2020-05-06-3

陈嘉乐

2020-05-06 f11472b25796a83f70d526b13f2b0cba24c665f2

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<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="match_parent" android:layout_height="match_parent">
    <Button android:id="@+id/myButton" android:layout_width="match_parent" android:layout_height="wrap_content" android:text="@string/hello" />
</LinearLayout>