06-按钮Button

监听按钮点击和长按触发事件

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<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"     android:layout_width="match_parent"     android:layout_height="match_parent"     android:orientation="vertical"> <Button     android:id="@+id/btn_click"     android:layout_width="200dp"     android:layout_height="100dp"     android:layout_gravity="center"     android:gravity="center"     android:background="@color/colorAccent"     android:text="按钮"/> </LinearLayout>