Activity jump encapsulation

public class ActivityManager {
    

    /** * activity Jump without parameters  * * @param context  Context  * @param cls  The goal is  */
    public static void goActivity(Context context, Class<? extends Activity> cls) {
    
        startActivity(context, cls, null, -1, -1);
    }

    /** * activity Jump band parameters  * * @param context  Context  * @param cls  The goal is  * @param bundle  Parameters  */
    public static void goActivity(Context context, Class<? extends Activity> cls, Bundle bundle) {
    
        startActivity(context, cls, bundle, -1, -1);
    }

    /** * activity Jump callback without parameters  * * @param context  Context  * @param cls  The goal is  * @param requestCode  Request code  */
    public static void goActivityForResult(Context context, Class<? extends Activity> cls, int requestCode) {
    
        startActivity(context, cls, null, requestCode, -1);
    }

    /** * activity Jump callback with parameters  * * @param context  Context  * @param cls  The goal is  * @param bundle  Parameters  * @param requestCode  Request code  */
    public static void goActivityForResult(Context context, Class<? extends Activity> cls, Bundle bundle, int requestCode) {
    
        startActivity(context, cls, bundle, requestCode, -1);
    }

    /** * activity Callback  * * @param context  Context  * @param bundle  Parameters  * @param resultCode  Result code  */
    public static void comeActivitySetResult(Context context, Bundle bundle, int resultCode) {
    
        startActivity(context, null, bundle, -1, resultCode);
    }

    private static void startActivity(Context context, Class<? extends Activity> cls, Bundle bundle, int requestCode, int resultCode) {
    
        Intent intent;
        if (null != cls) {
    
            intent = new Intent(context, cls);
        } else {
    
            intent = new Intent();
        }
        if (null != bundle) {
    
            intent.putExtras(bundle);
        }
        if (-1 != resultCode) {
    
            ((Activity) context).setResult(resultCode, intent);
        } else {
    
            if (-1 != requestCode) {
    
                ((Activity) context).startActivityForResult(intent, requestCode);
            } else {
    
                context.startActivity(intent);
            }
        }
    }
}