Android 来自 xml 选择器的填充图像
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padding image from xml selector
提问by user1592470
I'm trying to padd my button background image of my main menu (I'm using a selector for the different states), doing it on this way (buttoninicio_custom.xml):
我正在尝试填充我的主菜单的按钮背景图像（我正在使用不同状态的选择器），以这种方式（buttoninicio_custom.xml）：
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:drawable="@drawable/botoninicial_pressed"
android:state_pressed="true">
<padding
android:left="10dp"
android:top="10dp"
android:right="10dp"
android:bottom="10dp" />
</item>
<item android:drawable="@drawable/botoninicial_pressed"
android:state_focused="true">
<padding
android:left="10dp"
android:top="10dp"
android:right="10dp"
android:bottom="10dp" />
</item>
<item android:drawable="@drawable/botoninicial">
<padding
android:left="10dp"
android:top="10dp"
android:right="10dp"
android:bottom="10dp" />
</item>
</selector>
..but the padding has no effect. What I should do to solve this problem??
..但填充没有效果。我应该怎么做才能解决这个问题？？
I already used "bitmap" tag inside each "item" tag with the padding inside, but it's still doing anything!!!
我已经在每个带有填充的“item”标签中使用了“bitmap”标签，但它仍然在做任何事情！！！
My main button looks this way:
我的主按钮看起来像这样：
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center_horizontal"
android:orientation="horizontal" >
<Button
android:id="@+id/button2"
android:layout_width="180dp"
android:layout_height="50dp"
android:layout_marginBottom="15dp"
android:textSize="16sp"
android:textColor="#FFFFFF"
android:background="@drawable/buttoninicio_custom"
android:text="@string/idmMENU2" />
</LinearLayout>
"Because if I set android:padding inside the "button" tag, it pads me the text not the background image... The problem it's that when I pressed the main button: My image background change correctly but the new image appear cut."
“因为如果我在“按钮”标签内设置 android:padding，它会填充文本而不是背景图像......问题是当我按下主按钮时：我的图像背景正确更改，但新图像出现剪切。 ”
回答by Oliv
Wrap it in a layer-list:
将它包裹在一个layer-list：
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item
android:bottom="3dp"
android:left="3dp"
android:right="3dp"
android:top="1dp">
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<!-- your original selector content -->
</selector>
</item>
</layer-list>
回答by karn
paddingattribute is of no use under the tag item. If you press ctrl+space(autocomplete) then android won't suggest using this tag though android won't give any error. You can define padding when you are creating a shape drawable.Something like this:
padding属性在标签item下没有用。如果您按 ctrl+space(autocomplete) 则 android 不会建议使用此标签，尽管 android 不会给出任何错误。您可以在创建可绘制形状时定义填充。像这样：
<item android:state_pressed="true">
<shape >
<solid
android:color="#2c68e7" />
<stroke
android:width="1dp"
android:color="#2c68e7" />
<corners
android:radius="4dp" />
<padding
android:left="10dp"
android:right="10dp"
android:top="10dp"
android:bottom="10dp" />
</shape>
</item>
But you cannot use an image resource in the shape drawable.
但是您不能在可绘制形状中使用图像资源。
The better solution would be to use images of same size and dimension for the view.
更好的解决方案是为视图使用相同大小和尺寸的图像。
