Android APP開發活用範例速查大辭典(Ch0108-利用XML來控制Button當按下時改變顯示顏色狀態)
GUI-XML
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<?xml version=”1.0″ encoding=”utf-8″?>
<LinearLayout xmlns:android=”http://schemas.android.com/apk/res/android”
android:layout_width=”fill_parent”
android:layout_height=”fill_parent”
android:gravity=”center_vertical”
android:orientation=”vertical” >
<Button
android:id=”@+id/buttonswitch”
android:layout_width=”fill_parent”
android:layout_height=”wrap_content”
android:background=”@drawable/ch0108_selector_button”
android:text=”狀態變化” />
</LinearLayout>
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GUI-ch0108_selector_button
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<?xml version=”1.0″ encoding=”utf-8″?>
<selector xmlns:android=”http://schemas.android.com/apk/res/android”>
<!– 一般時 –>
<item android:drawable=”@drawable/ch0108_bg_button_normal” android:state_pressed=”false”/>
<!– 按下時 –>
<item android:drawable=”@drawable/ch0108_bg_button_pressed” android:state_pressed=”true”/>
</selector>
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GUI-ch0108_bg_button_normal
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<?xml version=”1.0″ encoding=”utf-8″?>
<shape xmlns:android=”http://schemas.android.com/apk/res/android” >
<gradient
android:angle=”270″
android:endColor=”#1D62F0″
android:startColor=”#1AD6FD” />
<corners android:radius=”10dp” />
</shape>
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GUI-ch0108_bg_button_pressed
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<?xml version=”1.0″ encoding=”utf-8″?>
<shape xmlns:android=”http://schemas.android.com/apk/res/android” >
<gradient
android:angle=”270″
android:endColor=”#FF2A68″
android:startColor=”#FF5E3A” />
<corners android:radius=”10dp” />
</shape>
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