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>