当我的应用程序在 Android 中运行时，如何打开 Wifi？

Question

当我启动twitter应用程序时，如何通过编码自动打开WiFi？

Answer 1

我还没有尝试过这个，但它应该可以工作：

WifiManager wifiManager = (WifiManager) getSystemService(Context.WIFI_SERVICE);
if (wifiManager != null)
  wifiManager.setWifiEnabled(true);

将此权限添加到清单文件中：

<uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />

Answer 2

  if (text.indexOf("wi-fi") != -1) {
            if (text.indexOf("on") != -1) {
                WifiManager wifi = (WifiManager) this.getApplicationContext().getSystemService(Context.WIFI_SERVICE);
                if (wifi.isWifiEnabled()) {
                    Toast.makeText(MainActivity.this, "Already WiFi is Enabled", Toast.LENGTH_SHORT).show();
                    tts.speak("Already WiFi is Enabled", TextToSpeech.QUEUE_ADD, null);
                }
          else {
                wifi.setWifiEnabled(true);
                Toast.makeText(MainActivity.this,"Turning on",Toast.LENGTH_SHORT).show();
                Toast.makeText(MainActivity.this, "Turning on wifi", Toast.LENGTH_SHORT).show();
                tts.speak("Turning on wifi", TextToSpeech.QUEUE_ADD, null);
            }
        }