Example usage for android.content Context getApplicationContext

Introduction

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

Prototype

public abstract Context getApplicationContext();

Source Link

Document

Return the context of the single, global Application object of the current process.

Usage

From source file:Main.java

public static boolean isInstalledOnSDCard(Context context) {
    return isInstalledOnSDCard((Application) context.getApplicationContext());
}

From source file:Main.java

public static void deleteSharedPreferences(Context context) {
    try {// ww  w  . j a v  a  2 s .  c o m
        Context appContext = context.getApplicationContext();
        ApplicationInfo info = appContext.getPackageManager().getApplicationInfo(appContext.getPackageName(),
                0);
        String dirPath = info.dataDir + File.separator + "shared_prefs" + File.separator;
        File dir = new File(dirPath);
        if (dir.exists() && dir.isDirectory()) {
            String[] list = dir.list();
            int size = list.length;
            for (int i = 0; i < size; i++) {
                new File(dirPath + list[i]).delete();
            }
        } else {
            //Log.d("AAA", "NO FILE or NOT DIR");
        }
    } catch (PackageManager.NameNotFoundException e) {
        e.printStackTrace();
    }
}

From source file:Main.java

public static boolean saveRes(Context gContext, int res, String dirjpg) {
    InputStream is = gContext.getApplicationContext().getResources().openRawResource(res);
    boolean rez = false;
    try {//from ww w .j a  va  2s  .c o m
        FileOutputStream rtFOS = new FileOutputStream(dirjpg + "/" + res + ".gif");
        byte[] buffer = new byte[4096];
        int n = -1;
        while ((n = is.read(buffer, 0, 4095)) != -1) {
            if (n > 0)
                rtFOS.write(buffer, 0, n);
            rez = true;
        }
        rtFOS.flush();
        rtFOS.close();
    } catch (Exception e) {
        Log.e("FullscreenActivity", e.toString());
    }
    return rez;
}

From source file:Main.java

/**
 * Returns whether location services are currently active in the specified context. Location
 * services are active if both GPS and network location services are enabled.
 * @param context the context from which to check
 * @return true if there location services are on, otherwise false
 *///from   w  w  w . j  a  v a  2 s .c o  m
public static boolean isLocationServicesOn(Context context) {
    LocationManager lm = (LocationManager) context.getApplicationContext()
            .getSystemService(Context.LOCATION_SERVICE);
    boolean gpsEnabled = false;
    boolean networkEnabled = false;

    // check whether GPS and network providers are enabled
    try {
        gpsEnabled = lm.isProviderEnabled(LocationManager.GPS_PROVIDER);
    } catch (Exception e) {
    }

    try {
        networkEnabled = lm.isProviderEnabled(LocationManager.NETWORK_PROVIDER);
    } catch (Exception e) {
    }

    // only show dialog if location services are not enabled
    return (gpsEnabled || networkEnabled);
}

From source file:Main.java

public static boolean detect(Context context) {

    ConnectivityManager manager = (ConnectivityManager) context.getApplicationContext()
            .getSystemService(Context.CONNECTIVITY_SERVICE);

    if (manager == null) {
        return false;
    }/*from w w w  .ja  v  a2  s.com*/
    NetworkInfo networkinfo = manager.getActiveNetworkInfo();

    if (networkinfo == null || !networkinfo.isAvailable()) {
        return false;
    }

    return true;
}

From source file:Main.java

public static File getOutputMediaFile(int type, Context c) {
    File mediaStorageDir = new File(c.getApplicationContext().getExternalFilesDir(null).getAbsolutePath());
    // Create the storage directory if it does not exist
    if (!mediaStorageDir.exists()) {
        if (!mediaStorageDir.mkdirs()) {
            Log.d("MyCameraApp", "failed to create directory");
            return null;
        }/*from w  w  w .ja v  a2 s .c o  m*/
    }

    // Create a media file name
    String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date());
    File mediaFile;
    if (type == MEDIA_TYPE_IMAGE) {
        mediaFile = new File(mediaStorageDir.getPath() + File.separator + "IMG_" + timeStamp + ".jpg");
    } else if (type == MEDIA_TYPE_AUDIO) {
        mediaFile = new File(mediaStorageDir.getPath() + File.separator + "VID_" + timeStamp + ".3gp");
    } else {
        return null;
    }

    return mediaFile;
}

From source file:Main.java

public static String getPackageName(Context context) {
    if (context == null) {
        return null;
    }//from w w w.jav a2 s  .c o m
    return context.getApplicationContext().getPackageName();
}

From source file:Main.java

public static boolean isAppOnForeground(Context ctx) {
    ActivityManager activityManager = (ActivityManager) ctx.getApplicationContext()//
            .getSystemService(Context.ACTIVITY_SERVICE);
    String packageName = ctx.getApplicationContext().getPackageName();

    List<RunningAppProcessInfo> appProcesses = activityManager.getRunningAppProcesses();
    if (appProcesses == null) {
        return false;
    }/*from   w  w w . ja  v  a  2  s. c  om*/

    for (RunningAppProcessInfo appProcess : appProcesses) {
        if (appProcess.processName.equals(packageName)
                && appProcess.importance == RunningAppProcessInfo.IMPORTANCE_FOREGROUND) {
            return true;
        }
    }
    return false;
}

From source file:Main.java

public static void showToast(CharSequence message, Context context) {
    int duration = Toast.LENGTH_SHORT;

    Toast toast = Toast.makeText(context.getApplicationContext(), message, duration);
    toast.show();/*ww w.  j a  va2 s  .c om*/
}

From source file:Main.java

public static boolean isNetworkAvailable(Context context) {

    ConnectivityManager manager = (ConnectivityManager) context.getApplicationContext()
            .getSystemService(Context.CONNECTIVITY_SERVICE);

    if (manager == null) {
        return false;
    }/*from  ww  w .  j av  a  2 s.co  m*/

    NetworkInfo networkinfo = manager.getActiveNetworkInfo();

    if (networkinfo == null || !networkinfo.isAvailable()) {
        return false;
    }

    return true;
}