首先,新年的一年里祝大家,心想事成,雞年大吉。去年的時(shí)候,我們做時(shí)間控件的時(shí)候一直遺留一個(gè)問題那就是正計(jì)時(shí)控件一直沒有好的解決方案,我們很想把CountDownView既支持正計(jì)時(shí)又能支持倒計(jì)時(shí)。基于這個(gè)想法,便有了今天這篇文章,原理不在介紹,其實(shí)很簡(jiǎn)單,主要是我們知道怎么用,此控件的優(yōu)點(diǎn)有:
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* 實(shí)現(xiàn)了正計(jì)時(shí)倒計(jì)時(shí)的統(tǒng)一
* 優(yōu)化了Adapter,不再綁定控件Id
* 一個(gè)屬性實(shí)現(xiàn)正倒計(jì)時(shí)
* 不在為具體的時(shí)間屬性設(shè)置別名
具體用法
1、xml文件
屬性 app:isCountUp=”false”代表倒計(jì)時(shí) true為正計(jì)時(shí)
<com.delta.library.CountTimeView android:id="@+id/cv_countView" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentRight="true" android:layout_gravity="center_horizontal" android:layout_marginTop="20dp" app:isCountUp="false" app:isShowDay="true" app:isShowHour="true" app:isShowMillisecond="false" app:isShowMinute="true" app:isShowSecond="true" app:suffixDay="天" app:suffixDayRightMargin="10dp" app:suffixGravity="center" app:suffixHour=":" app:suffixMinute=":" app:suffixTextColor="#e61010" app:suffixTextSize="17sp" app:timeTextColor="#e60b0b" app:timeTextSize="20sp" />
2、實(shí)體類
要繼承TimeEntity
eg:
package com.delta.counttimeview; /** * @description :正計(jì)時(shí)的 * @autHor : V.Wenju.Tian * @date : 2017/2/6 15:31 */ public class ItemEntity extends TimeEntity { private String title; private Long time; public ItemEntity() { } public ItemEntity(int id, long endTime, long createTime, String title, Long upTime) { super(id, endTime, createTime); this.title = title; this.time = upTime; } public Long getTime() { return time; } public void setTime(Long time) { this.time = time; } public void setTitle(String title) { this.title = title; } public String getTitle() { return title; } }
3、Adapter如下
倒計(jì)時(shí)主要是==要注意在數(shù)據(jù)源的時(shí)候初始化endTime屬性,也就是截止時(shí)間還有相應(yīng)的EntityId==
public class CountDownActivity extends AppCompatActivity { private RecyclerView rv; private List<ItemEntity> datas = new ArrayList<>(); private ItemCountViewAdapter<ItemEntity> mMyAdapter; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_count_down); rv = ((RecyclerView) findViewById(R.id.rv)); long time =System.currentTimeMillis(); for (int i = 0; i < 100; i++) { ItemEntity entity = new ItemEntity(); entity.setEntityId(i); entity.setTitle("第" + i); entity.setTime(i *60 *1000l); entity.setEndTime(time + entity.getTime()); datas.add(entity); } mMyAdapter = new ItemCountViewAdapter<ItemEntity>(this, datas) { @Override protected int getCountViewId() { return R.id.cv_countView; } @Override protected int getLayoutId() { return R.layout.item_count_down; } @Override protected void convert(ItemTimeViewHolder holder, ItemEntity itemEntity, int position) { holder.setText(R.id.tv_title, itemEntity.getTitle()); } }; rv.setLayoutManager(new LinearLayoutManager(this)); rv.setAdapter(mMyAdapter); } @Override protected void onResume() { super.onResume(); if (null != mMyAdapter) { mMyAdapter.startRefreshTime(); } } @Override protected void onPause() { super.onPause(); if (null != mMyAdapter) { mMyAdapter.cancelRefreshTime(); } } @Override public void onDestroy() { super.onDestroy(); if (null != mMyAdapter) { mMyAdapter.cancelRefreshTime(); } } }
正計(jì)時(shí)==主要是在獲得數(shù)據(jù)源的時(shí)候初始化createTime,也就是起始時(shí)間和EntityId==
public class CountUpActivity extends AppCompatActivity { private RecyclerView rv; private List<ItemEntity> datas = new ArrayList<>(); private ItemCountViewAdapter<ItemEntity> mMyAdapter; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_count_up); rv = ((RecyclerView) findViewById(R.id.rv)); for (int i = 0; i < 100; i++) { ItemEntity entity = new ItemEntity(); entity.setEntityId(i); entity.setTitle("第" + i); entity.setTime(i * 60 * 60 * 1000l); entity.setCreateTime(System.currentTimeMillis() - entity.getTime()); datas.add(entity); } mMyAdapter = new ItemCountViewAdapter<ItemEntity>(this, datas) { @Override protected int getCountViewId() { return R.id.cv_countView; } @Override protected int getLayoutId() { return R.layout.list_item; } @Override protected void convert(ItemTimeViewHolder holder, ItemEntity itemEntity, int position) { holder.setText(R.id.tv_title, itemEntity.getTitle()); } }; rv.setLayoutManager(new LinearLayoutManager(this)); rv.setAdapter(mMyAdapter); } @Override protected void onResume() { super.onResume(); if (null != mMyAdapter) { mMyAdapter.startRefreshTime(); } } @Override protected void onPause() { super.onPause(); if (null != mMyAdapter) { mMyAdapter.cancelRefreshTime(); } } @Override public void onDestroy() { super.onDestroy(); if (null != mMyAdapter) { mMyAdapter.cancelRefreshTime(); } } }
下載源碼
以上就是本文的全部?jī)?nèi)容,希望對(duì)大家的學(xué)習(xí)有所幫助,也希望大家多多支持創(chuàng)新互聯(lián)。
文章名稱:Android基于CountDownView的時(shí)間控件擴(kuò)展
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