蓝牙布局

<?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools" android:id="@+id/activity_main"    android:layout_width="match_parent" android:layout_height="match_parent"    tools:context="alice.bw.com.resolverapp.MainActivity">    <com.handmark.pulltorefresh.library.PullToRefreshListView        android:id="@+id/lv"        android:layout_width="match_parent"        android:layout_height="match_parent"></com.handmark.pulltorefresh.library.PullToRefreshListView></RelativeLayout>

activity02布局<?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    android:id="@+id/activity_bluetooth"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:paddingBottom="@dimen/activity_vertical_margin"    android:paddingLeft="@dimen/activity_horizontal_margin"    android:paddingRight="@dimen/activity_horizontal_margin"    android:paddingTop="@dimen/activity_vertical_margin"    tools:context="alice.bw.com.day04_yuekaodemo.BluetoothActivity">    <TextView        android:id="@+id/searchBlueTooth"        android:text="点击搜索蓝牙"        android:layout_width="wrap_content"        android:layout_height="wrap_content" />    <TextView        android:id="@+id/devices_list"        android:visibility="gone"        android:layout_below="@+id/searchBlueTooth"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        />    <ListView        android:id="@+id/bluetooth_devices_list"        android:layout_below="@+id/searchBlueTooth"        android:layout_width="wrap_content"        android:layout_height="wrap_content">    </ListView></RelativeLayout>

resolverapp_list布局

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:orientation="horizontal" android:layout_width="match_parent"    android:layout_height="match_parent">    <ImageView        android:id="@+id/iv"        android:layout_width="wrap_content"        android:layout_height="wrap_content" />    <TextView        android:id="@+id/tv"        android:layout_gravity="center"        android:layout_width="wrap_content"        android:layout_height="wrap_content" /></LinearLayout>