setText within Fragment not updating

Question

I am currently attempting to clear the sensor values in a fragment, that are constantly being updated, however the clear button that I have set does nothing, even when I have paused the sensors. Have I correctly setup the onViewCreated?

I have also attempted to setup the textviews in onCreateView to no success. I get no errors whatsoever when I press the clear button, the values just don't clear.

Any pointers would be greatly appreciated!

public void onViewCreated(View view, Bundle savedInstanceState) {
    super.onViewCreated(view, savedInstanceState);


    mPitchView = (TextView)view.findViewById(R.id.textView4);
    mRollView = (TextView)view.findViewById(R.id.textView5);
    mAzimuthView = (TextView)view.findViewById(R.id.textView6);
    mRadioGroup = (RadioGroup) view.findViewById(R.id.radioGroup);
    mRadioGroup.setOnCheckedChangeListener(this);

    view.findViewById(R.id.button_clear).setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {

            onClear();

        }
    });   
}


public void onClear(){


    mPitchView.setText("");
    mRollView.setText("");
    mAzimuthView.setText("");
}

Also I have two other buttons start and stop which work perfectly fine. I think the issue is the textview not updating.

Try initializing `mPitchView`, `mRollView`, etc outside of the onViewCreated method. Also inside of the onClear() method try setting `mPitchView.getText().clear();` — coletrain, Jun 04 '16 at 04:21
Honestly, this code looks fine. Are you sure you are using the correct ids for the views? — OneCricketeer, Jun 04 '16 at 04:32
Did you try to put a breakpoint on the onClear() method and check if it has been hit? — Lichader, Jun 04 '16 at 04:48
@ cole For fragments, i think i have to initialise the views inside the method? Correct me if I'm wrong. @ cricket yes I am sure. @ Lichader yes I have tried, the buttons are being hit and method is called. — oompagoompa, Jun 04 '16 at 05:13
this should work since you say onclear gets called. the only reason I can see maybe are altering these values later on onresume or somewhere else? — z3n105, Jun 04 '16 at 08:35
@aloupas it shouldn't be , i have tried using onstop and onpause to ensure sensor values are not updated , following with onclear, however text still remains the same. — oompagoompa, Jun 04 '16 at 08:41

score 0 · Accepted Answer · answered Jun 04 '16 at 13:45

0

use  Handler     

 Handler txtsettext = new Handler(Looper.getMainLooper());
                            txtsettext.post(new Runnable() {
                                public void run() {
                                   mPitchView.setText("");
                                   mRollView.setText("");
                                   mAzimuthView.setText("");   

                                }
                            });

answered Jun 04 '16 at 13:45

Gil Snovsky

210
2
6

Hi, sorry I am relatively new to the concepts of handlers, how would I incorporate it into my code? – oompagoompa Jun 04 '16 at 15:08
public void onClear(){ Handler txtsettext = new Handler(Looper.getMainLooper()); txtsettext.post(new Runnable() { public void run() { mPitchView.setText(""); mRollView.setText(""); mAzimuthView.setText(""); } }); } – Gil Snovsky Jun 04 '16 at 15:14
Have tried again, works now , turns out there was a runnable causing the display to be constantly updated with the last sensor result. My fault. Thanks – oompagoompa Sep 09 '16 at 15:08

setText within Fragment not updating

1 Answers1