Android P在状态栏加入USB图标并根据插入/拔出状态显示/隐藏USB图标

刺骨的言语ヽ痛彻心扉 2023-06-06 12:20 18阅读 0赞

代码路径：  
frameworks\\base\\packages\\SystemUI\\res\\layout\\system\_icons.xml  
frameworks\\base\\packages\\SystemUI\\src\\com\\android\\systemui\\statusbar\\phone\\CollapsedStatusBarFragment.java

在system\_icons.xml中加入USB图标的UI：

在CollapsedStatusBarFragment.java中加入USB图标的逻辑：

import android.hardware.usb.UsbManager;
    
    private ImageView mIconUsb;
    mIconUsb = mStatusBar.findViewById(R.id.icon_usb);
    
    IntentFilter filter = new IntentFilter();
    filter.addAction(MUSIC_STATUSBAR);
    filter.addAction(MUSIC_START);
    filter.addAction(MUSIC_END);
    filter.addAction(UsbManager.ACTION_USB_DEVICE_ATTACHED);
    filter.addAction(UsbManager.ACTION_USB_DEVICE_DETACHED);
    getContext().registerReceiver(mBroadcastReceiver,filter);
    
    private BroadcastReceiver mBroadcastReceiver = new BroadcastReceiver() { 
        @Override
        public void onReceive(Context context, Intent intent) { 
            switch(intent.getAction()){ 
    
                case MUSIC_STATUSBAR:
                    mHeadUpMusic.setVisibility(View.VISIBLE);
                    mIconMusic.setVisibility(View.VISIBLE);
                    String string = (String) intent.getStringExtra("Music_Status");
                    updateHeadUpMusic(string);
                    break;
                case MUSIC_START:
                    mHeadUpMusic.setVisibility(View.VISIBLE);
                    mIconMusic.setVisibility(View.VISIBLE);
                    String string1 = (String) intent.getStringExtra("StatusBar_Music_Msg");    
                    updateHeadUpMusic(string1);
                    break;
                case MUSIC_END:
                    mHeadUpMusic.setVisibility(View.GONE);
                    mIconMusic.setVisibility(View.GONE);
                    Log.i("MUSIC_END","GONE");
                    break;
                case UsbManager.ACTION_USB_DEVICE_ATTACHED:
                    mIconUsb.setVisibility(View.VISIBLE);
                    break;
                case UsbManager.ACTION_USB_DEVICE_DETACHED:
                    mIconUsb.setVisibility(View.GONE);
                    break;
          }
            
        }
    };