Android studio 花式按键

一、activity_main.xml代码：

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.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"
    android:backgroundTint="#D8A91B"
    tools:context=".MainActivity">

    <Button
        android:id="@+id/but1"
        android:layout_width="211dp"
        android:layout_height="60dp"
        android:layout_marginStart="16dp"
        android:layout_marginTop="32dp"
        android:layout_marginEnd="16dp"
        android:backgroundTint="#DAC82A"
        android:text="Button"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

    <Button
        android:id="@+id/but2"
        android:layout_width="211dp"
        android:layout_height="60dp"
        android:layout_marginStart="32dp"
        android:layout_marginTop="16dp"
        android:layout_marginEnd="32dp"
        android:background="@drawable/round_corner"

        android:text="圆角Button"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/but1" />

    <Button
        android:id="@+id/but3"
        android:layout_width="211dp"
        android:layout_height="58dp"
        android:layout_marginStart="32dp"
        android:layout_marginTop="16dp"
        android:layout_marginEnd="32dp"
        android:background="@drawable/stroke"
        android:text="描边 Button"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/but2" />

    <Button
        android:id="@+id/but4"
        android:layout_width="211dp"
        android:layout_height="48dp"
        android:layout_marginStart="32dp"
        android:layout_marginTop="16dp"
        android:layout_marginEnd="32dp"
        android:background="@drawable/press_effect"
        android:text="按压 Button"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/but3" />

    <TextView
        android:id="@+id/textView"
        android:layout_width="212dp"
        android:layout_height="60dp"
        android:layout_marginStart="32dp"
        android:layout_marginTop="16dp"
        android:layout_marginEnd="32dp"
        android:gravity="center"
        android:text="Pattern buttons!"
        android:textColor="@color/red"
        android:textSize="16dp"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/but5" />

    <Button
        android:id="@+id/but5"
        android:layout_width="208dp"
        android:layout_height="48dp"
        android:layout_marginStart="32dp"
        android:layout_marginTop="16dp"
        android:layout_marginEnd="32dp"
        android:background="@drawable/gradient"
        android:text="Button"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/but4" />


</androidx.constraintlayout.widget.ConstraintLayout>

二、stroke.xml代码：

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle">

    <corners android:radius="20dp" />

    <stroke
        android:width="2dp"
        android:color="#22DD22"
        />

</shape>

三、round_corner.xml代码：

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle">

    <corners android:radius="20dp" />

    <solid android:color="#DC6D39" />

</shape>

四、press_effect.xml代码：

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:drawable="@color/clr_normal" android:state_pressed="false"/>
    <item android:drawable="@color/clr_pressed" android:state_pressed="true"/>
</selector>
五、运行效果：