蓝牙打印和蓝牙连接代码

[{"title":"（1601个子文件13.39MB）蓝牙打印和蓝牙连接代码","children":[{"title":"gradlew <span style='color:#111;'>4.85KB</span>","children":null,"spread":false},{"title":"settings.gradle <span style='color:#111;'>16B</span>","children":null,"spread":false},{"title":"PrintQRcode.iml <span style='color:#111;'>865B</span>","children":null,"spread":false},{"title":"com_android_support_support_annotations_27_1_1_jar.xml <span style='color:#111;'>609B</span>","children":null,"spread":false},{"title":"com_jakewharton_butterknife_8_8_1.xml <span style='color:#111;'>664B</span>","children":null,"spread":false},{"title":"......","children":null,"spread":false},{"title":" <span style='color:steelblue;'>文件过多，未全部展示</span>","children":null,"spread":false}],"spread":true}]