开发中的点点滴滴 2018-03-30
以下为ListView完整例子:
1、activity_address_list.xml
<?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent"> <include layout="@layout/title"></include> <ListView android:id="@+id/address_list_view" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_marginTop="45dp" android:layout_marginBottom="50dp"> </ListView> <LinearLayout android:layout_width="match_parent" android:layout_height="50dp" android:layout_alignParentBottom="true"> <Button android:layout_width="match_parent" android:layout_height="match_parent" android:background="#45bf23" android:textColor="@color/white" android:text="添加新地址" android:textSize="16dp"/> </LinearLayout> </RelativeLayout
2、item_address.xml
<?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:background="@color/white"> <TextView android:id="@+id/item_address_txt" android:layout_width="wrap_content" android:layout_height="wrap_content" android:textSize="@dimen/textsize_14dp" android:textColor="@color/text_color" android:layout_marginLeft="20dp" android:layout_marginTop="15dp" android:text="[默认]"/> <TextView android:id="@+id/item_address_name" android:layout_width="wrap_content" android:layout_height="wrap_content" android:textSize="@dimen/textsize_14dp" android:textColor="@color/text_color" android:layout_toRightOf="@+id/item_address_txt" android:layout_marginLeft="5dp" android:layout_marginTop="15dp" android:text="刘智"/> <TextView android:id="@+id/item_address_phone" android:layout_width="wrap_content" android:layout_height="wrap_content" android:textSize="@dimen/textsize_14dp" android:textColor="@color/text_color" android:layout_alignParentRight="true" android:layout_marginTop="15dp" android:layout_marginRight="20dp" android:text="18711865875"/> <TextView android:id="@+id/item_address" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginLeft="20dp" android:layout_marginTop="40dp" android:textColor="@color/default_text_color" android:textSize="@dimen/textsize_12dp" android:text="湖南省长沙市" /> <!-- line 1--> <ImageView android:layout_width="match_parent" android:layout_height="0.5dp" android:background="@color/eeeeee_color" android:layout_marginTop="75dp"/> <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_marginTop="80dp" android:background="@color/white"> <Button android:layout_width="wrap_content" android:layout_height="43dp" android:layout_weight="1" android:textSize="13dp" android:background="@null" android:text="编辑"/> <ImageView android:layout_width="1dp" android:layout_height="15dp" android:layout_gravity="center_vertical" android:background="@color/eeeeee_color" android:layout_weight="0"/> <Button android:layout_width="wrap_content" android:layout_height="43dp" android:layout_weight="1" android:textSize="13dp" android:background="@null" android:text="设为默认"/> </LinearLayout> <!-- line 2--> <ImageView android:layout_width="match_parent" android:layout_height="10dp" android:background="@color/eeeeee_color" android:layout_marginTop="127dp"/> </RelativeLayout>
3、AddressAdapter.java
import java.util.ArrayList; import java.util.List; /** * 地址Adapter * Created by dwen on 2018/3/30. */ public class AddressAdapter extends BaseAdapter { List<AddressModel> addressList = new ArrayList<AddressModel>(); Context context; public AddressAdapter( Context context,List<AddressModel> addressList) { this.addressList = addressList; this.context = context; } @Override public int getCount() { return this.addressList.size(); } @Override public Object getItem(int position) { return this.addressList.get(position); } @Override public long getItemId(int position) { return position; } @Override public View getView(int position, View convertView, ViewGroup parent) { final ViewHolder holder; AddressModel addressModel = addressList.get(position); if (null == convertView){ convertView = LayoutInflater.from(context).inflate(R.layout.item_address,null); holder = new ViewHolder(convertView); holder.txtDefault = convertView.findViewById(R.id.item_address_txt); holder.txtName = convertView.findViewById(R.id.item_address_name); holder.txtPhone = convertView.findViewById(R.id.item_address_phone); holder.txtAddress = convertView.findViewById(R.id.item_address); //TODO 须判断 是否显示隐藏"默认" holder.txtDefault.setText("[默认]"); holder.txtName.setText(addressModel.getName()); holder.txtPhone.setText(addressModel.getPhone()); holder.txtAddress.setText(addressModel.getAddress()); convertView.setTag(holder); }else{ //直接通过holder获取子控件,不必使用findviewbyid,加快了 UI 的响应速度 holder = (ViewHolder) convertView.getTag(); //TODO 须判断 是否显示隐藏"默认" holder.txtDefault.setText("[默认]"); holder.txtName.setText(addressModel.getName()); holder.txtPhone.setText(addressModel.getPhone()); holder.txtAddress.setText(addressModel.getAddress()); } return convertView; } /** * ViewHolder save view and speed UI */ static class ViewHolder{ TextView txtDefault,txtName,txtPhone,txtAddress; public ViewHolder() { } public ViewHolder(View view) { } } }
4、AddressListActivity.java
import java.util.ArrayList; import java.util.List; /** * 收货地址 * Created by dwen on 2018/3/30. */ public class AddressListActivity extends BaseActivity { private List<AddressModel> addressList = new ArrayList<>(); private ListView listView; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_address_list); this.initAddressList(); listView = (ListView) findViewById(R.id.address_list_view); AddressAdapter adapter = new AddressAdapter(AddressListActivity.this,addressList); listView.setAdapter(adapter); } /** * test address */ private void initAddressList(){ AddressModel model = new AddressModel(); model.setIsDefault(1); model.setName("测试001"); model.setPhone("13900000000"); model.setAddress("湖南省长沙市湖南省长沙市"); addressList.add(model); AddressModel model2 = new AddressModel(); model2.setIsDefault(1); model2.setName("测试002"); model2.setPhone("13900000000"); model2.setAddress("湖南省长沙市湖南省长沙市"); addressList.add(model2); AddressModel model3 = new AddressModel(); model3.setIsDefault(1); model3.setName("测试003"); model3.setPhone("13900000000"); model3.setAddress("湖南省长沙市湖南省长沙市"); addressList.add(model3); AddressModel model4 = new AddressModel(); model4.setIsDefault(1); model4.setName("测试004"); model4.setPhone("13900000000"); model4.setAddress("湖南省长沙市湖南省长沙市"); addressList.add(model4); AddressModel model5 = new AddressModel(); model4.setIsDefault(1); model4.setName("测试005"); model4.setPhone("13900000000"); model4.setAddress("湖南省长沙市湖南省长沙市"); addressList.add(model4); } }
示例展示如下: