/**
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* Copyright (C) 2017 Baidu Inc. All rights reserved.
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*/
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package com.example.datalibrary.view;
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import android.content.Context;
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import android.graphics.Bitmap;
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import android.graphics.BitmapFactory;
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import android.graphics.Canvas;
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import android.graphics.Color;
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import android.graphics.Paint;
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import android.graphics.PorterDuff;
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import android.graphics.PorterDuffXfermode;
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import android.graphics.Rect;
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import android.graphics.RectF;
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import android.text.TextUtils;
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import android.util.AttributeSet;
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import android.view.View;
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import com.example.datalibrary.utils.DensityUtils;
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/**
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* 人脸检测区域View
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*/
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public class FaceRoundProView extends View {
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/*圆相当于占短边的3/5*/
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public static final float WIDTH_SPACE_RATIO = 0.3f;
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public static final float HEIGHT_RATIO = 0.1f;
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public static final int COLOR_BG = Color.parseColor("#121212");
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private Paint mBGPaint;
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private Paint mFaceRoundPaint;
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private Paint mBitmapPaint;
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private Paint mTextPaint;
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private Paint mProgPaint; // 绘制画笔
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private float mX;
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private float mY;
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private float mR;
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private Bitmap mBitmap;
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private String mTipText;
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private boolean isDrawProgress;
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public FaceRoundProView(Context context, AttributeSet attrs) {
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super(context, attrs);
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setLayerType(View.LAYER_TYPE_SOFTWARE, null);
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mBGPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
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mBGPaint.setColor(COLOR_BG);
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mBGPaint.setStyle(Paint.Style.FILL);
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mBGPaint.setAntiAlias(true);
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mBGPaint.setDither(true);
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mFaceRoundPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
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// mFaceRoundPaint.setColor(COLOR_ROUND);
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mFaceRoundPaint.setStyle(Paint.Style.FILL);
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mFaceRoundPaint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.CLEAR));
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mFaceRoundPaint.setAntiAlias(true);
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mFaceRoundPaint.setDither(true);
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// 初始化进度圆环画笔
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mProgPaint = new Paint();
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mProgPaint.setStyle(Paint.Style.STROKE); // 只描边，不填充
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mProgPaint.setStrokeCap(Paint.Cap.ROUND); // 设置圆角
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mProgPaint.setAntiAlias(true); // 设置抗锯齿
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mProgPaint.setDither(true); // 设置抖动
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mProgPaint.setStrokeWidth(22);
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mProgPaint.setColor(Color.parseColor("#00BAF2"));
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mBitmapPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
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mBitmapPaint.setColor(Color.RED);
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mBitmapPaint.setStrokeWidth(3);
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mBitmapPaint.setAntiAlias(true);
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mBitmapPaint.setDither(true);
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mTextPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
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mTextPaint.setColor(Color.WHITE);
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mTextPaint.setTextSize(DensityUtils.dip2px(getContext(), 22));
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mTextPaint.setTextAlign(Paint.Align.CENTER);
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mTextPaint.setAntiAlias(true);
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mTextPaint.setDither(true);
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}
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public float getRound() {
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return mR;
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}
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public void setBitmapSource(int source , boolean isDrawProgress) {
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mBitmap = BitmapFactory.decodeResource(getResources(), source);
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this.isDrawProgress = isDrawProgress;
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invalidate();
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}
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public void setTipText(String tipText) {
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mTipText = tipText;
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if (!TextUtils.isEmpty(tipText)) {
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invalidate();
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}
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}
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@Override
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protected void onLayout(boolean changed, int left, int top, int right, int bottom) {
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float canvasWidth = right - left;
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float canvasHeight = bottom - top;
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if (canvasWidth >= canvasHeight) {
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// 横屏显示器
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float x = canvasWidth / 2;
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float y = (canvasHeight / 2) - ((canvasHeight / 2) * HEIGHT_RATIO);
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float r = canvasHeight * WIDTH_SPACE_RATIO;
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mX = x;
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mY = y;
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mR = r;
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} else {
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// 竖屏显示器
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float x = canvasWidth / 2;
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float y = canvasHeight / 2;
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float r = canvasWidth / 3;
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mX = x;
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mY = y;
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mR = r;
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}
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}
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@Override
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public void onDraw(Canvas canvas) {
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super.onDraw(canvas);
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// 遮罩
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canvas.drawColor(Color.TRANSPARENT);
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canvas.drawPaint(mBGPaint);
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canvas.drawCircle(mX, mY, mR, mFaceRoundPaint);
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// 画图片
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if (mBitmap != null) {
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Rect src = new Rect(0, 0, mBitmap.getWidth(), mBitmap.getHeight()); // 原图片
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Rect dst = new Rect((int) (mX - mR - 30), (int) (mY - mR - 30),
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(int) (mX + mR + 30), (int) (mY + mR + 30)); // 目标图片
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canvas.drawBitmap(mBitmap, src, dst, mBitmapPaint);
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}
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// 画文字
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if (!TextUtils.isEmpty(mTipText)) {
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float instance = getBottom() - getTop() - mY;
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if (516 > instance) { // 516为效果图尺寸间距，33为字体高度的一半
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canvas.drawText(mTipText, mX, mY + instance - 33, mTextPaint);
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} else {
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canvas.drawText(mTipText, mX, mY + 516, mTextPaint);
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}
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}
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if (isDrawProgress){
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RectF mRectF = new RectF((int) (mX - mR - 25), (int) (mY - mR - 25),
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(int) (mX + mR + 25), (int) (mY + mR + 25));
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canvas.drawArc(mRectF, 275, 360 * 75 / 100,
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false, mProgPaint);
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}
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}
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private static int dip2px(Context context, float dpValue) {
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final float scale = context.getResources().getDisplayMetrics().density;
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return (int) (dpValue * scale + 0.5f);
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}
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}
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