为什么我会收到一个CircularDependencyException？

问题描述

嘿，我想使一个通知我的文件上传通知。这是我的XML：但它不断给我的错误：循环依赖不能RelativeLayout的存在。我究竟做错了什么？我看不出什么错？我也想使它看起来类似于浏览器下载

 ＆LT; XML版本=1.0编码=UTF-8＆GT？;
＆LT; RelativeLayout的
    的xmlns：机器人=htt​​p://schemas.android.com/apk/res/android
    机器人：layout_width =FILL_PARENT
    机器人：layout_height =FILL_PARENT
    机器人：填充=5DP＆GT;

    ＆LT; RelativeLayout的
        机器人：layout_width =FILL_PARENT
        机器人：layout_height =FILL_PARENT
        机器人：ID =@ + ID /左
        机器人：layout_toLeftOf =@ + ID /右＆GT;

        ＆LT; ImageView的
            机器人：ID =@ + ID / status_icon
            机器人：layout_width =WRAP_CONTENT
            机器人：layout_height =WRAP_CONTENT
            机器人：layout_alignParentTop =真
        /＆GT;

        ＆LT;的TextView
            机器人：ID =@ + ID / progress_text
            机器人：layout_width =FILL_PARENT
            机器人：layout_height =WRAP_CONTENT
            机器人：layout_below =@ + ID / status_icon
            机器人：文本=0％
        /＆GT;


    ＆LT; / RelativeLayout的＆GT;

    ＆LT; RelativeLayout的
        机器人：layout_width =FILL_PARENT
        机器人：layout_height =FILL_PARENT
        机器人：ID =@ + ID /右
        机器人：layout_toRightOf =@ + ID /左＆GT;

        ＆LT;的TextView
            机器人：ID =@ + ID / STATUS_TEXT
            机器人：layout_width =FILL_PARENT
            机器人：layout_height =WRAP_CONTENT
            机器人：layout_alignParentTop =真
        /＆GT;

        ＆LT;进度
            机器人：ID =@ + ID / status_progress
            机器人：layout_width =FILL_PARENT
            机器人：layout_height =WRAP_CONTENT
            机器人：layout_below =@ ID / STATUS_TEXT
            机器人：progressDrawable =@机器人：可绘制/ progress_horizo​​ntal
            机器人：不确定=假
            机器人：indeterminateOnly =假
        /＆GT;
    ＆LT; / RelativeLayout的＆GT;
＆LT; / RelativeLayout的＆GT;
 

解决方案

RelativeLayout的左的尝试基础上，RelativeLayout的正确的位置打下自行解决。这不能做，因为作为异常说，它的圆。你怎么能停放一辆车的基础上另外一辆车的停车位，如果这辆车还在动？

根据您的XML文件

，我建议您使用的LinearLayout 秒。是不是真的有什么，你在这里做，不能用两个LL的和父RelativeLayout的。

解决

Hey I am trying to make a notification for my file uploading notification. This is my XML: but it keeps giving me the error: Circular dependencies cannot exist in RelativeLayout. What am I doing wrong? I dont see anything wrong with it? I was also trying to make it look similar to the browser downloader

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:padding="5dp">

    <RelativeLayout
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:id="@+id/left"
        android:layout_toLeftOf="@+id/right">

        <ImageView
            android:id="@+id/status_icon"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentTop="true"
        />

        <TextView
            android:id="@+id/progress_text"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:layout_below="@+id/status_icon"
            android:text="0%"
        />


    </RelativeLayout>

    <RelativeLayout
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:id="@+id/right"
        android:layout_toRightOf="@+id/left">

        <TextView
            android:id="@+id/status_text"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:layout_alignParentTop="true"
        />

        <ProgressBar
            android:id="@+id/status_progress"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:layout_below="@id/status_text"
            android:progressDrawable="@android:drawable/progress_horizontal"
            android:indeterminate="false"
            android:indeterminateOnly="false"
        />
    </RelativeLayout>
</RelativeLayout>

解决方案

RelativeLayout "left" is trying to lay itself out based on the location of RelativeLayout "right". This cannot be done, because as the exception says, it's circular. How can you park a car based on the parking of another car if that car is still moving?

Based on your xml file, I recommend you use LinearLayouts. There really isn't anything that you are doing here that can't be solved with two LL's and the parent RelativeLayout.

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