I tried to implement a loading circle in my application as it transitioned from the previous activity to this activity. As there are a ton of calculations in this activity, it turns black screen as it's doing the calculations for a good 10 to 15 seconds, once the calculations are done it'd display an image, seen in onCreate: resultImage.setImageBitmap(finalBitmap);
However, the circle doesn't appear, and it's still the same old black screen to image transition.
Imported:
import android.app.ProgressDialog;
Declared:
private ProgressDialog progressDialog;
Initialized:
progressDialog = new ProgressDialog(this);
progressDialog.setTitle(null);
progressDialog.setCancelable(false);
Made it visible:
progressDialog.show();
Changed its message as the code progressed:
progressDialog.setMessage("Finding Objects...");
progressDialog.setMessage("Calculating Areas...");
progressDialog.setMessage("Calculating Height...");
... etc etc
onCreate:
@Override
public void onCreate(Bundle savedInstanceState) {
progressDialog = new ProgressDialog(this);
progressDialog.setTitle(null);
progressDialog.setCancelable(false);
progressDialog.setMessage("Processing...");
progressDialog.show();
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_auto_test);
if (!OpenCVLoader.initDebug()) {
Log.d("opencv", "OpenCVLoader.initDebug() - ERROR");
} else {
Log.d("opencv", "OpenCVLoader.initDebug() - OK");
}
String filePath = getIntent().getStringExtra(FILEPATH);
ArrayList<String> f = new ArrayList<String>();
File dir = new File(filePath);
File[] listFile;
listFile = dir.listFiles();
for (File e : listFile) {
f.add(e.getAbsolutePath());
}
paths = f;
resetVariables();
progressDialog.setMessage("Finding Objects...");
for (int xx = 0; xx < paths.size(); xx++) {
Bitmap areaBitmap = BitmapFactory.decodeFile(paths.get(xx));
getArea(areaBitmap);
}
if (loopCounter > 0) {
progressDialog.setMessage("Calculating Areas...");
meanBlackArea = blackArea / loopCounter;
Log.e("meanBlackArea", "30% of mean black " + String.valueOf(meanBlackArea * 0.3) + " 110% of mean black " + String.valueOf(meanBlackArea * 1.1));
Log.e("Loopcounter", String.valueOf(loopCounter));
}
resetVariables();
Log.e("~", "~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~");
Log.e("Lowest Green", String.valueOf(greenArea));
Log.e("~", "~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~");
progressDialog.setMessage("Calculating Height...");
int frameNumber = 0;
for (int x = 0; x < paths.size(); x++) {
Bitmap calculationsBitmap = BitmapFactory.decodeFile(paths.get(x));
numRectBlack = 0;
numRectGreen = 0;
tempBitmap = findCombineBitmap(calculationsBitmap);
if (check == true) {
if (Double.isInfinite(tempLineHeightCm) == false) {
frameNumber = x;
finalBitmap = tempBitmap;
}
}
}
progressDialog.setMessage("Tidying Up...");
TextView tvR = (TextView) findViewById(R.id.tvR);
if(tempLineHeightCm==0) {
tvR.setText("We could not detect a bounce!\nPlease do the following and try again:\n1. Remove all foreign objects from testing grounds.\n2.Make sure that there are ample lighting on the testing grounds.");
}else{
tvR.setText("Frame " + frameNumber + ", Bounce Height = " + tempLineHeightCm + "cm");
ImageView resultImage = (ImageView) findViewById(R.id.resultImage);
resultImage.setImageBitmap(finalBitmap);
progressDialog.dismiss();
}
}
Link to code file:
Notes:
- MainActivity.java has a working progresscircle
- TestAutoRun.java is the one I'm working on.
