紺碧のクエリで値を取得しようとしています! その後、これらの値を取得して新しいインテントに移動したかったのですが、スレッドのためにこれを行う方法がわかりません
ここで私は必要なものQrCodeを見つけ始めますid
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.qrcode_activity);
cameraPreview = findViewById(R.id.cameraPreview);
txtResult = findViewById(R.id.txtresult);
barcodeDetector = new BarcodeDetector.Builder(this).
setBarcodeFormats(Barcode.QR_CODE).build();
cameraSource = new CameraSource.Builder(getApplicationContext(), barcodeDetector)
.setRequestedPreviewSize(640, 480).build();
intent = new Intent(getBaseContext(), ValuesActivity.class);
barcodeDetector.setProcessor(new Detector.Processor<Barcode>() {
@Override
public void release() {
}
@Override
public void receiveDetections(Detector.Detections<Barcode> detections) {
final SparseArray<Barcode> qrcodes = detections.getDetectedItems();
if(qrcodes.size() != 0)
{
txtResult.post(new Runnable() {
@Override
public void run() {
//Create vibrate
Vibrator vibrator = (Vibrator)getApplicationContext().getSystemService(Context.VIBRATOR_SERVICE);
vibrator.vibrate(100);
_idDevice = qrcodes.valueAt(0).displayValue;
txtResult.setText(qrcodes.valueAt(0).displayValue);
getQuery();
}
});
}
}
});
cameraPreview.getHolder().addCallback(new SurfaceHolder.Callback() {
@Override
public void surfaceCreated(SurfaceHolder holder) {
if (ActivityCompat.checkSelfPermission(getApplicationContext(), Manifest.permission.CAMERA) != PackageManager.PERMISSION_GRANTED) {
// TODO: Consider calling
// ActivityCompat#requestPermissions
// here to request the missing permissions, and then overriding
// public void onRequestPermissionsResult(int requestCode, String[] permissions,
// int[] grantResults)
// to handle the case where the user grants the permission. See the documentation
// for ActivityCompat#requestPermissions for more details.
ActivityCompat.requestPermissions(QrCodeActivity.this, new String[]{Manifest.permission.CAMERA},RequestCameraPermissionID);
return;
}
try {
cameraSource.start(cameraPreview.getHolder());
} catch (IOException e) {
e.printStackTrace();
}
}
@Override
public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {
}
@Override
public void surfaceDestroyed(SurfaceHolder holder) {
cameraSource.stop();
}
});
}
ここでクエリを実行しますが、呼び出すrunUIThreadと、そのスレッドから別の試行で変数にアクセスできません。ご覧のように：
public void getQuery(){
try
{
final ProgressDialog dialog = ProgressDialog.show(QrCodeActivity.this, "", "Loading. Please wait...", true);
Query query = Query.Companion.select()
.from("Equipment")
.where("deviceId", "Box2");
AzureData.queryDocuments("Equipment", "valuesDatabase", query, DictionaryDocument.class,null, onCallback( response -> {
Log.e(TAG, "Document list result: " + response.isSuccessful());
idnomes = new ArrayList<>();
listaValues = new ArrayList<>();
listaValuesSensor = new HashMap<>();
datasAlertas = new ArrayList<>();
runOnUiThread(() -> {
int i = 0;
for( Document d : response.getResource().getItems()){
if(response.getResource().getItems().get(i).get("deviceId").equals("Box2")) {
Object alert = response.getResource().getItems().get(i).get("alert");
Object valueSensor = response.getResource().getItems().get(i).get("value");
Object datavalor = response.getResource().getItems().get(i).get("data");
i++;
if(listaValuesSensor.isEmpty()){
listaValues.add(Integer.valueOf(valueSensor.toString()));
listaValuesSensor.put(alert.toString(),listaValues );
datasAlertas.add(datavalor.toString());
}else{
if(listaValuesSensor.containsKey(alert.toString())){
ArrayList<Integer> o = listaValuesSensor.get(alert.toString());
o.add(Integer.valueOf(valueSensor.toString()));
listaValuesSensor.put(alert.toString(),o );
datasAlertas.add(datavalor.toString());
}else{
listaValues = new ArrayList<>();
listaValues.add(Integer.valueOf(valueSensor.toString()));
listaValuesSensor.put(alert.toString(), listaValues);
datasAlertas.add(datavalor.toString());
}
}
if(!idnomes.contains(alert.toString())) {
d.setId(alert.toString());
idnomes.add(alert.toString());
}
}
dialog.cancel();
}
});
Intent i = new Intent(getApplicationContext(),ValuesActivity.class);
intent.putExtra("id_equipamento", "Box2");
//intent.putExtra("listaValuesSensor", listaValuesSensor.get(coll.getId()).toString());
intent.putExtra("listaValuesSensor", listaValuesSensor);
intent.putExtra("dataValues", datasAlertas);
startActivity(i);
}));
}
catch (Exception ex) {
ex.printStackTrace();
}
}
}