Akshin Alekperov

I have an application with a Navigation Drawer that has 6 fragments. The first fragment is the MainFragment. MainFragment has 4 fragments. In the MainActivity, an AsyncTask(MyTask) is set up which changes the text in the OneFragment(Common) and in the ThirdFragment(Internal) of MainFragment. My question is: this AsyncTask can not change tex on TextView on this tabs(Common and Internal). How to fix it. What I did: changing text on TextView works if the Common(FragmentOne) tab is activated with method TabLayout.getTabAt(0).select () and the Internal(FragmentThree) tab with tabLayout.getTabAt(2).select(). But this is not acceptable. I do not know of other ways. How to do this without tabLayout.getTabAt(0).select() and tabLayout.getTabAt(2).select() The source code is attached. MainActivity MainFragment FragmentOne(Common) FragmentTwo(Battery) FragmentThree(Internal) FragmentFour(Internal) FragmentFirst FragmentSecond .... FragmentSix  Source Code  Zip archive

class MyTask extends AsyncTask<Void, Void, Integer> {    @Override    protected Integer doInBackground(Void... params) {        //Thread.currentThread().setPriority(Thread.MIN_PRIORITY);        while (!isCancelled()) {            try {                TimeUnit.SECONDS.sleep(3);            } catch (InterruptedException e) {                e.printStackTrace();            }            publishProgress();        }        return null;    }    @Override    protected void onProgressUpdate(Void... values) {        super.onProgressUpdate(values);        Log.d(TAG, "MainFragment do try");        try {            //tabLayout.getTabAt(0).select(); textV1.setText not work when tab(0) inactive            TextView textV1 = (TextView) findViewById(R.id.TextName2);            textV1.setText("InternalMemory");            TextView textV2 = (TextView) findViewById(R.id.textParam6);            textV2.setText("All: "+bytesToHuman(getTotalInternalSpace()));            TextView textV3 = (TextView) findViewById(R.id.textParam7);            textV3.setText("Path: "+getInternalMemoryPath());            TextView textV4 = (TextView) findViewById(R.id.textParam9);            textV4.setText("Free: "+bytesToHuman(getAvailableInternalSpaceSize()));            int t4 = (int) Math.ceil(((getAvailableInternalSpaceSize()*100)/getTotalInternalSpace()));            TextView textV5 = (TextView) findViewById(R.id.textParam8);            textV5.setText(String.format("%d ",t4) + "% ");            ProgressBar textV6 = (ProgressBar) findViewById(R.id.progressBar1);            textV6.setProgress(t4);            if (t4<=20) {                textV6.getProgressDrawable().setColorFilter(Color.RED, PorterDuff.Mode.SRC_IN);            } else if ((t4>20) && (t4<=40)){                textV6.getProgressDrawable().setColorFilter(Color.MAGENTA, PorterDuff.Mode.SRC_IN);            } else if ((t4>40) && (t4<=60)){                textV6.getProgressDrawable().setColorFilter(Color.YELLOW, PorterDuff.Mode.SRC_IN);            } else if ((t4>60) && (t4<=80)){                textV6.getProgressDrawable().setColorFilter(Color.BLUE, PorterDuff.Mode.SRC_IN);            } else if ((t4>80) && (t4<=90)){                textV6.getProgressDrawable().setColorFilter(Color.GREEN, PorterDuff.Mode.SRC_IN);            } else if ((t4>90) && (t4<=100)){                textV6.getProgressDrawable().setColorFilter(Color.WHITE, PorterDuff.Mode.SRC_IN);            } else textV6.getProgressDrawable().setColorFilter(Color.WHITE, PorterDuff.Mode.SRC_IN);                Log.d(TAG, "MainFragment do internalMemoryInfo");            //tabLayout.getTabAt(2).select();ThreeFragment.showText not work when tab(2) inactive            ThreeFragment.showText(textV2.getText() + "\n" +                                   textV3.getText() + "\n" +                                   textV4.getText() + "\n" +                                   "Percent: " + textV5.getText());            Log.d(TAG, "MainFragment posle internalMemoryInfo");            } catch (Exception e) {                Log.d(TAG, "MainFragment in Exception");                e.printStackTrace();            }    } }