我的朋友和我正在开发一款应用,它可以使用wifi-direct在安卓设备之间流同步音乐。我们的问题是,虽然一旦手机连接上了应用就可以很好地工作,但是要让手机连接起来需要花费一些时间,因为在所有AOSP设备上,似乎只有在进入wifi直连菜单后才会打开wifi直连功能(并在退出后立即关闭)。这使得应用内连接变得相当困难。我们想知道是否有办法从代码中打开wifi直连并保持其打开状态(如果有人能够引导我们详细描述如何使用反射来实现这一点,那就太棒了)。
谢谢!这是我们当前的代码:
谢谢!这是我们当前的代码:
public class Reflector {
static Method turnOnICS;
static Method turnOnJB;
static Method turnOffICS;
public static void turnOnP2P(WifiP2pManager m, Channel c) {
//Log.v("button", "turnOnP2P");
if (android.os.Build.VERSION.SDK_INT == 14 || android.os.Build.VERSION.SDK_INT == 15) {
//Log.v("version", "Version is ICS");
try {
turnOnICS = WifiP2pManager.class.getDeclaredMethod("enableP2p",WifiP2pManager.Channel.class);
turnOnICS.setAccessible(true);
turnOnICS.invoke(m, c);
} catch (NoSuchMethodException e) {
Log.v("ics_error", "ICS enableP2p() not found");
} catch (Exception e) {
Log.v("ics_error", "turnOnICS invocation failure");
}
} else if (android.os.Build.VERSION.SDK_INT == 16 || android.os.Build.VERSION.SDK_INT == 17) {
//Log.v("version", "Version is JB");
try {
turnOnJB = NsdManager.class.getDeclaredMethod("setEnabled", boolean.class);
turnOnJB.setAccessible(true);
turnOnJB.invoke(NsdManager.class, true);
//must feed it an nsdmanager, but none exists in wifidirectactivity
Log.v("nsd", "problem");
} catch (NoSuchMethodException e) {
Log.v("jb_error", "JB setEnabled() not found");
} catch (Exception e) {
Log.v("jb_error", "turnOnJB invocation failure");
e.printStackTrace();
}
}
}
public static void turnOffP2P(WifiP2pManager m, Channel c) {
//Log.v("button", "turnOffP2P");
if (android.os.Build.VERSION.SDK_INT == 14 || android.os.Build.VERSION.SDK_INT == 15) {
//Log.v("version", "Version is ICS");
try {
turnOffICS = WifiP2pManager.class.getDeclaredMethod("disableP2p", WifiP2pManager.Channel.class);
turnOffICS.setAccessible(true);
turnOffICS.invoke(m, c);
} catch (NoSuchMethodException e) {
Log.v("ics_error", "ICS disableP2P() not found");
} catch (Exception e) {
Log.v("ics_error", "turnOffICS invocation failure");
}
}
}
public static void printAll(){
Method[] list = WifiP2pManager.class.getDeclaredMethods();
for(Method m : list){
Log.v("tag",m.getName());
}
}
}