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 isNetworkAvailable(Context context) {
    if (context != null) {
        ConnectivityManager manager = (ConnectivityManager) context.getApplicationContext()
                .getSystemService(Context.CONNECTIVITY_SERVICE);
        if (manager == null) {
            return false;
        }//from   ww  w.  j a va 2  s . c  o  m
        NetworkInfo networkinfo = manager.getActiveNetworkInfo();
        if (networkinfo == null || !networkinfo.isAvailable()) {
            return false;
        }

        if (networkinfo.getState() == NetworkInfo.State.CONNECTED) {
            return true;
        } else {
            return false;
        }
    }
    return false;
}

From source file:Main.java

/**
 * Retrieves the PackageInfo object for this application.
 *
 * @param context Any context./* ww w  . j  a  va  2 s  .  co m*/
 * @return The PackageInfo object for this application.
 */
public static PackageInfo getOwnPackageInfo(Context context) {
    PackageManager manager = context.getPackageManager();
    try {
        String packageName = context.getApplicationContext().getPackageName();
        return manager.getPackageInfo(packageName, 0);
    } catch (NameNotFoundException e) {
        // Should never happen.
        throw new AssertionError("Failed to retrieve own package info");
    }
}

From source file:Main.java

private static File createCacheDir(final Context context, final String dirName) {
    final File cache = new File(context.getApplicationContext().getCacheDir(), dirName);
    if (!cache.exists()) {
        cache.mkdirs();/*from w w  w.ja v a 2s. c o m*/
    }
    return cache;
}

From source file:Main.java

public static SharedPreferences getDefaultSharedPreferences(Context _context) {
    if (sPreferences == null) {
        sPreferences = PreferenceManager.getDefaultSharedPreferences(_context.getApplicationContext());
    }// w w w .ja  v a 2  s . c o  m
    return sPreferences;
}

From source file:Main.java

protected static SharedPreferences createPrefs(Context context, String name, int mode) {
    if (TextUtils.isEmpty(name)) {
        return PreferenceManager.getDefaultSharedPreferences(context.getApplicationContext());
    } else {//from w  w w.  ja va2 s .c  o m
        return context.getSharedPreferences(name, mode);
    }
}

From source file:Main.java

public static int getScreenWidth(Context context) {
    if (null == context) {
        return 0;
    }//from  w ww .j  a v a 2s  .  c  o  m
    DisplayMetrics dm = new DisplayMetrics();
    dm = context.getApplicationContext().getResources().getDisplayMetrics();
    return dm.widthPixels;
}

From source file:Main.java

/**
 * @return the absolute path to the AnkiDroid directory.
 *///  w w w .j  a  va2 s.  c o m
public static String getCurrentAnkiDroidDirectory(Context context) {
    SharedPreferences preferences = PreferenceManager
            .getDefaultSharedPreferences(context.getApplicationContext());
    return preferences.getString("deckPath", getDefaultAnkiDroidDirectory());
}

From source file:Main.java

public static void reloadLocale(Context context) {
    SharedPreferences sharedPrefs = PreferenceManager
            .getDefaultSharedPreferences(context.getApplicationContext());
    String lang = sharedPrefs.getString(PREF_APP_LANGUAGE, Locale.getDefault().getLanguage());
    if (sharedPrefs.getString(PREF_APP_LANGUAGE, "").equalsIgnoreCase("")) {
        sharedPrefs.edit().putString(PREF_APP_LANGUAGE, lang).commit();
    }//from  w  ww.j a  va2s .  c o m
    Configuration newConfig = context.getResources().getConfiguration();

    if (!newConfig.locale.getLanguage().equals(lang)) {
        locale = new Locale(lang);
    }

    if (locale != null) {
        Locale.setDefault(locale);
        newConfig.locale = locale;
        context.getResources().updateConfiguration(newConfig, context.getResources().getDisplayMetrics());
    }
}

From source file:Main.java

@SuppressWarnings("ResourceType")
@SuppressLint("ShowToast")
public static void showToastMessage(Context context, String msg) {

    try {/*  w  ww.  java2  s .  c  o m*/
        if (msg != null && !msg.equalsIgnoreCase("")) {
            Toast.makeText(context.getApplicationContext(), msg, 4000).show();
        }
    } catch (Exception e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }

}

From source file:Main.java

/**
 * Checks if an App is Installed.//w w w. j  a v a  2 s  . com
 *
 * @return true if installed false otherwise
 */
public static boolean isAppInstalled(Context context, String packageName) {

    if (context == null)
        return false;

    PackageManager pm = context.getApplicationContext().getPackageManager();
    boolean isAppInstalled = false;
    try {

        pm.getPackageInfo(packageName, PackageManager.GET_ACTIVITIES);
        isAppInstalled = true;

    } catch (PackageManager.NameNotFoundException e) {
        isAppInstalled = false;
    }

    return isAppInstalled;
}