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[此来源是所有来源的一部分]
现在我遇到了一些问题。我将操作放在菜单按钮中并处理它。 id.action_resolution是完美的。但问题是id.action_naming。 我想更改使用文件名的字段值[studentId]。 但无论我做什么，价值都不会改变。 值吐司的输出只是空白。 变量声明和ID分配是完美的。 此菜单侦听器在onCreate（）中声明 我怎样才能改变Field的价值？
fabSpeedDial.setMenuListener(new FabSpeedDial.MenuListener() {
@Override
public boolean onPrepareMenu(NavigationMenu navigationMenu) {
return true; //false: 메뉴를 보여주지않는다.
}
@Override
public boolean onMenuItemSelected(MenuItem menuItem) {
if(menuItem.getItemId()== id.action_resolution){
AlertDialog.Builder dlg = new AlertDialog.Builder(MainActivity.this);
resolutionView = (View)View.inflate(MainActivity.this, R.layout.listview, null);
listView = (ListView)resolutionView.findViewById(R.id.listView);
listView.setAdapter(resolutionAdapter);
listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE);
dlg.setTitle("해상도 설정");
dlg.setView(resolutionView);
dlg.setPositiveButton("설정", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
int count = listView.getCheckedItemPosition();
String temp=resolutionAdapter.getItem(count);
String[] whString=temp.split("x",2);
int height=Integer.parseInt(whString[1]);
int width=Integer.parseInt(whString[0]);
mOpenCvCameraView.setMinimumHeight(height); // 카메라 해상도 관련 처리
mOpenCvCameraView.setMinimumWidth(width);
mOpenCvCameraView.setMaxFrameSize(width,height);
mOpenCvCameraView.disableView();
mOpenCvCameraView.enableView();
listView.setItemChecked(count,true);
Toast.makeText(getApplicationContext(),"설정되었습니다.",Toast.LENGTH_LONG).show();
}
});
dlg.show();
}
if(menuItem.getItemId()==id.action_naming){
AlertDialog.Builder noticeDialog = new AlertDialog.Builder(MainActivity.this);
//사용방법 관련
noticeDialog.setTitle("사용 방법");
noticeDialog.setMessage("휴대폰을 가로 방향으로 들고 번호판이 화면에 감지 될 경우 캡쳐됩니다.\n" +
"내장메모리의 CarPlate 폴더 안에 png 파일로 저장됩니다.\n");
noticeDialog.setPositiveButton("확인", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
String id = edtNumber.getText().toString();
studentId = id;
Toast.makeText(getApplicationContext(),studentId,Toast.LENGTH_LONG).show();
}
});
noticeDialog.setView(layout.inputnumber);
noticeDialog.show();
}
return true;
}
@Override
public void onMenuClosed() {
}
});
...
<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android">
<item
android:id="@+id/action_resolution"
android:icon="@drawable/ic_resolution"
android:title="해상도 조절"
/>
<item
android:id="@+id/action_naming"
android:icon="@drawable/ic_naming_file"
android:title="파일명 설정"/>
</menu>
这是我的onCreate（）。
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON,
WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
setContentView(layout.activity_main);
camera = Camera.open();
final Camera.Parameters parameters = camera.getParameters();
mPlayer = MediaPlayer.create(this, R.raw.dingdong);
mPlayer.setLooping(false);
errorPlayer = MediaPlayer.create(this, raw.save_error);
errorPlayer.setLooping(false);
resolutionList = new ArrayList<String>();
mOpenCvCameraView = (CameraBridgeViewBase) findViewById(id.activity_surface_view);
edtNumberView = (View)View.inflate(MainActivity.this, layout.inputnumber, null);
edtNumber = (EditText)edtNumberView.findViewById(R.id.edtNumber);
for(Camera.Size size : parameters.getSupportedPictureSizes())
resolutionList.add(size.width+"x"+size.height);
//학번으로 파일 명 설정하게 해주는 작업
Log.d(TAG, "onCreate starts");
final String dirPath=Environment.getExternalStorageDirectory().getAbsolutePath();
final File myDir=new File(dirPath+"/CarPlate");
if(!myDir.exists()){
myDir.mkdirs();
Toast.makeText(getApplicationContext(),"내장 메모리에 CarPlate 폴더가 생성되었습니다.",Toast.LENGTH_LONG).show();
}
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
//퍼미션 상태 확인
if (!hasPermissions(PERMISSIONS)) {
//퍼미션 허가 안되어있다면 사용자에게 요청
requestPermissions(PERMISSIONS, PERMISSIONS_REQUEST_CODE);
}
}
///
///해상도 설정 관련
resolutionAdapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_single_choice, resolutionList);
FabSpeedDial fabSpeedDial = (FabSpeedDial)findViewById(id.fabSpeedDial);
fabSpeedDial.setMenuListener(new FabSpeedDial.MenuListener() {
@Override
public boolean onPrepareMenu(NavigationMenu navigationMenu) {
return true; //false: 메뉴를 보여주지않는다.
}
@Override
public boolean onMenuItemSelected(MenuItem menuItem) {
if(menuItem.getItemId()== id.action_resolution){
AlertDialog.Builder dlg = new AlertDialog.Builder(MainActivity.this);
resolutionView = (View)View.inflate(MainActivity.this, R.layout.listview, null);
listView = (ListView)resolutionView.findViewById(R.id.listView);
listView.setAdapter(resolutionAdapter);
listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE);
dlg.setTitle("해상도 설정");
dlg.setView(resolutionView);
dlg.setPositiveButton("설정", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
int count = listView.getCheckedItemPosition();
String temp=resolutionAdapter.getItem(count);
String[] whString=temp.split("x",2);
int height=Integer.parseInt(whString[1]);
int width=Integer.parseInt(whString[0]);
mOpenCvCameraView.setMinimumHeight(height); // 카메라 해상도 관련 처리
mOpenCvCameraView.setMinimumWidth(width);
mOpenCvCameraView.setMaxFrameSize(width,height);
mOpenCvCameraView.disableView();
mOpenCvCameraView.enableView();
listView.setItemChecked(count,true);
Toast.makeText(getApplicationContext(),"설정되었습니다.",Toast.LENGTH_LONG).show();
}
});
dlg.show();
}
if(menuItem.getItemId()==R.id.action_naming){
AlertDialog.Builder noticeDialog = new AlertDialog.Builder(MainActivity.this);
//사용방법 관련
noticeDialog.setTitle("사용 방법");
noticeDialog.setMessage("휴대폰을 가로 방향으로 들고 번호판이 화면에 감지 될 경우 캡쳐됩니다.\n" +
"내장메모리의 CarPlate 폴더 안에 png 파일로 저장됩니다.\n");
noticeDialog.setPositiveButton("확인", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
String id = edtNumber.getText().toString();
studentId = id;
Toast.makeText(getApplicationContext(),studentId,Toast.LENGTH_LONG).show();
}
});
noticeDialog.setView(layout.inputnumber);
noticeDialog.show();
}
return true;
}
@Override
public void onMenuClosed() {
}
});
mOpenCvCameraView.setMinimumHeight(1080); // 카메라 해상도 관련 처리
mOpenCvCameraView.setMinimumWidth(1920);
mOpenCvCameraView.setMaxFrameSize(1920,1080);
mOpenCvCameraView.disableView();
mOpenCvCameraView.enableView();
mOpenCvCameraView.setVisibility(SurfaceView.VISIBLE);
mOpenCvCameraView.setCvCameraViewListener(MainActivity.this);
mOpenCvCameraView.setCameraIndex(0); // front-camera(1), back-camera(0)
mLoaderCallback.onManagerConnected(LoaderCallbackInterface.SUCCESS);
/*
//===================================================================================
// 테스트 위해 파일에서 영상 읽어들임
Bitmap bmp = BitmapFactory.decodeResource(getResources(), drawable.test_image_800);
Log.d(TAG, " bmp read. " + bmp.getHeight() + ", " + bmp.getWidth());
Toast.makeText(this, "bmp:("+bmp.getHeight()+","+bmp.getWidth()+")",Toast.LENGTH_LONG).show();
Bitmap bmp32 = bmp.copy(Bitmap.Config.ARGB_8888, true);
matTemp = new Mat();
Utils.bitmapToMat(bmp32, matTemp);
Log.d(TAG, " bmp2Mat : " + matTemp.rows() + ", " + matTemp.cols());
//==================================================================
*/
Log.d(TAG, "onCreate ends");
}
这种方法是检测车牌。 专注于saveInternalStorage（）
public Mat onCameraFrame(final CameraBridgeViewBase.CvCameraViewFrame inputFrame) {
matInput = inputFrame.rgba();
Log.d(TAG, "onCameraFrame starts. matInput.rows : " + matInput.rows());
if (matResult != null) matResult.release();
matResult = new Mat(matInput.size(), matInput.type());
resultStr = PlateRecogCpp(matInput.getNativeObjAddr(), matResult.getNativeObjAddr());
Log.d(TAG, "onCameraFrame. PlateRecogCpp done. resultStr" + resultStr);
runOnUiThread(new Runnable() {
@Override
public void run() {
if (resultStr.charAt(resultStr.length() - 1) == '*') { //검출 성공 시에
newSecond = Integer.parseInt(new SimpleDateFormat("ss").format(new Date()));
if (prevSecond == null ||Math.abs(newSecond - prevSecond) > 3) {
Bitmap bmp = null;
try {
bmp = Bitmap.createBitmap(matInput.cols(), matInput.rows(), Bitmap.Config.ARGB_8888);
Utils.matToBitmap(matInput, bmp);
saveToInternalStorage(bmp, studentId);
}
catch (CvException e) {
Log.d(TAG, e.getMessage());
}
catch(Exception e){
errorPlayer.start();
Toast.makeText(getApplicationContext(),"용량이 가득찼습니다. 용량을 확보해주세요.", Toast.LENGTH_LONG).show();
Log.e(TAG, e.getMessage());
}
mPlayer.start();
prevSecond = newSecond;
Toast.makeText(getApplicationContext(), "CarPlate에 저장 완료", Toast.LENGTH_LONG).show();
}
// Imgcodecs.imwrite("savedImage.jpg", matInput);
}
}
});
return matResult;
}
它全部......