Example usage for android.text TextUtils ellipsize

List of usage examples for android.text TextUtils ellipsize

  1. HOME
  2. Java
  3. android
  4. android.text.*
  5. TextUtils
  6. ellipsize

Introduction

In this page you can find the example usage for android.text TextUtils ellipsize.

Prototype

public static CharSequence ellipsize(CharSequence text, TextPaint p, float avail, TruncateAt where)

Source Link

Document

Returns the original text if it fits in the specified width given the properties of the specified Paint, or, if it does not fit, a truncated copy with ellipsis character added at the specified edge or center.

Usage

From source file:au.com.zacher.popularmovies.activity.layout.CollapsingTitleLayout.java

private void setInterpolatedTextSize(final float textSize) {
    if (this.mTitle == null) {
        return;/*from  w w  w  .j  a  va 2s  . c o  m*/
    }

    if (isClose(textSize, this.mCollapsedTitleTextSize) || isClose(textSize, this.mExpandedTitleTextSize)
            || this.mTitleToDraw == null) {
        // If the text size is 'close' to being a decimal, then we use this as a sync-point.
        // We disable our manual scaling and set the paint's text size.
        this.mTextPaint.setTextSize(textSize);
        this.mScale = 1f;

        // We also use this as an opportunity to ellipsize the string
        final CharSequence title = TextUtils.ellipsize(this.mTitle, this.mTextPaint,
                this.mTextRight - this.mTextLeft, TextUtils.TruncateAt.END);
        if (title != this.mTitleToDraw) {
            // If the title has changed, turn it into a string
            this.mTitleToDraw = title.toString();
        }

        if (USE_SCALING_TEXTURE && isClose(textSize, this.mExpandedTitleTextSize)) {
            this.ensureExpandedTexture();
        }
        this.mUseTexture = false;
    } else {
        // We're not close to a decimal so use our canvas scaling method
        if (this.mExpandedTitleTexture != null) {
            this.mScale = textSize / this.mExpandedTitleTextSize;
        } else {
            this.mScale = textSize / this.mTextPaint.getTextSize();
        }

        this.mUseTexture = USE_SCALING_TEXTURE;
    }

    ViewCompat.postInvalidateOnAnimation(this);
}

From source file:com.lamcreations.scaffold.common.utils.CollapsingTextHelper.java

private void setInterpolatedTextSize(float textSize) {
    if (this.mText != null) {
        boolean updateDrawText = false;
        float availableWidth;
        float newTextSize;
        if (isClose(textSize, this.mCollapsedTextSize)) {
            availableWidth = (float) this.mCollapsedBounds.width();
            newTextSize = this.mCollapsedTextSize;
            this.mScale = 1.0F;
        } else {/*from  w  w w .  j a v  a  2 s  .  com*/
            availableWidth = (float) this.mExpandedBounds.width();
            newTextSize = this.mExpandedTextSize;
            if (isClose(textSize, this.mExpandedTextSize)) {
                this.mScale = 1.0F;
            } else {
                this.mScale = textSize / this.mExpandedTextSize;
            }
        }

        if (availableWidth > 0.0F) {
            updateDrawText = this.mCurrentTextSize != newTextSize;
            this.mCurrentTextSize = newTextSize;
        }

        if (this.mTextToDraw == null || updateDrawText) {
            this.mTextPaint.setTextSize(this.mCurrentTextSize);
            CharSequence title = TextUtils.ellipsize(this.mText, this.mTextPaint, availableWidth,
                    TextUtils.TruncateAt.END);
            if (this.mTextToDraw == null || !this.mTextToDraw.equals(title)) {
                this.mTextToDraw = title;
            }

            this.mIsRtl = this.calculateIsRtl(this.mTextToDraw);
            this.mTextWidth = this.mTextPaint.measureText(this.mTextToDraw, 0, this.mTextToDraw.length());
        }

        this.mUseTexture = USE_SCALING_TEXTURE && this.mScale != 1.0F;
        if (this.mUseTexture) {
            this.ensureExpandedTexture();
        }

        ViewCompat.postInvalidateOnAnimation(this.mView);
    }
}

From source file:org.wikipedia.page.shareafact.SnippetImage.java

/**
 * If the title or text is too long we first reduce the font size.
 * If that is not enough it gets ellipsized.
 *///  w w  w  .  j a  va  2  s.  com
private static StaticLayout optimizeTextSize(TextLayoutParams params, int maxHeight, int maxLines,
        float maxFontSize, float minFontSize) {
    final float threshold1 = 60.0f;
    final float threshold2 = 40.0f;
    final float extraStep1 = 3.0f;
    final float extraStep2 = 1.0f;
    boolean fits = false;
    StaticLayout textLayout = null;

    // Try decreasing font size first
    for (float fontSize = maxFontSize; fontSize >= minFontSize; fontSize -= 1.0f) {
        params.textPaint.setTextSize(fontSize);
        textLayout = buildLayout(params);
        if (textLayout.getHeight() <= maxHeight) {
            fits = true;
            break;
        }

        // make it go faster at the beginning...
        if (fontSize > threshold1) {
            fontSize -= extraStep1;
        } else if (fontSize > threshold2) {
            fontSize -= extraStep2;
        }
    }

    // Then do own ellipsize: cut text off after last fitting space and add "..."
    // Didn't want to cut off randomly in the middle of a line or word.
    if (!fits) {
        final String textStr = params.text.toString();
        final int ellipsisLength = 3;
        final int ellipsisStart = textLayout != null ? textLayout.getLineStart(maxLines) - ellipsisLength
                : textStr.length();
        final int end = textStr.lastIndexOf(' ', ellipsisStart) + 1;
        if (end > 0) {
            textLayout = buildLayout(new TextLayoutParams(params, textStr.substring(0, end) + "..."));
            if (textLayout.getLineCount() <= maxLines) {
                fits = true;
            }
        }
    }

    // last resort: use TextUtils.ellipsize()
    if (!fits) {
        final float textRatio = .87f;
        final float maxWidth = textRatio * maxLines * params.lineWidth;
        textLayout = buildLayout(new TextLayoutParams(params,
                TextUtils.ellipsize(params.text, params.textPaint, maxWidth, TextUtils.TruncateAt.END)));
    }

    return textLayout;
}

From source file:org.telegram.ui.Cells.ProfileSearchCell.java

public void buildLayout() {
    CharSequence nameString;//from w ww.  jav  a 2  s  .co m
    TextPaint currentNamePaint;

    drawNameBroadcast = false;
    drawNameLock = false;
    drawNameGroup = false;
    drawCheck = false;
    drawNameBot = false;

    if (encryptedChat != null) {
        drawNameLock = true;
        dialog_id = ((long) encryptedChat.id) << 32;
        if (!LocaleController.isRTL) {
            nameLockLeft = AndroidUtilities.dp(AndroidUtilities.leftBaseline);
            nameLeft = AndroidUtilities.dp(AndroidUtilities.leftBaseline + 4)
                    + lockDrawable.getIntrinsicWidth();
        } else {
            nameLockLeft = getMeasuredWidth() - AndroidUtilities.dp(AndroidUtilities.leftBaseline + 2)
                    - lockDrawable.getIntrinsicWidth();
            nameLeft = AndroidUtilities.dp(11);
        }
        nameLockTop = AndroidUtilities.dp(16.5f);
    } else {
        if (chat != null) {
            if (chat.id < 0) {
                dialog_id = AndroidUtilities.makeBroadcastId(chat.id);
                drawNameBroadcast = true;
                nameLockTop = AndroidUtilities.dp(28.5f);
            } else {
                dialog_id = -chat.id;
                if (ChatObject.isChannel(chat) && !chat.megagroup) {
                    drawNameBroadcast = true;
                    nameLockTop = AndroidUtilities.dp(28.5f);
                } else {
                    drawNameGroup = true;
                    nameLockTop = AndroidUtilities.dp(30);
                }
            }
            drawCheck = chat.verified;
            if (!LocaleController.isRTL) {
                nameLockLeft = AndroidUtilities.dp(AndroidUtilities.leftBaseline);
                nameLeft = AndroidUtilities.dp(AndroidUtilities.leftBaseline + 4)
                        + (drawNameGroup ? groupDrawable.getIntrinsicWidth()
                                : broadcastDrawable.getIntrinsicWidth());
            } else {
                nameLockLeft = getMeasuredWidth() - AndroidUtilities.dp(AndroidUtilities.leftBaseline + 2)
                        - (drawNameGroup ? groupDrawable.getIntrinsicWidth()
                                : broadcastDrawable.getIntrinsicWidth());
                nameLeft = AndroidUtilities.dp(11);
            }
        } else {
            dialog_id = user.id;
            if (!LocaleController.isRTL) {
                nameLeft = AndroidUtilities.dp(AndroidUtilities.leftBaseline);
            } else {
                nameLeft = AndroidUtilities.dp(11);
            }
            if (user.bot) {
                drawNameBot = true;
                if (!LocaleController.isRTL) {
                    nameLockLeft = AndroidUtilities.dp(AndroidUtilities.leftBaseline);
                    nameLeft = AndroidUtilities.dp(AndroidUtilities.leftBaseline + 4)
                            + botDrawable.getIntrinsicWidth();
                } else {
                    nameLockLeft = getMeasuredWidth() - AndroidUtilities.dp(AndroidUtilities.leftBaseline + 2)
                            - botDrawable.getIntrinsicWidth();
                    nameLeft = AndroidUtilities.dp(11);
                }
                nameLockTop = AndroidUtilities.dp(16.5f);
            } else {
                nameLockTop = AndroidUtilities.dp(17);
            }
            drawCheck = user.verified;
        }
    }

    if (currentName != null) {
        nameString = currentName;
    } else {
        String nameString2 = "";
        if (chat != null) {
            nameString2 = chat.title;
        } else if (user != null) {
            nameString2 = UserObject.getUserName(user);
        }
        nameString = nameString2.replace('\n', ' ');
    }
    if (nameString.length() == 0) {
        if (user != null && user.phone != null && user.phone.length() != 0) {
            nameString = PhoneFormat.getInstance().format("+" + user.phone);
        } else {
            nameString = LocaleController.getString("HiddenName", R.string.HiddenName);
        }
    }
    if (encryptedChat != null) {
        currentNamePaint = nameEncryptedPaint;
    } else {
        currentNamePaint = namePaint;
    }

    int onlineWidth;
    int nameWidth;
    if (!LocaleController.isRTL) {
        onlineWidth = nameWidth = getMeasuredWidth() - nameLeft - AndroidUtilities.dp(14);
    } else {
        onlineWidth = nameWidth = getMeasuredWidth() - nameLeft
                - AndroidUtilities.dp(AndroidUtilities.leftBaseline);
    }
    if (drawNameLock) {
        nameWidth -= AndroidUtilities.dp(6) + lockDrawable.getIntrinsicWidth();
    } else if (drawNameBroadcast) {
        nameWidth -= AndroidUtilities.dp(6) + broadcastDrawable.getIntrinsicWidth();
    } else if (drawNameGroup) {
        nameWidth -= AndroidUtilities.dp(6) + groupDrawable.getIntrinsicWidth();
    } else if (drawNameBot) {
        nameWidth -= AndroidUtilities.dp(6) + botDrawable.getIntrinsicWidth();
    }

    if (drawCount) {
        TLRPC.TL_dialog dialog = MessagesController.getInstance().dialogs_dict.get(dialog_id);
        if (dialog != null && dialog.unread_count != 0) {
            lastUnreadCount = dialog.unread_count;
            String countString = String.format("%d", dialog.unread_count);
            countWidth = Math.max(AndroidUtilities.dp(12),
                    (int) Math.ceil(countPaint.measureText(countString)));
            countLayout = new StaticLayout(countString, countPaint, countWidth, Layout.Alignment.ALIGN_CENTER,
                    1.0f, 0.0f, false);
            int w = countWidth + AndroidUtilities.dp(18);
            nameWidth -= w;
            if (!LocaleController.isRTL) {
                countLeft = getMeasuredWidth() - countWidth - AndroidUtilities.dp(19);
            } else {
                countLeft = AndroidUtilities.dp(19);
                nameLeft += w;
            }
        } else {
            lastUnreadCount = 0;
            countLayout = null;
        }
    } else {
        lastUnreadCount = 0;
        countLayout = null;
    }

    CharSequence nameStringFinal = TextUtils.ellipsize(nameString, currentNamePaint,
            nameWidth - AndroidUtilities.dp(12), TextUtils.TruncateAt.END);
    nameLayout = new StaticLayout(nameStringFinal, currentNamePaint, nameWidth, Layout.Alignment.ALIGN_NORMAL,
            1.0f, 0.0f, false);

    if (chat == null || subLabel != null) {
        if (!LocaleController.isRTL) {
            onlineLeft = AndroidUtilities.dp(AndroidUtilities.leftBaseline);
        } else {
            onlineLeft = AndroidUtilities.dp(11);
        }

        CharSequence onlineString = "";
        TextPaint currentOnlinePaint = offlinePaint;

        if (subLabel != null) {
            onlineString = subLabel;
        } else if (user != null) {
            if (user.bot) {
                onlineString = LocaleController.getString("Bot", R.string.Bot);
            } else {
                onlineString = LocaleController.formatUserStatus(user);
                if (user != null && (user.id == UserConfig.getClientUserId() || user.status != null
                        && user.status.expires > ConnectionsManager.getInstance().getCurrentTime())) {
                    currentOnlinePaint = onlinePaint;
                    onlineString = LocaleController.getString("Online", R.string.Online);
                }
            }
        }

        CharSequence onlineStringFinal = TextUtils.ellipsize(onlineString, currentOnlinePaint,
                onlineWidth - AndroidUtilities.dp(12), TextUtils.TruncateAt.END);
        onlineLayout = new StaticLayout(onlineStringFinal, currentOnlinePaint, onlineWidth,
                Layout.Alignment.ALIGN_NORMAL, 1.0f, 0.0f, false);
        nameTop = AndroidUtilities.dp(13);
        if (subLabel != null && chat != null) {
            nameLockTop -= AndroidUtilities.dp(12);
        }
    } else {
        onlineLayout = null;
        nameTop = AndroidUtilities.dp(25);
    }

    int avatarLeft;
    if (!LocaleController.isRTL) {
        avatarLeft = AndroidUtilities.dp(AndroidUtilities.isTablet() ? 13 : 9);
    } else {
        avatarLeft = getMeasuredWidth() - AndroidUtilities.dp(AndroidUtilities.isTablet() ? 65 : 61);
    }

    avatarImage.setImageCoords(avatarLeft, AndroidUtilities.dp(10), AndroidUtilities.dp(52),
            AndroidUtilities.dp(52));

    double widthpx;
    float left;
    if (LocaleController.isRTL) {
        if (nameLayout.getLineCount() > 0) {
            left = nameLayout.getLineLeft(0);
            if (left == 0) {
                widthpx = Math.ceil(nameLayout.getLineWidth(0));
                if (widthpx < nameWidth) {
                    nameLeft += (nameWidth - widthpx);
                }
            }
        }
        if (onlineLayout != null && onlineLayout.getLineCount() > 0) {
            left = onlineLayout.getLineLeft(0);
            if (left == 0) {
                widthpx = Math.ceil(onlineLayout.getLineWidth(0));
                if (widthpx < onlineWidth) {
                    onlineLeft += (onlineWidth - widthpx);
                }
            }
        }
    } else {
        if (nameLayout.getLineCount() > 0) {
            left = nameLayout.getLineRight(0);
            if (left == nameWidth) {
                widthpx = Math.ceil(nameLayout.getLineWidth(0));
                if (widthpx < nameWidth) {
                    nameLeft -= (nameWidth - widthpx);
                }
            }
        }
        if (onlineLayout != null && onlineLayout.getLineCount() > 0) {
            left = onlineLayout.getLineRight(0);
            if (left == onlineWidth) {
                widthpx = Math.ceil(onlineLayout.getLineWidth(0));
                if (widthpx < onlineWidth) {
                    onlineLeft -= (onlineWidth - widthpx);
                }
            }
        }
    }
}

From source file:org.cocos2dx.lib.Cocos2dxBitmap.java

private static String getStringWithEllipsis(String originalText, float width, float fontSize) {
    if (TextUtils.isEmpty(originalText)) {
        return "";
    }/*from w  w w.j a v  a2s. com*/

    TextPaint paint = new TextPaint();
    paint.setTypeface(Typeface.DEFAULT);
    paint.setTextSize(fontSize);

    return TextUtils.ellipsize(originalText, paint, width, TextUtils.TruncateAt.valueOf("END")).toString();
}

From source file:xyz.berial.textinputlayout.CollapsingTextHelper.java

private void setInterpolatedTextSize(final float textSize) {
    if (mText == null)
        return;/*  w w  w  . ja v a2s  .c  o m*/

    final float availableWidth;
    final float newTextSize;
    boolean updateDrawText = false;

    if (isClose(textSize, mCollapsedTextSize)) {
        availableWidth = mCollapsedBounds.width();
        newTextSize = mCollapsedTextSize;
        mScale = 1f;
    } else {
        availableWidth = mExpandedBounds.width();
        newTextSize = mExpandedTextSize;

        if (isClose(textSize, mExpandedTextSize)) {
            // If we're close to the expanded text size, snap to it and use a scale of 1
            mScale = 1f;
        } else {
            // Else, we'll scale down from the expanded text size
            mScale = textSize / mExpandedTextSize;
        }
    }

    if (availableWidth > 0) {
        updateDrawText = (mCurrentTextSize != newTextSize) || mBoundsChanged;
        mCurrentTextSize = newTextSize;
        mBoundsChanged = false;
    }

    if (mTextToDraw == null || updateDrawText) {
        mTextPaint.setTextSize(mCurrentTextSize);

        // If we don't currently have text to draw, or the text size has changed, ellipsize...
        final CharSequence title = TextUtils.ellipsize(mText, mTextPaint, availableWidth,
                TextUtils.TruncateAt.END);
        if (mTextToDraw == null || !mTextToDraw.equals(title)) {
            mTextToDraw = title;
        }
        mIsRtl = calculateIsRtl(mTextToDraw);
    }

    // Use our texture if the scale isn't 1.0
    mUseTexture = USE_SCALING_TEXTURE && mScale != 1f;

    if (mUseTexture) {
        // Make sure we have an expanded texture if needed
        ensureExpandedTexture();
    }

    ViewCompat.postInvalidateOnAnimation(mView);
}

From source file:com.silentcircle.contacts.list.ShortcutIntentBuilder.java

/**
 * Generates a phone number shortcut icon. Adds an overlay describing the type of the phone
 * number, and if there is a photo also adds the call action icon.
 *///from w  w w. j  a va  2s .  c o m
private Bitmap generatePhoneNumberIcon(Drawable photo, int phoneType, String phoneLabel, int actionResId) {
    final Resources r = mContext.getResources();
    final float density = r.getDisplayMetrics().density;

    Bitmap phoneIcon = ((BitmapDrawable) r.getDrawableForDensity(actionResId, mIconDensity)).getBitmap();

    Bitmap icon = generateQuickContactIcon(photo);
    Canvas canvas = new Canvas(icon);

    // Copy in the photo
    Paint photoPaint = new Paint();
    photoPaint.setDither(true);
    photoPaint.setFilterBitmap(true);
    Rect dst = new Rect(0, 0, mIconSize, mIconSize);

    // Create an overlay for the phone number type
    CharSequence overlay = Phone.getTypeLabel(r, phoneType, phoneLabel);

    if (overlay != null) {
        TextPaint textPaint = new TextPaint(Paint.ANTI_ALIAS_FLAG | Paint.DEV_KERN_TEXT_FLAG);
        textPaint.setTextSize(r.getDimension(R.dimen.shortcut_overlay_text_size));
        textPaint.setColor(ContextCompat.getColor(mContext, R.color.textColorIconOverlay));
        textPaint.setShadowLayer(4f, 0, 2f,
                ContextCompat.getColor(mContext, R.color.textColorIconOverlayShadow));

        final FontMetricsInt fmi = textPaint.getFontMetricsInt();

        // First fill in a darker background around the text to be drawn
        final Paint workPaint = new Paint();
        workPaint.setColor(mOverlayTextBackgroundColor);
        workPaint.setStyle(Paint.Style.FILL);
        final int textPadding = r.getDimensionPixelOffset(R.dimen.shortcut_overlay_text_background_padding);
        final int textBandHeight = (fmi.descent - fmi.ascent) + textPadding * 2;
        dst.set(0, mIconSize - textBandHeight, mIconSize, mIconSize);
        canvas.drawRect(dst, workPaint);

        overlay = TextUtils.ellipsize(overlay, textPaint, mIconSize, TruncateAt.END);
        final float textWidth = textPaint.measureText(overlay, 0, overlay.length());
        canvas.drawText(overlay, 0, overlay.length(), (mIconSize - textWidth) / 2,
                mIconSize - fmi.descent - textPadding, textPaint);
    }

    // Draw the phone action icon as an overlay
    Rect src = new Rect(0, 0, phoneIcon.getWidth(), phoneIcon.getHeight());
    int iconWidth = icon.getWidth();
    dst.set(iconWidth - ((int) (20 * density)), -1, iconWidth, ((int) (19 * density)));
    canvas.drawBitmap(phoneIcon, src, dst, photoPaint);

    canvas.setBitmap(null);

    return icon;
}

From source file:com.android.contacts.common.list.ShortcutIntentBuilder.java

/**
 * Generates a phone number shortcut icon. Adds an overlay describing the type of the phone
 * number, and if there is a photo also adds the call action icon.
 *//*from  ww  w.  ja va2  s . com*/
private Bitmap generatePhoneNumberIcon(Drawable photo, int phoneType, String phoneLabel, int actionResId) {
    final Resources r = mContext.getResources();
    final float density = r.getDisplayMetrics().density;

    Bitmap phoneIcon = ((BitmapDrawable) r.getDrawableForDensity(actionResId, mIconDensity)).getBitmap();

    Bitmap icon = generateQuickContactIcon(photo);
    Canvas canvas = new Canvas(icon);

    // Copy in the photo
    Paint photoPaint = new Paint();
    photoPaint.setDither(true);
    photoPaint.setFilterBitmap(true);
    Rect dst = new Rect(0, 0, mIconSize, mIconSize);

    // Create an overlay for the phone number type
    CharSequence overlay = Phone.getTypeLabel(r, phoneType, phoneLabel);

    if (overlay != null) {
        TextPaint textPaint = new TextPaint(Paint.ANTI_ALIAS_FLAG | Paint.DEV_KERN_TEXT_FLAG);
        textPaint.setTextSize(r.getDimension(R.dimen.shortcut_overlay_text_size));
        textPaint.setColor(r.getColor(R.color.textColorIconOverlay));
        textPaint.setShadowLayer(4f, 0, 2f, r.getColor(R.color.textColorIconOverlayShadow));

        final FontMetricsInt fmi = textPaint.getFontMetricsInt();

        // First fill in a darker background around the text to be drawn
        final Paint workPaint = new Paint();
        workPaint.setColor(mOverlayTextBackgroundColor);
        workPaint.setStyle(Paint.Style.FILL);
        final int textPadding = r.getDimensionPixelOffset(R.dimen.shortcut_overlay_text_background_padding);
        final int textBandHeight = (fmi.descent - fmi.ascent) + textPadding * 2;
        dst.set(0, mIconSize - textBandHeight, mIconSize, mIconSize);
        canvas.drawRect(dst, workPaint);

        overlay = TextUtils.ellipsize(overlay, textPaint, mIconSize, TruncateAt.END);
        final float textWidth = textPaint.measureText(overlay, 0, overlay.length());
        canvas.drawText(overlay, 0, overlay.length(), (mIconSize - textWidth) / 2,
                mIconSize - fmi.descent - textPadding, textPaint);
    }

    // Draw the phone action icon as an overlay
    Rect src = new Rect(0, 0, phoneIcon.getWidth(), phoneIcon.getHeight());
    int iconWidth = icon.getWidth();
    dst.set(iconWidth - ((int) (20 * density)), -1, iconWidth, ((int) (19 * density)));
    canvas.drawBitmap(phoneIcon, src, dst, photoPaint);

    canvas.setBitmap(null);

    return icon;
}

From source file:com.amitupadhyay.aboutexample.util.CollapsingTextHelper.java

private void setInterpolatedTextSize(final float textSize) {
    if (mText == null)
        return;/*  w  w  w  .java2  s.  c o  m*/
    final float availableWidth;
    final float newTextSize;
    boolean updateDrawText = false;
    if (isClose(textSize, mCollapsedTextSize)) {
        availableWidth = mCollapsedBounds.width();
        newTextSize = mCollapsedTextSize;
        mScale = 1f;
    } else {
        availableWidth = mExpandedBounds.width();
        newTextSize = mExpandedTextSize;
        if (isClose(textSize, mExpandedTextSize)) {
            // If we're close to the expanded text size, snap to it and use a scale of 1
            mScale = 1f;
        } else {
            // Else, we'll scale down from the expanded text size
            mScale = textSize / mExpandedTextSize;
        }
    }
    if (availableWidth > 0) {
        updateDrawText = (mCurrentTextSize != newTextSize) || mBoundsChanged;
        mCurrentTextSize = newTextSize;
        mBoundsChanged = false;
    }
    if (mTextToDraw == null || updateDrawText) {
        mTextPaint.setTextSize(mCurrentTextSize);
        // If we don't currently have text to draw, or the text size has changed, ellipsize...
        final CharSequence title = TextUtils.ellipsize(mText, mTextPaint, availableWidth,
                TextUtils.TruncateAt.END);
        if (mTextToDraw == null || !mTextToDraw.equals(title)) {
            mTextToDraw = title;
        }
        mIsRtl = calculateIsRtl(mTextToDraw);
    }
    // Use our texture if the scale isn't 1.0
    mUseTexture = USE_SCALING_TEXTURE && mScale != 1f;
    if (mUseTexture) {
        // Make sure we have an expanded texture if needed
        ensureExpandedTexture();
    }
    ViewCompat.postInvalidateOnAnimation(mView);
}

From source file:com.android.contacts.ShortcutIntentBuilder.java

/**
 * Generates a phone number shortcut icon. Adds an overlay describing the type of the phone
 * number, and if there is a photo also adds the call action icon.
 *//*from   w ww  . j av a  2  s .c  o  m*/
private Bitmap generatePhoneNumberIcon(Drawable photo, int phoneType, String phoneLabel, int actionResId) {
    final Resources r = mContext.getResources();
    final float density = r.getDisplayMetrics().density;

    final Drawable phoneDrawable = r.getDrawableForDensity(actionResId, mIconDensity);
    // These icons have the same height and width so either is fine for the size.
    final Bitmap phoneIcon = BitmapUtil.drawableToBitmap(phoneDrawable, phoneDrawable.getIntrinsicHeight());

    Bitmap icon = generateQuickContactIcon(photo);
    Canvas canvas = new Canvas(icon);

    // Copy in the photo
    Paint photoPaint = new Paint();
    photoPaint.setDither(true);
    photoPaint.setFilterBitmap(true);
    Rect dst = new Rect(0, 0, mIconSize, mIconSize);

    // Create an overlay for the phone number type if we're pre-O. O created shortcuts have the
    // app badge which overlaps the type overlay.
    CharSequence overlay = Phone.getTypeLabel(r, phoneType, phoneLabel);
    if (!BuildCompat.isAtLeastO() && overlay != null) {
        TextPaint textPaint = new TextPaint(Paint.ANTI_ALIAS_FLAG | Paint.DEV_KERN_TEXT_FLAG);
        textPaint.setTextSize(r.getDimension(R.dimen.shortcut_overlay_text_size));
        textPaint.setColor(r.getColor(R.color.textColorIconOverlay));
        textPaint.setShadowLayer(4f, 0, 2f, r.getColor(R.color.textColorIconOverlayShadow));

        final FontMetricsInt fmi = textPaint.getFontMetricsInt();

        // First fill in a darker background around the text to be drawn
        final Paint workPaint = new Paint();
        workPaint.setColor(mOverlayTextBackgroundColor);
        workPaint.setStyle(Paint.Style.FILL);
        final int textPadding = r.getDimensionPixelOffset(R.dimen.shortcut_overlay_text_background_padding);
        final int textBandHeight = (fmi.descent - fmi.ascent) + textPadding * 2;
        dst.set(0, mIconSize - textBandHeight, mIconSize, mIconSize);
        canvas.drawRect(dst, workPaint);

        overlay = TextUtils.ellipsize(overlay, textPaint, mIconSize, TruncateAt.END);
        final float textWidth = textPaint.measureText(overlay, 0, overlay.length());
        canvas.drawText(overlay, 0, overlay.length(), (mIconSize - textWidth) / 2,
                mIconSize - fmi.descent - textPadding, textPaint);
    }

    // Draw the phone action icon as an overlay
    int iconWidth = icon.getWidth();
    if (BuildCompat.isAtLeastO()) {
        // On O we need to calculate where the phone icon goes slightly differently. The whole
        // canvas area is 108dp, a centered circle with a diameter of 66dp is the "safe zone".
        // So we start the drawing the phone icon at
        // 108dp - 21 dp (distance from right edge of safe zone to the edge of the canvas)
        // - 24 dp (size of the phone icon) on the x axis (left)
        // The y axis is simply 21dp for the distance to the safe zone (top).
        // See go/o-icons-eng for more details and a handy picture.
        final int left = (int) (mIconSize - (45 * density));
        final int top = (int) (21 * density);
        canvas.drawBitmap(phoneIcon, left, top, photoPaint);
    } else {
        dst.set(iconWidth - ((int) (20 * density)), -1, iconWidth, ((int) (19 * density)));
        canvas.drawBitmap(phoneIcon, null, dst, photoPaint);
    }

    canvas.setBitmap(null);
    return icon;
}