Viewpager介绍
1.Viewpager，视图翻页工具，提供了多页面切换的效果。Android 3.0后引入的一个UI控件，位于v4包中。低版本使用需要导入v4包，但是现在我们开发的APP一般不再兼容3.0及以下的系统版本，另外现在大多数使用Android studio进行开发，默认导入v7包，v7包含了v4，所以不用导包，越来越方便了。
2.Viewpager使用起来就是我们通过创建adapter给它填充多个view，左右滑动时，切换不同的view。Google官方是建议我们使用Fragment来填充ViewPager的，这样 可以更加方便的生成每个Page，以及管理每个Page的生命周期。
3.ViewPager 直接继承了** ViewGroup**，所有它是一个容器类，可以在其中添加其他的 view 类。
ViewPager 需要一个** PagerAdapter 适配器类给它提供数据**。
ViewPager 经常和 Fragment 一起使用，并且提供了专门的 FragmentPagerAdapter 和 FragmentStatePagerAdapter 类供 Fragment 中的 ViewPager 使用。
RecyclerView加载Fragment这里涉及到细节非常的多，因为Fragment本身有生命周期，所以我们如何通过Adapter来有效维护Fragment的生命周期，这本身就是一种挑战。
2. ViewPager2的基本结构
ViewPager2的源码中我们知道，ViewPager2继承ViewGroup，其内部包含有一个RecyclerView控件，其他部分都是围绕着这个RecyclerView来实现的。总之，ViewPager2是以一个组合的方式来实现的。
这其中，ScrollEventAdapter的作用是将RecyclerView.OnScrollListener事件转变为ViewPager2.OnPageChangeCallback事件；FakeDrag的作用是用来实现模拟拖动的效果；PageTransformerAdapter的作用是将页面的滑动事件转变为比率变化，比如说，一个页面从左到右滑动，变化规则是从0~1，关于这个组件，我相信熟悉ViewPager2的同学都应该都知道。
最后就是最重要的东西--FragmentStateAdapter，这个Adapter在为了加载Fragment，花费了很多的功夫，为我们想要使用Adapter加载Fragment提供了非常权威的参考。
Android viewpage 设定上一页下一页按钮
接口回调回去当前viewpage 页码
package com.base.emergency_bureau.ui.module.question.fragment; /** * @ProjectName: emergency_bureau * @Package: com.base.emergency_bureau.ui.module.question.fragment * @ClassName: getCurrentPage * @Description: java类作用描述 * @Author: liys * @CreateDate: 2021/5/17 14:55 * @UpdateUser: 更新者 * @UpdateDate: 2021/5/17 14:55 * @UpdateRemark: 更新说明 * @Version: 1.0 */ public interface getCurrentPage { int getPage( int page); }
public class AnswerActivity extends FragmentActivity implements getCurrentPage {
@Override public int getPage(int getPage) { currentPage = getPage; switch (getPage) { case 1: tvSubmit.setVisibility(View.GONE); btNext.setVisibility(View.VISIBLE); llQuestionNextLast.setVisibility(View.VISIBLE); btLast.setVisibility(View.GONE); break; case 2: tvSubmit.setVisibility(View.GONE); btNext.setVisibility(View.VISIBLE); btLast.setVisibility(View.VISIBLE); llQuestionNextLast.setVisibility(View.VISIBLE); break; case 3: tvSubmit.setVisibility(View.GONE); btNext.setVisibility(View.VISIBLE); btLast.setVisibility(View.VISIBLE); llQuestionNextLast.setVisibility(View.VISIBLE); break; case 4: tvSubmit.setVisibility(View.GONE); btNext.setVisibility(View.VISIBLE); btLast.setVisibility(View.VISIBLE); llQuestionNextLast.setVisibility(View.VISIBLE); break; case 5: btNext.setVisibility(View.GONE); btLast.setVisibility(View.GONE); llQuestionNextLast.setVisibility(View.GONE); tvSubmit.setVisibility(View.VISIBLE); break; default: break; } return 0; }
在Fragment 中设定事件触发（重写方法：setUserVisibleHint 在当前页面可见情况下）
@Override public void setUserVisibleHint(boolean isVisibleToUser) { super.setUserVisibleHint(isVisibleToUser); if(isVisibleToUser){ getCurrentPage.getPage(5); } else { } }
android 简单实现 recycleview，adapter 展示item
Intent传递参数，需要进行本地的实例化；
public static class ListDTO implements Serializable {
adapter.setOnItemClickListener(new BaseQuickAdapter.OnItemClickListener() { @Override public void onItemClick(BaseQuickAdapter adapter, View view, int position) { Intent intent = new Intent(mcontext,DangerAcceptanceActivity.class); intent.putExtra("data",list.get(position)); startActivity(intent); } });
activity 展示list
package com.base.emergency_bureau.ui.module.hidden_trouble; import android.content.Intent; import android.view.LayoutInflater; import android.view.View; import android.widget.RelativeLayout; import androidx.annotation.NonNull; import androidx.recyclerview.widget.LinearLayoutManager; import androidx.recyclerview.widget.RecyclerView; import com.base.emergency_bureau.R; import com.base.emergency_bureau.base.BaseActivity; import com.base.emergency_bureau.base.BaseRequestCallBack; import com.base.emergency_bureau.base.BaseRequestParams; import com.base.emergency_bureau.base.Config; import com.base.emergency_bureau.base.UserInfoSP; import com.base.emergency_bureau.base.XHttpUtils; import com.base.emergency_bureau.ui.bean.DangerCountBean; import com.base.emergency_bureau.ui.bean.LurkingPerilCheckList; import com.base.emergency_bureau.ui.module.adpter.DangerAccountListAdapter; import com.blankj.utilcode.util.GsonUtils; import com.blankj.utilcode.util.ToastUtils; import com.chad.library.adapter.base.BaseQuickAdapter; import com.scwang.smartrefresh.layout.SmartRefreshLayout; import com.scwang.smartrefresh.layout.api.RefreshLayout; import com.scwang.smartrefresh.layout.listener.OnLoadMoreListener; import com.scwang.smartrefresh.layout.listener.OnRefreshListener; import org.json.JSONException; import org.json.JSONObject; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import java.util.Map; import butterknife.BindView; //隐患核实列表 public class DangeAccountListActivity extends BaseActivity { @BindView(R.id.back) RelativeLayout back; @BindView(R.id.list_item_recycler) RecyclerView list_item_recycler; @BindView(R.id.refreshLayout) SmartRefreshLayout mRefreshlayout; private int pageNum = 1,pageSize = 20; private List<DangerCountBean.DataDTO.ListDTO> list = new ArrayList<>(); private DangerAccountListAdapter adapter; private int status;//0 待核实列表 1 待整改列表 2 待验收列表 @Override protected void initWindow() { } @Override protected int getLayoutId() { return R.layout.activity_danger_account; } @Override protected void initView() { status = getIntent().getIntExtra("status",0); back.setOnClickListener(v -> finish()); mRefreshlayout.setOnRefreshListener(new OnRefreshListener() { @Override public void onRefresh(RefreshLayout refreshlayout) { pageNum = 1; getData(); } }); mRefreshlayout.setOnLoadMoreListener(new OnLoadMoreListener() { @Override public void onLoadMore(@NonNull RefreshLayout refreshLayout) { pageNum++; getDataRf(); } }); getData(); } private void getDataRf() { Map<String, Object> map = new HashMap<>(); map.put("pageNum", pageNum); map.put("pageSize", pageSize); map.put("userId", UserInfoSP.getId(mcontext)); map.put("status", status); BaseRequestParams requestParams = new BaseRequestParams(Config.LurkingPerilCheckList, map); XHttpUtils.getInstance().doHttpPost(requestParams, new BaseRequestCallBack() { @Override public void successEnd(String result) { mRefreshlayout.finishRefresh(); mRefreshlayout.finishLoadMore(); try { JSONObject jsonObject = new JSONObject(result); int status = jsonObject.getInt("status"); if (status == 0){ list.addAll(GsonUtils.fromJson(result, DangerCountBean.class).getData().getList()); adapter.notifyDataSetChanged(); }else { ToastUtils.showShort(jsonObject.getString("msg")); } } catch (JSONException e) { e.printStackTrace(); } } @Override public void onError(Throwable ex, boolean isOnCallback) { super.onError(ex, isOnCallback); mRefreshlayout.finishRefresh(); mRefreshlayout.finishLoadMore(); } }); } private void getData() { Map<String, Object> map = new HashMap<>(); map.put("pageNum", pageNum); map.put("pageSize", pageSize); map.put("userId", UserInfoSP.getId(mcontext)); map.put("status", status); BaseRequestParams requestParams = new BaseRequestParams(Config.LurkingPerilCheckList, map); XHttpUtils.getInstance().doHttpPost(requestParams, new BaseRequestCallBack() { @Override public void successEnd(String result) { mRefreshlayout.finishRefresh(); mRefreshlayout.finishLoadMore(); try { JSONObject jsonObject = new JSONObject(result); int status = jsonObject.getInt("status"); if (status == 0){ list = GsonUtils.fromJson(result, DangerCountBean.class).getData().getList(); bindData(); }else { ToastUtils.showShort(jsonObject.getString("msg")); } } catch (JSONException e) { e.printStackTrace(); } } @Override public void onError(Throwable ex, boolean isOnCallback) { super.onError(ex, isOnCallback); mRefreshlayout.finishRefresh(); mRefreshlayout.finishLoadMore(); } }); } private void bindData(){ LinearLayoutManager gridLayoutManager = new LinearLayoutManager(mcontext); list_item_recycler.setLayoutManager(gridLayoutManager); adapter = new DangerAccountListAdapter(R.layout.item_danger_verification,list); list_item_recycler.setAdapter(adapter); View emptyView = LayoutInflater.from(mcontext).inflate(R.layout.common_nodata_layout, null); adapter.setEmptyView(emptyView); adapter.setOnItemClickListener(new BaseQuickAdapter.OnItemClickListener() { @Override public void onItemClick(BaseQuickAdapter adapter, View view, int position) { Intent intent = new Intent(mcontext,DangerAcceptanceActivity.class); intent.putExtra("data",list.get(position)); startActivity(intent); } }); } @Override protected void onResumeAction() { pageNum=1; getData(); } }
Bean 类不写了，太大
layout
```xml <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" tools:context=".ui.module.hidden_trouble.DangerVerificationListActivity"> <FrameLayout android:id="@+id/f_title" android:background="@color/white" android:layout_width="match_parent" android:layout_height="@dimen/size_big_40"> <TextView android:id="@+id/tv_title" android:layout_width="match_parent" android:layout_height="match_parent" android:gravity="center" android:text="隐患列表" android:textColor="@color/black" android:textSize="18sp" /> <RelativeLayout android:id="@+id/back" android:layout_width="@dimen/size_big_40" android:layout_height="@dimen/size_big_40" > <ImageView android:layout_width="@dimen/size_big" android:layout_height="@dimen/size_big" android:layout_centerInParent="true" android:src="@mipmap/back_lift" /> </RelativeLayout> </FrameLayout> <com.scwang.smartrefresh.layout.SmartRefreshLayout android:id="@+id/refreshLayout" android:layout_width="match_parent" android:layout_height="match_parent"> <com.scwang.smartrefresh.layout.header.ClassicsHeader android:layout_width="match_parent" android:layout_height="wrap_content"> </com.scwang.smartrefresh.layout.header.ClassicsHeader> <androidx.recyclerview.widget.RecyclerView android:padding="@dimen/dp_10" android:id="@+id/list_item_recycler" android:layout_width="match_parent" android:layout_height="wrap_content" android:overScrollMode="never" /> <com.scwang.smartrefresh.layout.footer.ClassicsFooter android:layout_width="match_parent" android:layout_height="wrap_content"> </com.scwang.smartrefresh.layout.footer.ClassicsFooter> </com.scwang.smartrefresh.layout.SmartRefreshLayout> </LinearLayout>
item layout  ```xml <?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="wrap_content" android:layout_marginBottom="10dp" android:background="@drawable/white_roundrect_10dp_shape" android:orientation="vertical" android:padding="15dp"> <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content"> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="隐患描述：" android:textColor="@color/tc_gray_999" /> <TextView android:id="@+id/tv_des" android:layout_width="0dp" android:layout_height="wrap_content" android:layout_weight="1" android:text="" android:textColor="@color/text_balck" /> </LinearLayout> <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_marginTop="8dp"> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="隐患状态：" android:textColor="@color/tc_gray_999" /> <TextView android:id="@+id/tv_status" android:layout_width="0dp" android:layout_height="wrap_content" android:layout_weight="1" android:text="" android:textColor="@color/text_balck" /> </LinearLayout> <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_marginTop="8dp"> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="级别：" android:textColor="@color/tc_gray_999" /> <TextView android:id="@+id/tv_level" android:layout_width="0dp" android:layout_height="wrap_content" android:layout_weight="1" android:text="" android:textColor="@color/text_balck" /> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="类别：" android:textColor="@color/tc_gray_999" /> <TextView android:id="@+id/tv_type" android:layout_width="0dp" android:layout_height="wrap_content" android:layout_weight="1" android:text="" android:textColor="@color/text_balck" /> </LinearLayout> <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_marginTop="10dp"> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="登记时间：" android:textColor="@color/tc_gray_999" /> <TextView android:id="@+id/tv_time" android:layout_width="0dp" android:layout_height="wrap_content" android:layout_weight="1" android:text="" android:textColor="@color/text_balck" /> </LinearLayout> </LinearLayout>
adapter
package com.base.emergency_bureau.ui.module.adpter; import androidx.annotation.Nullable; import com.base.emergency_bureau.R; import com.base.emergency_bureau.ui.bean.DangerCountBean; import com.base.emergency_bureau.ui.bean.LurkingPerilCheckList; import com.base.emergency_bureau.utils.Utils; import com.chad.library.adapter.base.BaseQuickAdapter; import com.chad.library.adapter.base.BaseViewHolder; import java.util.List; public class DangerAccountListAdapter extends BaseQuickAdapter<DangerCountBean.DataDTO.ListDTO, BaseViewHolder> { public DangerAccountListAdapter(int layoutResId, @Nullable List<DangerCountBean.DataDTO.ListDTO> data) { super(layoutResId, data); } @Override protected void convert(BaseViewHolder helper, DangerCountBean.DataDTO.ListDTO item) { helper.setText(R.id.tv_des,item.getDescription()) .setText(R.id.tv_type,item.getTypeName()) .setText(R.id.tv_time,item.getCheckDate()) .setText(R.id.tv_status, Utils.rtStatusSt(item.getStatus())); } }
item activity
```java package com.base.emergency_bureau.ui.module.hidden_trouble; import android.content.Intent; import android.os.Bundle; import android.view.View; import android.widget.Button; import android.widget.EditText; import android.widget.ImageView; import android.widget.TextView; import com.base.emergency_bureau.R; import com.base.emergency_bureau.base.BaseActivity; import com.base.emergency_bureau.base.BaseRequestCallBack; import com.base.emergency_bureau.base.BaseRequestParams; import com.base.emergency_bureau.base.Config; import com.base.emergency_bureau.base.UserInfoSP; import com.base.emergency_bureau.base.XHttpUtils; import com.base.emergency_bureau.ui.bean.DangerCountBean; import com.base.emergency_bureau.ui.bean.LurkingPerilCheckList; import com.base.emergency_bureau.ui.module.web.PdfActivity; import com.base.emergency_bureau.utils.Utils; import com.bigkoo.pickerview.builder.TimePickerBuilder; import com.bigkoo.pickerview.listener.OnTimeSelectListener; import com.bigkoo.pickerview.view.TimePickerView; import com.blankj.utilcode.util.ClickUtils; import com.blankj.utilcode.util.StringUtils; import com.blankj.utilcode.util.ToastUtils; import com.bumptech.glide.Glide; import org.angmarch.views.NiceSpinner; import org.angmarch.views.OnSpinnerItemSelectedListener; import org.json.JSONException; import org.json.JSONObject; import java.text.SimpleDateFormat; import java.util.Arrays; import java.util.Date; import java.util.HashMap; import java.util.LinkedList; import java.util.List; import java.util.Map; import butterknife.BindView; import butterknife.ButterKnife; import butterknife.OnClick; //隐患验收 public class DangerAcceptanceActivity extends BaseActivity { @BindView(R.id.tv_des) TextView tv_des; @BindView(R.id.iv_pic) ImageView iv_pic; @BindView(R.id.iv_pic_change) ImageView iv_pic_change; @BindView(R.id.sp_is_pass) NiceSpinner sp_is_pass; @BindView(R.id.ed_result) EditText ed_result; @BindView(R.id.tv_time_yanshou) TextView tv_time_yanshou; @BindView(R.id.tv_submit) Button tv_submit; @BindView(R.id.tv_zhenggai) TextView tv_zhenggai; @BindView(R.id.ed_standard) EditText ed_standard; @BindView(R.id.tv_organization) TextView tv_organization; @BindView(R.id.iv_pic_1) ImageView ivPic1; @BindView(R.id.iv_pic_2) ImageView ivPic2; @BindView(R.id.iv_pic_1_1) ImageView ivPic11; @BindView(R.id.iv_pic_2_2) ImageView ivPic22; @BindView(R.id.tv_standard) TextView tvStandard; @BindView(R.id.tv_name) TextView tvName; @BindView(R.id.tv_time) TextView tvTime; @BindView(R.id.tv_jibie) TextView tvJibie; @BindView(R.id.tv_leibie) TextView tvLeibie; @BindView(R.id.tv_paicha) TextView tvPaicha; @BindView(R.id.tv_change_type) TextView tvChangeType; @BindView(R.id.tv_time_limit) TextView tvTimeLimit; @BindView(R.id.tv_time_change) TextView tvTimeChange; private DangerCountBean.DataDTO.ListDTO data; private List<String> list2 = new LinkedList<>(Arrays.asList("通过", "不通过")); private int status = 3; @Override protected void initWindow() { } @Override protected int getLayoutId() { return R.layout.activity_danger_acceptance; } @Override protected void initView() { data = (DangerCountBean.DataDTO.ListDTO) getIntent().getSerializableExtra("data"); tvName.setText(data.getCheckUser()); tvTime.setText(data.getCheckDate()); if (data.getLurkingPerilLevel().equals("0")){ tvJibie.setText(R.string.Generate); }else { tvJibie.setText(R.string.significant); } tvLeibie.setText(data.getTypeName()); if (data.getSort().equals("0")){ tvPaicha.setText("自查自纠"); }else if(data.getSort().equals("1")){ tvPaicha.setText("政法下发隐患"); }else { tvPaicha.setText("政法三方机构下发隐患"); } if (data.getCorrectType().equals("0")){ tvChangeType.setText("立即整改"); }else { tvChangeType.setText("期限整改"); } tvTimeLimit.setText((String)data.getCorrectLimitDate()); tvTimeChange.setText((String)data.getCorrectDate()); if (data != null) { tv_des.setText(data.getDescription()); //以逗号分割，得出的数据存到 result 里面 String[] result = data.getLurkingPerilUrl().split(","); if (result.length == 1) { iv_pic.setVisibility(View.VISIBLE); ivPic1.setVisibility(View.GONE); ivPic2.setVisibility(View.GONE); Glide.with(mcontext).load(result[0]).override(240, 240).into(iv_pic); } else if (result.length == 2) { iv_pic.setVisibility(View.VISIBLE); ivPic1.setVisibility(View.VISIBLE); ivPic2.setVisibility(View.GONE); Glide.with(mcontext).load(result[0]).override(240, 240).into(iv_pic); Glide.with(mcontext).load(result[1]).override(240, 240).into(ivPic1); } else { iv_pic.setVisibility(View.VISIBLE); ivPic1.setVisibility(View.VISIBLE); ivPic2.setVisibility(View.VISIBLE); Glide.with(mcontext).load(result[0]).override(240, 240).into(iv_pic); Glide.with(mcontext).load(result[1]).override(240, 240).into(ivPic1); Glide.with(mcontext).load(result[2]).override(240, 240).into(ivPic2); } //以逗号分割，得出的数据存到 result 里面 String[] resultChange = data.getCorrectUrl().toString().split(","); if (resultChange.length == 1) { iv_pic_change.setVisibility(View.VISIBLE); ivPic11.setVisibility(View.GONE); ivPic22.setVisibility(View.GONE); Glide.with(mcontext).load(resultChange[0]).override(240, 240).into(iv_pic_change); } else if (resultChange.length == 2) { iv_pic_change.setVisibility(View.VISIBLE); ivPic11.setVisibility(View.VISIBLE); ivPic22.setVisibility(View.GONE); Glide.with(mcontext).load(resultChange[0]).override(240, 240).into(iv_pic_change); Glide.with(mcontext).load(resultChange[1]).override(240, 240).into(ivPic11); } else { iv_pic_change.setVisibility(View.VISIBLE); ivPic11.setVisibility(View.VISIBLE); ivPic22.setVisibility(View.VISIBLE); Glide.with(mcontext).load(resultChange[0]).override(240, 240).into(iv_pic_change); Glide.with(mcontext).load(resultChange[1]).override(240, 240).into(ivPic11); Glide.with(mcontext).load(resultChange[2]).override(240, 240).into(ivPic22); } tv_zhenggai.setText(data.getCorrectStep()+""); ed_standard.setText(data.getLurkingPerilStandard()); tv_organization.setText(Utils.rtOrganizationSt(data.getOrganizationType())); int type = getIntent().getIntExtra("type",-1); if (type == 1){ tv_submit.setVisibility(View.GONE); ed_result.setEnabled(false); ed_result.setText(data.getCorrectOpinion()+""); sp_is_pass.setEnabled(false); tv_time_yanshou.setEnabled(false); tv_time_yanshou.setText(data.getReceptionDate()+""); } } sp_is_pass.attachDataSource(list2); sp_is_pass.setOnSpinnerItemSelectedListener(new OnSpinnerItemSelectedListener() { @Override public void onItemSelected(NiceSpinner parent, View view, int position, long id) { if (position == 0) { status = 3; } else if (position == 1) { status = 4; } } }); ClickUtils.applySingleDebouncing(tv_submit, v -> { submit(); }); } @OnClick(R.id.tv_standard) public void intentStandardPdf() { Intent intent = new Intent(mcontext, PdfActivity.class); intent.putExtra("url", UserInfoSP.getSetListingStandardUrl(mcontext)); startActivity(intent); } @OnClick(R.id.back) public void onBack() { finish(); } @Override protected void onResumeAction() { } private void submit() { if (StringUtils.isEmpty(ed_result.getText().toString())) { ToastUtils.showShort("请上传验收结果"); return; } if ("选择时间".equals(tv_time_yanshou.getText().toString())) { ToastUtils.showShort("请选择验收时间"); return; } Map<String, Object> map = new HashMap<>(); map.put("id", data.getId()); map.put("correctOpinion", Utils.replaceBlank(ed_result.getText().toString().trim())); map.put("receptionDate", tv_time_yanshou.getText().toString()); map.put("status", status); BaseRequestParams requestParams = new BaseRequestParams(Config.UpdateReceptionLurkingPerilCheck, map); XHttpUtils.getInstance().doHttpPost(requestParams, new BaseRequestCallBack() { @Override public void successEnd(String result) { try { JSONObject jsonObject = new JSONObject(result); int status = jsonObject.getInt("status"); if (status == 0) { finish(); } ToastUtils.showShort(jsonObject.getString("msg")); } catch (JSONException e) { e.printStackTrace(); } } @Override public void onError(Throwable ex, boolean isOnCallback) { super.onError(ex, isOnCallback); } }); } @OnClick(R.id.tv_time_yanshou) public void showTimePick() { //时间选择器 TimePickerView pvTime = new TimePickerBuilder(this, new OnTimeSelectListener() { @Override public void onTimeSelect(Date date, View v) {//选中事件回调 SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd"); tv_time_yanshou.setText(simpleDateFormat.format(date)); data.setCorrectDate(simpleDateFormat.format(date)); } }).build(); // pvTime.setDate(Calendar.getInstance());//注：根据需求来决定是否使用该方法（一般是精确到秒的情况），此项可以在弹出选择器的时候重新设置当前时间，避免在初始化之后由于时间已经设定，导致选中时间与当前时间不匹配的问题。 pvTime.show(); } @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); // TODO: add setContentView(...) invocation ButterKnife.bind(this); } }
