Presque tout dans mon activité fonctionne bien, à l'exception de la référence TAG
TAG
obtient une ligne rouge et dit: 'TAG' has private access in 'Android.support.v4.app.FragmentActivity'
.
MainActivity (sans importations) -
public class MainActivity extends AppCompatActivity {
public static final String DATA_PATH = Environment
.getExternalStorageDirectory().toString() + "/MainActivity";
public static final String lang = "eng";
protected Button _button;
protected ImageView _image;
protected TextView _field;
protected String _path;
protected boolean _taken;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
String[] paths = new String[] { DATA_PATH, DATA_PATH + "tessdata/" };
for (String path : paths) {
File dir = new File(path);
if (!dir.exists()) {
if (!dir.mkdirs()) {
Log.v(TAG, "ERROR: Creation of directory " + path + " on sdcard failed");
return;
} else {
Log.v(TAG, "Created directory " + path + " on sdcard");
}
}
}
if (!(new File(DATA_PATH + "tessdata/" + lang + ".traineddata")).exists()) {
try {
AssetManager assetManager = getAssets();
InputStream in = assetManager.open("tessdata/" + lang + ".traineddata");
//GZIPInputStream gin = new GZIPInputStream(in);
OutputStream out = new FileOutputStream(DATA_PATH
+ "tessdata/" + lang + ".traineddata");
// Transfer bytes from in to out
byte[] buf = new byte[1024];
int len;
//while ((lenf = gin.read(buff)) > 0) {
while ((len = in.read(buf)) > 0) {
out.write(buf, 0, len);
}
in.close();
//gin.close();
out.close();
Log.v(TAG, "Copied " + lang + " traineddata");
} catch (IOException e) {
Log.e(TAG, "Was unable to copy " + lang + " traineddata " + e.toString());
}
}
_image = ( ImageView ) findViewById( R.id.image );
_field = ( TextView ) findViewById( R.id.field );
_button = ( Button ) findViewById( R.id.button );
_button.setOnClickListener( new ButtonClickHandler() );
_path = Environment.getExternalStorageDirectory() + "/Login Data.jpg";
}
public class ButtonClickHandler implements View.OnClickListener
{
public void onClick( View view ){
startCameraActivity();
}
}
protected void startCameraActivity()
{
File file = new File( _path );
Uri outputFileUri = Uri.fromFile( file );
Intent intent = new Intent(Android.provider.MediaStore.ACTION_IMAGE_CAPTURE );
intent.putExtra( MediaStore.EXTRA_OUTPUT, outputFileUri );
startActivityForResult( intent, 0 );
}
protected void onPhotoTaken()
{
_taken = true;
BitmapFactory.Options options = new BitmapFactory.Options();
options.inSampleSize = 4;
Bitmap bitmap = BitmapFactory.decodeFile( _path, options );
_image.setImageBitmap(bitmap);
_field.setVisibility( View.GONE );
ExifInterface exif = new ExifInterface(_path);
int exifOrientation = exif.getAttributeInt(
ExifInterface.TAG_ORIENTATION,
ExifInterface.ORIENTATION_NORMAL);
int rotate = 0;
switch (exifOrientation) {
case ExifInterface.ORIENTATION_ROTATE_90:
rotate = 90;
break;
case ExifInterface.ORIENTATION_ROTATE_180:
rotate = 180;
break;
case ExifInterface.ORIENTATION_ROTATE_270:
rotate = 270;
break;
}
if (rotate != 0) {
int w = bitmap.getWidth();
int h = bitmap.getHeight();
// Setting pre rotate
Matrix mtx = new Matrix();
mtx.preRotate(rotate);
// Rotating Bitmap & convert to ARGB_8888, required by tess
bitmap = Bitmap.createBitmap(bitmap, 0, 0, w, h, mtx, false);
}
bitmap = bitmap.copy(Bitmap.Config.ARGB_8888, true);
TessBaseAPI baseApi = new TessBaseAPI();
baseApi.init(DATA_PATH, lang);
baseApi.setImage(bitmap);
String recognizedText = baseApi.getUTF8Text();
baseApi.end();
}
@Override
protected void onSaveInstanceState( Bundle outState ) {
outState.putBoolean( MainActivity.PHOTO_TAKEN, _taken );
}
@Override
protected void onRestoreInstanceState( Bundle savedInstanceState)
{
Log.i( "MakeMachine", "onRestoreInstanceState()");
if( savedInstanceState.getBoolean( MainActivity.PHOTO_TAKEN ) ) {
onPhotoTaken();
}
}
Vous devez définir une constante pour votre tag dans MainActivity
:
private static final String TAG = "MainActivity"
essayez ce qui suit
private static final String TAG = MainActivity.class.getSimpleName();
Vous pouvez utiliser ce champ dans n'importe quelle activité ou fragment.
Eh bien, c'est juste une façon pour Android de nous dire que nous n'avons pas défini TAG. Pour définir le TAG dans le fichier actuel, nous pouvons aller à MainActivity Class et taper "logt", vous obtiendrez des suggestions de code automatique du studio Android, appuyez sur Entrée là et vous obtiendrez le code suivant.
private static final String TAG = "MainActivity";
Une fois que vous ajoutez ceci à votre code, votre erreur disparaîtra