PickerView 
Android滚动选择器
使用方法
1. 添加依赖
注：${latestVersion}请替换为当前最新版本号，见releases。
gradle：
implementation 'com.github.duanhong169:picker-view:${latestVersion}'
maven：
<dependency>
<groupId>com.github.duanhong169</groupId>
<artifactId>picker-view</artifactId>
<version>${latestVersion}</version>
<type>pom</type>
</dependency>
2. 集成到项目中
2.1 集成PickerView
添加到layout文件中：
<top.defaults.view.PickerView
android:id="@+id/pickerView"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
使用列表作为数据源
List<Item> items = new ArrayList<>();
for (int i = 0; i < 42; i++) {
items.add(new Item("Item " + i));
}
pickerView.setItems(Item.sampleItems(), item -> textView.setText(item.getText()));
实现Adapter作为数据源
配置数据源：
PickerView.Adapter adapter = new PickerView.Adapter() {
@Override
public int getItemCount() {
return 42;
}
@Override
public String getText(int index) {
return "Item " + index;
}
};
pickerView.setAdapter(adapter);
监听选择事件：
pickerView.setOnSelectedItemChangedListener((pickerView, previousPosition, selectedItemPosition) ->
textView.setText(pickerView.getAdapter().getText(selectedItemPosition)));
2.2 集成DivisionPickerView
添加到layout文件中：
<top.defaults.view.DivisionPickerView
android:id="@+id/divisionPicker"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:preferredMaxOffsetItemCount="4"
android:background="#e7e7e7"/>
构建省市区数据源：
设置数据源并监听选择事件
final List<DivisionModel> divisions = Divisions.get(this);
divisionPicker.setDivisions(divisions);
divisionPicker.setOnSelectedDateChangedListener(division -> textView.setText(Division.Helper.getCanonicalName(division)));
2.3 集成DateTimePickerView
添加到layout文件中：
<top.defaults.view.DateTimePickerView
android:id="@+id/datePickerView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:preferredMaxOffsetItemCount="3"
app:textSize="18sp"
app:type="dateTime"
app:minutesInterval="fifteen"
app:curved="true"
android:background="#e7e7e7"/>
设置初始日期：
dateTimePickerView.setStartDate(Calendar.getInstance());
// 注意：月份是从0开始计数的
dateTimePickerView.setSelectedDate(new GregorianCalendar(2017, 6, 27, 21, 30));
监听选择事件：
dateTimePickerView.setOnSelectedDateChangedListener(new DateTimePickerView.OnSelectedDateChangedListener() {
@Override
public void onSelectedDateChanged(Calendar date) {
int year = date.get(Calendar.YEAR);
int month = date.get(Calendar.MONTH);
int dayOfMonth = date.get(Calendar.DAY_OF_MONTH);
int hour = date.get(Calendar.HOUR_OF_DAY);
int minute = date.get(Calendar.MINUTE);
String dateString = String.format(Locale.getDefault(), "%d年%02d月%02d日%02d时%02d分", year, month + 1, dayOfMonth, hour, minute);
textView.setText(dateString);
Log.d(TAG, "new date: " + dateString);
}
});
更详细的使用方法请参见示例。
License
Copyright 2018 Hong Duan
Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.
