1、引入
implementation 'com.journeyapps:zxing-android-embedded:3.5.0'2、使用：
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public void initScan() {
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IntentIntegrator integrator =
new IntentIntegrator(
this);
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// 设置要扫描的条码类型，ONE_D_CODE_TYPES：一维码，QR_CODE_TYPES-二维码
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integrator.setDesiredBarcodeFormats(IntentIntegrator.QR_CODE_TYPES);
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integrator.setCaptureActivity(ScanActivity.class); //设置打开摄像头的Activity
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integrator.setPrompt(""); //底部的提示文字，设为""可以置空
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integrator.setCameraId(
0);
//前置或者后置摄像头
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integrator.setBeepEnabled(
true);
//扫描成功的「哔哔」声，默认开启
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integrator.setBarcodeImageEnabled(
true);
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integrator.initiateScan();
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}
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@Override
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protected void onActivityResult(int requestCode, int resultCode, Intent intent) {
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super.onActivityResult(requestCode, resultCode, intent);
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if (requestCode == IntentIntegrator.REQUEST_CODE) {
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IntentResult scanResult = IntentIntegrator.parseActivityResult(requestCode, resultCode, intent);
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if (scanResult !=
null && scanResult.getContents() !=
null) {
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String result = scanResult.getContents();
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LogUtil.d(
"扫码返回: " + result);
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try {
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JSONObject jsonObject =
new JSONObject(result);
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if (jsonObject.has(Constant.USERPOLICEMENID)) {
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//TODO 逻辑
-
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}
else {
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ToastUtil.showShortToast(
"未扫描到有效的信息");
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}
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}
catch (Exception e) {
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ToastUtil.showShortToast(
"未扫描到有效的信息");
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e.printStackTrace();
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}
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}
else {
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ToastUtil.showShortToast(
"未扫描到有效的信息");
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}
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}
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}
3、ScanActivity
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public
class ScanActivity extends BackActivity {
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@BindView(R.id.dbv)
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DecoratedBarcodeView mDbv;
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private CaptureManager captureManager;
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@Override
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protected int getLayoutId() {
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getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
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return R.layout.activity_scan;
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}
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@Override
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protected void init() {
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super.init();
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captureManager =
new CaptureManager(
this, mDbv);
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captureManager.initializeFromIntent(getIntent(), getSavedInstanceState());
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captureManager.decode();
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}
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@Override
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public void onSaveInstanceState(@NotNull Bundle outState, @NotNull PersistableBundle outPersistentState) {
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super.onSaveInstanceState(outState, outPersistentState);
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captureManager.onSaveInstanceState(outState);
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}
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@Override
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public boolean onKeyDown(int keyCode, KeyEvent event) {
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return mDbv.onKeyDown(keyCode, event) ||
super.onKeyDown(keyCode, event);
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}
-
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@Override
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protected void onPause() {
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super.onPause();
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captureManager.onPause();
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}
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@Override
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public void onResume() {
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super.onResume();
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captureManager.onResume();
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}
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@Override
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protected void onDestroy() {
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super.onDestroy();
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captureManager.onDestroy();
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}
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}
4、布局文件
activity_scan
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<?xml version="1.0" encoding="utf-8"?>
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<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
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xmlns:app=
"http://schemas.android.com/apk/res-auto"
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xmlns:tools=
"http://schemas.android.com/tools"
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android:layout_width=
"match_parent"
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android:layout_height=
"match_parent"
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android:orientation=
"vertical"
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tools:context=
".ui.main.alarmassistant.ScanActivity">
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-
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<com.journeyapps.barcodescanner.DecoratedBarcodeView
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android:id=
"@+id/dbv"
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android:layout_width=
"match_parent"
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android:layout_height=
"match_parent"
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android:fitsSystemWindows=
"true"
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app:zxing_framing_rect_height=
"200dp"
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app:zxing_framing_rect_width=
"200dp"
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app:zxing_preview_scaling_strategy=
"fitXY"
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app:zxing_scanner_layout=
"@layout/view_qr"
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app:zxing_use_texture_view=
"true" />
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</LinearLayout>
view_qr
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<?xml version="1.0" encoding="utf-8"?>
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<merge xmlns:android="http://schemas.android.com/apk/res/android"
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xmlns:app=
"http://schemas.android.com/apk/res-auto">
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<com.journeyapps.barcodescanner.BarcodeView
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android:id=
"@+id/zxing_barcode_surface"
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android:layout_width=
"match_parent"
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android:layout_height=
"match_parent"
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app:zxing_framing_rect_height=
"50dp"
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app:zxing_framing_rect_width=
"250dp" />
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<com.x.x.widget.QrView
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android:id=
"@+id/zxing_viewfinder_view"
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android:layout_width=
"match_parent"
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android:layout_height=
"match_parent"
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app:zxing_possible_result_points=
"@color/color_white"
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app:zxing_result_view=
"@color/zxing_custom_result_view"
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app:zxing_viewfinder_laser=
"@color/color_white"
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app:zxing_viewfinder_mask=
"@color/zxing_custom_viewfinder_mask" />
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<TextView
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android:id=
"@+id/zxing_status_view"
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android:layout_width=
"wrap_content"
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android:layout_height=
"wrap_content"
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android:layout_gravity=
"bottom|center_horizontal"
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android:layout_marginBottom=
"30dp"
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android:background=
"@color/zxing_transparent"
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android:text=
"@string/zxing_msg_default_status"
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android:textColor=
"@color/zxing_status_text" />
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<com.x.common.widget.MyActionBar
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android:id=
"@+id/action_bar"
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android:layout_width=
"match_parent"
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android:layout_height=
"wrap_content"
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app:dark_mode=
"true"
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app:title=
"扫一扫" />
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</merge>
5、
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/**
-
* 自定义扫描界面
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*/
-
-
public
class QrView extends ViewfinderView {
-
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public
int laserLinePosition =
0;
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public
float[] position =
new
float[]{
0f,
0.5f,
1f};
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public
int[] colors =
new
int[]{
0x0027B14D,
0xff27B14D,
0x0027B14D};
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public LinearGradient linearGradient;
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private
int ScreenRate;
-
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public QrView(Context context, AttributeSet attrs) {
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super(context, attrs);
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float density = context.getResources().getDisplayMetrics().density;
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ScreenRate = (
int) (
15 * density);
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}
-
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@Override
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public void onDraw(Canvas canvas) {
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int CORNER_WIDTH =
15;
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refreshSizes();
-
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if (framingRect ==
null || previewFramingRect ==
null) {
-
return;
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}
-
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Rect frame = framingRect;
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Rect previewFrame = previewFramingRect;
-
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int width = canvas.getWidth();
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int height = canvas.getHeight();
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//绘制4个角
-
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paint.setColor(getResources().getColor(R.color.color_white));
//定义画笔的颜色
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canvas.drawRect(frame.left, frame.top, frame.left + ScreenRate, frame.top + CORNER_WIDTH, paint);
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canvas.drawRect(frame.left, frame.top, frame.left + CORNER_WIDTH, frame.top + ScreenRate, paint);
-
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canvas.drawRect(frame.right - ScreenRate, frame.top, frame.right, frame.top + CORNER_WIDTH, paint);
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canvas.drawRect(frame.right - CORNER_WIDTH, frame.top, frame.right, frame.top + ScreenRate, paint);
-
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canvas.drawRect(frame.left, frame.bottom - CORNER_WIDTH, frame.left + ScreenRate, frame.bottom, paint);
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canvas.drawRect(frame.left, frame.bottom - ScreenRate, frame.left + CORNER_WIDTH, frame.bottom, paint);
-
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canvas.drawRect(frame.right - ScreenRate, frame.bottom - CORNER_WIDTH, frame.right, frame.bottom, paint);
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canvas.drawRect(frame.right - CORNER_WIDTH, frame.bottom - ScreenRate, frame.right, frame.bottom, paint);
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// 画出外部（即构图矩形之外）变暗
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paint.setColor(resultBitmap !=
null ? resultColor : maskColor);
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canvas.drawRect(
0,
0, width, frame.top, paint);
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canvas.drawRect(
0, frame.top, frame.left, frame.bottom, paint);
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canvas.drawRect(frame.right, frame.top, width, frame.bottom, paint);
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canvas.drawRect(
0, frame.bottom, width, height, paint);
-
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if (resultBitmap !=
null) {
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// Draw the opaque result bitmap over the scanning rectangle
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paint.setAlpha(CURRENT_POINT_OPACITY);
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canvas.drawBitmap(resultBitmap,
null, frame, paint);
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}
else {
-
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laserLinePosition = laserLinePosition +
8;
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if (laserLinePosition >= frame.height()) {
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laserLinePosition =
0;
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}
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linearGradient =
new LinearGradient(frame.left +
1, frame.top + laserLinePosition, frame.right -
1, frame.top +
10 + laserLinePosition, colors, position, Shader.TileMode.CLAMP);
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// Draw a red "laser scanner" line through the middle to show decoding is active
-
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paint.setShader(linearGradient);
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//绘制扫描线
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canvas.drawRect(frame.left +
1, frame.top + laserLinePosition, frame.right -
1, frame.top +
10 + laserLinePosition, paint);
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paint.setShader(
null);
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float scaleX = frame.width() / (
float) previewFrame.width();
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float scaleY = frame.height() / (
float) previewFrame.height();
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List<ResultPoint> currentPossible = possibleResultPoints;
-
List<ResultPoint> currentLast = lastPossibleResultPoints;
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int frameLeft = frame.left;
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int frameTop = frame.top;
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if (currentPossible.isEmpty()) {
-
lastPossibleResultPoints =
null;
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}
else {
-
possibleResultPoints =
new ArrayList<>(
5);
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lastPossibleResultPoints = currentPossible;
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paint.setAlpha(CURRENT_POINT_OPACITY);
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paint.setColor(resultPointColor);
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for (ResultPoint point : currentPossible) {
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canvas.drawCircle(frameLeft + (
int) (point.getX() * scaleX), frameTop + (
int) (point.getY() * scaleY), POINT_SIZE, paint);
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}
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}
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if (currentLast !=
null) {
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paint.setAlpha(CURRENT_POINT_OPACITY /
2);
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paint.setColor(resultPointColor);
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float radius = POINT_SIZE /
2.0f;
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for (ResultPoint point : currentLast) {
-
canvas.drawCircle(frameLeft + (
int) (point.getX() * scaleX), frameTop + (
int) (point.getY() * scaleY), radius, paint);
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}
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}
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postInvalidateDelayed(
16, frame.left, frame.top, frame.right, frame.bottom);
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}
-
}
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}
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转载：https://blog.csdn.net/baidu_24743861/article/details/117388319
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