android滾動布局，Android ScrollView 實現整個界面變成列表

效果圖：


activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout 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=".MainActivity"><ScrollViewandroid:layout_width="match_parent"android:layout_height="wrap_content"><LinearLayoutandroid:layout_width="match_parent"android:layout_height="wrap_content"android:orientation="vertical"><TextViewandroid:id="@+id/tv_show"android:layout_width="wrap_content"android:layout_height="wrap_content"android:layout_gravity="center"android:textSize="40dp"android:text="你好"/></LinearLayout></ScrollView></RelativeLayout>

MainActivity.java

public class MainActivity extends AppCompatActivity {String info = "";@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);TextView textView = findViewById(R.id.tv_show);for (int i = 0; i<30;i++){info += "你好 " + i + "\n";}textView.setText(info);}
}

ScrollView 必須只能包含一個布局