Android 2.3的WiFi热点API [英] Android 2.3 wifi hotspot API
问题描述
什么是API调用，我需要做的的Android 2.2（升级Froyo）创建WiFi热点（如数据共享和便携式热点设置项可以看出）。
What is the API call I need to make in Android 2.2 (Froyo) to create a Wifi hotspot (as seen in the Tethering and Portable Hotspot settings item).
推荐答案
目前没有官方的API，但你可以使用反射来处理它。我知道有些人说，这是不推荐使用，但恕我直言，我说，螺钉，如果谷歌不希望提供任何原因的API。
There is no official API, but you can use reflection to handle it. I know some say, it's not recommended, however imho I say, screw it if Google doesn't want to provide an API for whatever reason.
下面是一个活动我用我的应用程序，用户可以启用/禁用无线AP的code。 当启用了无线AP，平时经常WIFI将被关闭，因此在用户再次禁用无线AP，我们将再次激活常规的WiFi。
Below is the code of an activity I used in my application, where the user can enable/disable the Wifi AP. When you enable Wifi AP, usually the regular Wifi will be turned off, so after the user disables the Wifi AP again, we'll be activating regular wifi again.
在code样品下面是从我的项目之一，希望你能得到的逻辑也很容易。让我知道，如果您还有其他问题。
The code sample below is taken from one of my projects, hope you can get the logic there easily. Let me know if you have further questions.
$ C $，C是Nexus One的测试2.2（我认为也是2.3）以及关于三星Galaxy S（2.2）。
Code is tested on Nexus One 2.2 (and I think also 2.3) as well as on Samsung Galaxy S (2.2).
package com.myapp.android.activity.wifi;
import android.app.ProgressDialog;
import android.content.Context;
import android.net.wifi.WifiConfiguration;
import android.net.wifi.WifiManager;
import android.os.AsyncTask;
import android.os.Bundle;
import android.view.View;
import android.view.WindowManager;
import android.widget.Button;
import java.lang.reflect.Method;
public class WifiAP extends BaseActivity {
// boolean mIsWifiEnabled = false;
private static final int WIFI_AP_STATE_UNKNOWN = -1;
private static final int WIFI_AP_STATE_DISABLING = 0;
private static final int WIFI_AP_STATE_DISABLED = 1;
private static final int WIFI_AP_STATE_ENABLING = 2;
private static final int WIFI_AP_STATE_ENABLED = 3;
private static final int WIFI_AP_STATE_FAILED = 4;
private final String[] WIFI_STATE_TEXTSTATE = new String[] {
"DISABLING","DISABLED","ENABLING","ENABLED","FAILED"
};
private WifiManager wifi;
@Override
protected void onCreate(Bundle icicle) {
super.onCreate(icicle);
setContentView(R.layout.wifi);
getWindow().addFlags(WindowManager.LayoutParams.FLAG_DISMISS_KEYGUARD
|WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON
|WindowManager.LayoutParams.FLAG_DIM_BEHIND
);
wifi = (WifiManager) getSystemService(Context.WIFI_SERVICE);
}
@Override
public void onResume() {
super.onResume();
updateStatusDisplay();
}
public void toggleWifi(View v) {
boolean wifiApIsOn = getWifiAPState()==WIFI_AP_STATE_ENABLED || getWifiAPState()==WIFI_AP_STATE_ENABLING;
new SetWifiAPTask(!wifiApIsOn,false).execute();
}
public void close(View v) {
boolean wifiApIsOn = getWifiAPState()==WIFI_AP_STATE_ENABLED || getWifiAPState()==WIFI_AP_STATE_ENABLING;
if (wifiApIsOn) {
new SetWifiAPTask(false,true).execute();
} else {
finish();
}
}
/**
* Endable/disable wifi
* @param enabled
* @return WifiAP state
*/
private int setWifiApEnabled(boolean enabled) {
Log.d("WifiAP", "*** setWifiApEnabled CALLED **** " + enabled);
if (enabled && wifi.getConnectionInfo() !=null) {
wifi.setWifiEnabled(false);
try {Thread.sleep(1500);} catch (Exception e) {}
}
//int duration = Toast.LENGTH_LONG;
//String toastText = "MobileAP status: ";
int state = WIFI_AP_STATE_UNKNOWN;
try {
wifi.setWifiEnabled(false);
Method method1 = wifi.getClass().getMethod("setWifiApEnabled",
WifiConfiguration.class, boolean.class);
method1.invoke(wifi, null, enabled); // true
Method method2 = wifi.getClass().getMethod("getWifiApState");
state = (Integer) method2.invoke(wifi);
} catch (Exception e) {
Log.e(WIFI_SERVICE, e.getMessage());
// toastText += "ERROR " + e.getMessage();
}
if (!enabled) {
int loopMax = 10;
while (loopMax>0 && (getWifiAPState()==WIFI_AP_STATE_DISABLING
|| getWifiAPState()==WIFI_AP_STATE_ENABLED
|| getWifiAPState()==WIFI_AP_STATE_FAILED)) {
try {Thread.sleep(500);loopMax--;} catch (Exception e) {}
}
wifi.setWifiEnabled(true);
} else if (enabled) {
int loopMax = 10;
while (loopMax>0 && (getWifiAPState()==WIFI_AP_STATE_ENABLING
|| getWifiAPState()==WIFI_AP_STATE_DISABLED
|| getWifiAPState()==WIFI_AP_STATE_FAILED)) {
try {Thread.sleep(500);loopMax--;} catch (Exception e) {}
}
}
return state;
}
private int getWifiAPState() {
int state = WIFI_AP_STATE_UNKNOWN;
try {
Method method2 = wifi.getClass().getMethod("getWifiApState");
state = (Integer) method2.invoke(wifi);
} catch (Exception e) {}
Log.d("WifiAP", "getWifiAPState.state " + (state==-1?"UNKNOWN":WIFI_STATE_TEXTSTATE[state]));
return state;
}
private void updateStatusDisplay() {
if (getWifiAPState()==WIFI_AP_STATE_ENABLED || getWifiAPState()==WIFI_AP_STATE_ENABLING) {
((Button)findViewById(R.id.btnWifiToggle)).setText("Turn off");
findViewById(R.id.bg).setBackgroundResource(R.drawable.bg_wifi_on);
} else {
((Button)findViewById(R.id.btnWifiToggle)).setText("Turn on");
findViewById(R.id.bg).setBackgroundResource(R.drawable.bg_wifi_off);
}
}
class SetWifiAPTask extends AsyncTask<Void, Void, Void> {
boolean mMode;
boolean mFinish;
public SetWifiAPTask(boolean mode, boolean finish) {
mMode = mode;
mFinish = finish;
}
ProgressDialog d = new ProgressDialog(WifiAP.this);
@Override
protected void onPreExecute() {
super.onPreExecute();
d.setTitle("Turning WiFi AP " + (mMode?"on":"off") + "...");
d.setMessage("...please wait a moment.");
d.show();
}
@Override
protected void onPostExecute(Void aVoid) {
super.onPostExecute(aVoid);
try {d.dismiss();} catch (IllegalArgumentException e) {};
updateStatusDisplay();
if (mFinish) finish();
}
@Override
protected Void doInBackground(Void... params) {
setWifiApEnabled(mMode);
return null;
}
}
}
这篇关于Android 2.3的WiFi热点API的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
