Example usage for android.graphics Canvas drawText

Introduction

In this page you can find the example usage for android.graphics Canvas drawText.

Prototype

public void drawText(@NonNull String text, float x, float y, @NonNull Paint paint) 

Source Link

Document

Draw the text, with origin at (x,y), using the specified paint.

Usage

From source file:es.ondroid.mapclustering.MyClusterOptionsProvider.java

@Override
public ClusterOptions getClusterOptions(List<Marker> markers) {

    int markersCount = markers.size();
    BitmapDescriptor cachedIcon = cache.get(markersCount);
    if (cachedIcon != null) {
        return clusterOptions.icon(cachedIcon);
    }//from w w w.j a v a2s. co m

    Bitmap base;
    int i = 0;
    do {
        base = baseBitmaps[i];
    } while (markersCount >= forCounts[i++]);

    Bitmap bitmap = base.copy(Bitmap.Config.ARGB_8888, true);

    String text = String.valueOf(markersCount);
    paint.getTextBounds(text, 0, text.length(), bounds);
    float x = bitmap.getWidth() / 2.0f;
    float y = (bitmap.getHeight() - bounds.height()) / 2.0f - bounds.top;

    Canvas canvas = new Canvas(bitmap);
    canvas.drawText(text, x, y, paint);

    BitmapDescriptor icon = BitmapDescriptorFactory.fromBitmap(bitmap);
    cache.put(markersCount, icon);

    return clusterOptions.icon(icon);
}

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From source file:com.openvehicles.OVMS.ui.utils.DemoClusterOptionsProvider.java

@Override
public ClusterOptions getClusterOptions(List<Marker> markers) {

    int markersCount = markers.size();
    BitmapDescriptor cachedIcon = cache.get(markersCount);
    if (cachedIcon != null) {
        return clusterOptions.icon(cachedIcon);
    }//  w ww .  jav a2  s  .  co m

    Bitmap base;
    int i = 0;
    do {
        base = baseBitmaps[i];
    } while (markersCount >= forCounts[i++]);

    Bitmap bitmap = base.copy(Config.ARGB_8888, true);

    String text = String.valueOf(markersCount);
    paint.getTextBounds(text, 0, text.length(), bounds);
    float x = bitmap.getWidth() / 2.0f;
    float y = (bitmap.getHeight() - bounds.height()) / 2.0f - bounds.top;

    Canvas canvas = new Canvas(bitmap);
    canvas.drawText(text, x, y, paint);

    BitmapDescriptor icon = BitmapDescriptorFactory.fromBitmap(bitmap);
    cache.put(markersCount, icon);

    return clusterOptions.icon(icon);
}

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From source file:com.openatk.rockapp.MyClusterOptionsProvider.java

@Override
public ClusterOptions getClusterOptions(List<Marker> markers) {
    int markersCount = markers.size();
    BitmapDescriptor cachedIcon = cache.get(markersCount);
    if (cachedIcon != null) {
        return clusterOptions.icon(cachedIcon);
    }//from www.j  a v  a2  s  .  c o m

    Bitmap base;
    int i = 0;
    do {
        base = baseBitmaps[i];
    } while (markersCount >= forCounts[i++]);

    Bitmap bitmap = base.copy(Config.ARGB_8888, true);

    String text = String.valueOf(markersCount);
    paint.getTextBounds(text, 0, text.length(), bounds);
    //float x = bitmap.getWidth() / 2.0f;
    //float y = (bitmap.getHeight() - bounds.height()) / 2.0f - bounds.top;
    float x = bitmap.getWidth() - (bitmap.getWidth() * 0.12f) - (bounds.width() / 2.0f);
    float y = -1.0f * bounds.top + (bitmap.getHeight() * 0.03f);

    Canvas canvas = new Canvas(bitmap);
    canvas.drawText(text, x, y, paint);

    BitmapDescriptor icon = BitmapDescriptorFactory.fromBitmap(bitmap);
    cache.put(markersCount, icon);

    return clusterOptions.icon(icon);
}

---

From source file:com.hereastory.ui.MarkerClusteringOptionsProvider.java

@Override
public ClusterOptions getClusterOptions(List<Marker> markers) {

    int markersCount = markers.size();
    BitmapDescriptor cachedIcon = cache.get(markersCount);
    if (cachedIcon != null) {
        return clusterOptions.icon(cachedIcon);
    }/*from   w w  w  . j  av a 2 s . c o  m*/

    Bitmap base;
    int i = 0;
    do {
        base = baseBitmaps[i];
    } while (markersCount >= forCounts[i++]);

    Bitmap bitmap = base.copy(Config.ARGB_8888, true);

    String text = String.valueOf(markersCount);
    paint.getTextBounds(text, 0, text.length(), bounds);
    paint.setTextSize(40);
    float x = bitmap.getWidth() / 2.0f;
    float y = (bitmap.getHeight() - bounds.height()) / 2.0f - bounds.top;

    Canvas canvas = new Canvas(bitmap);
    canvas.drawText(text, x, y, paint);

    BitmapDescriptor icon = BitmapDescriptorFactory.fromBitmap(bitmap);
    cache.put(markersCount, icon);

    return clusterOptions.icon(icon);
}

---

From source file:com.irccloud.android.data.model.Avatar.java

public static Bitmap generateBitmap(String text, int textColor, int bgColor, boolean isDarkTheme, int size,
        boolean round) {
    Bitmap bitmap = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_8888);
    if (bitmap != null) {
        Canvas c = new Canvas(bitmap);
        Paint p = new Paint(Paint.ANTI_ALIAS_FLAG);
        p.setStyle(Paint.Style.FILL);

        if (isDarkTheme || !round) {
            p.setColor(bgColor);/*from  w w  w.  ja v  a 2 s  . com*/
            if (round)
                c.drawCircle(size / 2, size / 2, size / 2, p);
            else
                c.drawColor(bgColor);
        } else {
            float[] hsv = new float[3];
            Color.colorToHSV(bgColor, hsv);
            hsv[2] *= 0.8f;
            p.setColor(Color.HSVToColor(hsv));
            c.drawCircle(size / 2, size / 2, (size / 2) - 2, p);
            p.setColor(bgColor);
            c.drawCircle(size / 2, (size / 2) - 2, (size / 2) - 2, p);
        }
        TextPaint tp = new TextPaint(Paint.ANTI_ALIAS_FLAG);
        tp.setTextAlign(Paint.Align.CENTER);
        tp.setTypeface(font);
        tp.setTextSize((int) (size * 0.65));
        tp.setColor(textColor);
        if (isDarkTheme || !round) {
            c.drawText(text, size / 2, (size / 2) - ((tp.descent() + tp.ascent()) / 2), tp);
        } else {
            c.drawText(text, size / 2, (size / 2) - 4 - ((tp.descent() + tp.ascent()) / 2), tp);
        }

        return bitmap;
    } else {
        return null;
    }
}

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From source file:net.simno.dmach.ui.view.PanView.java

@Override
protected void onDraw(Canvas canvas) {
    canvas.drawText(RIGHT, originX, originYR, textPaint);
    canvas.drawText(LEFT, originX, originYL, textPaint);

    float panOffset = pan - offset;
    canvas.drawRect(getMinX(), panOffset, getMaxX(), panOffset + rectHeight, shapePaint);
}

---

From source file:com.achillesrasquinha.biblegenerator.ImageGenerator.java

public Bitmap getBitmap(String title, String subtitle, String text) {
    Bitmap bitmap = Bitmap.createBitmap(mImageSize.x, mImageSize.y, Bitmap.Config.ARGB_8888);
    //convert bitmap to card view background color
    bitmap.eraseColor(ContextCompat.getColor(mContext, R.color.cardview_light_background));

    Canvas canvas = new Canvas(bitmap);

    //title//w  ww .  j  a  v  a  2 s  .  c o m
    mTextPaint.setTextSize(mSizeTitle);
    mTextPaint.setColor(mColor1);
    canvas.drawText(title, mX, mYTitle, mTextPaint);

    //subtitle
    mTextPaint.setTextSize(mSizeSubtitle);
    mTextPaint.setColor(mColor2);
    canvas.drawText(subtitle, mX, mYSubtitle, mTextPaint);

    //since text needs to be wrapped, using a StaticLayout
    mTextPaint.setColor(mColor3);
    //text size same as subtitle size
    StaticLayout layout = new StaticLayout(text, mTextPaint, mImageSize.x - 2 * mX,
            Layout.Alignment.ALIGN_NORMAL, 1.0f, mLineSpacing, false);
    //16dp padding as per material design guidelines
    canvas.translate(mX, mYSubtitle + mX);
    layout.draw(canvas);

    return bitmap;
}

---

From source file:de.mrapp.android.util.BitmapUtil.java

/**
 * Creates and returns a bitmap from a specific text. The text is centered.
 *
 * @param context//w ww. ja va2  s  . com
 *         The context, which should be used, as an instance of the class {@link Context}. The
 *         context may not be null
 * @param width
 *         The width of the bitmap, which should be created, in pixels as an {@link Integer}
 *         value
 * @param height
 *         The height of the bitmap, which should be created, in pixels as an {@link Integer}
 *         value
 * @param backgroundColor
 *         The background color of the bitmap, which should be created, as an {@link Integer}
 *         value
 * @param text
 *         The text, the bitmap should be created from, as an instance of the type {@link
 *         CharSequence}. The text may neither be null, nor empty
 * @param textSize
 *         The text size, which should be used, in sp as an {@link Integer} value
 * @param textColor
 *         The text color, which should be used, as an {@link Integer} value The color of the
 *         text
 * @param typeface
 *         The typeface, which should be used, as a value of the enum {@link Typeface} or null,
 *         if the default typeface should be used
 * @return The bitmap, which has been created, as an instance of the class {@link Bitmap}
 */
public static Bitmap textToBitmap(@NonNull final Context context, final int width, final int height,
        @ColorInt final int backgroundColor, @NonNull final CharSequence text, final float textSize,
        @ColorInt final int textColor, @Nullable final Typeface typeface) {
    ensureNotNull(context, "The context may not be null");
    ensureNotNull(text, "The text may not be null");
    ensureNotEmpty(text, "The text may not be empty");
    ensureAtLeast(textSize, 1, "The text size must be at least 1");
    Bitmap bitmap = colorToBitmap(width, height, backgroundColor);
    Canvas canvas = new Canvas(bitmap);
    Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
    paint.setColor(textColor);
    paint.setTextSize(textSize * getDensity(context));
    paint.setTextAlign(Align.CENTER);

    if (typeface != null) {
        paint.setTypeface(typeface);
    }

    int x = bitmap.getWidth() / 2;
    int y = (int) ((bitmap.getHeight() / 2) - ((paint.descent() + paint.ascent()) / 2));
    canvas.drawText(text.toString(), x, y, paint);
    return bitmap;
}

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From source file:net.simno.dmach.ui.view.SettingView.java

@Override
protected void onDraw(Canvas canvas) {
    canvas.drawColor(backgroundColor);//  w w  w. j  ava 2s .  c om
    if (!TextUtils.isEmpty(hText)) {
        canvas.drawText(hText, originX, originY, textPaint);
    }
    if (!TextUtils.isEmpty(vText)) {
        canvas.drawTextOnPath(vText, path, hOffset, vOffset, textPaint);
    }
    canvas.drawCircle(x, y, circleRadius, shapePaint);
}

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From source file:com.android.cts.verifier.managedprovisioning.NfcTestActivity.java

/**
 * Creates a Bitmap image that contains red on white text with a specified margin.
 * @param text Text to be displayed in the image.
 * @return A Bitmap image with the above specification.
 *//*from   ww w  . j a  v  a2s  .  co m*/
private Bitmap createSampleImage(String text) {
    Paint paint = new Paint();
    paint.setStyle(Paint.Style.FILL);
    paint.setTextSize(TEXT_SIZE);
    Rect rect = new Rect();
    paint.getTextBounds(text, 0, text.length(), rect);
    int w = 2 * MARGIN + rect.right - rect.left;
    int h = 2 * MARGIN + rect.bottom - rect.top;
    Bitmap dest = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888);
    Canvas canvas = new Canvas();
    canvas.setBitmap(dest);
    paint.setColor(Color.WHITE);
    canvas.drawPaint(paint);
    paint.setColor(Color.RED);
    canvas.drawText(text, MARGIN - rect.left, MARGIN - rect.top, paint);
    return dest;
}

---

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