Android实现二维码扫描功能-ZXing插件接入

package com.google.zxing.activity; import android.app.ProgressDialog; import android.content.Intent; import android.content.res.AssetFileDescriptor; import android.database.Cursor; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.media.AudioManager; import android.media.MediaPlayer; import android.media.MediaPlayer.OnCompletionListener; import android.os.Bundle; import android.os.Handler; import android.os.Message; import android.os.Vibrator; import android.provider.MediaStore; import android.support.v7.app.AppCompatActivity; import android.support.v7.widget.Toolbar; import android.text.TextUtils; import android.view.Menu; import android.view.MenuItem; import android.view.SurfaceHolder; import android.view.SurfaceHolder.Callback; import android.view.SurfaceView; import android.view.View; import android.widget.ImageButton; import android.widget.ImageView; import android.widget.Toast; import com.dommy.qrcode.R; import com.dommy.qrcode.util.Constant; import com.google.zxing.BarcodeFormat; import com.google.zxing.BinaryBitmap; import com.google.zxing.ChecksumException; import com.google.zxing.DecodeHintType; import com.google.zxing.FormatException; import com.google.zxing.NotFoundException; import com.google.zxing.Result; import com.google.zxing.camera.CameraManager; import com.google.zxing.common.HybridBinarizer; import com.google.zxing.decoding.CaptureActivityHandler; import com.google.zxing.decoding.InactivityTimer; import com.google.zxing.decoding.RGBLuminanceSource; import com.google.zxing.qrcode.QRCodeReader; import com.google.zxing.view.ViewfinderView; import java.io.IOException; import java.util.Hashtable; import java.util.Vector; /** * Initial the camera * * @author Ryan.Tang */ public class CaptureActivity extends AppCompatActivity implements Callback { private static final int REQUEST_CODE_SCAN_GALLERY = 100; private CaptureActivityHandler handler; private ViewfinderView viewfinderView; private ImageButton back; private boolean hasSurface; private Vector<BarcodeFormat> decodeFormats; private String characterSet; private InactivityTimer inactivityTimer; private MediaPlayer mediaPlayer; private boolean playBeep; private static final float BEEP_VOLUME = 0.10f; private boolean vibrate; private ProgressDialog mProgress; private String photo_path; private Bitmap scanBitmap; // private Button cancelScanButton; /** * Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_scanner); //ViewUtil.addTopView(getApplicationContext(), this, R.string.scan_card); CameraManager.init(getApplication()); viewfinderView = (ViewfinderView) findViewById(R.id.viewfinder_content); back = (ImageButton) findViewById(R.id.btn_back); back.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { finish(); } }); // cancelScanButton = (Button) this.findViewById(R.id.btn_cancel_scan); hasSurface = false; inactivityTimer = new InactivityTimer(this); //添加toolbar // addToolbar(); } private void addToolbar() { Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar); // ImageView more = (ImageView) findViewById(R.id.scanner_toolbar_more); // assert more != null; // more.setOnClickListener(new View.OnClickListener() { // @Override // public void onClick(View v) { // // } // }); setSupportActionBar(toolbar); } @Override public boolean onCreateOptionsMenu(Menu menu) { //getMenuInflater().inflate(R.menu.scanner_menu, menu); return true; } @Override public boolean onOptionsItemSelected(MenuItem item) { // switch (item.getItemId()){ // case R.id.scan_local: // //打开手机中的相册 // Intent innerIntent = new Intent(Intent.ACTION_GET_CONTENT); //"android.intent.action.GET_CONTENT" // innerIntent.setType("image/*"); // Intent wrapperIntent = Intent.createChooser(innerIntent, "选择二维码图片"); // this.startActivityForResult(wrapperIntent, REQUEST_CODE_SCAN_GALLERY); // return true; // } return super.onOptionsItemSelected(item); } @Override protected void onActivityResult(final int requestCode, int resultCode, Intent data) { if (requestCode==RESULT_OK) { switch (requestCode) { case REQUEST_CODE_SCAN_GALLERY: //获取选中图片的路径 Cursor cursor = getContentResolver().query(data.getData(), null, null, null, null); if (cursor.moveToFirst()) { photo_path = cursor.getString(cursor.getColumnIndex(MediaStore.Images.Media.DATA)); } cursor.close(); mProgress = new ProgressDialog(CaptureActivity.this); mProgress.setMessage("正在扫描..."); mProgress.setCancelable(false); mProgress.show(); new Thread(new Runnable() { @Override public void run() { Result result = scanningImage(photo_path); if (result != null) { // Message m = handler.obtainMessage(); // m.what = R.id.decode_succeeded; // m.obj = result.getText(); // handler.sendMessage(m); Intent resultIntent = new Intent(); Bundle bundle = new Bundle(); bundle.putString(Constant.INTENT_EXTRA_KEY_QR_SCAN ,result.getText()); // Logger.d("saomiao",result.getText()); // bundle.putParcelable("bitmap",result.get); resultIntent.putExtras(bundle); CaptureActivity.this.setResult(RESULT_OK, resultIntent); } else { Message m = handler.obtainMessage(); m.what = R.id.decode_failed; m.obj = "Scan failed!"; handler.sendMessage(m); } } }).start(); break; } } super.onActivityResult(requestCode, resultCode, data); } /** * 扫描二维码图片的方法 * @param path * @return */ public Result scanningImage(String path) { if(TextUtils.isEmpty(path)){ return null; } Hashtable<DecodeHintType, String> hints = new Hashtable<>(); hints.put(DecodeHintType.CHARACTER_SET, "UTF8"); //设置二维码内容的编码 BitmapFactory.Options options = new BitmapFactory.Options(); options.inJustDecodeBounds = true; // 先获取原大小 scanBitmap = BitmapFactory.decodeFile(path, options); options.inJustDecodeBounds = false; // 获取新的大小 int sampleSize = (int) (options.outHeight / (float) 200); if (sampleSize <= 0) sampleSize = 1; options.inSampleSize = sampleSize; scanBitmap = BitmapFactory.decodeFile(path, options); RGBLuminanceSource source = new RGBLuminanceSource(scanBitmap); BinaryBitmap bitmap1 = new BinaryBitmap(new HybridBinarizer(source)); QRCodeReader reader = new QRCodeReader(); try { retur