2024年3月9日发(作者：)

1 package eviewdemo;

2

3 import patActivity;

4 import ;

5 import tItemAnimator;

6 import LayoutManager;

7 import erView;

8

9 import ist;

10 import ;

11

12 public class MainActivity extends AppCompatActivity {

13

14 private RecyclerView mRecyclerView;

15 private LinearLayoutManager mLinearLayoutManager;

16 private RecycleViewAdapter mRecycleViewAdapter;

17

18 private List mData;

19

20 @Override

21 protected void onCreate(Bundle savedInstanceState) {

22 te(savedInstanceState);

23 setContentView(ty_main);

24

25 bindViews();

26 initData();

27 //初始化线性布局管理器

28 mLinearLayoutManager = new LinearLayoutManager(this);

29 //设置布局管理器

30 outManager(mLinearLayoutManager);

31 mAnimator(new DefaultItemAnimator());

32 //初始化适配器

33 mRecycleViewAdapter = new RecycleViewAdapter(mData);

34 //设置适配器

35 pter(mRecycleViewAdapter);

36 }

37

38 private void bindViews() {

39 mRecyclerView = findViewById(e_view);

40 }

41

42 private void initData() {

43 mData = new ArrayList<>();

44 (new Item(r, "The Witcher 3: Wild Hunt"));

45 (new Item(, "Recore"));

46 (new Item(s, "Assassin's Creed Origins"));

47 (new Item(, "theHunter: Call of the Wild"));

48 }

49 }

Item布局：

1

2

3 xmlns:android="/apk/res/android"

4 xmlns:app="/apk/res-auto"

5 xmlns:tools="/tools"

6 android:orientation="vertical"

7 android:layout_width="match_parent"

8 android:layout_height="wrap_content"

9 android:layout_margin="4dp"

10 android:elevation="2dp"

11 android:background="@drawable/background_item">

12

13

14 android:id="@+id/image_view"

15 android:contentDescription="@null"

16 android:layout_width="0dp"

17 android:layout_height="235dp"

18 android:layout_margin="6dp"

19 tools:src="@drawable/witcher"

20 app:layout_constraintTop_toTopOf="parent"

21 app:layout_constraintStart_toStartOf="parent"

22 app:layout_constraintEnd_toEndOf="parent" />

23

24

25 android:id="@+id/text_title"

26 android:layout_width="wrap_content"

27 android:layout_height="wrap_content"

28 android:textSize="18sp"

29 android:textColor="#000000"

30 android:layout_margin="6dp"

31 android:paddingBottom="4dp"

32 app:layout_constraintTop_toBottomOf="@+id/image_view"

33 app:layout_constraintStart_toStartOf="parent"

34 app:layout_constraintBottom_toBottomOf="parent"

35 tools:text="The Witcher 3: Wild Hunt" />

36

37

MainActivity布局：

1

2

3 xmlns:app="/apk/res-auto"

4 xmlns:tools="/tools"

5 android:layout_width="match_parent"

6 android:layout_height="match_parent"

7 tools:context=".MainActivity">

8

9

10 android:id="@+id/toolbar"

11 android:layout_width="match_parent"

12 android:layout_height="48dp"

13 android:background="@color/colorPrimary"

14 android:elevation="5dp"

15 app:layout_constraintEnd_toEndOf="parent"

16 app:layout_constraintStart_toStartOf="parent"

17 app:layout_constraintTop_toTopOf="parent">

18

19

20 android:contentDescription="@null"

21 android:layout_width="36dp"

22 android:layout_height="36dp"

23 android:src="@drawable/icon" />

24

25

26 android:layout_width="wrap_content"

27 android:layout_height="wrap_content"

28 android:layout_gravity="center"

29 android:text="@string/app_name"

30 android:textColor="#FFFFFF"

31 android:textSize="18sp" />

32

33

34

35

36 android:id="@+id/recycle_view"

37 android:layout_width="0dp"

38 android:layout_height="0dp"

39 app:layout_constraintBottom_toBottomOf="parent"

40 app:layout_constraintEnd_toEndOf="parent"

41 app:layout_constraintStart_toStartOf="parent"

42 app:layout_constraintTop_toBottomOf="@+id/toolbar"

43 app:layout_constraintVertical_bias="1.0">

44

45

46

47