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adb kill-serveradb devices先杀死adb服务，DevEco-Studio IDEA自动重启adb。重新连接真机即可。

鸿蒙Harmony 拖动监听DraggedListener效果图源码地址https://gitee.com/liukerui/harmony-app-examples.git

鸿蒙Harmony 设置状态栏颜色 @Override public void onStart(Intent intent) { Window window = getWindow(); window.setStatusBarColor(Color.BLACK.getValue()); window.setStatusBarVisibility(Component.VISIBLE); super.onStart(intent);