package com.zl.tesseract.scanner;
import android.app.AlertDialog;
import android.app.ProgressDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.pm.PackageManager;
import android.graphics.Bitmap;
import android.graphics.Rect;
import android.hardware.Camera;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.os.Vibrator;
import android.text.TextUtils;
import android.view.SurfaceHolder;
import android.view.SurfaceHolder.Callback;
import android.view.SurfaceView;
import android.view.View;
import android.view.ViewStub;
import android.view.Window;
import android.widget.Button;
import android.widget.CompoundButton;
import android.widget.Switch;
import android.widget.Toast;
import com.google.zxing.Result;
import com.zl.tesseract.R;
import com.zl.tesseract.scanner.camera.CameraManager;
import com.zl.tesseract.scanner.decode.CaptureActivityHandler;
import com.zl.tesseract.scanner.decode.DecodeManager;
import com.zl.tesseract.scanner.decode.InactivityTimer;
import com.zl.tesseract.scanner.tess.TesseractCallback;
import com.zl.tesseract.scanner.tess.TesseractThread;
import com.zl.tesseract.scanner.utils.Tools;
import com.zl.tesseract.scanner.view.ImageDialog;
import com.zl.tesseract.scanner.view.ScannerFinderView;
import java.io.IOException;
import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;
import androidx.core.app.ActivityCompat;
import androidx.core.content.ContextCompat;
import static android.Manifest.permission.CAMERA;
import static android.Manifest.permission.READ_EXTERNAL_STORAGE;
/**
* 二维码扫描类。
*/
public class ScannerActivity extends AppCompatActivity implements Callback, Camera.PictureCallback, Camera.ShutterCallback{
private CaptureActivityHandler mCaptureActivityHandler;
private boolean mHasSurface;
private InactivityTimer mInactivityTimer;
private ScannerFinderView mQrCodeFinderView;
private SurfaceView mSurfaceView;
private ViewStub mSurfaceViewStub;
private DecodeManager mDecodeManager = new DecodeManager();
private Switch switch1;
private Button bt;
private ProgressDialog progressDialog;
private Bitmap bmp;
@Override
public void onCreate(Bundle savedInstanceState) {
requestWindowFeature(Window.FEATURE_NO_TITLE);
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_scanner);
if (ContextCompat.checkSelfPermission(this, CAMERA) != PackageManager.PERMISSION_GRANTED ||
ContextCompat.checkSelfPermission(this, READ_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {
ActivityCompat.requestPermissions(this, new String[]{CAMERA, READ_EXTERNAL_STORAGE}, 100);
} else {
initView();
initData();
}
}
@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
if (requestCode == 100){
boolean permissionGranted = true;
for (int i : grantResults) {
if (i != PackageManager.PERMISSION_GRANTED) {
permissionGranted = false;
}
}
if (permissionGranted){
initView();
initData();
}else {
// 无权限退出
finish();
}
}
}
private void initView() {
mQrCodeFinderView = (ScannerFinderView) findViewById(R.id.qr_code_view_finder);
mSurfaceViewStub = (ViewStub) findViewById(R.id.qr_code_view_stub);
switch1 = (Switch) findViewById(R.id.switch1);
mHasSurface = false;
bt = (Button) findViewById(R.id.bt);
bt.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
bt.setEnabled(false);
buildProgressDialog();
CameraManager.get().takeShot(ScannerActivity.this, ScannerActivity.this, ScannerActivity.this);
}
});
Switch switch2 = (Switch) findViewById(R.id.switch2);
switch2.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
CameraManager.get().setFlashLight(isChecked);
}
});
}
public Rect getCropRect() {
return mQrCodeFinderView.getRect();
}
public boolean isQRCode() {
return switch1.isChecked();
}
private void initData() {
mInactivityTimer = new InactivityTimer(this);
}
@Override
protected void onResume() {
super.onResume();
if (mInactivityTimer != null){
CameraManager.init();
initCamera();
}
}
private void initCamera() {
if (null == mSurfaceView) {
mSurfaceViewStub.setLayoutResource(R.layout.layout_surface_view);
mSurfaceView = (SurfaceView) mSurfaceViewStub.inflate();
}
SurfaceHolder surfaceHolder = mSurfaceView.getHolder();
if (mHasSurface) {
initCamera(surfaceHolder);
} else {
surfaceHolder.addCallback(this);
// 防止sdk8的设备初始化预览异常(可去除，本项目最小16)
surfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
}
}
@Override
protected void onPause() {
if (mCaptureActivityHandler != null) {
try {
mCaptureActivityHandler.quitSynchronously();
mCaptureActivityHandler = null;
if (null != mSurfaceView && !mHasSurface) {
mSurfaceView.getHolder().removeCallback(this);
}
CameraManager.get().closeDriver();
} catch (Exception e) {
// 关闭摄像头失败的情况下,最好退出该Activity,否则下次初始化的时候会显示摄像头已占用.
finish();
}
}
super.onPause();
}
@Override
protected void onDestroy() {
if (null != mInactivityTimer) {
mInactivityTimer.shutdown();
}
super.onDestroy();
}
/**
* Handler scan result
*
* @param result
*/
public void handleDecode(Result result) {
mInactivityTimer.onActivity();
if (null == result) {
mDecodeManager.showCouldNotReadQrCodeFromScanner(this, new DecodeManager.OnRefreshCameraListener() {
@Override
public void refresh() {
restartPreview();
}
});
} else {
handleResult(result);
}
}
private void initCamera(SurfaceHolder surfaceHolder) {
try {
if (!CameraManager.get().openDriver(surfaceHolder)) {
return;
}
} catch (IOException e) {
// 基本不会出现相机不存在的情况
Toast.makeText(this, getString(R.string.camera_not_found), Toast.LENGTH_SHORT).show();
finish();
return;
} catch (RuntimeException re) {
re.printStackTrace();
return;
}
mQrCodeFinderView.setVisibility(View.VISIBLE);
findViewById(R.id.qr_code_view_background).setVisibility(View.GONE);
if (mCaptureActivityHandler == null) {
mCaptureActivityHandler = new CaptureActivityHandler(this);
}
}
public void restartPreview() {
if (null != mCaptureActivityHandler) {
try {
mCaptureActivityHandler.restartPreviewAndDecode();
} catch (Exception e) {
e.printStackTrace();
}
}
}
@Override
public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {}
@Override
public void surfaceCreated(SurfaceHolder holder) {
if (!mHasSurface) {
mHasSurface = true;
initCamera(holder);
}
}
@Override
public void surfaceDestroyed(SurfaceHolder holder) {
mHasSurface = false;
}
public Handler getCaptureActivityHandler() {
return mCaptureActivityHandler;
}
private void handleResult(Result result) {
if (TextUtils.isEmpty(result.getText())) {
mDecodeManager.showCouldNotReadQrCodeFromScanner(this, new DecodeManager.OnRefreshCameraListener() {
@Override
public void refresh() {
restartPreview();
}
});
} else {
Vibrator vibrator = (Vibrator) this.getSystemService(Context.VIBRATOR_SERVICE);
vibrator.vibrate(200L);
if (switch1.isChecked()) {
qrSucceed(result.getText());
} else {
phoneSucceed(result.getText(), result.getBitmap());
}
}
}
@Override
public void onPictureTaken(byte[] data, Camera camera) {
if (data == null) {
return;
}
mCaptureActivityHandler.onPause();
bmp = null;
bmp = Tools.getFocusedBitmap(this, camera, data, getCropRect());
TesseractThread mTesseractThread = new TesseractThread(bmp, new TesseractCallback() {
@Override
public void succeed(String result) {
Message message = Message.obtain();
message.what = 0;
message.obj = result;
mHandler.sendMessage(message);
}
@Override
public void fail() {
Message message = Message.obtain();
message.what = 1;
mHandler.sendMessage(message);
}
});
Thread thread = new Thread(mTesseractThread);
thread.start();
}
@Override
public void onShutter() {}
private void qrSucceed(String result){
AlertDialog dialog = new AlertDialog.Builder(this).setTitle(R.string.notification)
.setMessage(result)
.setPositiveButton(R.string.positive_button_confirm, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
restartPreview();
}
})
.show();
dialog.setOnDismissListener(new DialogInterface.OnDismissListener() {
@Override
public void onDismiss(DialogInterface dialog) {
restartPreview();
}
});
}
private void phoneSucceed(String result, Bitmap bitmap){
ImageDialog dialog = new ImageDialog(this);
dialog.addBitmap(bitmap);
dialog.addTitle(TextUtils.isEmpty(result) ? "未识别到手机号码" : result);
dialog.show();
dialog.setOnDismissListener(new DialogInterface.OnDismissListener() {
@Override
public void onDismiss(DialogInterface dialog) {
restartPreview();
}
});
}
private Handler mHandler = new Handler(){
@Override
public void handleMessage(Message msg) {
super.handleMessage(msg);
bt.setEnabled(true);
cancelProgressDialog();
switch (msg.what){
case 0:
phoneSucceed((String) msg.obj, bmp);
break;
case 1:
Toast.makeText(ScannerActivity.this, "无法识别", Toast.LENGTH_SHORT).show();
break;
default:
break;
}
}
};
public void buildProgressDialog() {
if (progressDialog == null) {
progressDialog = new ProgressDialog(this);
progressDialog.setProgressStyle(ProgressDialog.STYLE_SPINNER);
}
progressDialog.setMessage("识别中...");
progressDialog.setCancelable(true);
progressDialog.show();
}
public void cancelProgressDialog() {
if (progressDialog != null){
if (progressDialog.isShowing()) {
progressDialog.dismiss();
}
}
}
}
