package com.hdl.sdk.sourceos.qrcode;
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import android.content.Context;
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import android.graphics.Bitmap;
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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.util.AttributeSet;
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import android.view.View;
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import androidx.annotation.Nullable;
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import androidx.annotation.Px;
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import java.util.concurrent.atomic.AtomicBoolean;
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/**
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* Created by Tong on 2021/12/2.
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* 二维码View
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*/
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public class QrCodeView extends View {
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private static final int DEF_MARGIN = 0;
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private int mWidth;
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private int mHeight;
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private String mContent;
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private int mMargin = DEF_MARGIN;
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private Bitmap drawBitmap;
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private Canvas drawCanvas;
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private Paint paint;
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private final AtomicBoolean isDraw = new AtomicBoolean(false);
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private DrawThread mDrawThread;
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public QrCodeView(Context context) {
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this(context, null);
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}
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public QrCodeView(Context context, @Nullable AttributeSet attrs) {
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this(context, attrs, 0);
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}
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public QrCodeView(Context context, @Nullable AttributeSet attrs, int defStyleAttr) {
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super(context, attrs, defStyleAttr);
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init();
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}
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@Override
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protected void onDraw(Canvas canvas) {
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super.onDraw(canvas);
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if (drawBitmap != null) {
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canvas.drawBitmap(drawBitmap, getPaddingLeft(), getPaddingTop(), paint);
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}
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}
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@Override
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protected void onSizeChanged(int w, int h, int oldw, int oldh) {
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super.onSizeChanged(w, h, oldw, oldh);
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mHeight = h - getPaddingTop() - getPaddingBottom();
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mWidth = w - getPaddingStart() - getPaddingEnd();
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if (drawBitmap == null || (drawBitmap.isRecycled() || drawBitmap.getWidth() != mWidth || drawBitmap.getHeight() != mHeight)) {
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drawBitmap = Bitmap.createBitmap(mWidth, mHeight, Bitmap.Config.ARGB_8888);
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drawCanvas = new Canvas(drawBitmap);
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startDraw();
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}
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}
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public void setContent(String content) {
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setContent(content, DEF_MARGIN);
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}
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public void setContent(String content, @Px int margin) {
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this.mContent = content;
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startDraw();
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this.mMargin = margin;
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}
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public String getContent() {
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return mContent;
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}
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public void startDraw() {
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if (mContent == null || isDraw.get()) return;
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isDraw.set(true);
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mDrawThread = new DrawThread();
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mDrawThread.start();
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}
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private void init() {
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paint = new Paint(Paint.ANTI_ALIAS_FLAG);
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}
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private class DrawThread extends Thread {
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@Override
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public void run() {
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while (isDraw.get())
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try {
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if (drawCanvas != null) {
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drawCanvas.drawColor(Color.TRANSPARENT, PorterDuff.Mode.CLEAR);
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int size = Math.min(mHeight, mWidth);
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QRCodeUtils.createQRCode(drawBitmap, mContent, size, size, mMargin);
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postInvalidate();
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isDraw.set(false);
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}
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} catch (Exception e) {
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e.printStackTrace();
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} finally {
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if (isDraw.get()) {
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try {
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Thread.sleep(200L);
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} catch (Exception ignore) {
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}
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}
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}
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}
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}
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@Override
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protected void onDetachedFromWindow() {
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super.onDetachedFromWindow();
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if (drawBitmap != null) {
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drawBitmap.recycle();
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}
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isDraw.set(false);
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if (mDrawThread != null) {
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mDrawThread.interrupt();
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}
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}
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}
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