我已经有按钮:
<按钮
机器人:layout_height =WRAP_CONTENT
机器人:layout_width =FILL_PARENT
机器人:drawableLeft =@可绘制/空
机器人:ID =@ + ID / buttonMyText
机器人:文本=会将myText
机器人:TEXTSIZE =20像素
机器人:重力=左>
< /按钮>
我有空图标显示的按钮,程序启动时。
我想要做的就是从我的基于用户输入code(低,中,高)自动更改按钮的图标
我想:
按钮myButton的= BLA BLA ... ...喇嘛...
不过,我无法弄清楚
myButton的。(是什么?)
解决方案
如果您检查文档,你会看到code相当于每个XML属性。
下面参见:http://developer.android.com/reference/android/widget/Button.html
搜索 drawableLeft
显示:
机器人:drawableLeft:
setCompoundDrawablesWithIntrinsicBounds(可绘制,绘制对象,可绘制,绘制对象)
I already have the button:
<Button
android:layout_height="wrap_content"
android:layout_width="fill_parent"
android:drawableLeft="@drawable/empty"
android:id="@+id/buttonMyText"
android:text=" myText"
android:textSize="20px"
android:gravity="left">
</Button>
I have the "empty" icon show on the button when the program starts.
What I want to do is change the button's icon automatically from my code (low, medium and high) based on user inputs
I tried:
Button myButton = bla... bla... bla...
But I cant figure out
myButton.(what?)
解决方案
If you check the docs, you'll see the code equivalent for each XML attribute.
See here: http://developer.android.com/reference/android/widget/Button.html
Searching for drawableLeft
shows:
android:drawableLeft:
setCompoundDrawablesWithIntrinsicBounds(Drawable,Drawable,Drawable,Drawable)