java - 无法比较类型错误 : Object and int in Telegram

Question

我导入了Telegram存储库。并尝试运行该项目，但在 Passcodeview.java 文件中出现上述错误。它显示了此代码 fragment 中的错误

 @Override
protected void onLayout(boolean changed, int left, int top, int right, int bottom) {
    View rootView = getRootView();
    int usableViewHeight = rootView.getHeight() - AndroidUtilities.statusBarHeight - AndroidUtilities.getViewInset(rootView);
    getWindowVisibleDisplayFrame(rect);
    keyboardHeight = usableViewHeight - (rect.bottom - rect.top);

    if (UserConfig.passcodeType == 1 && (AndroidUtilities.isTablet() || getContext().getResources().getConfiguration().orientation != Configuration.ORIENTATION_LANDSCAPE)) {
        int t = 0;
        if (passwordFrameLayout.getTag() != 0) {
            t = (Integer) passwordFrameLayout.getTag();
        }
        LayoutParams layoutParams = (LayoutParams) passwordFrameLayout.getLayoutParams();
        layoutParams.topMargin = t + layoutParams.height - keyboardHeight / 2 - (Build.VERSION.SDK_INT >= 21 ? AndroidUtilities.statusBarHeight : 0);
        passwordFrameLayout.setLayoutParams(layoutParams);
    }

    super.onLayout(changed, left, top, right, bottom);
}

虽然同一个项目在我的另一台机器上正确运行一次，但我没有更改任何内容。

Answer 1

问题出在线上:if (passwordFrameLayout.getTag() != 0) {

getTag() 返回一个对象，不能将其与整数常量进行比较。相反，您应该检查标签是否不为空。如果您不确定标记始终是 Integer，您也应该检查 instanceof:

if (passwordFrameLayout.getTag() != null && passwordFrameLayout.getTag() instanceof Integer) {