File	Doc	Category	Size	Date	Package
Gesture.java	API Doc	Android 5.1 API	10054	Thu Mar 12 22:22:10 GMT 2015	android.gesture

Gesture

• java.lang.Object

Fields Summary
private static final long	GESTURE_ID_BASE
private static final int	BITMAP_RENDERING_WIDTH
private static final boolean	BITMAP_RENDERING_ANTIALIAS
private static final boolean	BITMAP_RENDERING_DITHER
private static final AtomicInteger	sGestureCount
private final android.graphics.RectF	mBoundingBox
private long	mGestureID
private final ArrayList	mStrokes
public static final Parcelable.Creator	CREATOR

Constructors Summary
public Gesture() mGestureID = GESTURE_ID_BASE + sGestureCount.incrementAndGet();

Methods Summary
public void	addStroke(GestureStroke stroke) Adds a stroke to the gesture. param stroke mStrokes.add(stroke); mBoundingBox.union(stroke.boundingBox);
public java.lang.Object	clone() Gesture gesture = new Gesture(); gesture.mBoundingBox.set(mBoundingBox.left, mBoundingBox.top, mBoundingBox.right, mBoundingBox.bottom); final int count = mStrokes.size(); for (int i = 0; i < count; i++) { GestureStroke stroke = mStrokes.get(i); gesture.mStrokes.add((GestureStroke)stroke.clone()); } return gesture;
public int	describeContents() return 0;
static android.gesture.Gesture	deserialize(java.io.DataInputStream in) final Gesture gesture = new Gesture(); // Gesture ID gesture.mGestureID = in.readLong(); // Number of strokes final int count = in.readInt(); for (int i = 0; i < count; i++) { gesture.addStroke(GestureStroke.deserialize(in)); } return gesture;
public android.graphics.RectF	getBoundingBox() return the bounding box of the gesture return mBoundingBox;
public long	getID() return the id of the gesture return mGestureID;
public float	getLength() Calculates the total length of the gesture. When there are multiple strokes in the gesture, this returns the sum of the lengths of all the strokes. return the length of the gesture int len = 0; final ArrayList<GestureStroke> strokes = mStrokes; final int count = strokes.size(); for (int i = 0; i < count; i++) { len += strokes.get(i).length; } return len;
public java.util.ArrayList	getStrokes() return all the strokes of the gesture return mStrokes;
public int	getStrokesCount() return the number of strokes included by this gesture return mStrokes.size();
void	serialize(java.io.DataOutputStream out) final ArrayList<GestureStroke> strokes = mStrokes; final int count = strokes.size(); // Write gesture ID out.writeLong(mGestureID); // Write number of strokes out.writeInt(count); for (int i = 0; i < count; i++) { strokes.get(i).serialize(out); }
void	setID(long id) Sets the id of the gesture. param id mGestureID = id;
public android.graphics.Bitmap	toBitmap(int width, int height, int edge, int numSample, int color) Creates a bitmap of the gesture with a transparent background. param width width of the target bitmap param height height of the target bitmap param edge the edge param numSample param color return the bitmap final Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); final Canvas canvas = new Canvas(bitmap); canvas.translate(edge, edge); final Paint paint = new Paint(); paint.setAntiAlias(BITMAP_RENDERING_ANTIALIAS); paint.setDither(BITMAP_RENDERING_DITHER); paint.setColor(color); paint.setStyle(Paint.Style.STROKE); paint.setStrokeJoin(Paint.Join.ROUND); paint.setStrokeCap(Paint.Cap.ROUND); paint.setStrokeWidth(BITMAP_RENDERING_WIDTH); final ArrayList<GestureStroke> strokes = mStrokes; final int count = strokes.size(); for (int i = 0; i < count; i++) { Path path = strokes.get(i).toPath(width - 2 * edge, height - 2 * edge, numSample); canvas.drawPath(path, paint); } return bitmap;
public android.graphics.Bitmap	toBitmap(int width, int height, int inset, int color) Creates a bitmap of the gesture with a transparent background. param width param height param inset param color return the bitmap final Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); final Canvas canvas = new Canvas(bitmap); final Paint paint = new Paint(); paint.setAntiAlias(BITMAP_RENDERING_ANTIALIAS); paint.setDither(BITMAP_RENDERING_DITHER); paint.setColor(color); paint.setStyle(Paint.Style.STROKE); paint.setStrokeJoin(Paint.Join.ROUND); paint.setStrokeCap(Paint.Cap.ROUND); paint.setStrokeWidth(BITMAP_RENDERING_WIDTH); final Path path = toPath(); final RectF bounds = new RectF(); path.computeBounds(bounds, true); final float sx = (width - 2 * inset) / bounds.width(); final float sy = (height - 2 * inset) / bounds.height(); final float scale = sx > sy ? sy : sx; paint.setStrokeWidth(2.0f / scale); path.offset(-bounds.left + (width - bounds.width() * scale) / 2.0f, -bounds.top + (height - bounds.height() * scale) / 2.0f); canvas.translate(inset, inset); canvas.scale(scale, scale); canvas.drawPath(path, paint); return bitmap;
public android.graphics.Path	toPath(int width, int height, int edge, int numSample) return toPath(null, width, height, edge, numSample);
public android.graphics.Path	toPath(android.graphics.Path path, int width, int height, int edge, int numSample) if (path == null) path = new Path(); final ArrayList<GestureStroke> strokes = mStrokes; final int count = strokes.size(); for (int i = 0; i < count; i++) { path.addPath(strokes.get(i).toPath(width - 2 * edge, height - 2 * edge, numSample)); } return path;
public android.graphics.Path	toPath() return toPath(null);
public android.graphics.Path	toPath(android.graphics.Path path) if (path == null) path = new Path(); final ArrayList<GestureStroke> strokes = mStrokes; final int count = strokes.size(); for (int i = 0; i < count; i++) { path.addPath(strokes.get(i).getPath()); } return path;
public void	writeToParcel(android.os.Parcel out, int flags) out.writeLong(mGestureID); boolean result = false; final ByteArrayOutputStream byteStream = new ByteArrayOutputStream(GestureConstants.IO_BUFFER_SIZE); final DataOutputStream outStream = new DataOutputStream(byteStream); try { serialize(outStream); result = true; } catch (IOException e) { Log.e(GestureConstants.LOG_TAG, "Error writing Gesture to parcel:", e); } finally { GestureUtils.closeStream(outStream); GestureUtils.closeStream(byteStream); } if (result) { out.writeByteArray(byteStream.toByteArray()); }