Android BroadcastReceiver onReceive Update TextView in MainActivity

Question

In MainActivity I have a TextView: textV1. I also have a method in MainActivity that updates that textview:

public void updateTheTextView(final String t) {
         


        

Answer 1

create an instance of the class and then pass the value to the function that changes TextView value follow these steps please : in your BroadcastReceiver overRide onReceive method and paste These lines or changes theme as you wish

private Handler handler = new Handler(); // Handler used to execute code on the UI thread
// Post the UI updating code to our Handler
handler.post(new Runnable() {
    @Override
    public void run() {
    //Toast.makeText(context, "Toast from broadcast receiver", Toast.LENGTH_SHORT).show();
    YourActivityToUpdate.updateTheTextView(message);
    YourActivityToUpdateinst = YourActivityToUpdate.instance();
        if(inst != null)  { // your activity can be seen, and you can update it's context
        inst.updateTheTextView(message);
        }
    }
});

now we explain the updateTheTextView and inst in YourActivityToUpdate class Paste these Lines please

private static SignUpVerify mInst;

public static SignUpVerify instance() {
        return mInst;
}
@Override
public void onStart() {
    super.onStart();
    mInst = this;
}

@Override
public void onStop() {
    super.onStop();
    mInst = null;
}

and this is the updateTheTextView method that should be placed in YourActivityToUpdate class

public void updateTheTextView(final String verifyCodeValue) {
                Log.i("verifyCodeValue", verifyCodeValue);
                YourTextViewToUpdate.setText(verifyCodeValue);
    }

i think this is a better way thanks to "kevin-lynx"