Microsoft Hawaii SDKを使用して、携帯電話のカメラで撮影した写真のOCRを実行するAndroidアプリを作成しています。Androidアプリの実行中にエラーが発生しました。ログ猫はこれです：
02-07 14:48:59.617: E/AndroidRuntime(24660): FATAL EXCEPTION: main
02-07 14:48:59.617: E/AndroidRuntime(24660): java.lang.NoClassDefFoundError: com.example.mobile.RecognitionActivity
02-07 14:48:59.617: E/AndroidRuntime(24660): at com.example.mobile.FotocameraActivity.onActivityResult(FotocameraActivity.java:143)
02-07 14:48:59.617: E/AndroidRuntime(24660): at android.app.Activity.dispatchActivityResult(Activity.java:4820)
02-07 14:48:59.617: E/AndroidRuntime(24660): at android.app.ActivityThread.deliverResults(ActivityThread.java:2980)
02-07 14:48:59.617: E/AndroidRuntime(24660): at android.app.ActivityThread.performResumeActivity(ActivityThread.java:2435)
02-07 14:48:59.617: E/AndroidRuntime(24660): at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:2476)
02-07 14:48:59.617: E/AndroidRuntime(24660): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1990)
02-07 14:48:59.617: E/AndroidRuntime(24660): at android.app.ActivityThread.handleRelaunchActivity(ActivityThread.java:3355)
02-07 14:48:59.617: E/AndroidRuntime(24660): at android.app.ActivityThread.access$700(ActivityThread.java:127)
02-07 14:48:59.617: E/AndroidRuntime(24660): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1155)
02-07 14:48:59.617: E/AndroidRuntime(24660): at android.os.Handler.dispatchMessage(Handler.java:99)
02-07 14:48:59.617: E/AndroidRuntime(24660): at android.os.Looper.loop(Looper.java:137)
02-07 14:48:59.617: E/AndroidRuntime(24660): at android.app.ActivityThread.main(ActivityThread.java:4476)
02-07 14:48:59.617: E/AndroidRuntime(24660): at java.lang.reflect.Method.invokeNative(Native Method)
02-07 14:48:59.617: E/AndroidRuntime(24660): at java.lang.reflect.Method.invoke(Method.java:511)
02-07 14:48:59.617: E/AndroidRuntime(24660): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:816)
02-07 14:48:59.617: E/AndroidRuntime(24660): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:583)
02-07 14:48:59.617: E/AndroidRuntime(24660): at dalvik.system.NativeStart.main(Native Method)
FotocameraActivity.Javaのコードは次のとおりです。
package com.example.mobile;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import android.annotation.SuppressLint;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.graphics.Rect;
import android.location.GpsStatus;
import android.location.GpsStatus.Listener;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.net.Uri;
import android.os.Bundle;
import android.provider.MediaStore;
import android.util.Log;
import android.view.View;
import android.widget.ImageView;
public class FotocameraActivity extends Activity {
// dati che servono per la fotocamera
private static final int CAMERA_REQUEST = 100; // un numero a nostro
// piacimento
File tmpFotoFile = null;
byte[] bitmapdata;
ImageView preview;
LocationManager locationManager;
String gps;
final static String ARRAY_BYTE = "ARRAY_BYTE";
final static String GPS = "GPS";
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
locationManager = (LocationManager)this.getSystemService(Context.LOCATION_SERVICE);
if(locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER)){
startGpsTracking();
}
try {
launchCamera();
} catch (IOException e) {
throw new RuntimeException(e);
}
}
private void startGpsTracking() {
// TODO Auto-generated method stub
locationManager.addGpsStatusListener(gpsListener);
locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 500, 3, myLocationListener);
}
private Listener gpsListener = new Listener(){
public void onGpsStatusChanged(int status){
switch(status){
case GpsStatus.GPS_EVENT_FIRST_FIX:
Log.d(LOCATION_SERVICE,"onGpsStatusChanged First Fix");
break;
case GpsStatus.GPS_EVENT_SATELLITE_STATUS:
Log.d(LOCATION_SERVICE, "onGpsStatusChanged Satellite");
break;
case GpsStatus.GPS_EVENT_STARTED:
Log.d(LOCATION_SERVICE, "onGpsStatusChanged Started");
break;
case GpsStatus.GPS_EVENT_STOPPED:
Log.d(LOCATION_SERVICE, "onGpsStatusChanged Stopped");
break;
}
}
};
private LocationListener myLocationListener = new LocationListener(){
public void onLocationChanged(Location location) {
// TODO Auto-generated method stub
double lng = location.getLongitude(), lat = location.getLatitude();
gps += String.format("%6f", lng) + "#" + String.format("%6f", lat);
}
public void onProviderDisabled(String provider) {
// TODO Auto-generated method stub
}
public void onProviderEnabled(String provider) {
// TODO Auto-generated method stub
}
public void onStatusChanged(String provider, int status, Bundle extras) {
// TODO Auto-generated method stub
}
};
private void launchCamera() throws IOException {
// Fase 1
tmpFotoFile = File.createTempFile("OCRPic", null);
Intent cameraIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
cameraIntent.putExtra(MediaStore.EXTRA_OUTPUT, android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI); //Uri.fromFile(tmpFotoFile));
startActivityForResult(cameraIntent, CAMERA_REQUEST);
}
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == CAMERA_REQUEST) {
Bitmap datifoto = null;
Uri picUri = data.getData();
if(picUri != null){
try {
datifoto = android.provider.MediaStore.Images.Media.getBitmap(this.getContentResolver(), picUri);
//datifoto = android.provider.MediaStore.Images.Media.getBitmap(this.getContentResolver(), android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);//Uri.fromFile(tmpFotoFile));
} catch (FileNotFoundException e) {
throw new RuntimeException(e);
} catch (IOException e) {
throw new RuntimeException(e);
}
}
ByteArrayOutputStream bos = new ByteArrayOutputStream();
datifoto.compress(Bitmap.CompressFormat.JPEG, 70, bos);
bitmapdata = bos.toByteArray();
//tmpFotoFile.delete();
SimpleView view = new SimpleView(this, datifoto); // creo l'istanza
// // della // view...
setContentView(view); // e la setto
Intent intentRecognize = new Intent(this, RecognitionActivity.class); **<-Here refers the logcat for the error**
intentRecognize.putExtra(ARRAY_BYTE, bitmapdata);
intentRecognize.putExtra(GPS, gps);
startActivity(intentRecognize);
}
}
}
class SimpleView extends View{
private Bitmap bitmap;
private Paint tmpPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
public SimpleView(Context context, Bitmap bitmap) {
super(context);
this.bitmap = Bitmap.createScaledBitmap(bitmap,480,320,false);//ridimensiono l'immagine
}
@SuppressLint("DrawAllocation")
@Override
protected void onDraw(Canvas canvas){
super.onDraw(canvas);
canvas.drawBitmap( bitmap, null , new Rect(0,0,getWidth(),getHeight()),tmpPaint);
}
}
RecognitionActivity.Javaのコードは次のとおりです。
package com.example.mobile;
import android.os.Bundle;
import android.view.Menu;
import android.view.View;
import android.widget.TextView;
import microsoft.hawaii.sampleappbase.HawaiiBaseAuthActivity;
public class RecognitionActivity extends HawaiiBaseAuthActivity {
private TextView tv;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_recognition);
tv.setText("Prova");
tv.setVisibility(View.VISIBLE);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.activity_recognition, menu);
return true;
}
}
RecognitionActivityで、Activityからそのアクティビティを拡張すると機能するのに気づきましたが、HawaiiBaseAuthActivityを拡張するとクラッシュします。
logcatに別のメッセージがあり、アプリが起動した瞬間に表示されます。
02-07 14:48:14.717: E/dalvikvm(24660): Could not find class 'com.example.mobile.RecognitionActivity', referenced from method com.example.mobile.FotocameraActivity.onActivityResult
しかし、そのアクティビティは私のワークスペースで定義されています！
誰かが私を助けてくれたらとてもありがたいです。