Example usage for android.content Context getSystemService

Introduction

In this page you can find the example usage for android.content Context getSystemService.

Prototype

@SuppressWarnings("unchecked")
public final @Nullable <T> T getSystemService(@NonNull Class<T> serviceClass)

Source Link

Document

Return the handle to a system-level service by class.

Usage

From source file:Main.java

public static int getScrWidth(Context context) {
    WindowManager wm = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);
    Display display = wm.getDefaultDisplay();
    return display.getWidth();
}

From source file:Main.java

public static int getScreenHeight(Context context) {
    WindowManager wm = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);
    DisplayMetrics metrics = new DisplayMetrics();
    wm.getDefaultDisplay().getMetrics(metrics);
    return metrics.heightPixels;
}

From source file:Main.java

public static String getTopActName(Context ctx) {
    ActivityManager am = (ActivityManager) ctx.getSystemService(Context.ACTIVITY_SERVICE);
    ComponentName cn = am.getRunningTasks(1).get(0).topActivity;
    String clsName = cn.getClassName();
    return clsName;
}

From source file:Main.java

public static boolean isScreenLock(Context context) {
    KeyguardManager km = (KeyguardManager) context.getSystemService(Context.KEYGUARD_SERVICE);
    return km.inKeyguardRestrictedInputMode();
}

From source file:Main.java

public static void vibrator(Context context, int msec) {
    Vibrator vib = (Vibrator) context.getSystemService(Context.VIBRATOR_SERVICE);
    if (vib != null) {
        vib.vibrate(msec);// ww  w .ja v a2  s  .com
    }
}

From source file:Main.java

public static String getDeviceId(Context context) {
    TelephonyManager tm = (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE);
    return tm.getDeviceId();
}

From source file:Main.java

/**
 * Checks if wifi is ON/* w  w w  . ja  v a 2  s. c  o m*/
 * @param context
 * @return
 */
public static boolean isWifiOn(Context context) {
    WifiManager wifi = (WifiManager) context.getSystemService(Context.WIFI_SERVICE);
    return wifi.isWifiEnabled();
}

From source file:Main.java

public static boolean isConnected(Context c) {
    NetworkInfo info = ((ConnectivityManager) c.getSystemService(Context.CONNECTIVITY_SERVICE))
            .getActiveNetworkInfo();/*from   www.j av a 2 s . c o  m*/
    return info != null && info.isConnected();
}

From source file:Main.java

public static String getMacAddress(Context context) {
    WifiManager manager = (WifiManager) context.getSystemService(Context.WIFI_SERVICE);
    WifiInfo info = manager.getConnectionInfo();
    return info.getMacAddress().toString();
}

From source file:Main.java

public static boolean getWifiEnabled(Context context) {
    WifiManager wifiManager = (WifiManager) context.getSystemService(Context.WIFI_SERVICE);
    return wifiManager.isWifiEnabled();
}