How to identify mute/unmute click - SOLVE

my problem is following: I want indentify (the keyevent) when the user click in the mute/unmute button and so change the satus of toggle button.

One image to understand better: https://lh6.googleusercontent.com/-yHjyvtCiyac/Ul6uQz_Ga2I/AAAAAAAAAiY/Ug06zyq7_Vg/w619-h81-no/volumebar.jpg

How do this?

Thanks.

Sorry for my english. I use Google Translator for do this >.<

Update: The mute/unmute button in XML file :

<ToggleButton 
android:id="@+id/toggle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="@drawable/audiobtn"
android:textOn="" 
android:textOff="" />

Last Update: The problem was solved using the BroadcastReceiver class. Thanks for the help!

Solution

For Toggle Button

add this line in toggle button xml

android:onClick="onToggleClicked"

Now in your activity class set this listener as

public void onToggleClicked(View view) {
    // Is the toggle on?
    boolean on = ((ToggleButton) view).isChecked();

    if (on) {
        // set image for on state 
    } else {
      // set image for off state 
    }
}

More info for Toggle button can be find here

For simple button

Step 1 Create object on your button Button muteBtn=(Button)findViewById(R.id.mute_btn);

Step 2 Create the click listener of this button and change it to pressed/non pressed state using a boolean which stores its state like this.

boolean muteBtnSelection;

muteBtn.setOnClickListener(new OnClickListener() {

        @Override
        public void onClick(View v) {
            // TODO Auto-generated method stub
            if (muteBtnSelection) {

                muteBtnSelection=false;

                // set yout image for  mutebtn_pressed
                muteBtn.setBackground(R.drawable.mutebtn_pressed);

            } else {
                muteBtnSelection=true;

                // set yout image for  mutebtn_not_pressed
                muteBtn.setBackground(R.drawable.mutebtn_not_pressed);

            }



        }
    });

in this way you can toggle between pressed and non pressed state.