边界的图像视图在Android?

如何在Android中为ImageView设置边框并更改其颜色?

当前回答

添加以下代码到一个形状:

<gradient
    android:angle="135"
    android:endColor="#FF444444"
    android:centerColor="#FFAAAAAA"
    android:startColor="#FFFFFFFF"/>

ét瞧，你得到了一个(或多或少)缩进的边界，光源设置在左上方。调整位图的大小(相对于imageview的大小，我在示例中使用200dp x 200dp imageview和196dp x 196dp的位图，角的半径为14dp)和填充来获得最好的结果。切换结束和开始颜色的斜面效果。

下面是你在图片中看到的形状的完整代码(保存在res/drawable中，例如border_shape.xml):

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
    <gradient
        android:angle="135"
        android:endColor="#FF444444"
        android:centerColor="#FFAAAAAA"
        android:startColor="#FFFFFFFF"/>
    <padding
        android:top="2dp"
        android:left="2dp"
        android:right="2dp"
        android:bottom="2dp"/>
    <corners
        android:radius="30dp"/>
</shape>

然后像这样在imageview中调用它:

android:scaleType="center"    
android:background="@drawable/border_shape"
android:cropToPadding="true"
android:adjustViewBounds="true"

下面是圆角位图的代码:

Bitmap getRoundedRectBitmap(Bitmap bitmap, float radius) {
    Paint paint = new Paint();
    PorterDuffXfermode pdmode = new PorterDuffXfermode(PorterDuff.Mode.SRC_IN);
    Bitmap bm = Bitmap.createBitmap(bitmap.getWidth(), bitmap.getHeight(), Bitmap.Config.ARGB_8888);
    Canvas canvas = new Canvas(bm);
    Rect rect = new Rect(0, 0, bitmap.getWidth(), bitmap.getHeight());
    RectF rectF = new RectF(rect);
    canvas.drawARGB(0, 0, 0, 0);
    paint.setColor(0xff424242);
    canvas.drawRoundRect(rectF, radius, radius, paint);
    paint.setXfermode(pdmode);
    canvas.drawBitmap(bitmap, rect, rect, paint);
    return bm;
}

2020-12-26 03:54:34

其他回答

对于那些正在搜索自定义边界和形状的ImageView。你可以使用android-shape-imageview

只需添加compile 'com.github.siyamed:android-shape-imageview:0.9。+@aar'到build.gradle。

并使用在你的布局。

<com.github.siyamed.shapeimageview.BubbleImageView
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:src="@drawable/neo"
    app:siArrowPosition="right"
    app:siSquare="true"/>

2018-07-11 09:18:19

只需在ImageView中添加以下代码:

<?xml version="1.0" encoding="utf-8"?>
<shape
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="oval">

    <solid
        android:color="@color/white"/>

    <size
        android:width="20dp"
        android:height="20dp"/>
    <stroke
        android:width="4dp" android:color="@android:color/black"/>
    <padding android:left="1dp" android:top="1dp" android:right="1dp"
        android:bottom="1dp" />
</shape>

2020-09-04 16:57:10

我将下面的xml设置为可绘制的图像视图的背景。它的工作原理。

<?xml version="1.0" encoding="UTF-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
    <solid android:color="#FFFFFF" />
    <stroke android:width="1dp" android:color="#000000" />
    <padding android:left="1dp" android:top="1dp" android:right="1dp"
        android:bottom="1dp" />
</shape>

然后添加android:background="@drawable/yourXmlFileName"到你的ImageView

2010-07-16 11:02:21

下面是我对这个漫长麻烦的最简单的解决方案。

<FrameLayout
    android:layout_width="112dp"
    android:layout_height="112dp"
    android:layout_marginLeft="16dp" <!-- May vary according to your needs -->
    android:layout_marginRight="16dp" <!-- May vary according to your needs -->
    android:layout_centerVertical="true">
    <!-- following imageView acts as the boarder which sitting in the background of our main container ImageView -->
    <ImageView
        android:layout_width="112dp"
        android:layout_height="112dp"
        android:background="#000"/>
    <!-- following imageView holds the image as the container to our image -->
    <!-- layout_margin defines the width of our boarder, here it's 1dp -->
    <ImageView
        android:layout_width="110dp"
        android:layout_height="110dp"
        android:layout_margin="1dp"
        android:id="@+id/itemImageThumbnailImgVw"
        android:src="@drawable/banana"
        android:background="#FFF"/> </FrameLayout>

在下面的答案中，我已经解释得很好了，请大家也看看!

我希望这将有助于其他人在那里!

2015-06-19 06:48:05