Java tutorial
/* * Copyright 2014 Niek Haarman * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.daycle.daycleapp.custom.swipelistview.itemmanipulation.dragdrop; import android.graphics.Bitmap; import android.graphics.Canvas; import android.graphics.Color; import android.graphics.Paint; import android.graphics.Rect; import android.support.annotation.NonNull; import android.support.v4.content.ContextCompat; import android.view.View; import com.daycle.daycleapp.R; class BitmapUtils { private BitmapUtils() { } /** * Returns a bitmap showing a screenshot of the view passed in. */ @NonNull static Bitmap getBitmapFromView(@NonNull final View v) { Bitmap bitmap = Bitmap.createBitmap(v.getMeasuredWidth(), v.getMeasuredHeight(), Bitmap.Config.ARGB_8888); Canvas canvas = new Canvas(bitmap); Paint p = new Paint(); p.setColor(ContextCompat.getColor(v.getContext(), R.color.colorAccent)); p.setAlpha(50); //v.setBackgroundColor(ContextCompat.getColor(v.getContext(), android.R.color.transparent)); v.draw(canvas); //canvas.drawCircle((float)(v.getWidth() / 2), (float)(v.getHeight() / 2), 10, p); canvas.drawRect(new Rect(0, 0, v.getWidth(), v.getHeight()), p); return bitmap; } }