ساخت برنامه نقاشی با اسکچور

پاک کردن صفحه mCanvas.drawColor(Color.TRANSPARENT, PorterDuff.Mode.CLEAR); مداد dv = new DrawingView(this); linear1.addView(dv); mPaint = new Paint(); mPaint.setAntiAlias(true); mPaint.setDither(true); mPaint.setColor(Color.BLACK); mPaint.setStyle(Paint.Style.STROKE); mPaint.setStrokeJoin(Paint.Join.ROUND); mPaint.setStrokeCap(Paint.Cap.ROUND); mPaint.setStrokeWidth(12); } DrawingView dv; private Paint mPaint; private Canvas mCanvas; public class DrawingView extends View { public int width; public int height; private Bitmap mBitmap; private Path mPath; private Paint mBitmapPaint; Context context; private Paint circlePaint; private Path circlePath; public DrawingView(Context c) { super(c); context=c; mPath = new Path(); mBitmapPaint = new Paint(Paint.DITHER_FLAG); circlePaint = new Paint(); circlePath = new Path(); circlePaint.setAntiAlias(true); circlePaint.setColor(Color.BLUE); circlePaint.setStyle(Paint.Style.STROKE); circlePaint.setStrokeJoin(Paint.Join.MITER); circlePaint.setStrokeWidth(4f); } @Override protected void onSizeChanged(int w, int h, int oldw, int oldh) { super.onSizeChanged(w, h, oldw, oldh); mBitmap = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888); mCanvas = new Canvas(mBitmap); } @Override protected void onDraw(Canvas canvas) { super.onDraw(canvas); canvas.drawBitmap( mBitmap, 0, 0, mBitmapPaint); canvas.drawPath( mPath, mPaint); canvas.drawPath( circlePath, circlePaint); invalidate(); } private float mX, mY; private static final float TOUCH_TOLERANCE = 4; private void touch_start(float x, float y) { mPath.reset(); mPath.moveTo(x, y); mX = x; mY = y; } private void touch_move(float x, float y) { float dx = Math.abs(x - mX); float dy = Math.abs(y - mY); if (dx >= TOUCH_TOLERANCE || dy >= TOUCH_TOLERANCE) { mPath.quadTo(mX, mY, (x + mX)/2, (y + mY)/2); mX = x; mY = y; circlePath.reset(); circlePath.addCircle(mX, mY, 30, Path.Direction.CW); } } private void touch_up() { mPath.lineTo(mX, mY); circlePath.reset(); mCanvas.drawPath(mPath, mPaint); mPath.reset(); } @Override public boolean onTouchEvent(MotionEvent event) { float x = event.getX(); float y = event.getY(); switch (event.getAction()) { case MotionEvent.ACTION_DOWN: touch_start(x, y); invalidate(); break; case MotionEvent.ACTION_MOVE: touch_move(x, y); invalidate(); break; case MotionEvent.ACTION_UP: touch_up(); invalidate(); break; } return true; } //To share add this code above code } private void storeImage(Bitmap image) { java.io.File pictureFile = new java.io.File(getExternalCacheDir() + /image.jpg); if (pictureFile == null) { Log.d(MainActivity, Error creating media file, check storage permissions: ); return; } try { java.io.FileOutputStream fos = new java.io.FileOutputStream(pictureFile); image.compress(Bitmap.CompressFormat.PNG, 90, fos); fos.close(); } catch (java.io.FileNotFoundException e) { Log.d(MainActivity, File not found: + e.getMessage()); } catch (java.io.IOException e) { Log.d(MainActivity, Error accessing file: + e.getMessage()); } Intent iten = new Intent(android.content.Intent.ACTION_SEND); iten.setType(*/*); iten.putExtra(Intent.EXTRA_STREAM, Uri.fromFile(new java.io.File(getExternalCacheDir() + /image.jpg))); startActivity(Intent.createChooser(iten, Send image)); } private Bitmap getBitmapFromView(View view) { Bitmap returnedBitmap = Bitmap.createBitmap(view.getWidth(), view.getHeight(),Bitmap.Config.ARGB_8888); Canvas canvas = new Canvas(returnedBitmap); android.graphics.drawable.Drawable bgDrawable =view.getBackground(); if (bgDrawable!=null) { bgDrawable.draw(canvas); } else{ canvas.drawColor(Color.WHITE); } view.draw(canvas); return returnedBitmap; //on the button storeImage(getBitmapFromView(linear1)); //To Clear mCanvas.drawColor(Color.TRANSPARENT, PorterDuff.Mode.CLEAR); aydin