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

/**
 * A forced setting of an application context for the SDK.
 * That method must be call in services of broadcast events for prepare the SDK for a work.
 *
 * @param appContext Context of application
 *///from   w  ww . j  a  v  a  2  s . c o  m
static void setApplicationContext(Context appContext) {
    if (appContext != null) {
        sApplicationContext = appContext.getApplicationContext();
    }
}

From source file:Main.java

public static void showLong(Context context, @StringRes int resId) {
    if (context != null) {
        Toast.makeText(context.getApplicationContext(), resId, Toast.LENGTH_LONG).show();
    }/*from   w w  w .ja  v a2s.c  o  m*/
}

From source file:Main.java

/**
 * Gets the calling package names for the current transaction.
 * @param context The context to use for accessing the package manager.
 * @return The calling package names./*from w ww. j  a v  a2  s  . co  m*/
 */
private static String[] getCallingPackages(Context context) {
    int callingUid = Binder.getCallingUid();
    PackageManager pm = context.getApplicationContext().getPackageManager();
    return pm.getPackagesForUid(callingUid);
}

From source file:Main.java

public static void showShort(Context context, @StringRes int resId) {
    if (context != null) {
        Toast.makeText(context.getApplicationContext(), resId, Toast.LENGTH_SHORT).show();
    }//from w  ww . j  a  va  2  s  .  co m
}

From source file:Main.java

private static synchronized void createToast(Context context) {
    if (sToast == null) {
        sToast = Toast.makeText(context.getApplicationContext(), "", Toast.LENGTH_SHORT);
    }/* w w w. j  a v  a  2 s. c  om*/
}

From source file:Main.java

public static String getApplicationName(Context ctx) {
    ApplicationInfo ai;/*from www.j  av  a  2 s  . co m*/
    try {
        Context appContext = ctx.getApplicationContext();
        assert appContext != null;
        final PackageManager pm = appContext.getPackageManager();
        assert pm != null;
        ai = pm.getApplicationInfo(ctx.getPackageName(), 0);
        return (String) (ai != null ? pm.getApplicationLabel(ai) : "(unknown)");
    } catch (Exception ignored) {
    }
    return null;
}

From source file:Main.java

public static int getDisplayWidth(Context context) {
    if (displayWidth <= 0) {
        WindowManager wm = (WindowManager) context.getApplicationContext()
                .getSystemService(Context.WINDOW_SERVICE);
        DisplayMetrics dm = new DisplayMetrics();
        wm.getDefaultDisplay().getMetrics(dm);
        displayWidth = dm.widthPixels;// w w  w  .j  a v a2 s .c  o m
    }
    return displayWidth;
}

From source file:Main.java

public static int getDisplayHeight(Context context) {
    if (displayHeight <= 0) {
        WindowManager wm = (WindowManager) context.getApplicationContext()
                .getSystemService(Context.WINDOW_SERVICE);
        DisplayMetrics dm = new DisplayMetrics();
        wm.getDefaultDisplay().getMetrics(dm);
        displayHeight = dm.heightPixels;
    }/*from   w  w w  . ja va 2 s  .c  om*/
    return displayHeight;
}

From source file:Main.java

public static PackageInfo getOtherPackageInfo(Context context, String packageName) {
    PackageInfo info = null;//from  ww  w . java2s .  com
    try {
        info = context.getApplicationContext().getPackageManager().getPackageInfo(packageName, 0);
    } catch (PackageManager.NameNotFoundException e) {
        return null;
    }
    return info;
}

From source file:Main.java

/**
 * DisplayMetrics/*w  ww.j a va2  s .c  o m*/
 *
 * @return
 */
public static DisplayMetrics getDisplayMetrics(Context context) {
    DisplayMetrics displayMetrics = new DisplayMetrics();
    ((WindowManager) context.getApplicationContext().getSystemService(Context.WINDOW_SERVICE))
            .getDefaultDisplay().getMetrics(displayMetrics);
    return displayMetrics;
}