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btn_normal.xml文件:
- <?xml version="1.0" encoding="utf-8"?>
- <shape
- xmlns:android="http://schemas.android.com/apk/res/android"
- android:shape="rectangle">
-
- <!-- 圆角的半径 -->
- <corners android:radius="10dp"/>
-
- <!-- 填充颜色 -->
- <solid android:color="#3a8fea"/>
-
- </shape>
btn_pressed.xml文件:
- <?xml version="1.0" encoding="utf-8"?>
- <shape
- xmlns:android="http://schemas.android.com/apk/res/android"
- android:shape="rectangle">
-
- <!-- 圆角的半径 -->
- <corners android:radius="10dp"/>
-
- <!-- 填充颜色 -->
- <solid android:color="#0662f5"/>
-
- </shape>
2.在res/drawable目录下新建样式文件 btn_selector.xml 文件,定义按钮的不同状态样式。
btn_selector.xml文件:
- <?xml version="1.0" encoding="utf-8"?>
- <selector xmlns:android="http://schemas.android.com/apk/res/android">
-
- <!-- 正常状态 -->
- <item android:drawable="@drawable/btn_normal" android:state_pressed="false"/>
-
- <!-- 按下状态 -->
- <item android:drawable="@drawable/btn_pressed" android:state_pressed="true"/>
-
- </selector>
3.使用按钮样式。
- <?xml version="1.0" encoding="utf-8"?>
- <android.support.constraint.ConstraintLayout
- xmlns:android="http://schemas.android.com/apk/res/android"
- xmlns:app="http://schemas.android.com/apk/res-auto"
- xmlns:tools="http://schemas.android.com/tools"
- android:layout_width="match_parent"
- android:layout_height="match_parent"
- tools:context=".ButtonActivity">
-
- <Button
- android:id="@+id/btn1"
- android:layout_width="wrap_content"
- android:layout_height="wrap_content"
- android:layout_marginTop="30dp"
- android:layout_marginStart="30dp"
- android:text="button"
- android:textColor="#fff"
- android:background="@drawable/btn_selector"
- app:layout_constraintLeft_toLeftOf="parent"
- app:layout_constraintTop_toTopOf="parent" />
-
- </android.support.constraint.ConstraintLayout>
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