Android XML：当TextView包含另一个TextView时使用ellipsize？

Question

如设计中所示，我需要一个TextView，它在遇到另一个TextView时会进行椭圆化（让我们暂时忘记小箭头图像）。 “展开”按钮位于底部，而容器的最大高度是固定的。

我发布的代码在TextViews重叠时暂时不起作用。请提出修改建议。

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/expandable"
    tools:context="akshay.expandableview.MainActivity"
    android:layout_width="208dp"
    android:layout_height="wrap_content"
    android:maxHeight="204dp"
    android:background="#abcdef"
    android:padding="8dp">

    <TextView
        android:id="@+id/content"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textSize="16dp"
        android:lineSpacingMultiplier="1.2"
        android:textColor="#000"
        android:ellipsize="end"
        android:maxLines="8"
        android:text="It is a long established fact that a reader will be distracted by the readable content of a page when looking at its layout. The point of using Lorem Ipsum is that it has a more-or-less normal distribution of letters, as opposed to using 'Content here, content here', making it look like readable English. Many desktop publishing packages and web page editors now use Lorem Ipsum as their default model text, and a search for 'lorem ipsum' will uncover many web sites still in their infancy. Various versions have evolved over the years, sometimes by accident, sometimes on purpose (injected humour and the like)."/>

    <TextView
        android:id="@+id/expand_btn"
        android:layout_width="70dp"
        android:layout_height="20dp"
        android:background="#fedcba"
        android:layout_alignBottom="@+id/content"
        android:layout_alignParentRight="true"
        android:text="Expand"
        android:gravity="center"/>

</RelativeLayout>

Answer 1

您可以检查TextView是否已经过化验：

boolean isElipsized = false;
Layout layout = textview1.getLayout();
if(layout != null) {
    int lines = layout.getLineCount();
    if(lines > 0) {
        int ellipsisCount = layout.getEllipsisCount(lines-1);
        if (ellipsisCount > 0) {
            isElipsized = true;
        } 
    } 
}

if(isElipsized) {
    //show the "show more" view
}

要围绕另一个TextView流动一个TextView，您可以使用this问题