GamePlayActivity.java 文件源码

/**
 * Show an alert dialog to the user
 * @param messageId String id to display inside the alert dialog
 * @param optionalParam Optional attribute for the string
 */
@UiThread
void alert(@StringRes int messageId, @Nullable Object optionalParam) {
    if (Looper.getMainLooper().getThread() != Thread.currentThread()) {
        throw new RuntimeException("Dialog could be shown only from the main thread");
    }

    AlertDialog.Builder bld = new AlertDialog.Builder(this);
    bld.setNeutralButton("OK", null);

    if (optionalParam == null) {
        bld.setMessage(messageId);
    } else {
        bld.setMessage(getResources().getString(messageId, optionalParam));
    }

    bld.create().show();
}