Java StaticLayout.getLineLeft方法代码示例

import android.text.StaticLayout; //导入方法依赖的package包/类
public static StaticLayout generateStaticLayout(CharSequence text, TextPaint paint, int maxWidth, int smallWidth, int linesCount, int maxLines) {
    SpannableStringBuilder stringBuilder = new SpannableStringBuilder(text);
    int addedChars = 0;
    StaticLayout layout = new StaticLayout(text, paint, smallWidth, Layout.Alignment.ALIGN_NORMAL, 1.0f, 0.0f, false);
    for (int a = 0; a < linesCount; a++) {
        Layout.Directions directions = layout.getLineDirections(a);
        if (layout.getLineLeft(a) != 0 || layout.isRtlCharAt(layout.getLineStart(a)) || layout.isRtlCharAt(layout.getLineEnd(a))) {
            maxWidth = smallWidth;
        }
        int pos = layout.getLineEnd(a);
        if (pos == text.length()) {
            break;
        }
        pos--;
        if (stringBuilder.charAt(pos + addedChars) == ' ') {
            stringBuilder.replace(pos + addedChars, pos + addedChars + 1, "\n");
        } else if (stringBuilder.charAt(pos + addedChars) != '\n') {
            stringBuilder.insert(pos + addedChars, "\n");
            addedChars++;
        }
        if (a == layout.getLineCount() - 1 || a == maxLines - 1) {
            break;
        }
    }
    return StaticLayoutEx.createStaticLayout(stringBuilder, paint, maxWidth, Layout.Alignment.ALIGN_NORMAL, 1.0f, dp(1), false, TextUtils.TruncateAt.END, maxWidth, maxLines);
}
 

import android.text.StaticLayout; //导入方法依赖的package包/类
public void setTitle(String title) {
    stringBuilder.setLength(0);
    if (title != null && title.length() > 0) {
        stringBuilder.append(title.substring(0, 1));
    }

    if (stringBuilder.length() > 0) {
        String text = stringBuilder.toString().toUpperCase();
        try {
            textLayout = new StaticLayout(text, namePaint, AndroidUtilities.dp(100), Layout.Alignment.ALIGN_NORMAL, 1.0f, 0.0f, false);
            if (textLayout.getLineCount() > 0) {
                textLeft = textLayout.getLineLeft(0);
                textWidth = textLayout.getLineWidth(0);
                textHeight = textLayout.getLineBottom(0);
            }
        } catch (Exception e) {
            FileLog.e("tmessages", e);
        }
    } else {
        textLayout = null;
    }
}
 

import android.text.StaticLayout; //导入方法依赖的package包/类
private void createLayout(int width) {
    if (text != null) {
        try {
            CharSequence string = TextUtils.ellipsize(text, textPaint, width, TextUtils.TruncateAt.END);
            layout = new StaticLayout(string, 0, string.length(), textPaint, width, Layout.Alignment.ALIGN_NORMAL, 1.0f, 0.0f, false);

            /*if (metrics == null) {
                metrics = BoringLayout.isBoring(text, textPaint);
            }
            if (layout == null) {
                layout = BoringLayout.make(text, textPaint, width, Layout.Alignment.ALIGN_NORMAL, 1.0f, 0.0f, metrics, false, TextUtils.TruncateAt.END, width);
            } else {
                layout = ((BoringLayout) layout).replaceOrMake(text, textPaint, width, Layout.Alignment.ALIGN_NORMAL, 1.0f, 0.0f, metrics, false, TextUtils.TruncateAt.END, width);
            }*/

            /*if (spannableStringBuilder == null) {
                spannableStringBuilder = new SpannableStringBuilder(text);
                layout = new DynamicLayout(text, text, textPaint, width, Layout.Alignment.ALIGN_NORMAL, 1.0f, 0.0f, false, TextUtils.TruncateAt.END, width);
            } else {
                spannableStringBuilder.replace(0, text.length(), text);
            }*/

            if (layout.getLineCount() > 0) {
                if ((gravity & Gravity.HORIZONTAL_GRAVITY_MASK) == Gravity.LEFT) {
                    offsetX = -(int) layout.getLineLeft(0);
                } else if (layout.getLineLeft(0) == 0) {
                    offsetX = (int) (width - layout.getLineWidth(0));
                } else {
                    offsetX = 0;
                }
            }
        } catch (Exception e) {
            //ignore
        }
    }
}
 

import android.text.StaticLayout; //导入方法依赖的package包/类
private void drawTextLayout(Canvas canvas) {
  StaticLayout layout = textLayout;
  if (layout == null) {
    // Nothing to draw.
    return;
  }

  int saveCount = canvas.save();
  canvas.translate(textLeft, textTop);

  if (Color.alpha(windowColor) > 0) {
    paint.setColor(windowColor);
    canvas.drawRect(-textPaddingX, 0, layout.getWidth() + textPaddingX, layout.getHeight(),
        paint);
  }

  if (Color.alpha(backgroundColor) > 0) {
    paint.setColor(backgroundColor);
    float previousBottom = layout.getLineTop(0);
    int lineCount = layout.getLineCount();
    for (int i = 0; i < lineCount; i++) {
      lineBounds.left = layout.getLineLeft(i) - textPaddingX;
      lineBounds.right = layout.getLineRight(i) + textPaddingX;
      lineBounds.top = previousBottom;
      lineBounds.bottom = layout.getLineBottom(i);
      previousBottom = lineBounds.bottom;
      canvas.drawRoundRect(lineBounds, cornerRadius, cornerRadius, paint);
    }
  }

  if (edgeType == CaptionStyleCompat.EDGE_TYPE_OUTLINE) {
    textPaint.setStrokeJoin(Join.ROUND);
    textPaint.setStrokeWidth(outlineWidth);
    textPaint.setColor(edgeColor);
    textPaint.setStyle(Style.FILL_AND_STROKE);
    layout.draw(canvas);
  } else if (edgeType == CaptionStyleCompat.EDGE_TYPE_DROP_SHADOW) {
    textPaint.setShadowLayer(shadowRadius, shadowOffset, shadowOffset, edgeColor);
  } else if (edgeType == CaptionStyleCompat.EDGE_TYPE_RAISED
      || edgeType == CaptionStyleCompat.EDGE_TYPE_DEPRESSED) {
    boolean raised = edgeType == CaptionStyleCompat.EDGE_TYPE_RAISED;
    int colorUp = raised ? Color.WHITE : edgeColor;
    int colorDown = raised ? edgeColor : Color.WHITE;
    float offset = shadowRadius / 2f;
    textPaint.setColor(foregroundColor);
    textPaint.setStyle(Style.FILL);
    textPaint.setShadowLayer(shadowRadius, -offset, -offset, colorUp);
    layout.draw(canvas);
    textPaint.setShadowLayer(shadowRadius, offset, offset, colorDown);
  }

  textPaint.setColor(foregroundColor);
  textPaint.setStyle(Style.FILL);
  layout.draw(canvas);
  textPaint.setShadowLayer(0, 0, 0, 0);

  canvas.restoreToCount(saveCount);
}
 

import android.text.StaticLayout; //导入方法依赖的package包/类
public void setInfo(int id, String firstName, String lastName, boolean isBroadcast) {
    if (isProfile) {
        color = arrColorsProfiles[getColorIndex(id)];
    } else {
        color = arrColors[getColorIndex(id)];
    }

    drawBrodcast = isBroadcast;

    if (firstName == null || firstName.length() == 0) {
        firstName = lastName;
        lastName = null;
    }

    stringBuilder.setLength(0);
    if (firstName != null && firstName.length() > 0) {
        stringBuilder.append(firstName.substring(0, 1));
    }
    if (lastName != null && lastName.length() > 0) {
        String lastch = null;
        for (int a = lastName.length() - 1; a >= 0; a--) {
            if (lastch != null && lastName.charAt(a) == ' ') {
                break;
            }
            lastch = lastName.substring(a, a + 1);
        }
        if (Build.VERSION.SDK_INT >= 16) {
            stringBuilder.append("\u200C");
        }
        stringBuilder.append(lastch);
    } else if (firstName != null && firstName.length() > 0) {
        for (int a = firstName.length() - 1; a >= 0; a--) {
            if (firstName.charAt(a) == ' ') {
                if (a != firstName.length() - 1 && firstName.charAt(a + 1) != ' ') {
                    if (Build.VERSION.SDK_INT >= 16) {
                        stringBuilder.append("\u200C");
                    }
                    stringBuilder.append(firstName.substring(a + 1, a + 2));
                    break;
                }
            }
        }
    }

    if (stringBuilder.length() > 0) {
        String text = stringBuilder.toString().toUpperCase();
        try {
            textLayout = new StaticLayout(text, (smallStyle ? namePaintSmall : namePaint), AndroidUtilities.dp(100), Layout.Alignment.ALIGN_NORMAL, 1.0f, 0.0f, false);
            if (textLayout.getLineCount() > 0) {
                textLeft = textLayout.getLineLeft(0);
                textWidth = textLayout.getLineWidth(0);
                textHeight = textLayout.getLineBottom(0);
            }
        } catch (Exception e) {
            FileLog.e("tmessages", e);
        }
    } else {
        textLayout = null;
    }
}
 

import android.text.StaticLayout; //导入方法依赖的package包/类
public static StaticLayout createStaticLayout(CharSequence source, int bufstart, int bufend, TextPaint paint, int outerWidth, Layout.Alignment align, float spacingMult, float spacingAdd, boolean includePad, TextUtils.TruncateAt ellipsize, int ellipsisWidth, int maxLines) {
    /*if (Build.VERSION.SDK_INT >= 14) {
        init();
        try {
            sConstructorArgs[0] = source;
            sConstructorArgs[1] = bufstart;
            sConstructorArgs[2] = bufend;
            sConstructorArgs[3] = paint;
            sConstructorArgs[4] = outerWidth;
            sConstructorArgs[5] = align;
            sConstructorArgs[6] = sTextDirection;
            sConstructorArgs[7] = spacingMult;
            sConstructorArgs[8] = spacingAdd;
            sConstructorArgs[9] = includePad;
            sConstructorArgs[10] = ellipsize;
            sConstructorArgs[11] = ellipsisWidth;
            sConstructorArgs[12] = maxLines;
            return sConstructor.newInstance(sConstructorArgs);
        } catch (Exception e) {
            FileLog.e("tmessages", e);
        }
    }*/
    try {
        if (maxLines == 1) {
            CharSequence text = TextUtils.ellipsize(source, paint, ellipsisWidth, TextUtils.TruncateAt.END);
            return new StaticLayout(text, 0, text.length(), paint, outerWidth, align, spacingMult, spacingAdd, includePad);
        } else {
            StaticLayout layout = new StaticLayout(source, paint, outerWidth, align, spacingMult, spacingAdd, includePad);
            if (layout.getLineCount() <= maxLines) {
                return layout;
            } else {
                int off;
                float left = layout.getLineLeft(maxLines - 1);
                if (left != 0) {
                    off = layout.getOffsetForHorizontal(maxLines - 1, left);
                } else {
                    off = layout.getOffsetForHorizontal(maxLines - 1, layout.getLineWidth(maxLines - 1));
                }
                SpannableStringBuilder stringBuilder = new SpannableStringBuilder(source.subSequence(0, Math.max(0, off - 1)));
                stringBuilder.append("\u2026");
                return new StaticLayout(stringBuilder, paint, outerWidth, align, spacingMult, spacingAdd, includePad);
            }
        }
    } catch (Exception e) {
        FileLog.e("tmessages", e);
    }
    return null;
}