android LinearLayout - ImageView被推离屏幕

Question

我使用下面发布的布局通过将该布局作为一行扩展到ListView来显示消息.问题是它可以使用单行消息正常工作,但当有2行或更多行ImageView指示消息状态被推离屏幕时,无法得到原因.有任何想法吗？布局代码和截图如下.

这是膨胀的布局:

    <?xml version="1.0" encoding="utf-8"?>
   <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/RelativeLayout1"
    android:layout_width="match_parent"
   android:layout_height="match_parent"
    android:padding="5dp" >

<TextView
    android:id="@+id/tvTimestamp"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignParentBottom="true"
    android:layout_alignParentLeft="true"
    android:text="TextView"
    android:textAppearance="?android:attr/textAppearanceSmall"
    android:textSize="8sp" />

<LinearLayout
    android:id="@+id/rl_message_holder"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignParentBottom="true"
    android:layout_marginLeft="5dp"
    android:layout_marginRight="5dp"
    android:layout_toRightOf="@+id/tvTimestamp"
    android:background="@drawable/outgoing_bg"

    android:orientation="horizontal" >

    <TextView
        android:id="@+id/tvMessageOutgoing"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:padding="4dp"
        android:text="Medium Text"
        android:textAppearance="?android:attr/textAppearanceMedium" />

    <ImageView
        android:id="@+id/imgMessageState"
        android:layout_width="20dp"
        android:layout_height="20dp"
        android:layout_gravity="bottom"
        android:src="@drawable/ic_launcher" />

  </LinearLayout>

 </RelativeLayout>

Answer 1

改变你的线性布局宽度fill_parent

并在textview中添加android:layout_weight ="1"

Answer 2

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/RelativeLayout1"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="horizontal"
    android:padding="5dp" >

    <TextView
        android:id="@+id/tvTimestamp"
        android:layout_width="0dp"
        android:layout_height="match_parent"
        android:layout_weight="20"
        android:gravity="center_vertical"
        android:text="10:20pm"
        android:textAppearance="?android:attr/textAppearanceSmall"
        android:textSize="8sp" />

    <RelativeLayout
        android:id="@+id/rl_message_holder"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_weight="80" >

        <TextView
            android:id="@+id/tvMessageOutgoing"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_toLeftOf="@+id/imgMessageState"
            android:padding="4dp"
            android:singleLine="false"
            android:text="android developer tutorial in the world"
            android:textAppearance="?android:attr/textAppearanceMedium" />

        <ImageView
            android:id="@+id/imgMessageState"
            android:layout_width="20dp"
            android:layout_height="20dp"
            android:layout_alignParentRight="true"
            android:layout_centerVertical="true"
            android:layout_gravity="bottom"
            android:contentDescription="@string/app_name"
            android:src="@drawable/ic_launcher" />
    </RelativeLayout>

</LinearLayout>