直接使用ScrollView加个ImageView就可以了，非常简单

<?XMl version="1.0" encoding="utf-8"?> <LinearLayout 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:layout_width=";match_parent"     android:layout_height="wrap_content"     tools:context=".MainActivITy"> <ScrollView     android:layout_width="match_parent"     android:layout_height="match_parent"     android:scrollbars="none"     android:fillViewport="true">         <ImageView             android:id="@+id/iv"             android:layout_width="match_parent"             android:layout_height="wrap_content"             android:scaleTyPE="fitStart"             android:src="@drawable/a"             tools:ignore="MissingConstraints"             android:adjustViewBounds="true">         </ImageView> </ScrollView> </LinearLayout>

效果图