Android Relative Layout循环依赖项错误

Question

嗨我试图创建一个自定义布局,但我正在努力让它正常工作,我得到一个错误"circluar依赖关系不能存在于相对布局"

下面是我试图在布局的termas中实现什么,然后用数据填充每个文本字段.

date                number
name   score - score  name
scorers              scorers

继承人我的尝试

<?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="wrap_content"
    android:background="@color/white"
    android:paddingTop="30dp"
    android:paddingBottom="30dp" >



    <TextView
        android:id="@+id/TextView04"
        android:layout_width="20dp"
        android:layout_height="20dp"
        android:layout_below="@+id/HomeScore"
        android:layout_centerVertical="true" 
        android:layout_centerHorizontal="true" 
        android:text="-"
        android:textAppearance="?android:attr/textAppearanceMedium"
        android:textColor="@color/blue"
        android:textStyle="bold" />

    <TextView
        android:id="@+id/AwayTeam"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignBaseline="@+id/TextView04"
        android:layout_alignBottom="@+id/TextView04"
        android:layout_alignParentRight="true"
        android:layout_marginRight="22dp"
        android:gravity="left"
        android:text="Small Text"
        android:textAppearance="?android:attr/textAppearanceMedium"
        android:textColor="@color/blue"
        android:textStyle="bold" />

    <TextView
        android:id="@+id/HomeTeam"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignBaseline="@+id/TextView04"
        android:layout_alignBottom="@+id/TextView04"
        android:layout_toRightOf="@+id/HomeScore"
        android:gravity="right"
        android:text="Small Text"
        android:textAppearance="?android:attr/textAppearanceMedium"
        android:textColor="@color/blue"
        android:textStyle="bold" />

    <TextView
        android:id="@+id/Attendance"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignRight="@+id/AwayTeam"
        android:layout_alignTop="@+id/HomeScore"
        android:text="Small Text"
        android:textAppearance="?android:attr/textAppearanceSmall" />

    <TextView
        android:id="@+id/Division"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignBottom="@+id/textView1"
        android:layout_toRightOf="@+id/HomeScore"
        android:text="Small Text"
        android:textAppearance="?android:attr/textAppearanceSmall" />

    <TextView
        android:id="@+id/AwayScore"
        android:layout_width="20dp"
        android:layout_height="wrap_content"
        android:layout_alignBaseline="@+id/TextView04"
        android:layout_alignBottom="@+id/TextView04"
        android:layout_toRightOf="@+id/TextView04"
        android:textAppearance="?android:attr/textAppearanceMedium"
        android:textColor="@color/blue"
        android:textStyle="bold" />

    <TextView
        android:id="@+id/HomeScore"
        android:layout_width="20dp"
        android:layout_height="wrap_content"

        android:layout_alignBottom="@+id/TextView04"
        android:layout_marginRight="15dp"
        android:layout_toLeftOf="@+id/TextView04"
        android:textAppearance="?android:attr/textAppearanceMedium"
        android:textColor="@color/blue"
        android:textStyle="bold" />

</RelativeLayout>

继承人的错误

06-06 14:42:44.348: E/AndroidRuntime(1167): java.lang.IllegalStateException: Circular dependencies cannot exist in RelativeLayout
06-06 14:42:44.348: E/AndroidRuntime(1167):     at android.widget.RelativeLayout$DependencyGraph.getSortedViews(RelativeLayout.java:1272)
06-06 14:42:44.348: E/AndroidRuntime(1167):     at android.widget.RelativeLayout.sortChildren(RelativeLayout.java:281)
06-06 14:42:44.348: E/AndroidRuntime(1167):     at android.widget.RelativeLayout.onMeasure(RelativeLayout.java:303)
06-06 14:42:44.348: E/AndroidRuntime(1167):     at android.view.View.measure(View.java:8526)
06-06 14:42:44.348: E/AndroidRuntime(1167):     at android.widget.ListView.measureScrapChild(ListView.java:1153)
06-06 14:42:44.348: E/AndroidRuntime(1167):     at android.widget.ListView.measureHeightOfChildren(ListView.java:1266)
06-06 14:42:44.348: E/AndroidRuntime(1167):     at android.widget.ListView.onMeasure(ListView.java:1127)
06-06 14:42:44.348: E/AndroidRuntime(1167):     at android.view.View.measure(View.java:8526)
06-06 14:42:44.348: E/AndroidRuntime(1167):     at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:3224)
06-06 14:42:44.348: E/AndroidRuntime(1167):     at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1017)
06-06 14:42:44.348: E/AndroidRuntime(1167):     at android.widget.TableLayout.measureChildBeforeLayout(TableLayout.java:456)
06-06 14:42:44.348: E/AndroidRuntime(1167):     at android.widget.LinearLayout.measureVertical(LinearLayout.java:386)

Answer 1

那么,你有一些问题:

1. TextView04声明android:layout_below="@+id/HomeScore"和android:layout_centerVertical="true"哪个冲突

2. AwayTeam声明android:layout_alignBaseline="@+id/TextView04"和android:layout_alignBottom="@+id/TextView04"哪个冲突

3. HomeTeam声明android:layout_alignBaseline="@+id/TextView04"和android:layout_alignBottom="@+id/TextView04"哪个冲突

4. AwayScore声明android:layout_alignBaseline="@+id/TextView04"和android:layout_alignBottom="@+id/TextView04"哪个冲突

正如萨米尔指出的那样,至少有一个循环依赖关系在TextView04和之间HomeScore.TextView04说它在下面HomeScore,并HomeScore说它的底部与底部对齐TextView04.但是,我上面提到的其他一些也可能会产生循环依赖.确保两个小部件不会尝试在同一轴上相互约束(如TextView04和中HomeScore).

Answer 2

android:layout_below="@+id/HomeScore"从TextView布局中的第一个中删除它会创建循环依赖项.

为什么？

因为您android:layout_alignBottom="@+id/TextView04"在Textview中设置了id为. android:id="@+id/HomeScore"并且第一个Textview(TextView04)也有android:layout_below="@+id/HomeScore".

 <TextView
        android:id="@+id/TextView04"
        android:layout_width="20dp"
        android:layout_height="20dp"
        android:layout_centerVertical="true" 
        android:layout_centerHorizontal="true" 
        android:text="-"
        android:textAppearance="?android:attr/textAppearanceMedium"
        android:textColor="@color/blue"
        android:textStyle="bold" />