Question

我希望TextView高度根据它包含的文本数量自动重新设置。

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >

<TextView
    android:id="@+id/textView1"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:background="@color/red"
    android:gravity="center"
    android:text="COOK COMMENT"
    android:textAppearance="?android:attr/textAppearanceMedium"
    android:textColor="@color/white" />

<LinearLayout
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_marginTop="5dp"
    android:background="@color/white"
    android:orientation="vertical" >

    <TextView
        android:id="@+id/textView2"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_marginLeft="10dp"
        android:layout_marginRight="10dp"
        android:layout_marginTop="5dp"
        android:text="@string/longtext"
        android:textColor="@color/black" />
</LinearLayout>

</LinearLayout>

例如，当textView2应该自动缩放而不是linearLayout高度应该改变它。

Answer 1

使用android:layout_height="wrap_content"并确保将TextView嵌套在ScrollView内。

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >

<TextView
    android:id="@+id/textView1"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:background="@color/red"
    android:gravity="center"
    android:text="COOK COMMENT"
    android:textAppearance="?android:attr/textAppearanceMedium"
    android:textColor="@color/white" />

<ScrollView
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_marginTop="5dp"
    android:background="@color/white"
    android:orientation="vertical" >

    <TextView
        android:id="@+id/textView2"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginLeft="10dp"
        android:layout_marginRight="10dp"
        android:layout_marginTop="5dp"
        android:text="@string/longtext"
        android:textColor="@color/black" />
</ScrollView>

</LinearLayout>

Answer 2

将以下代码添加到控制视图的Activity：

textView2.setOnEditorActionListener(new OnEditorActionListener() {
        @Override
        public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
            v.setLines(v.getLineCount());
            return true;
        }
    });

您还可以自定义代码，以行单位设置最小或最大高度。

Android - Autoscale TextView高度取决于文本

2 个答案: