Method assertInitialization

xlog/src/main/java/com/elvishew/xlog/XLog.java:255–259

Throw an IllegalStateException if not initialized.

()

   * Throw an IllegalStateException if not initialized.
   */
  static void assertInitialization() {
    if (!sIsInitialized) {
      throw new IllegalStateException("Do you forget to initialize XLog?");
    }
  }

  /**
   * Start to customize a {@link Logger} and set the log level.