要在Android Q中实现无需批准即可连接WiFi的功能,可以使用以下代码示例:
首先,在AndroidManifest.xml文件中添加以下权限:
然后,在需要连接WiFi的Activity或Fragment中使用以下代码:
import android.Manifest;
import android.content.Context;
import android.net.ConnectivityManager;
import android.net.Network;
import android.net.NetworkCapabilities;
import android.net.NetworkRequest;
import android.net.wifi.WifiConfiguration;
import android.net.wifi.WifiManager;
import android.os.Build;
import android.os.Bundle;
import android.widget.Toast;
import androidx.annotation.NonNull;
import androidx.annotation.RequiresApi;
import androidx.appcompat.app.AppCompatActivity;
public class MainActivity extends AppCompatActivity {
private WifiManager wifiManager;
private ConnectivityManager.NetworkCallback networkCallback;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
wifiManager = (WifiManager) getApplicationContext().getSystemService(Context.WIFI_SERVICE);
// 检查权限
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
requestPermissions(new String[]{Manifest.permission.ACCESS_FINE_LOCATION}, 1);
}
// 如果WiFi未启用,则启用WiFi
if (!wifiManager.isWifiEnabled()) {
wifiManager.setWifiEnabled(true);
}
// 创建一个NetworkCallback来监听网络连接状态
networkCallback = new ConnectivityManager.NetworkCallback() {
@Override
public void onAvailable(@NonNull Network network) {
super.onAvailable(network);
// 连接到指定的WiFi网络
connectToWifi("YourWiFiSSID", "YourWiFiPassword");
}
};
// 注册网络连接回调
ConnectivityManager connectivityManager = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkRequest networkRequest = new NetworkRequest.Builder()
.addCapability(NetworkCapabilities.NET_CAPABILITY_INTERNET)
.build();
connectivityManager.registerNetworkCallback(networkRequest, networkCallback);
}
@Override
protected void onDestroy() {
super.onDestroy();
// 注销网络连接回调
ConnectivityManager connectivityManager = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
connectivityManager.unregisterNetworkCallback(networkCallback);
}
// 连接到指定的WiFi网络
@RequiresApi(api = Build.VERSION_CODES.Q)
private void connectToWifi(String ssid, String password) {
WifiConfiguration wifiConfig = new WifiConfiguration();
wifiConfig.SSID = "\"" + ssid + "\"";
wifiConfig.preSharedKey = "\"" + password + "\"";
wifiConfig.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.WPA_PSK);
int networkId = wifiManager.addNetwork(wifiConfig);
if (networkId != -1) {
// 连接到指定的WiFi
wifiManager.enableNetwork(networkId, true);
wifiManager.reconnect();
Toast.makeText(this, "WiFi连接成功", Toast.LENGTH_SHORT).show();
} else {
Toast.makeText(this, "WiFi连接失败", Toast.LENGTH_SHORT).show();
}
}
}
请注意,这段代码中的 "YourWiFiSSID" 和 "YourWiFiPassword" 部分需要根据实际情况替换为要连接的WiFi SSID和密码。
此代码确保在Android Q上连接到指定的WiFi网络时无需用户批准。