package com.example.gitnb.module.custom; import android.annotation.TargetApi; import android.content.Context; import android.graphics.Bitmap; import android.os.Build; import android.renderscript.Allocation; import android.renderscript.Element; import android.renderscript.RSRuntimeException; import android.renderscript.RenderScript; import android.renderscript.ScriptIntrinsicBlur; /** * Copyright (C) 2015 Wasabeef * * 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. */ public class RSBlur { @TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR1) public static Bitmap blur(Context context, Bitmap bitmap, int radius) throws RSRuntimeException { RenderScript rs = null; try { rs = RenderScript.create(context); Allocation input = Allocation.createFromBitmap(rs, bitmap, Allocation.MipmapControl.MIPMAP_NONE, Allocation.USAGE_SCRIPT); Allocation output = Allocation.createTyped(rs, input.getType()); ScriptIntrinsicBlur blur = ScriptIntrinsicBlur.create(rs, Element.U8_4(rs)); blur.setInput(input); blur.setRadius(radius); blur.forEach(output); output.copyTo(bitmap); } finally { if (rs != null) { rs.destroy(); } } return bitmap; } }