我們知道zxing是一個(gè)強(qiáng)大的處理二維碼和條形碼等的開源庫，本篇文章記錄一下自己在項(xiàng)目中集成zxing開源庫的過程。

導(dǎo)入依賴

implementation ’com.google.zxing:core:3.3.3’

申請(qǐng)權(quán)限

在AndroidManifest中申請(qǐng)相應(yīng)權(quán)限：

<!--相機(jī)--><uses-permission android:name='android.permission.CAMERA' /><!--震動(dòng)--><uses-permission android:name='android.permission.VIBRATE' /><!--存儲(chǔ)--><uses-permission android:name='android.permission.WRITE_EXTERNAL_STORAGE' /><uses-permission android:name='android.permission.READ_EXTERNAL_STORAGE' />

導(dǎo)入相關(guān)代碼和資源文件

導(dǎo)入的代碼文件如下（源碼在末尾）：

相關(guān)的資源文件：

1、在res/values下新建ids.xml文件，引入下面id：

<!--二維碼/條形碼掃描相關(guān)--><item name='auto_focus' type='id' /><item name='decode' type='id' /><item name='decode_failed' type='id' /><item name='decode_succeeded' type='id' /><item name='encode_failed' type='id' /><item name='encode_succeeded' type='id' /><item name='launch_product_query' type='id' /><item name='quit' type='id' /><item name='restart_preview' type='id' /><item name='return_scan_result' type='id' /><item name='search_book_contents_failed' type='id' /><item name='search_book_contents_succeeded' type='id' />

2、在res/values下新建attrs.xml文件，加入掃碼框的屬性，主要是ViewfinderView在使用：

<!--掃碼框?qū)傩?-><declare-styleable name='ViewfinderView'> <attr name='corner_color' format='color' /> <attr name='corner_size' format='dimension' /> <attr name='corner_stroke_width' format='dimension' /> <attr name='corner_position' format='enum'> <enum name='inside' value='1' /> <enum name='outside' value='2' /> </attr> <attr name='line_color' format='color' /> <attr name='line_height' format='dimension' /> <attr name='line_move_distance' format='dimension' /> <attr name='frame_width' format='dimension' /> <attr name='frame_height' format='dimension' /> <attr name='frame_centerX' format='dimension' /> <attr name='frame_centerY' format='dimension' /> <attr name='frame_color' format='color' /> <attr name='frame_stroke_width' format='dimension' /> <attr name='mask_color' format='color' /> <attr name='result_point_color' format='color' /> <attr name='label_text' format='string' /> <attr name='label_text_color' format='color' /> <attr name='label_text_size' format='dimension' /> <attr name='label_text_margin' format='dimension' /></declare-styleable>

3、在res下新建raw目錄，導(dǎo)入beep.mp3，實(shí)現(xiàn)掃碼成功的滴滴音效，BeepManager在使用

上面是一些比較重要的資源。

然后介紹一下幾個(gè)主要的類：

1、ViewfinderView：自定義掃描框，代碼如下，因?yàn)橛凶⑨專筒欢嗾f明了。

public final class ViewfinderView extends View { private static final long ANIMATION_DELAY = 10L; private static final int OPAQUE = 1; private static final int CORNER_INSIDE = 1; //四個(gè)邊角在掃描區(qū)內(nèi) private static final int CORNER_OUTSIDE = 2; //四個(gè)邊角在掃描區(qū)外 private Paint paint; //掃描區(qū)四個(gè)邊角的顏色 private int cornerColor; //掃描區(qū)邊角的大小 private float cornerSize; //掃描區(qū)邊角的寬度 private float cornerStrokeWidth; //邊角的方向，在掃描區(qū)域內(nèi)還是掃描區(qū)域外 private int cornerPosition; //掃描線顏色 private int lineColor; //掃描線高度 private float lineHeight; //掃描線移動(dòng)距離 private float lineMoveDistance; //掃描區(qū)域?qū)挾榷?private float frameWidth; //掃描區(qū)域高度 private float frameHeight; //掃描區(qū)域中心位置的X坐標(biāo)，默認(rèn)正中間，在onLayout中設(shè)置 private float frameCenterX; //掃描區(qū)域中心位置的Y坐標(biāo)，默認(rèn)正中間，在onLayout中設(shè)置 private float frameCenterY; //掃描區(qū)域邊框顏色 private int frameColor; //掃描區(qū)域邊框?qū)挾?private float frameStrokeWidth; //模糊區(qū)域顏色 private int maskColor; //掃描點(diǎn)的顏色 private int resultPointColor; //掃描區(qū)域提示文本 private String labelText; //掃描區(qū)域提示文本顏色 private int labelTextColor; //掃描區(qū)域提示文本字體大小 private float labelTextSize; //掃描區(qū)域提示文本的邊距 private float labelTextMargin; public static int scannerStart = 0; public static int scannerEnd = 0; private Collection<ResultPoint> possibleResultPoints; private Collection<ResultPoint> lastPossibleResultPoints; // This constructor is used when the class is built from an XML resource. public ViewfinderView(Context context, AttributeSet attrs) { super(context, attrs); //初始化自定義屬性信息 TypedArray ta = context.obtainStyledAttributes(attrs, R.styleable.ViewfinderView); cornerColor = ta.getColor(R.styleable.ViewfinderView_corner_color, getResources().getColor(R.color.colorPrimary)); cornerSize = ta.getDimension(R.styleable.ViewfinderView_corner_size, dp2px(context, 28)); cornerStrokeWidth = ta.getDimension(R.styleable.ViewfinderView_corner_stroke_width, dp2px(context, 4)); cornerPosition = ta.getInt(R.styleable.ViewfinderView_corner_position, CORNER_INSIDE); lineColor = ta.getColor(R.styleable.ViewfinderView_line_color, getResources().getColor(R.color.colorPrimary)); lineHeight = ta.getDimension(R.styleable.ViewfinderView_line_height, dp2px(context, 3)); lineMoveDistance = ta.getDimension(R.styleable.ViewfinderView_line_move_distance, dp2px(context, 2)); frameWidth = ta.getDimension(R.styleable.ViewfinderView_frame_width, dp2px(context, 220)); frameHeight = ta.getDimension(R.styleable.ViewfinderView_frame_height, dp2px(context, 220)); frameCenterX = ta.getDimension(R.styleable.ViewfinderView_frame_centerX, -1); frameCenterY = ta.getDimension(R.styleable.ViewfinderView_frame_centerY, -1); frameColor = ta.getColor(R.styleable.ViewfinderView_frame_color, Color.parseColor('#90FFFFFF')); frameStrokeWidth = ta.getDimension(R.styleable.ViewfinderView_frame_stroke_width, dp2px(context, 0.2f)); maskColor = ta.getColor(R.styleable.ViewfinderView_mask_color, Color.parseColor('#60000000')); resultPointColor = ta.getColor(R.styleable.ViewfinderView_result_point_color, Color.TRANSPARENT); labelText = ta.getString(R.styleable.ViewfinderView_label_text); labelTextColor = ta.getColor(R.styleable.ViewfinderView_label_text_color, Color.WHITE); labelTextSize = ta.getDimension(R.styleable.ViewfinderView_label_text_size, sp2px(context, 15)); labelTextMargin = ta.getDimension(R.styleable.ViewfinderView_label_text_margin, dp2px(context, 18)); ta.recycle(); paint = new Paint(); paint.setAntiAlias(true); possibleResultPoints = new HashSet<ResultPoint>(5); } @Override protected void onLayout(boolean changed, int left, int top, int right, int bottom) { super.onLayout(changed, left, top, right, bottom); //如果沒有設(shè)置frameCenterX和frameCenterY默認(rèn)布局正中間的X、Y坐標(biāo) frameCenterX = (frameCenterX == -1) ? getWidth() / 2f : frameCenterX; frameCenterY = (frameCenterY == -1) ? getHeight() / 2f : frameCenterY; //設(shè)置掃描區(qū)域位置 int leftOffset = (int) (frameCenterX - frameWidth / 2f); int topOffset = (int) (frameCenterY - frameHeight / 2f); //設(shè)置掃描區(qū)不超過屏幕 leftOffset = leftOffset > 0 ? leftOffset : 0; topOffset = topOffset > 0 ? topOffset : 0; Rect rect = new Rect(); rect.left = leftOffset; rect.top = topOffset; rect.right = (int) (leftOffset + frameWidth); rect.bottom = (int) (topOffset + frameHeight); CameraManager.get().setFramingRect(rect); } @Override public void onDraw(Canvas canvas) { Rect frame = CameraManager.get().getFramingRect(); if (frame == null) { return; } if (scannerStart == 0 || scannerEnd == 0) { scannerStart = frame.top; scannerEnd = frame.bottom; } int width = canvas.getWidth(); int height = canvas.getHeight(); //繪制模糊區(qū)域 drawExterior(canvas, frame, width, height); //繪制掃描區(qū)邊框 drawFrame(canvas, frame); //繪制邊角 drawCorner(canvas, frame); //繪制提示信息 drawTextInfo(canvas, frame); //繪制掃描線 drawScanLine(canvas, frame); //繪制閃爍點(diǎn) drawResultPoint(canvas, frame); // Request another update at the animation interval, but only repaint the laser line, // not the entire viewfinder mask. //指定重繪區(qū)域，該方法會(huì)在子線程中執(zhí)行 postInvalidateDelayed(ANIMATION_DELAY, frame.left, frame.top, frame.right, frame.bottom); } // 繪制模糊區(qū)域 Draw the exterior (i.e. outside the framing rect) darkened private void drawExterior(Canvas canvas, Rect frame, int width, int height) { paint.setColor(maskColor); canvas.drawRect(0, 0, width, frame.top, paint); canvas.drawRect(0, frame.top, frame.left, frame.bottom, paint); canvas.drawRect(frame.right, frame.top, width, frame.bottom, paint); canvas.drawRect(0, frame.bottom, width, height, paint); } // 繪制掃描區(qū)邊框 Draw a two pixel solid black border inside the framing rect private void drawFrame(Canvas canvas, Rect frame) { if (frameStrokeWidth > 0) { paint.setColor(frameColor); if (cornerPosition == CORNER_INSIDE) { //邊角在掃描區(qū)內(nèi) //左邊 canvas.drawRect(frame.left, frame.top, frame.left + frameStrokeWidth, frame.bottom, paint); //上邊 canvas.drawRect(frame.left, frame.top, frame.right, frame.top + frameStrokeWidth, paint); //右邊 canvas.drawRect(frame.right - frameStrokeWidth, frame.top, frame.right, frame.bottom, paint); //下邊 canvas.drawRect(frame.left, frame.bottom - frameStrokeWidth, frame.right, frame.bottom, paint); } else { //邊角在掃描區(qū)外 //左邊 canvas.drawRect(frame.left - frameStrokeWidth, frame.top - frameStrokeWidth, frame.left, frame.bottom + frameStrokeWidth, paint); //上邊 canvas.drawRect(frame.left - frameStrokeWidth, frame.top - frameStrokeWidth, frame.right + frameStrokeWidth, frame.top, paint); //右邊 canvas.drawRect(frame.right, frame.top - frameStrokeWidth, frame.right + frameStrokeWidth, frame.bottom + frameStrokeWidth, paint); //下邊 canvas.drawRect(frame.left - frameStrokeWidth, frame.bottom, frame.right + frameStrokeWidth, frame.bottom + frameStrokeWidth, paint); } } } //繪制邊角 private void drawCorner(Canvas canvas, Rect frame) { if (cornerSize > 0 && cornerStrokeWidth > 0) { paint.setColor(cornerColor); if (cornerPosition == CORNER_INSIDE) { //繪制在掃描區(qū)域內(nèi)區(qū) //左上 canvas.drawRect(frame.left, frame.top, frame.left + cornerSize, frame.top + cornerStrokeWidth, paint); canvas.drawRect(frame.left, frame.top, frame.left + cornerStrokeWidth, frame.top + cornerSize, paint); //右上 canvas.drawRect(frame.right - cornerSize, frame.top, frame.right, frame.top + cornerStrokeWidth, paint); canvas.drawRect(frame.right - cornerStrokeWidth, frame.top, frame.right, frame.top + cornerSize, paint); //左下 canvas.drawRect(frame.left, frame.bottom - cornerSize, frame.left + cornerStrokeWidth, frame.bottom, paint); canvas.drawRect(frame.left, frame.bottom - cornerStrokeWidth, frame.left + cornerSize, frame.bottom, paint); //右下 canvas.drawRect(frame.right - cornerSize, frame.bottom - cornerStrokeWidth, frame.right, frame.bottom, paint); canvas.drawRect(frame.right - cornerStrokeWidth, frame.bottom - cornerSize, frame.right, frame.bottom, paint); } else { //繪制在掃描區(qū)域外區(qū) //左上 canvas.drawRect(frame.left - cornerStrokeWidth, frame.top - cornerStrokeWidth, frame.left - cornerStrokeWidth + cornerSize, frame.top, paint); canvas.drawRect(frame.left - cornerStrokeWidth, frame.top - cornerStrokeWidth, frame.left, frame.top - cornerStrokeWidth + cornerSize, paint); //右上 canvas.drawRect(frame.right + cornerStrokeWidth - cornerSize, frame.top - cornerStrokeWidth, frame.right + cornerStrokeWidth, frame.top, paint); canvas.drawRect(frame.right, frame.top - cornerStrokeWidth, frame.right + cornerStrokeWidth, frame.top - cornerStrokeWidth + cornerSize, paint); //左下 canvas.drawRect(frame.left - cornerStrokeWidth, frame.bottom, frame.left - cornerStrokeWidth + cornerSize, frame.bottom + cornerStrokeWidth, paint); canvas.drawRect(frame.left - cornerStrokeWidth, frame.bottom + cornerStrokeWidth - cornerSize, frame.left, frame.bottom + cornerStrokeWidth, paint); //右下 canvas.drawRect(frame.right + cornerStrokeWidth - cornerSize, frame.bottom, frame.right + cornerStrokeWidth, frame.bottom + cornerStrokeWidth, paint); canvas.drawRect(frame.right, frame.bottom + cornerStrokeWidth - cornerSize, frame.right + cornerStrokeWidth, frame.bottom + cornerStrokeWidth, paint); } } } //繪制文本 private void drawTextInfo(Canvas canvas, Rect frame) { if (!TextUtils.isEmpty(labelText)) { paint.setColor(labelTextColor); paint.setTextSize(labelTextSize); paint.setTextAlign(Paint.Align.CENTER); Paint.FontMetrics fm = paint.getFontMetrics(); float baseY = frame.bottom + labelTextMargin - fm.ascent; canvas.drawText(labelText, frame.left + frame.width() / 2, baseY, paint); } } //繪制掃描線 private void drawScanLine(Canvas canvas, Rect frame) { if (lineHeight > 0) { paint.setColor(lineColor); RadialGradient radialGradient = new RadialGradient( (float) (frame.left + frame.width() / 2), (float) (scannerStart + lineHeight / 2), 360f, lineColor, shadeColor(lineColor), Shader.TileMode.MIRROR); paint.setShader(radialGradient); if (scannerStart <= scannerEnd) { //橢圓 RectF rectF = new RectF(frame.left + 2 * lineHeight, scannerStart, frame.right - 2 * lineHeight, scannerStart + lineHeight); canvas.drawOval(rectF, paint); scannerStart += lineMoveDistance; } else { scannerStart = frame.top; } paint.setShader(null); } } private void drawResultPoint(Canvas canvas, Rect frame) { if (resultPointColor != Color.TRANSPARENT) { Collection<ResultPoint> currentPossible = possibleResultPoints; Collection<ResultPoint> currentLast = lastPossibleResultPoints; if (currentPossible.isEmpty()) { lastPossibleResultPoints = null; } else { possibleResultPoints = new HashSet<ResultPoint>(5); lastPossibleResultPoints = currentPossible; paint.setAlpha(OPAQUE); paint.setColor(resultPointColor); for (ResultPoint point : currentPossible) { canvas.drawCircle(frame.left + point.getX(), frame.top + point.getY(), 6.0f, paint); } } if (currentLast != null) { paint.setAlpha(OPAQUE / 2); paint.setColor(resultPointColor); for (ResultPoint point : currentLast) { canvas.drawCircle(frame.left + point.getX(), frame.top + point.getY(), 3.0f, paint); } } } } //處理顏色模糊 public int shadeColor(int color) { String hax = Integer.toHexString(color); String result = '20' + hax.substring(2); return Integer.valueOf(result, 16); } public void drawViewfinder() { invalidate(); } public void addPossibleResultPoint(ResultPoint point) { possibleResultPoints.add(point); } private int dp2px(Context context, float dpValue) { float density = context.getApplicationContext().getResources().getDisplayMetrics().density; return (int) (dpValue * density + 0.5f); } private int sp2px(Context context, float spValue) { float scaleDensity = context.getApplicationContext().getResources().getDisplayMetrics().scaledDensity; return (int) (spValue * scaleDensity + 0.5f); }}

2、CaptureActivity：掃碼的Activity基類，代碼如下；

/** * Created by xuzhb on 2019/11/16 * Desc:掃碼的Activity類 * 整個(gè)Activity最重要的兩個(gè)控件是一個(gè)SurfaceView（攝像頭）和一個(gè)ViewfinderView（掃描區(qū)） * 對(duì)于繼承CaptureActivity的Activity子類來說， * 可以選擇在自己的布局中定義和CaptureActivity的布局文件id相同的控件， * 這樣即使它們?cè)趦蓚€(gè)布局中表現(xiàn)不同也能執(zhí)行相同的邏輯，包括其他控件 * 或者選擇重寫getSurfaceView()和getViewfinderView()返回對(duì)應(yīng)的兩個(gè)控件， * 掃碼最終是在handleDecode(Result result, Bitmap bitmap)處理掃描后的結(jié)果 */public class CaptureActivity extends AppCompatActivity implements SurfaceHolder.Callback { private static final String TAG = 'CaptureActivity'; private static final int IMAGE_PICKER = 1999; private BeepManager mBeepManager; private CaptureActivityHandler mHandler; private Vector<BarcodeFormat> mDecodeFormats; private String mCharacterSet; private InactivityTimer mInactivityTimer; private boolean hasSurface = false; private boolean isLightOn = false; //是否打開閃光燈 private boolean isPlayBeep = true; //是否開啟掃描后的滴滴聲 private boolean isVibrate = true; //是否震動(dòng) private String mPhotoPath; //選中的圖片路徑 private TitleBar mTitleBar; private SurfaceView mSurfaceView; private ViewfinderView mViewfinderView; private LinearLayout mLightLl; private ImageView mLightIv; private TextView mLightTv; @Override protected void onCreate(@Nullable Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(getLayoutId()); CameraManager.init(getApplicationContext()); mBeepManager = new BeepManager(this); hasSurface = false; mInactivityTimer = new InactivityTimer(this); handleView(savedInstanceState); initView(); initListener(); } protected int getLayoutId() { return R.layout.activity_capture; } protected void handleView(@Nullable Bundle savedInstanceState) { } private void initView() { mTitleBar = findViewById(R.id.title_bar); mSurfaceView = findViewById(R.id.surfaceView); mViewfinderView = findViewById(R.id.viewfinderView); mLightLl = findViewById(R.id.light_ll); mLightIv = findViewById(R.id.light_iv); mLightTv = findViewById(R.id.light_tv); } protected void initListener() { //因?yàn)槔^承CaptureActivity的Activity子類的布局不一定包含id為title_bar和light_ll的控件， //沒有的話如果子類通過super.initListener()覆寫時(shí)會(huì)因?yàn)檎也坏蕉鴪?bào)異常，所以這里加了一個(gè)判空； //如果子類的布局中包含id相同的控件，則不需要在子類中再重寫相同的邏輯 if (mTitleBar != null) { StatusBarUtil.INSTANCE.darkModeAndPadding(this, mTitleBar, Color.BLACK, 0, false); mTitleBar.setOnLeftClickListener(v -> { finish(); return null; }); mTitleBar.setOnRightClickListener(v -> { openAlbum(); //打開相冊(cè)選取圖片掃描 return null; }); } if (mLightLl != null) { mLightLl.setOnClickListener(v -> switchLight()); //打開或關(guān)閉閃光燈 } } //打開相冊(cè) protected void openAlbum() { Intent intent = new Intent(Intent.ACTION_PICK, null); intent.setDataAndType(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, 'image/*'); startActivityForResult(intent, IMAGE_PICKER); } //開啟/關(guān)閉閃光燈 private void switchLight() { if (CameraManager.get() != null) { if (isLightOn) { mLightTv.setText('輕觸點(diǎn)亮'); CameraManager.get().turnLightOffFlashLight(); } else { mLightTv.setText('輕觸關(guān)閉'); CameraManager.get().turnOnFlashLight(); } isLightOn = !isLightOn; mLightIv.setSelected(isLightOn); } } @Override protected void onResume() { super.onResume(); SurfaceHolder holder = getSurfaceView().getHolder(); if (hasSurface) { initCamera(holder); } else { holder.addCallback(this); holder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); } mDecodeFormats = null; mCharacterSet = null; } @Override protected void onPause() { super.onPause(); if (mHandler != null) { mHandler.quitSynchronously(); mHandler = null; } CameraManager.get().closeDriver(); } @Override protected void onDestroy() { mInactivityTimer.shutdown(); mBeepManager.releaseRing(); super.onDestroy(); } @Override public void surfaceCreated(SurfaceHolder holder) { } @Override public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) { if (!hasSurface) { hasSurface = true; initCamera(holder); } } @Override public void surfaceDestroyed(SurfaceHolder holder) { hasSurface = false; } private void initCamera(SurfaceHolder holder) { try { CameraManager.get().openDriver(holder); } catch (Exception e) { e.printStackTrace(); } if (mHandler == null) { mHandler = new CaptureActivityHandler(this, mDecodeFormats, mCharacterSet); } } //繼承CaptureActivity的Activity類，如果SurfaceView的id和CaptureActivity布局中SurfaceView的id不同 //需要重寫這個(gè)方法，返回自己布局中的SurfaceView public SurfaceView getSurfaceView() { return mSurfaceView; } //繼承CaptureActivity的Activity類，如果ViewfinderView的id和CaptureActivity布局中ViewfinderView的id不同 //需要重寫這個(gè)方法，返回自己布局中的ViewfinderView public ViewfinderView getViewfinderView() { return mViewfinderView; } public Handler getHandler() { return mHandler; } public void drawViewfinder() { getViewfinderView().drawViewfinder(); } //處理掃描后的結(jié)果 public void handleDecode(Result result, Bitmap bitmap) { mInactivityTimer.onActivity(); if (result != null) { String text = result.getText(); Log.i(TAG, '識(shí)別的結(jié)果：' + text); if (!TextUtils.isEmpty(text)) { //識(shí)別成功 playBeepSoundAndVibrate(); returnQRCodeResult(text); } else { showToast('很抱歉，識(shí)別二維碼失敗！'); } } else { showToast('未發(fā)現(xiàn)二維碼！'); } } private void playBeepSoundAndVibrate() { if (isPlayBeep) { mBeepManager.startRing(); //播放掃碼的滴滴聲 } if (isVibrate) { Vibrator vibrator = (Vibrator) getSystemService(Context.VIBRATOR_SERVICE); if (vibrator != null) { vibrator.vibrate(200); //震動(dòng)200毫秒 } } } //返回掃描結(jié)果 private void returnQRCodeResult(String result) { Intent intent = new Intent(); intent.putExtra(QRConstant.SCAN_QRCODE_RESULT, result); setResult(Activity.RESULT_OK, intent); finish(); } private void showToast(CharSequence text) { runOnUiThread(() -> { ToastUtil.INSTANCE.showToast(text, true, false, getApplicationContext()); }); } @Override protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) { super.onActivityResult(requestCode, resultCode, data); if (requestCode == IMAGE_PICKER && resultCode == Activity.RESULT_OK) { if (data != null) { Uri uri = data.getData(); if (uri != null) { Cursor cursor = getContentResolver().query(uri, null, null, null, null); if (cursor != null) { if (cursor.moveToFirst()) { mPhotoPath = cursor.getString(cursor.getColumnIndex(MediaStore.Images.Media.DATA)); } cursor.close(); if (!TextUtils.isEmpty(mPhotoPath)) { //可以加個(gè)提示正在掃描的加載框，如showLoadingDialog('正在掃描...') new Thread(() -> {handleDecode(QRCodeUtil.decodeImage(mPhotoPath), null);//取消加載框，dismissLoadingDialog() }).start(); } else { Log.e(TAG, '未找到圖片'); } } } } } }}

看一下使用的例子

最后，附上整個(gè)項(xiàng)目的github地址，注：項(xiàng)目使用了視圖綁定ViewBinding，所以需要使用AndroidStudio 3.6.x版本。

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