Develop Reference

Trouble getting order of Image Bitmap layers in Android correct

I have a piece of code that compares to images and places a marker on the difference. So far it works well, except the latest marker layer that is added always shows underneath all the older markers. I have the latest one as a yellow color and the older ones as red. When the difference is close to one of the red markers, the yellow marker shows behind those ones.
Is there anyone that can help me get the yellow (Latest marker) to appear on top?
This is my code so far:
public class CheckmarkActivity extends AppCompatActivity implements ZoomLayout.OnZoomableLayoutClickEventListener {
TextView tv;
RelativeLayout relativeLayout_work;
ImageView imageViewtest;
Bitmap prevBmp = null;
Timer t;
TimerTask task;
int time = 100;
float image_Width;
float image_Height;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_checkmark);
if (getResources().getBoolean(R.bool.is_tablet)) {
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
}
tv = findViewById(R.id.tv);
relativeLayout_work = findViewById(R.id.relativeLayout_work);
imageViewtest = findViewById(R.id.imageViewtest);
prevBmp = ViewcontrollerActivity.workSession.getLastScreenShot();
if (prevBmp == null || ViewcontrollerActivity.workSession.workScreenShot == null) {
setResult(Activity.RESULT_CANCELED);
finish();
}
startTimer();
}
// image compare
class TestAsync extends AsyncTask<Object, Integer, String>
{
String TAG = getClass().getSimpleName();
PointF p;
Bitmap test_3;
protected void onPreExecute (){
super.onPreExecute();
Log.d(TAG + " PreExceute","On pre Exceute......");
}
protected String doInBackground(Object...arg0) {
test_3 = ImageHelper.findDifference(CheckmarkActivity.this, prevBmp, ViewcontrollerActivity.workSession.workScreenShot);
p = ImageHelper.findShot(test_3);
time = 1;
return "You are at PostExecute";
}
protected void onProgressUpdate(Integer...a){
super.onProgressUpdate(a);
}
protected void onPostExecute(String result) {
super.onPostExecute(result);
addImageToImageview();
PointF np = Session.convertPointBitmap2View(p, relativeLayout_work, ViewcontrollerActivity.workSession.workScreenShot);
tv.setX(np.x - tv.getWidth() / 2);
tv.setY(np.y - tv.getHeight() / 2);
tv.setVisibility(View.VISIBLE);
// imageViewtest.setImageBitmap(test_3);
}
}
private BaseLoaderCallback mLoaderCallback = new BaseLoaderCallback(this) {
#Override
public void onManagerConnected(int status) {
switch (status) {
case LoaderCallbackInterface.SUCCESS:
{
Log.i("OpenCV", "OpenCV loaded successfully");
new TestAsync().execute();
} break;
default:
{
super.onManagerConnected(status);
} break;
}
}
};
#Override
protected void onResume() {
super.onResume();
if (!OpenCVLoader.initDebug()) {
Log.d("OpenCV", "Internal OpenCV library not found. Using OpenCV Manager for initialization");
OpenCVLoader.initAsync(OpenCVLoader.OPENCV_VERSION_3_0_0, this, mLoaderCallback);
} else {
Log.d("OpenCV", "OpenCV library found inside package. Using it!");
mLoaderCallback.onManagerConnected(LoaderCallbackInterface.SUCCESS);
}
}
public static int[] getBitmapOffset(ImageView img, Boolean includeLayout) {
int[] offset = new int[2];
float[] values = new float[9];
Matrix m = img.getImageMatrix();
m.getValues(values);
offset[0] = (int) values[5];
offset[1] = (int) values[2];
if (includeLayout) {
ViewGroup.MarginLayoutParams lp = (ViewGroup.MarginLayoutParams) img.getLayoutParams();
int paddingTop = (int) (img.getPaddingTop() );
int paddingLeft = (int) (img.getPaddingLeft() );
offset[0] += paddingTop + lp.topMargin;
offset[1] += paddingLeft + lp.leftMargin;
}
return offset;
}
public static int[] getBitmapPositionInsideImageView(ImageView imageView) {
int[] ret = new int[4];
if (imageView == null || imageView.getDrawable() == null)
return ret;
// Get image dimensions
// Get image matrix values and place them in an array
float[] f = new float[9];
imageView.getImageMatrix().getValues(f);
// Extract the scale values using the constants (if aspect ratio maintained, scaleX == scaleY)
final float scaleX = f[Matrix.MSCALE_X];
final float scaleY = f[Matrix.MSCALE_Y];
// Get the drawable (could also get the bitmap behind the drawable and getWidth/getHeight)
final Drawable d = imageView.getDrawable();
final int origW = d.getIntrinsicWidth();
final int origH = d.getIntrinsicHeight();
// Calculate the actual dimensions
final int actW = Math.round(origW * scaleX);
final int actH = Math.round(origH * scaleY);
ret[2] = actW;
ret[3] = actH;
// Get image position
// We assume that the image is centered into ImageView
int imgViewW = imageView.getWidth();
int imgViewH = imageView.getHeight();
int top = (int) (imgViewH - actH)/2;
int left = (int) (imgViewW - actW)/2;
ret[0] = left;
ret[1] = top;
return ret;
}
private void addImageToImageview(){
if (ViewcontrollerActivity.workSession.workScreenShot != null) {
imageViewtest.setImageBitmap(ViewcontrollerActivity.workSession.workScreenShot);
Log.d("width", String.valueOf(imageViewtest.getWidth()));
}
Resources r = getResources();
float px = TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 20, r.getDisplayMetrics());
for (int i = 0; i < ViewcontrollerActivity.workSession.getShotCount(); i++) {
PointF p = ViewcontrollerActivity.workSession.getPoint(i);
TextView t = new TextView(this);
t.setText("" + (i + 1));
RelativeLayout.LayoutParams param = new RelativeLayout.LayoutParams((int)px, (int)px);
relativeLayout_work.addView(t);
t.setLayoutParams(param);
t.setGravity(Gravity.CENTER);
t.setBackgroundResource(R.drawable.circle);
p = Session.convertPointBitmap2View(p, relativeLayout_work, ViewcontrollerActivity.workSession.workScreenShot);
t.setX(p.x);
t.setY(p.y);
t.setTag(10000 + i);
}
}
public void onConfirm(View v){
View vv = findViewById(R.id.relativeLayout_work);
PointF bp = Session.convertPointView2Bitmap(new PointF(tv.getX(), tv.getY()), relativeLayout_work, ViewcontrollerActivity.workSession.workScreenShot);
ViewcontrollerActivity.workSession.addNewShot(ViewcontrollerActivity.workSession.workScreenShot, bp);
setResult(Activity.RESULT_OK);
finish();
}
public void onCancel(View v){
setResult(Activity.RESULT_CANCELED);
finish();
}
#Override
public void onBackPressed() {
setResult(Activity.RESULT_CANCELED);
finish();
}
#Override
public void OnContentClickEvent(int action, float xR, float yR) {
int[] offset = new int[2];
int[] rect = new int[4];
offset = this.getBitmapOffset(imageViewtest, false);
int original_width = imageViewtest.getDrawable().getIntrinsicWidth();
int original_height = imageViewtest.getDrawable().getIntrinsicHeight();
rect = getBitmapPositionInsideImageView(imageViewtest);
Log.i("OffsetY", String.valueOf(offset[0]));
Log.i("OffsetX", String.valueOf(offset[1]));
Log.i( "0", String.valueOf(rect[0]));
Log.i( "1", String.valueOf(rect[1]));
Log.i( "2", String.valueOf(rect[2]));
Log.i( "3", String.valueOf(rect[3]));
if (xR > rect[0] && xR < rect[0] + rect[2] && yR > rect[1] && yR < rect[1] + rect[3]) {
tv.setX(xR - tv.getWidth() / 2);
tv.setY(yR - tv.getHeight() / 2);
}
// tv.setX(xR - tv.getWidth() / 2);
// tv.setY(yR - tv.getHeight() / 2);
}
public void onMoveButtonPressed(View v) {
ImageButton b = (ImageButton)v;
int mId = b.getId();
switch (mId) {
case R.id.imageButtonL:
tv.setX(tv.getX() - 1);
break;
case R.id.imageButtonR:
tv.setX(tv.getX() + 1);
break;
case R.id.imageButtonD:
tv.setY(tv.getY() + 1);
break;
case R.id.imageButtonU:
tv.setY(tv.getY() - 1);
break;
}
}
//timer change image
public void startTimer(){
t = new Timer();
task = new TimerTask() {
#Override
public void run() {
runOnUiThread(new Runnable() {
#Override
public void run() {
if (time == 1){
imageViewtest.setImageBitmap(ViewcontrollerActivity.workSession.workScreenShot);
// tv.setVisibility(View.VISIBLE);
tv.setText("" + (ViewcontrollerActivity.workSession.getShotCount() + 1));
t.cancel();
return;
}
if (time % 2 == 0) {
imageViewtest.setImageBitmap(prevBmp);
}
else if(time % 2 == 1){
imageViewtest.setImageBitmap(ViewcontrollerActivity.workSession.workScreenShot);
}
time --;
}
});
}
};
t.scheduleAtFixedRate(task, 0, 500);
}
}

You can give the z-order of the child view with addView() function.
void addView (View child, int index)
ex)
private void addImageToImageview(){
if (ViewcontrollerActivity.workSession.workScreenShot != null) {
imageViewtest.setImageBitmap(ViewcontrollerActivity.workSession.workScreenShot);
Log.d("width", String.valueOf(imageViewtest.getWidth()));
}
Resources r = getResources();
float px = TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 20, r.getDisplayMetrics());
int currChildrenCount = relativeLayout_work.getChildCount();
for (int i = 0; i < ViewcontrollerActivity.workSession.getShotCount(); i++) {
PointF p = ViewcontrollerActivity.workSession.getPoint(i);
TextView t = new TextView(this);
t.setText("" + (i + 1));
RelativeLayout.LayoutParams param = new RelativeLayout.LayoutParams((int)px, (int)px);
relativeLayout_work.addView(t, currChildrenCount+i); // You can control the order like this
t.setLayoutParams(param);
t.setGravity(Gravity.CENTER);
t.setBackgroundResource(R.drawable.circle);
p = Session.convertPointBitmap2View(p, relativeLayout_work, ViewcontrollerActivity.workSession.workScreenShot);
t.setX(p.x);
t.setY(p.y);
t.setTag(10000 + i);
}
}

(Android/Tensorflow) Activity crashes when opening CameraActivity

I am creating an Android image classification application using Tensorflow. When I tried to run the CameraActivity.java, the activity crashes. I have refered to this link to develop my app https://github.com/MindorksOpenSource/AndroidTensorFlowMachineLearningExample. I am not sure what is wrong, so may i know how should I solve this issue?
Logcat error: Could not load vendor/lib/egl/libGLES_mali_v2.so from sphal namespace: dlopen failed: library "vendor/lib/egl/libGLES_mali_v2.so" not found.
Debug Error:
FATAL EXCEPTION: pool-1-thread-1
Process: com.example.nicholas.herb_recognition_test, PID: 15136
java.lang.RuntimeException: Error initializing TensorFlow!
at CameraActivity$5.run(CameraActivity.java:122)
Debug Error Line : classifier = TensorFlowImageClassifier.create
Error: java.util.concurrent.ThreadPoolExecutor.runWorker
CameraActivity.java
public class CameraActivity extends AppCompatActivity {
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_camera);
cameraView = (CameraView) findViewById(R.id.cameraView);
imageViewResult = (ImageView) findViewById(R.id.imageViewResult);
textViewResult = (TextView) findViewById(R.id.textViewResult);
textViewResult.setMovementMethod(new ScrollingMovementMethod());
btnToggleCamera = (Button) findViewById(R.id.btnToggleCamera);
btnDetectObject = (Button) findViewById(R.id.btnDetectObject);
cameraView.setCameraListener(new CameraListener() {
#Override
public void onPictureTaken(byte[] picture) {
super.onPictureTaken(picture);
Bitmap bitmap = BitmapFactory.decodeByteArray(picture, 0, picture.length);
bitmap = Bitmap.createScaledBitmap(bitmap, INPUT_SIZE, INPUT_SIZE, false);
imageViewResult.setImageBitmap(bitmap);
final List<Classifier.Recognition> results = classifier.recognizeImage(bitmap);
textViewResult.setText(results.toString());
}
});
btnToggleCamera.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
cameraView.toggleFacing();
}
});
btnDetectObject.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
cameraView.captureImage();
}
});
initTensorFlowAndLoadModel();
}
private void initTensorFlowAndLoadModel() {
executor.execute(new Runnable() {
#Override
public void run() {
try {
classifier = TensorFlowImageClassifier.create(
getAssets(),
MODEL_FILE,
LABEL_FILE,
INPUT_SIZE,
IMAGE_MEAN,
IMAGE_STD,
INPUT_NAME,
OUTPUT_NAME);
makeButtonVisible();
} catch (final Exception e) {
throw new RuntimeException("Error initializing TensorFlow!", e);
}
}
});
}
}
TensorFlowImageClassifier.java
public class TensorFlowImageClassifier implements Classifier {
public static Classifier create(
AssetManager assetManager,
String modelFilename,
String labelFilename,
int inputSize,
int imageMean,
float imageStd,
String inputName,
String outputName)
throws IOException {
TensorFlowImageClassifier c = new TensorFlowImageClassifier();
c.inputName = inputName;
c.outputName = outputName;
// Read the label names into memory.
// TODO(andrewharp): make this handle non-assets.
String actualFilename = labelFilename.split("file:///android_asset/")[1];
Log.i(TAG, "Reading labels from: " + actualFilename);
BufferedReader br = null;
br = new BufferedReader(new InputStreamReader(assetManager.open(actualFilename)));
String line;
while ((line = br.readLine()) != null) {
c.labels.add(line);
}
br.close();
c.inferenceInterface = new TensorFlowInferenceInterface();
if (c.inferenceInterface.initializeTensorFlow(assetManager, modelFilename) != 0) {
throw new RuntimeException("TF initialization failed");
}
// The shape of the output is [N, NUM_CLASSES], where N is the batch size.
int numClasses =
(int) c.inferenceInterface.graph().operation(outputName).output(0).shape().size(1);
Log.i(TAG, "Read " + c.labels.size() + " labels, output layer size is " + numClasses);
// Ideally, inputSize could have been retrieved from the shape of the input operation. Alas,
// the placeholder node for input in the graphdef typically used does not specify a shape, so it
// must be passed in as a parameter.
c.inputSize = inputSize;
c.imageMean = imageMean;
c.imageStd = imageStd;
// Pre-allocate buffers.
c.outputNames = new String[]{outputName};
c.intValues = new int[inputSize * inputSize];
c.floatValues = new float[inputSize * inputSize * 3];
c.outputs = new float[numClasses];
return c;
}
#Override
public List<Recognition> recognizeImage(final Bitmap bitmap) {
// Log this method so that it can be analyzed with systrace.
Trace.beginSection("recognizeImage");
Trace.beginSection("preprocessBitmap");
// Preprocess the image data from 0-255 int to normalized float based
// on the provided parameters.
bitmap.getPixels(intValues, 0, bitmap.getWidth(), 0, 0, bitmap.getWidth(), bitmap.getHeight());
for (int i = 0; i < intValues.length; ++i) {
final int val = intValues[i];
floatValues[i * 3 + 0] = (((val >> 16) & 0xFF) - imageMean) / imageStd;
floatValues[i * 3 + 1] = (((val >> 8) & 0xFF) - imageMean) / imageStd;
floatValues[i * 3 + 2] = ((val & 0xFF) - imageMean) / imageStd;
}
Trace.endSection();
// Copy the input data into TensorFlow.
Trace.beginSection("fillNodeFloat");
inferenceInterface.fillNodeFloat(
inputName, new int[]{1, inputSize, inputSize, 3}, floatValues);
Trace.endSection();
// Run the inference call.
Trace.beginSection("runInference");
inferenceInterface.runInference(outputNames);
Trace.endSection();
// Copy the output Tensor back into the output array.
Trace.beginSection("readNodeFloat");
inferenceInterface.readNodeFloat(outputName, outputs);
Trace.endSection();
// Find the best classifications.
PriorityQueue<Recognition> pq =
new PriorityQueue<Recognition>(
3,
new Comparator<Recognition>() {
#Override
public int compare(Recognition lhs, Recognition rhs) {
// Intentionally reversed to put high confidence at the head of the queue.
return Float.compare(rhs.getConfidence(), lhs.getConfidence());
}
});
for (int i = 0; i < outputs.length; ++i) {
if (outputs[i] > THRESHOLD) {
pq.add(
new Recognition(
"" + i, labels.size() > i ? labels.get(i) : "unknown", outputs[i], null));
}
}
final ArrayList<Recognition> recognitions = new ArrayList<Recognition>();
int recognitionsSize = Math.min(pq.size(), MAX_RESULTS);
for (int i = 0; i < recognitionsSize; ++i) {
recognitions.add(pq.poll());
}
Trace.endSection(); // "recognizeImage"
return recognitions;
}
#Override
public void enableStatLogging(boolean debug) {
inferenceInterface.enableStatLogging(debug);
}
#Override
public String getStatString() {
return inferenceInterface.getStatString();
}
#Override
public void close() {
inferenceInterface.close();
}
}

It seems that there are some compatibility issues of my model file with the architecture model implemented in the TensorFlowImageClassifier.java.

just change the INPUT_NAME and OUTPUT_NAME to:
private static final String INPUT_NAME = "Mul";
private static final String OUTPUT_NAME = "final_result";
It worked for me

Cannot set value to textview in runonuithread

public class PerformanceDashboard extends MotherActivity {
String dashboardData;
int SELECTED_PAGE, SEARCH_TYPE, TRAY_TYPE;
List<String[]> cachedCounterUpdates = new ArrayList<String[]>();
List<DasDetails> docList = new ArrayList<DasDetails>();
ListView listViewDashboard;
DataAdapter dataAdap = new DataAdapter();
TextView noOfItems, userCount, totalLoginTime;
int itemsTotal = 0, userTotal = 0, totalTime = 0;
String KEYWORD = "";
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if (App.isTestVersion) {
Log.e("actName", "StoreOut");
}
if (bgVariableIsNull()) {
this.finish();
return;
}
setContentView(R.layout.dashboard);
getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
setProgressBarIndeterminateVisibility(false);
lytBlocker = (LinearLayout) findViewById(R.id.lyt_blocker);
listViewDashboard = (ListView) findViewById(R.id.dashboard_listview);
noOfItems = ((TextView) findViewById(R.id.noOfItems));
userCount = ((TextView) findViewById(R.id.userCount));
totalLoginTime = ((TextView) findViewById(R.id.totalLoginTime));
new DataLoader().start();
listViewDashboard.setAdapter(dataAdap);
System.out.println("PerformanceDashboard. onCreate processOutData() -- item total " + itemsTotal); //0 i am not getting that adapter value i.e. 6
System.out.println("PerformanceDashboard. onCreate processOutData() -- user total " + userTotal); //0 i am not getting that adapter value i.e. 4
System.out.println("PerformanceDashboard. onCreate processOutData() -- total total " + totalTime); //0 i am not getting that adapter value i.e. 310
}
private class DataAdapter extends BaseAdapter {
#Override
public int getCount() {
return docList.size();
}
#Override
public Object getItem(int position) {
return null;
}
#Override
public long getItemId(int position) {
return 0;
}
#Override
public View getView(final int position, View convertView,
ViewGroup parent) {
LayoutInflater li = getLayoutInflater();
if (convertView == null)
convertView = li.inflate(R.layout.dashboard_item, null);
final DasDetails item = docList.get(position);
((TextView) convertView.findViewById(R.id.cMode))
.setText(item.cMode);
((TextView) convertView.findViewById(R.id.noOfItems))
.setText(item.totPickItemCount);
((TextView) convertView.findViewById(R.id.userCount))
.setText(item.userCount);
((TextView) convertView.findViewById(R.id.totalLoginTime))
.setText(item.totLoginTime);
TextView textView = ((TextView) convertView
.findViewById(R.id.avgSpeed));
Double s = Double.parseDouble(item.avgPickingSpeed);
textView.setText(String.format("%.2f", s));
if (position == 0 || position == 2 || position == 4) {
convertView.setBackgroundColor(getResources().getColor(
R.color.hot_pink));
} else if (position == 1 || position == 3 || position == 5) {
convertView.setBackgroundColor(getResources().getColor(
R.color.lightblue));
}
return convertView;
}
}
class ErrorItem {
String cMode, dDate, userCount, totLoginTime, totPickItemCount,
avgPickingSpeed;
public ErrorItem(HashMap<String, String> row) {
cMode = row.get(XT.MODE);
dDate = row.get(XT.DATE);
userCount = row.get(XT.USER_COUNT);
totLoginTime = row.get(XT.TOT_LOGIN_TIME);
totPickItemCount = row.get(XT.TOT_PICK_ITEM_COUNT);
avgPickingSpeed = row.get(XT.AVG_PICKING_SPEED);
}
}
private class DataLoader extends Thread {
#Override
public void run() {
super.run();
System.out.println("DataLoader dashboard");
List<NameValuePair> param = new ArrayList<NameValuePair>();
param.add(new BasicNameValuePair(C.PRM_IDX, C.GET_SUMMARY));
param.add(new BasicNameValuePair(C.PRM_HDR_DATA, "2016-07-04")); // yyyy-mm-dd
toggleProgressNoUINoBlock(true);
final String result = callService(C.WS_ST_PERFORMANCE_DASHBOARD,
param);
if (!App.validateXmlResult(actContext, null, result, true))
return;
runOnUiThread(new Runnable() {
#Override
public void run() {
Runnable r = new Runnable() {
#Override
public void run() {
dataAdap.notifyDataSetChanged();
toggleProgressNoUINoBlock(false);
}
};
dashboardData = result;
processOutData(r);
}
});
}
}
private String callService(String serviceName, List<NameValuePair> params) {
String result = ws.callService(serviceName, params);
return result;
}
private void processOutData(final Runnable rAfterProcessing) {
if (dashboardData == null || dashboardData.length() == 0)
return;
new Thread() {
#Override
public void run() {
super.run();
final List<HashMap<String, String>> dataList = XMLfunctions
.getDataList(dashboardData, new String[] { XT.MODE,
XT.DATE, XT.USER_COUNT, XT.TOT_LOGIN_TIME,
XT.TOT_PICK_ITEM_COUNT, XT.AVG_PICKING_SPEED });
final List<DasDetails> tempList = new ArrayList<DasDetails>();
for (int i = 0; i < dataList.size(); i++) {
int pos = docExists(tempList, dataList.get(i).get(XT.MODE));
if (pos == -1) {
if (SEARCH_TYPE == 0
|| KEYWORD.equals("")
|| (SEARCH_TYPE == 1 && dataList.get(i)
.get(XT.CUST_NAME).contains(KEYWORD))
|| (SEARCH_TYPE == 2 && dataList.get(i)
.get(XT.DOC_NO).contains(KEYWORD))) {
DasDetails doc = new DasDetails(dataList.get(i));
int cachePos = getPosInCachedCounterUpdates(doc.cMode);
if (cachePos != -1) {
if (cachedCounterUpdates.get(cachePos)[1]
.equals(doc.dDate))
cachedCounterUpdates.remove(cachePos);
else
doc.dDate = cachedCounterUpdates
.get(cachePos)[1];
}
tempList.add(doc);
pos = tempList.size() - 1;
}
}
if (pos == -1)
continue;
}
runOnUiThread(new Runnable() {
#Override
public void run() {
docList = tempList;
rAfterProcessing.run();
logit("processOutData", "Processing OVER");
}
});
for (int i = 0; i < docList.size(); i++) {
itemsTotal = itemsTotal+ Integer.parseInt(docList.get(i).totPickItemCount);
userTotal = userTotal + Integer.parseInt(docList.get(i).userCount);
totalTime = totalTime + Integer.parseInt(docList.get(i).totLoginTime);
}
System.out.println("PerformanceDashboard.processOutData() -- fINAL item TOTAL " + itemsTotal); // 6 i have data here but i need this data in my oncreate but not getting why?????
System.out.println("PerformanceDashboard.processOutData() -- userTotal TOTAL " + userTotal); //4
System.out.println("PerformanceDashboard.processOutData() -- totalTime TOTAL " + totalTime); //310
noOfItems.setText(itemsTotal); // crashing with null pointer exception
// userCount.setText(userTotal);
// totalLoginTime.setText(totalTime);
};
}.start();
}
private class DasDetails {
public String cMode, dDate, userCount, totLoginTime, totPickItemCount,
avgPickingSpeed;
public DasDetails(HashMap<String, String> data) {
cMode = data.get(XT.MODE);
dDate = data.get(XT.DATE);
userCount = data.get(XT.USER_COUNT);
totLoginTime = data.get(XT.TOT_LOGIN_TIME);
totPickItemCount = data.get(XT.TOT_PICK_ITEM_COUNT);
avgPickingSpeed = data.get(XT.AVG_PICKING_SPEED);
}
}
public Integer docExists(List<DasDetails> list, String docNo) {
for (int i = 0; i < list.size(); i++) {
if (list.get(i).cMode.equals(docNo))
return i;
}
return -1;
}
private int getPosInCachedCounterUpdates(String docNo) {
for (int i = 0; i < cachedCounterUpdates.size(); i++) {
if (cachedCounterUpdates.get(i)[0].equals(docNo))
return i;
}
return -1;
}
}
This is the above code please go through it and let me know if any clarifications are required. I cannot able to set "itemsTotal" value to "noOfIttems" textview. I have added the comments. Please help me in solving this issue.
Thanks in advance.

Please check your noOfItems textView's id. TextView is null.

Stuck at getting array from another thread

I have a small, but very strange problem...
I need to read fragments from file and place them into array, which is out of reading thread, but when i wants to get them from current thread, i'm getting empty arrray.
My brain crashed at this stuff:
private int fragmentSize = 262144, fragmentCacheElements = 32, fragmentCacheUpdates = 0;
// Cache 8Mb (265Kb*32)(262144*32)
private String[] fragmentCache;
private boolean needCacheUpdate, end;
private Thread cacheThread = new Thread(new Runnable()
{
String[] fCache = new String[fragmentCacheElements];
#Override
public void run()
{
while (!end) {
for (int i = 0; i < fragmentCacheElements; ++i) {
fCache[i] = new String(loadFragment(i + fragmentCacheUpdates * fragmentCacheElements));
}
while (true) {
if (needCacheUpdate) {
++fragmentCacheUpdates;
fragmentCache = fCache;
// fragment[0] != null
needCacheUpdate = false;
break;
}
}
}
}
});
public static void main(String[] args)
{
fragmentCache = new String[fragmentCacheElements];
cacheThread.start();
updateCache();
// Notifying client
}
// Getting fragment from cache to send it to client
// AND WHY fragment[0] == null ???
private String getCache(int id)
{
if (id >= fragmentCacheUpdates * fragmentCacheElements) {
updateCache();
}
return fragmentCache[id - (fragmentCacheUpdates - 1) * fragmentCacheElements];
}
private void updateCache()
{
needCacheUpdate = true;
while (true) {
if (!needCacheUpdate) {
break;
}
}
}
Any suggestions?

Try
fragmentCache = Arrays.copyOf(fCache, fCache.length);

How to decode JSON data sent to server by TripTracker?

I am using a PHP MySQL server model. I want to decode the JSON data that is sent to the server by this code. Any help would be appreciated. The app sends current GPS coordinates to inputed server as JSON array object. I would like to decode it to share with other android users. Thanks a lot. This is the Android code.
public class TrackerService extends Service {
private static final String TAG = "TripTracker/Service";
private final String updatesCache = "updates.cache";
public static TrackerService service;
private NotificationManager nm;
private Notification notification;
private static boolean isRunning = false;
private String freqString;
private int freqSeconds;
private String endpoint;
private final int MAX_RING_SIZE = 15;
private LocationListener locationListener;
private AlarmManager alarmManager;
private PendingIntent pendingAlarm;
private static volatile PowerManager.WakeLock wakeLock;
private AsyncTask httpPoster;
ArrayList<LogMessage> mLogRing = new ArrayList<LogMessage>();
ArrayList<Messenger> mClients = new ArrayList<Messenger>();
ArrayList<List> mUpdates = new ArrayList<List>();
final ReentrantReadWriteLock updateLock = new ReentrantReadWriteLock();
final Messenger mMessenger = new Messenger(new IncomingHandler());
static final int MSG_REGISTER_CLIENT = 1;
static final int MSG_UNREGISTER_CLIENT = 2;
static final int MSG_LOG = 3;
static final int MSG_LOG_RING = 4;
#Override
public IBinder onBind(Intent intent) {
return mMessenger.getBinder();
}
#Override
public void onCreate() {
super.onCreate();
TrackerService.service = this;
endpoint = Prefs.getEndpoint(this);
freqSeconds = 0;
freqString = null;
freqString = Prefs.getUpdateFreq(this);
if (freqString != null && !freqString.equals("")) {
try {
Pattern p = Pattern.compile("(\\d+)(m|h|s)");
Matcher m = p.matcher(freqString);
m.find();
freqSeconds = Integer.parseInt(m.group(1));
if (m.group(2).equals("h"))
freqSeconds *= (60 * 60);
else if (m.group(2).equals("m"))
freqSeconds *= 60;
}
catch (Exception e) {
}
}
if (endpoint == null || endpoint.equals("")) {
logText("invalid endpoint, stopping service");
stopSelf();
}
if (freqSeconds < 1) {
logText("invalid frequency (" + freqSeconds + "), stopping " +
"service");
stopSelf();
}
readCache();
showNotification();
isRunning = true;
/* we're not registered yet, so this will just log to our ring buffer,
* but as soon as the client connects we send the log buffer anyway */
logText("service started, requesting location update every " +
freqString);
/* findAndSendLocation() will callback to this */
locationListener = new LocationListener() {
public void onLocationChanged(Location location) {
sendLocation(location);
}
public void onStatusChanged(String provider, int status,
Bundle extras) {
}
public void onProviderEnabled(String provider) {
}
public void onProviderDisabled(String provider) {
}
};
/* we don't need to be exact in our frequency, try to conserve at least
* a little battery */
alarmManager = (AlarmManager)getSystemService(ALARM_SERVICE);
Intent i = new Intent(this, AlarmBroadcast.class);
pendingAlarm = PendingIntent.getBroadcast(this, 0, i, 0);
alarmManager.setInexactRepeating(AlarmManager.ELAPSED_REALTIME_WAKEUP,
SystemClock.elapsedRealtime(), freqSeconds * 1000, pendingAlarm);
}
#Override
public void onDestroy() {
super.onDestroy();
if (httpPoster != null)
httpPoster.cancel(true);
try {
LocationManager locationManager = (LocationManager)
this.getSystemService(Context.LOCATION_SERVICE);
locationManager.removeUpdates(locationListener);
}
catch (Exception e) {
}
/* kill persistent notification */
nm.cancelAll();
if (pendingAlarm != null)
alarmManager.cancel(pendingAlarm);
isRunning = false;
}
#Override
public int onStartCommand(Intent intent, int flags, int startId) {
return START_STICKY;
}
/* must be done inside of updateLock */
public void cacheUpdates() {
OutputStreamWriter cacheStream = null;
try {
FileOutputStream cacheFile = TrackerService.this.openFileOutput(
updatesCache, Activity.MODE_PRIVATE);
cacheStream = new OutputStreamWriter(cacheFile, "UTF-8");
/* would be nice to just serialize mUpdates but it's not
* serializable. create a json array of json objects, each object
* having each key/value pair of one location update. */
JSONArray ja = new JSONArray();
for (int i = 0; i < mUpdates.size(); i++) {
List<NameValuePair> pair = mUpdates.get(i);
JSONObject jo = new JSONObject();
for (int j = 0; j < pair.size(); j++) {
try {
jo.put(((NameValuePair)pair.get(j)).getName(),
pair.get(j).getValue());
}
catch (JSONException e) {
}
}
ja.put(jo);
}
cacheStream.write(ja.toString());
cacheFile.getFD().sync();
}
catch (IOException e) {
Log.w(TAG, e);
}
finally {
if (cacheStream != null) {
try {
cacheStream.close();
}
catch (IOException e) {
}
}
}
}
/* read json cache into mUpdates */
public void readCache() {
updateLock.writeLock().lock();
InputStreamReader cacheStream = null;
try {
FileInputStream cacheFile = TrackerService.this.openFileInput(
updatesCache);
StringBuffer buf = new StringBuffer("");
byte[] bbuf = new byte[1024];
int len;
while ((len = cacheFile.read(bbuf)) != -1)
buf.append(new String(bbuf));
JSONArray ja = new JSONArray(new String(buf));
mUpdates = new ArrayList<List>();
for (int j = 0; j < ja.length(); j++) {
JSONObject jo = ja.getJSONObject(j);
List<NameValuePair> nvp = new ArrayList<NameValuePair>(2);
Iterator<String> i = jo.keys();
while (i.hasNext()) {
String k = (String)i.next();
String v = jo.getString(k);
nvp.add(new BasicNameValuePair(k, v));
}
mUpdates.add(nvp);
}
if (mUpdates.size() > 0)
logText("read " + mUpdates.size() + " update" +
(mUpdates.size() == 1 ? "" : "s") + " from cache");
}
catch (JSONException e) {
}
catch (FileNotFoundException e) {
}
catch (IOException e) {
Log.w(TAG, e);
}
finally {
if (cacheStream != null) {
try {
cacheStream.close();
}
catch (IOException e) {
}
}
}
updateLock.writeLock().unlock();
}
/* called within wake lock from broadcast receiver, but assert that we have
* it so we can keep it longer when we return (since the location request
* uses a callback) and then free it when we're done running through the
* queue */
public void findAndSendLocation() {
if (wakeLock == null) {
PowerManager pm = (PowerManager)this.getSystemService(
Context.POWER_SERVICE);
/* we don't need the screen on */
wakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK,
"triptracker");
wakeLock.setReferenceCounted(true);
}
if (!wakeLock.isHeld())
wakeLock.acquire();
LocationManager locationManager = (LocationManager)
this.getSystemService(Context.LOCATION_SERVICE);
locationManager.requestSingleUpdate(LocationManager.GPS_PROVIDER,
locationListener, null);
}
public static boolean isRunning() {
return isRunning;
}
private void showNotification() {
nm = (NotificationManager)getSystemService(NOTIFICATION_SERVICE);
notification = new Notification(R.drawable.icon,
"Trip Tracker Started", System.currentTimeMillis());
PendingIntent contentIntent = PendingIntent.getActivity(this, 0,
new Intent(this, MainActivity.class), 0);
notification.setLatestEventInfo(this, "Trip Tracker",
"Sending location every " + freqString, contentIntent);
notification.flags = Notification.FLAG_ONGOING_EVENT;
nm.notify(1, notification);
}
private void updateNotification(String text) {
if (nm != null) {
PendingIntent contentIntent = PendingIntent.getActivity(this, 0,
new Intent(this, MainActivity.class), 0);
notification.setLatestEventInfo(this, "Trip Tracker", text,
contentIntent);
notification.when = System.currentTimeMillis();
nm.notify(1, notification);
}
}
public void logText(String log) {
LogMessage lm = new LogMessage(new Date(), log);
mLogRing.add(lm);
if (mLogRing.size() > MAX_RING_SIZE)
mLogRing.remove(0);
updateNotification(log);
for (int i = mClients.size() - 1; i >= 0; i--) {
try {
Bundle b = new Bundle();
b.putString("log", log);
Message msg = Message.obtain(null, MSG_LOG);
msg.setData(b);
mClients.get(i).send(msg);
}
catch (RemoteException e) {
/* client is dead, how did this happen */
mClients.remove(i);
}
}
}
/* flatten an array of NameValuePairs into an array of
* locations[0]latitude, locations[1]latitude, etc. */
public List<NameValuePair> getUpdatesAsArray() {
List<NameValuePair> pairs = new ArrayList<NameValuePair>(2);
for (int i = 0; i < mUpdates.size(); i++) {
List<NameValuePair> pair = mUpdates.get(i);
for (int j = 0; j < pair.size(); j++)
pairs.add(new BasicNameValuePair("locations[" + i + "][" +
((NameValuePair)pair.get(j)).getName() + "]",
pair.get(j).getValue()));
}
return pairs;
}
public int getUpdatesSize() {
return mUpdates.size();
}
public void removeUpdate(int i) {
mUpdates.remove(i);
}
private void sendLocation(Location location) {
List<NameValuePair> pairs = new ArrayList<NameValuePair>(2);
pairs.add(new BasicNameValuePair("time",
String.valueOf(location.getTime())));
pairs.add(new BasicNameValuePair("latitude",
String.valueOf(location.getLatitude())));
pairs.add(new BasicNameValuePair("longitude",
String.valueOf(location.getLongitude())));
pairs.add(new BasicNameValuePair("speed",
String.valueOf(location.getSpeed())));
/* push these pairs onto the queue, and only run the poster if another
* one isn't running already (if it is, it will keep running through
* the queue until it's empty) */
updateLock.writeLock().lock();
mUpdates.add(pairs);
int size = service.getUpdatesSize();
cacheUpdates();
updateLock.writeLock().unlock();
logText("location " +
(new DecimalFormat("#.######").format(location.getLatitude())) +
", " +
(new DecimalFormat("#.######").format(location.getLongitude())) +
(size <= 1 ? "" : " (" + size + " queued)"));
if (httpPoster == null ||
httpPoster.getStatus() == AsyncTask.Status.FINISHED)
(httpPoster = new HttpPoster()).execute();
}
class IncomingHandler extends Handler {
#Override
public void handleMessage(Message msg) {
switch (msg.what) {
case MSG_REGISTER_CLIENT:
mClients.add(msg.replyTo);
/* respond with our log ring to show what we've been up to */
try {
Message replyMsg = Message.obtain(null, MSG_LOG_RING);
replyMsg.obj = mLogRing;
msg.replyTo.send(replyMsg);
}
catch (RemoteException e) {
}
break;
case MSG_UNREGISTER_CLIENT:
mClients.remove(msg.replyTo);
break;
default:
super.handleMessage(msg);
}
}
}
/* Void as first arg causes a crash, no idea why
E/AndroidRuntime(17157): Caused by: java.lang.ClassCastException: java.lang.Object[] cannot be cast to java.lang.Void[]
*/
class HttpPoster extends AsyncTask<Object, Void, Boolean> {
#Override
protected Boolean doInBackground(Object... o) {
TrackerService service = TrackerService.service;
int retried = 0;
int max_retries = 4;
while (true) {
if (isCancelled())
return false;
boolean failed = false;
updateLock.writeLock().lock();
List<NameValuePair> pairs = service.getUpdatesAsArray();
int pairSize = service.getUpdatesSize();
updateLock.writeLock().unlock();
AndroidHttpClient httpClient =
AndroidHttpClient.newInstance("TripTracker");
try {
HttpPost post = new HttpPost(endpoint);
post.setEntity(new UrlEncodedFormEntity(pairs));
HttpResponse resp = httpClient.execute(post);
int httpStatus = resp.getStatusLine().getStatusCode();
if (httpStatus == 200) {
/* all good, we can remove everything we've sent from
* the queue (but not just clear it, in case another
* one jumped onto the end while we were here) */
updateLock.writeLock().lock();
for (int i = pairSize - 1; i >= 0; i--)
service.removeUpdate(i);
updateLock.writeLock().unlock();
}
else {
logText("POST failed to " + endpoint + ": got " +
httpStatus + " status");
failed = true;
}
}
catch (Exception e) {
logText("POST failed to " + endpoint + ": " + e);
Log.w(TAG, e);
failed = true;
}
finally {
if (httpClient != null)
httpClient.close();
}
if (failed) {
/* if our initial request failed, snooze for a bit and try
* again, the server might not be reachable */
SystemClock.sleep(15 * 1000);
if (++retried > max_retries) {
/* give up since we're holding the wake lock open for
* too long. we'll get it next time, champ. */
logText("too many failures, retrying later (queue " +
"size " + service.getUpdatesSize() + ")");
break;
}
}
else
retried = 0;
int q = 0;
updateLock.writeLock().lock();
q = service.getUpdatesSize();
cacheUpdates();
updateLock.writeLock().unlock();
if (q == 0)
break;
/* otherwise, run through the rest of the queue */
}
return false;
}
protected void onPostExecute(Boolean b) {
if (wakeLock != null && wakeLock.isHeld())
wakeLock.release();
}
}
}

You can decode the data using json_decode()
<?php
$json = ""; // JSON data
$json_obj = json_decode($json); // As Object
$json_arr = json_decide($json,true) // As Array
var_dump($json_obj);
print_r($json_arr);
// Store Array to database using serialize function
$data = serialize($json_array); // Array will be converted into string
?>