package io.comi.rn.barcode.scanner.impl; import android.app.Activity; import android.content.Intent; import android.graphics.Bitmap; import android.net.Uri; import android.os.AsyncTask; import android.os.Bundle; import android.support.annotation.NonNull; import android.util.Log; import android.util.TypedValue; import android.view.SurfaceView; import android.view.View; import android.view.Window; import android.view.WindowManager; import android.widget.ImageView; import android.widget.RelativeLayout; import android.widget.TextView; import android.widget.Toast; import com.afollestad.materialdialogs.MaterialDialog; import com.google.zxing.Result; import com.linchaolong.android.imagepicker.ImagePicker; import com.linchaolong.android.imagepicker.cropper.CropImage; import com.linchaolong.android.imagepicker.cropper.CropImageView; import io.comi.rn.barcode.scanner.AbsCaptureActivity; import io.comi.rn.barcode.scanner.IViewfinder; import io.comi.rn.barcode.scanner.R; import io.comi.rn.barcode.scanner.Size; import io.comi.rn.barcode.scanner.camera.FrontLightMode; /** * 扫码界面成品 * Created by Star on 2016/12/8. */ public class CaptureActivity extends AbsCaptureActivity implements View.OnClickListener { private static final String TAG = "CaptureActivity"; public static final int RESULT_CODE_SCAN = 1001; private static final int RESULT_LOAD_IMAGE = 123; private SurfaceView mSurfaceView; private ViewfinderView mViewfinderView; private ImageView mFlashSwitcherView; private ImageDecodeTask mDecodeTask; //标题 protected String mTitle; protected String mTip; protected boolean mIsMaterial; protected int mWindowColor; protected Size mImagePickerWindowsSize; private boolean isFlashOn; private MaterialDialog mAlertDialog; private ImagePicker mImagePicker; public static void startActivityForResult(Activity activity, int requestCode, CaptureConfig captureConfig) { Intent intent = new Intent(activity, CaptureActivity.class); CaptureIntentUtil.putCaptureConfig(intent, captureConfig); activity.startActivityForResult(intent, requestCode); } @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); getWindow().addFlags(Window.FEATURE_NO_TITLE); getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN); //默认闪光灯是关闭的 isFlashOn = false; setContentView(R.layout.activity_capture); setupHeader(); setupScannerView(); setupImagePicker(); } //初始化顶部导航栏 private void setupHeader() { //返回键 ImageView backView = (ImageView) findViewById(R.id.backView); TextView titleView = (TextView) findViewById(R.id.titleView); RelativeLayout headerView = (RelativeLayout) findViewById(R.id.headerView); ImageView imagePickerView = (ImageView) findViewById(R.id.imagePicker); mFlashSwitcherView = (ImageView) findViewById(R.id.flashSwitcher); backView.setOnClickListener(this); titleView.setText(mTitle); imagePickerView.setOnClickListener(this); mFlashSwitcherView.setOnClickListener(this); if (mIsMaterial) { //根据是否Material Design 来设置标题的大小 titleView.setTextSize(TypedValue.COMPLEX_UNIT_PX, getResources().getDimension(R.dimen.material_title_text_size)); //返回箭头换成 <- backView.setImageResource(R.drawable.material_back); } } //初始化扫描界面 private void setupScannerView() { mViewfinderView = (ViewfinderView) findViewById(R.id.viewfinderView); mSurfaceView = (SurfaceView) findViewById(R.id.previewView); mViewfinderView.setWindowColor(mWindowColor); mViewfinderView.setTextBelowWindow(mTip); } /** * 初始化扫码参数 */ @Override protected void initConfig() { Intent intent = getIntent(); if (intent == null) { return; } mDecodeFormats = CaptureIntentUtil.getDecodeFormats(intent); mCharacterSet = CaptureIntentUtil.getDecodeCharset(intent); mScannerWindowSize = CaptureIntentUtil.getScannerWindowSize(intent); mTitle = CaptureIntentUtil.getTitle(intent); mTip = CaptureIntentUtil.getTip(intent); mWindowColor = CaptureIntentUtil.getWindowColor(intent); mIsMaterial = CaptureIntentUtil.getMaterialMode(intent); mImagePickerWindowsSize = CaptureIntentUtil.getImagePickerWindowSize(intent); } @Override protected SurfaceView getSurfaceView() { return mSurfaceView; } @Override public IViewfinder getViewfinder() { return mViewfinderView; } /** * 重写此方法来在扫码页面内部处理编码结果， * 默认的处理方式是返回结果个上一个页面 */ @Override public boolean handleDecodeInternally(Result rawResult, Bitmap barcode) { if (rawResult == null) { Log.d(TAG, "没有识别到结果"); showNoScanResultDialog(); return true; } Log.d(TAG, "扫描识别结果：" + rawResult.getText()); Intent intent = new Intent(); CaptureIntentUtil.putResult(intent, rawResult); setResult(Activity.RESULT_OK, intent); finish(); return false; } @Override protected int getBeepSource() { return R.raw.beep; } @Override public void onClick(View v) { //返回键 if (v.getId() == R.id.backView) { finish(); return; } //闪光灯开关 if (v.getId() == R.id.flashSwitcher) { if (isFlashOn) { setLightMode(FrontLightMode.OFF); isFlashOn = false; mFlashSwitcherView.setImageResource(R.drawable.flash_off); } else { setLightMode(FrontLightMode.ON); isFlashOn = true; mFlashSwitcherView.setImageResource(R.drawable.flash_on); } } //选择本地图片 if (v.getId() == R.id.imagePicker) { mImagePicker.startChooser(this, new ImagePicker.Callback() { @Override public void onPickImage(Uri imageUri) { } @Override public void onCropImage(Uri imageUri) { if (imageUri == null) { Toast.makeText(CaptureActivity.this, R.string.no_image_selected, Toast.LENGTH_SHORT).show(); return; } decodeImage(imageUri.getPath()); } @Override public void cropConfig(CropImage.ActivityBuilder builder) { builder.setMultiTouchEnabled(true) .setCropShape(CropImageView.CropShape.RECTANGLE) .setRequestedSize(640, 640) .setAspectRatio(5, 5); } }); } } @Override public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) { super.onRequestPermissionsResult(requestCode, permissions, grantResults); mImagePicker.onRequestPermissionsResult(this, requestCode, permissions, grantResults); } /** * 选择本地图片的回调 */ @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); mImagePicker.onActivityResult(this, requestCode, resultCode, data); } /** * 返回键按下时，如果当前还在执行解码本地图片的任务，则停止任务， * 否则，关闭页面 */ @Override public void onBackPressed() { if (mDecodeTask != null && mDecodeTask.getStatus() == AsyncTask.Status.RUNNING) { mDecodeTask.cancel(true); return; } super.onBackPressed(); } /** * //TODO:图片选择页面的国际化 * 选择本地图片的初始化。这里使用了第三方库， */ private void setupImagePicker() { mImagePicker = new ImagePicker(); mImagePicker.setCropImage(true); } /** * 解析本地图片 */ private void decodeImage(String imagePath) { if (mDecodeTask != null && mDecodeTask.getStatus() == AsyncTask.Status.RUNNING) { mDecodeTask.cancel(true); } mDecodeTask = new ImageDecodeTask(CaptureActivity.this, mDecodeHints) { @Override protected void onPostExecute(DecodeResult decodeResult) { super.onPostExecute(decodeResult); handleDecodeInternally(decodeResult.getResult(), decodeResult.getOriBitmap()); } }; mDecodeTask.execute(imagePath); } /** * 弹出对话框,提示找不到条码 */ private void showNoScanResultDialog() { mAlertDialog = new MaterialDialog.Builder(this).content(R.string.scanner_result_not_found) .cancelable(false) .positiveText(R.string.scanner_dialog_ok) .show(); } /** * 销毁时，注意要销毁解码任务和对话框 */ @Override protected void onDestroy() { super.onDestroy(); if (mDecodeTask != null) { mDecodeTask.cancel(true); mDecodeTask = null; } if (mAlertDialog != null) { mAlertDialog.dismiss(); } } }