两种button点击后改变颜色的方法selectot和重写
1.
mybutton_background.xml
<?xml version="1.0" encoding="utf-8"?>
<selector android="http://schemas.android.com/apk/res/android">
<item android:state_focused="true" android:state_pressed="false"
android:drawable="@drawable/button_background_focus" />
<item android:state_focused="true" android:state_pressed="true"
android:drawable="@drawable/button_background_pressed" />
<item android:state_focused="false" android:state_pressed="true"
android:drawable="@drawable/button_background_pressed" />
<item drawable="@drawable/button_background_normal">
</selector>
android:background="@drawable/mybutton_background"
?
2.
public class OnPressButton extends Button{
public OnPressButton(Context context) {
super(context);
}
public OnPressButton(Context context, AttributeSet attrs){
super(context, attrs);
}
@Override
protected void onDraw(Canvas canvas) {
//sets the button image based on whether the button in its pressed state
setBackgroundDrawable(getResources().getDrawable(isPressed()?R.drawable.btn_on : R.drawable.btn_off));
super.onDraw(canvas);
}
}?
<view
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="My Button" />?
这句话要注意android:background="@android:color/transparent"
也可以查看http://code.google.com/android/toolbox/custom-components.html
