阶段一冲刺四

昨天任务

复习了RadioButton

CheckBox  imageview 以及gradle的使用

今天任务

学会列表视图Listview

 

public class ListviewActivity extends AppCompatActivity {
    private ListView list_1;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_listview);
        list_1 = findViewById(R.id.list_1);
        list_1.setAdapter(new MyListAdapter(ListviewActivity.this));
        //设置点按事件
        list_1.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {
                //i代表的是当前被点击的是几号列表
            }
        });
        //设置长按事件
        list_1.setOnItemLongClickListener(new AdapterView.OnItemLongClickListener() {
            @Override
            public boolean onItemLongClick(AdapterView<?> adapterView, View view, int i, long l) {
                return true;
            }
        });
    }
}
<?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="horizontal"
    android:padding="20dp">

    <ImageView
        android:id="@+id/List_Image"
        android:layout_width="200dp"
        android:layout_height="150dp"
        android:background="#000"
        android:scaleType="fitXY"
        android:src="@mipmap/bg"/>

    <LinearLayout
        android:id="@+id/List_Ly"
        android:layout_width="match_parent"
        android:layout_height="150dp"
        android:orientation="vertical">

        <TextView
            android:id="@+id/List_text1"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="hello"
            android:textColor="#FF0033"
            android:textSize="20sp"
            android:layout_marginTop="10dp"/>

        <TextView
            android:id="@+id/List_text2"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="简介"
            android:textColor="#FF0033"
            android:textSize="20sp"
            android:layout_marginTop="10dp"/>

        <TextView
            android:id="@+id/List_text3"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="2020.9.4"
            android:textColor="#FF0033"
            android:textSize="20sp"
            android:layout_marginTop="10dp"/>


    </LinearLayout>


</LinearLayout>

 

posted @ 2022-05-11 21:23  软工小蜗牛  阅读(70)  评论(0)    收藏  举报