java - 如何通过函数调用启用 float 操作按钮？

Question

我正在使用 android sipmanager 实现一个简单的 sip 调用。一旦两个代理之间建立调用，我想在屏幕上显示下面列出的 float 操作按钮。但有些它永远不会激活下面的代码列表，以使该按钮在成功调用时可见。它确实显示日志。任何帮助将不胜感激

SipAudioCall.Listener listener = new SipAudioCall.Listener() {


            /**
             * Name: onCallEstablished
             * Description: onCallEstablished is called when the
             * user establishes a call. This method
             * will enable the User to talk to the
             * person on the opposite line.
             */


           @Override
            public void onCallEstablished(SipAudioCall call) {



               super.onCallEstablished(call);

               call.startAudio();
               call.setSpeakerMode(true);
               //it does shows log in console 
               Log.e("$$", "Manager was instantiated");  

              // it doesnt change floating action button to visible
               View view7 =findViewById(R.id.fab6);
               view7.setVisibility(View.VISIBLE);

               setText("Call ESTABLISEHED");

                if (call.isMuted()) {
                    call.toggleMute();
                }



           }

Answer 1

您应该将其分配给 FloatingActionButton 对象，而不是 View。然后使用 show() 和 hide() 方法。