxTextWidth = Math.max(maxTextWidth, textLayout.getLineWidth(i));
    }
  }
  return maxTextWidth;
}

代码示例来源：origin: facebook/TextLayoutBuilder

/**
 * Returns the width of the layout.
 *
 * @param layout The layout.
 * @return The width of the layout.
 */
public static int getWidth(Layout layout) {
 if (layout == null) {
  return 0;
 }
 // Supplying VERY_WIDE will make layout.getWidth() return a very large value.
 int count = layout.getLineCount();
 int maxWidth = 0;
 for (int i = 0; i < count; i++) {
  maxWidth = Math.max(maxWidth, (int) layout.getLineRight(i));
 }
 return maxWidth;
}

代码示例来源：origin: sjwall/MaterialTapTargetPrompt

@Test
public void testCalculateMaxTextWidth()
{
  Layout layout = mock(Layout.class);
  when(layout.getLineCount()).thenReturn(3);
  when(layout.getLineWidth(0)).thenReturn(10f);
  when(layout.getLineWidth(1)).thenReturn(100f);
  when(layout.getLineWidth(2)).thenReturn(50f);
  assertEquals(100f, PromptUtils.calculateMaxTextWidth(layout), 0);
}

代码示例来源：origin: curtis2/SuperVideoPlayer

@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
 Layout layout = new StaticLayout(getText(), mTextPaintOutline, measureWidth(widthMeasureSpec), Layout.Alignment.ALIGN_CENTER, mSpacingMult, mSpacingAdd, mIncludePad);
 int ex = (int) (mBorderSize * 2 + 1);
 setMeasuredDimension(measureWidth(widthMeasureSpec) + ex, measureHeight(heightMeasureSpec) * layout.getLineCount() + ex);
}

代码示例来源：origin: facebook/TextLayoutBuilder

@Test
public void testSingleLine() {
 mLayout = mBuilder.setText(LONG_TEXT).setSingleLine(true).setWidth(1000).build();
 assertEquals(mLayout.getLineCount(), 1);
}

代码示例来源：origin: facebook/TextLayoutBuilder

@Test
public void testMaxLines() {
 mLayout = mBuilder.setText(LONG_TEXT).setMaxLines(2).setWidth(1000).build();
 assertEquals(mLayout.getLineCount(), 2);
}

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