【Android】ImageView宽固定,高自适应/高固定,宽自适应(正方形图片)

ImageView宽固定,高自适应/高固定,宽自适应

解决方法

​​宽固定,高自适应​​

<ImageView
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:maxWidth="0dp"
    android:maxHeight="1000dp"
    android:adjustViewBounds="true"/>

​​高固定,宽自适应​​

<ImageView
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:maxWidth="1000dp"
    android:maxHeight="0dp"
    android:adjustViewBounds="true"/>

也可以自己写个正方形的ImageView

class SquareImageView : AppCompatImageView {
    constructor(context: Context) : this(context, null)
    constructor(context: Context, attrs: AttributeSet?) : this(context, attrs, 0)
    constructor(context: Context, attrs: AttributeSet?, defStyleAttr: Int) : super(context, attrs, defStyleAttr) {}

    override fun onMeasure(widthMeasureSpec: Int, heightMeasureSpec: Int) {
        val width = MeasureSpec.getSize(widthMeasureSpec)
        val mheightMeasureSpec = MeasureSpec.makeMeasureSpec(width, MeasureSpec.EXACTLY)
        super.onMeasure(widthMeasureSpec, mheightMeasureSpec)
    }
}

​​怎么用? 结合dataBinding,glide,可美观了​​

<com.sq.module.view.SquareImageView
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_marginBottom="@dimen/library.icon.marginBottom"
    android:scaleType="centerCrop"
    app:imageUrl="@{item.images}"/>