| /* |
| * Copyright (C) 2007 The Android Open Source Project |
| * |
| * 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.example.android.apis.graphics; |
| |
| import android.content.Context; |
| import android.graphics.*; |
| import android.graphics.drawable.*; |
| import android.os.Bundle; |
| import android.view.*; |
| |
| public class RoundRects extends GraphicsActivity { |
| |
| @Override |
| protected void onCreate(Bundle savedInstanceState) { |
| super.onCreate(savedInstanceState); |
| setContentView(new SampleView(this)); |
| } |
| |
| private static class SampleView extends View { |
| private Path mPath; |
| private Paint mPaint; |
| private Rect mRect; |
| private GradientDrawable mDrawable; |
| |
| public SampleView(Context context) { |
| super(context); |
| setFocusable(true); |
| |
| mPath = new Path(); |
| mPaint = new Paint(Paint.ANTI_ALIAS_FLAG); |
| mRect = new Rect(0, 0, 120, 120); |
| |
| mDrawable = new GradientDrawable(GradientDrawable.Orientation.TL_BR, |
| new int[] { 0xFFFF0000, 0xFF00FF00, |
| 0xFF0000FF }); |
| mDrawable.setShape(GradientDrawable.RECTANGLE); |
| mDrawable.setGradientRadius((float)(Math.sqrt(2) * 60)); |
| } |
| |
| static void setCornerRadii(GradientDrawable drawable, float r0, |
| float r1, float r2, float r3) { |
| drawable.setCornerRadii(new float[] { r0, r0, r1, r1, |
| r2, r2, r3, r3 }); |
| } |
| |
| @Override protected void onDraw(Canvas canvas) { |
| |
| mDrawable.setBounds(mRect); |
| |
| float r = 16; |
| |
| canvas.save(); |
| canvas.translate(10, 10); |
| mDrawable.setGradientType(GradientDrawable.LINEAR_GRADIENT); |
| setCornerRadii(mDrawable, r, r, 0, 0); |
| mDrawable.draw(canvas); |
| canvas.restore(); |
| |
| canvas.save(); |
| canvas.translate(10 + mRect.width() + 10, 10); |
| mDrawable.setGradientType(GradientDrawable.RADIAL_GRADIENT); |
| setCornerRadii(mDrawable, 0, 0, r, r); |
| mDrawable.draw(canvas); |
| canvas.restore(); |
| |
| canvas.translate(0, mRect.height() + 10); |
| |
| canvas.save(); |
| canvas.translate(10, 10); |
| mDrawable.setGradientType(GradientDrawable.SWEEP_GRADIENT); |
| setCornerRadii(mDrawable, 0, r, r, 0); |
| mDrawable.draw(canvas); |
| canvas.restore(); |
| |
| canvas.save(); |
| canvas.translate(10 + mRect.width() + 10, 10); |
| mDrawable.setGradientType(GradientDrawable.LINEAR_GRADIENT); |
| setCornerRadii(mDrawable, r, 0, 0, r); |
| mDrawable.draw(canvas); |
| canvas.restore(); |
| |
| canvas.translate(0, mRect.height() + 10); |
| |
| canvas.save(); |
| canvas.translate(10, 10); |
| mDrawable.setGradientType(GradientDrawable.RADIAL_GRADIENT); |
| setCornerRadii(mDrawable, r, 0, r, 0); |
| mDrawable.draw(canvas); |
| canvas.restore(); |
| |
| canvas.save(); |
| canvas.translate(10 + mRect.width() + 10, 10); |
| mDrawable.setGradientType(GradientDrawable.SWEEP_GRADIENT); |
| setCornerRadii(mDrawable, 0, r, 0, r); |
| mDrawable.draw(canvas); |
| canvas.restore(); |
| } |
| } |
| } |