Question

ImageReview背景在onResume时被压缩为最后一种尺寸

lateinit var bgImage: NinePatchDrawable

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_test_easy)

        bgImage = ContextCompat.getDrawable(this, R.drawable.tm_bg_special) as NinePatchDrawable

        iv1.background = bgImage
        iv2.background = bgImage
        iv3.background = bgImage
        iv4.background = bgImage

        // It works fine if I use drawable directly to each imageView
        iv1.background = ContextCompat.getDrawable(this, R.drawable.tm_bg_special) as NinePatchDrawable
        iv2.background = ContextCompat.getDrawable(this, R.drawable.tm_bg_special) as NinePatchDrawable
        iv3.background = ContextCompat.getDrawable(this, R.drawable.tm_bg_special) as NinePatchDrawable
        iv4.background = ContextCompat.getDrawable(this, R.drawable.tm_bg_special) as NinePatchDrawable
    }

如果我直接对每个imageView使用drawable，但我想存储Drawable，因为它在运行时在原始情况下会被读取，并且需要设置为大量imageView，因此我想存储Drawable

视觉上发生了什么...

参考xml

<LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="@color/colorPrimary"
        android:orientation="horizontal"
        android:layout_margin="5dp"
        android:visibility="visible"
        android:layout_alignParentBottom="true">

        <ImageView
            android:id="@+id/iv1"
            android:layout_width="90dp"
            android:padding="0dp"
            android:layout_height="wrap_content"/>

        <ImageView
            android:id="@+id/iv2"
            android:layout_width="50dp"
            android:padding="0dp"
            android:layout_gravity="center"
            android:layout_height="wrap_content"/>

        <ImageView
            android:id="@+id/iv3"
            android:layout_width="120dp"
            android:padding="0dp"
            android:layout_gravity="center"
            android:layout_height="wrap_content"/>

        <ImageView
            android:id="@+id/iv4"
            android:layout_width="20dp"
            android:padding="0dp"
            android:layout_gravity="center"
            android:layout_height="wrap_content"/>

    </LinearLayout>

Answer 1

我认为，当系统将bgImage设置为视图时，它将调整bgImage本身的大小。这意味着bgImage将使用最后分配给它的视图的大小。

您可以尝试查看所有图像是否变大：

    iv4.background = bgImage
    iv3.background = bgImage
    iv2.background = bgImage
    iv1.background = bgImage

在这种情况下，您可以创建四个NinePatchDrawable并重用它们。

存储的可绘制对象在Android中已更改

1 个答案: