Java Paint.FontMetricsInt方法代码示例

import android.graphics.Paint; //导入方法依赖的package包/类
@Override
public void chooseHeight(final CharSequence text, final int start, final int end, final int spanstartv, final int v, final Paint.FontMetricsInt fm) {
    int need = height - (v + fm.descent - fm.ascent - spanstartv);
    if (need > 0) {
        if (mVerticalAlignment == ALIGN_TOP) {
            fm.descent += need;
        } else if (mVerticalAlignment == ALIGN_CENTER) {
            fm.descent += need / 2;
            fm.ascent -= need / 2;
        } else {
            fm.ascent -= need;
        }
    }
    need = height - (v + fm.bottom - fm.top - spanstartv);
    if (need > 0) {
        if (mVerticalAlignment == ALIGN_TOP) {
            fm.top += need;
        } else if (mVerticalAlignment == ALIGN_CENTER) {
            fm.bottom += need / 2;
            fm.top -= need / 2;
        } else {
            fm.top -= need;
        }
    }
}
 

import android.graphics.Paint; //导入方法依赖的package包/类
/**
 * 左上角画梯形
 * @param canvas
 * @param realWaist 腰长
 */
private void drawTopLeftTip(Canvas canvas, float realWaist) {
    path.moveTo(this.realStartDisH, 0);
    path.lineTo(this.realStartDisH + realWaist, 0);
    path.lineTo(0, this.realStartDisH + realWaist);
    path.lineTo(0, this.realStartDisH);
    path.close();
    canvas.drawPath(path, backPaint);
    canvas.save();

    Paint.FontMetricsInt fontMetrics = textPaint.getFontMetricsInt();
    float dis = (waistDis /2  + this.startDisH) /2;
    float disY = dis - (fontMetrics.bottom + fontMetrics.top) / 2f;
    canvas.rotate(-45, dis, dis);
    canvas.drawText(tipContent, dis, disY, textPaint);
    canvas.rotate(45, dis, dis);
    canvas.restore();
}
 

import android.graphics.Paint; //导入方法依赖的package包/类
@Override
    public void onDraw(Canvas canvas) {
//        paint.setColor(Color.WHITE);
//        paint.setAlpha(0xff);
//        canvas.drawRect(0,0,SIZE,SIZE,paint);

        paint.setColor(Color.BLACK);
        paint.setAlpha(0x33);
        canvas.drawCircle(SIZE / 2, SIZE / 2, SIZE / 2, paint);


        paint.setColor(Color.WHITE);
        paint.setAlpha(0xff);
        Paint.FontMetricsInt fontMetrics = paint.getFontMetricsInt();
        int baseline = (SIZE - fontMetrics.bottom - fontMetrics.top) / 2;
        canvas.drawText(count, SIZE / 2, baseline, paint);
    }
 

import android.graphics.Paint; //导入方法依赖的package包/类
@Override
    public int getSize(Paint paint, CharSequence text, int start, int end, Paint.FontMetricsInt fm) {
//        return super.getSize(paint, text, start, end, fm);

        // fm 以 Paint 的 fm 为基准，避免 Span 改变了 fm 导致文字行高变化 -- chant
        Drawable d = getCachedDrawable();
        Rect rect = d.getBounds();

        if (fm != null) {
            Paint.FontMetricsInt pfm = paint.getFontMetricsInt();
            // keep it the same as paint's fm
            fm.ascent = pfm.ascent;
            fm.descent = pfm.descent;
            fm.top = pfm.top;
            fm.bottom = pfm.bottom;
        }

        return rect.right;
    }
 

import android.graphics.Paint; //导入方法依赖的package包/类
@Override
public int getSize(Paint paint, CharSequence text, int start, int end, Paint.FontMetricsInt fm) {
    if (fm == null) {
        fm = new Paint.FontMetricsInt();
    }

    int sz = super.getSize(paint, text, start, end, fm);
    int offset = AndroidUtilities.dp(6);
    int w = (fm.bottom - fm.top) / 2;
    fm.top = -w - offset;
    fm.bottom = w - offset;
    fm.ascent = -w - offset;
    fm.leading = 0;
    fm.descent = w - offset;
    return sz;
}
 

import android.graphics.Paint; //导入方法依赖的package包/类
@Override
public int getSize(Paint paint, CharSequence text, int start, int end, Paint.FontMetricsInt fm) {
    Drawable d = getCachedDrawable();
    Rect rect = d.getBounds();

    if (fm != null) {
        // Centers the text with the ImageSpan
        if (rect.bottom - (fm.descent - fm.ascent) >= 0){
            // Stores the initial descent and computes the margin available
            initialDescent = fm.descent;
            extraSpace = rect.bottom - (fm.descent - fm.ascent);
        }

        fm.descent = extraSpace / 2 + initialDescent;
        fm.bottom = fm.descent;

        fm.ascent = -rect.bottom + fm.descent;
        fm.top = fm.ascent;
    }

    return rect.right;
}
 

import android.graphics.Paint; //导入方法依赖的package包/类
@Override
public int getSize(@NonNull Paint paint, CharSequence text, int start, int end, Paint.FontMetricsInt fm) {
    CharSequence categoryName = getCategoryName(text, start, end);
    if (categoryName == null) {
        return 0;
    }

    float density = context.getResources().getDisplayMetrics().density;

    int iconBackgroundSize = (int) (ICON_BACKGROUND_SIZE * density);
    int textLeadingPadding = (int) (TEXT_LEADING_PADDING * density);
    int textWidth = (int) paint.measureText(categoryName.toString());
    int textTrailingPadding = (int) (TEXT_TRAILING_PADDING * density);
    int whiteSpacePadding = (int) (WHITE_SPACE_PADDING_AT_END * density);

    return iconBackgroundSize + textLeadingPadding + textWidth + textTrailingPadding + whiteSpacePadding;
}
 

import android.graphics.Paint; //导入方法依赖的package包/类
@Override
public int getSize(Paint paint, CharSequence text, int start, int end, Paint.FontMetricsInt fm) {
    if (mAvoidSuperChangeFontMetrics) {
        Drawable d = getDrawable();
        Rect rect = d.getBounds();
        mWidth = rect.right;
    } else {
        mWidth = super.getSize(paint, text, start, end, fm);
    }
    if (mFontWidthMultiple > 0) {
        mWidth = (int) (paint.measureText("子") * mFontWidthMultiple);
    }
    return mWidth;
}
 

import android.graphics.Paint; //导入方法依赖的package包/类
@Override
public int getSize(@NonNull Paint paint, CharSequence text,
                   int start, int end, Paint.FontMetricsInt fm) {
    if (fm != null) {
        paint.getFontMetricsInt(fm);
    }
    int textWidth = (int) Math.ceil(paint.measureText(text, start, end));
    return Math.min(textWidth, mClipRect.width());
}
 

import android.graphics.Paint; //导入方法依赖的package包/类
@Override
public void chooseHeight(CharSequence text, int start, int end, int spanstartv, int v, Paint.FontMetricsInt fm) {
  if(WXEnvironment.isApkDebugable()) {
    WXLogUtils.d("LineHeight", text + " ; start " + start + "; end " + end + "; spanstartv "
            + spanstartv + "; v " + v + "; fm " + fm);
  }
  int halfLeading=(lineHeight-(fm.descent-fm.ascent))/2;
  fm.top-=halfLeading;
  fm.bottom+=halfLeading;
  fm.ascent-=halfLeading;
  fm.descent+=halfLeading;
}
 

import android.graphics.Paint; //导入方法依赖的package包/类
@Override
public int getSize(Paint paint, CharSequence text, int start, int end, Paint.FontMetricsInt fm) {
  if (fm != null) {
    fm.ascent = -Math.round(mHeight);
    fm.descent = 0;

    fm.top = fm.ascent;
    fm.bottom = 0;
  }

  return Math.round(mWidth);
}
 

import android.graphics.Paint; //导入方法依赖的package包/类
private void drawRect(Canvas canvas) {
    canvas.drawRect(mBgRect, mBackgroundPaint);
    mProgressRect.set(getPaddingLeft(), getPaddingTop(), getPaddingLeft() + parseValueToWidth(), getPaddingTop() + mHeight);
    canvas.drawRect(mProgressRect, mPaint);
    if (mText != null && mText.length() > 0) {
        Paint.FontMetricsInt fontMetrics = mTextPaint.getFontMetricsInt();
        float baseline = mBgRect.top + (mBgRect.height() - fontMetrics.bottom + fontMetrics.top) / 2 - fontMetrics.top;
        canvas.drawText(mText, mBgRect.centerX(), baseline, mTextPaint);
    }
}
 

import android.graphics.Paint; //导入方法依赖的package包/类
@Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        View root = inflater.inflate(R.layout.fragment_trakt_login, container, false);

        mErrorFrame = (ViewGroup) root.findViewById(android.support.v17.leanback.R.id.error_frame);
        updateBackground();

//        installTitleView(inflater, mErrorFrame, savedInstanceState);

        mImageView = (ImageView) root.findViewById(android.support.v17.leanback.R.id.image);
        setImageDrawable((getActivity().getResources().getDrawable(R.drawable.logo_trakt)));
        updateImageDrawable();

        mTextView = (TextView) root.findViewById(android.support.v17.leanback.R.id.message);
        updateMessage();

        mButton = (Button) root.findViewById(android.support.v17.leanback.R.id.button);
        updateButton();

        mSiteText = (TextView) root.findViewById(R.id.text_url);
        mCodeText = (TextView) root.findViewById(R.id.text_code);

        Paint.FontMetricsInt metrics = getFontMetricsInt(mTextView);
        int underImageBaselineMargin = container.getResources().getDimensionPixelSize(
                android.support.v17.leanback.R.dimen.lb_error_under_image_baseline_margin);
        setTopMargin(mTextView, underImageBaselineMargin + metrics.ascent);

        int underMessageBaselineMargin = container.getResources().getDimensionPixelSize(
                android.support.v17.leanback.R.dimen.lb_error_under_message_baseline_margin);
        setTopMargin(mButton, underMessageBaselineMargin - metrics.descent);

        return root;
    }
 

import android.graphics.Paint; //导入方法依赖的package包/类
@Override
public int getSize(Paint paint, CharSequence text, int start, int end, Paint.FontMetricsInt fm) {
    if (fm == null) {
        fm = new Paint.FontMetricsInt();
    }

    if (fontMetrics == null) {
        int sz = super.getSize(paint, text, start, end, fm);

        int offset = AndroidUtilities.dp(8);
        int w = AndroidUtilities.dp(10);
        fm.top = -w - offset;
        fm.bottom = w - offset;
        fm.ascent = -w - offset;
        fm.leading = 0;
        fm.descent = w - offset;

        return sz;
    } else {
        if (fm != null) {
            fm.ascent = fontMetrics.ascent;
            fm.descent = fontMetrics.descent;

            fm.top = fontMetrics.top;
            fm.bottom = fontMetrics.bottom;
        }
        if (getDrawable() != null) {
            getDrawable().setBounds(0, 0, size, size);
        }
        return size;
    }
}
 

import android.graphics.Paint; //导入方法依赖的package包/类
public EmojiSpan(EmojiDrawable d, int verticalAlignment, int s, Paint.FontMetricsInt original) {
    super(d, verticalAlignment);
    fontMetrics = original;
    if (original != null) {
        size = Math.abs(fontMetrics.descent) + Math.abs(fontMetrics.ascent);
        if (size == 0) {
            size = AndroidUtilities.dp(20);
        }
    }
}