如何在Android应用中实现一个动态界面分享功能？很多新手对此不是很清楚，为了帮助大家解决这个难题，下面小编将为大家详细讲解，有这方面需求的人可以来学习下，希望你能有所收获。
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动态列表界面MomentListFragment支持 下拉刷新与上拉加载 和 模糊搜索，反复快速滑动仍然非常流畅。
缓存机制使得数据可在启动界面后瞬间加载完成。
动态详情界面MomentActivity支持 (取消)点赞、(删除)评论、点击姓名跳到个人详情 等。
只有1张图片时图片放大显示，超过1张则按九宫格显示。
用到的CommentContainerView和MomentView都是独立的组件，既可单独使用，也可用于ListView或添加至其它ViewGroup等。
CommentContainerView复用
CommentContainerView.java
setOnCommentClickListener : 设置点击评论监听
createView : 创建View
bindView : 绑定数据并显示View
setMaxShowCount : 设置最多显示数量，超过则折叠
setComment : 设置评论
addCommentView : 添加评论View
package apijson.demo.client.view;
import android.annotation.SuppressLint;
import android.app.Activity;
import android.content.res.Resources;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.View.OnLongClickListener;
import android.view.ViewGroup;
import java.util.ArrayList;
import java.util.List;
import apijson.demo.client.R;
import apijson.demo.client.model.CommentItem;
import apijson.demo.client.view.CommentView.OnCommentClickListener;
import zuo.biao.library.base.BaseView;
import zuo.biao.library.util.Log;
import zuo.biao.library.util.StringUtil;
/**评论容器
* @author Lemon
* @use
CommentContainerView commentContainerView = new CommentContainerView(context, inflater);
adapter中使用convertView = commentContainerView.getView();//[具体见.DemoAdapter] 或 其它类中使用
containerView.addView(commentContainerView.getConvertView());
commentContainerView.bindView(data);
commentContainerView.setOnClickPictureListener(onClickPictureListener);//非必需
commentContainerView.setOnDataChangedListener(onDataChangedListener);data = commentContainerView.getData();//非必需
commentContainerView.setOnClickListener(onClickListener);//非必需
...
*/
public class CommentContainerView extends BaseView> {
private static final String TAG = "CommentContainerView";
private OnCommentClickListener onCommentClickListener;
/**设置点击评论监听
* @param onCommentClickListener
*/
public void setOnCommentClickListener(OnCommentClickListener onCommentClickListener) {
this.onCommentClickListener = onCommentClickListener;
}
public CommentContainerView(Activity context, Resources resources) {
super(context, resources);
}
private LayoutInflater inflater;
public ViewGroup llCommentContainerViewContainer;
public View tvCommentContainerViewMore;
@SuppressLint("InflateParams")
@Override
public View createView(LayoutInflater inflater) {
this.inflater = inflater;
convertView = inflater.inflate(R.layout.comment_container_view, null);
llCommentContainerViewContainer = findViewById(R.id.llCommentContainerViewContainer);
tvCommentContainerViewMore = findViewById(R.id.tvCommentContainerViewMore);
return convertView;
}
@Override
public void bindView(List list){
llCommentContainerViewContainer.setVisibility(list == null || list.isEmpty() ? View.GONE : View.VISIBLE);
if (list == null) {
Log.w(TAG, "bindView data_ == null >> data_ = new List();");
list = new ArrayList();
}
this.data = list;
// 评论
setComment(list);
}
private int maxShowCount = 3;
/**设置最多显示数量，超过则折叠
* @param maxShowCount <= 0 ? 显示全部 : 超过则折叠
*/
public void setMaxShowCount(int maxShowCount) {
this.maxShowCount = maxShowCount;
}
/**设置评论
* @param list
*/
public void setComment(List list) {
int count = list == null ? 0 : list.size();
boolean showMore = maxShowCount > 0 && count > maxShowCount;
tvCommentContainerViewMore.setVisibility(showMore ? View.VISIBLE : View.GONE);
llCommentContainerViewContainer.removeAllViews();
llCommentContainerViewContainer.setVisibility(count <= 0 ? View.GONE : View.VISIBLE);
if (count > 0) {
if (showMore) {
list = list.subList(0, maxShowCount);
}
for (int i = 0; i < list.size(); i++) {
addCommentView(i, list.get(i));
}
}
}
/**添加评论
* @param index
* @param comment
*/
@SuppressLint("InflateParams")
private void addCommentView(final int index, final CommentItem comment) {
if (comment == null) {
Log.e(TAG, "addCommentView comment == null >> return; ");
return;
}
String content = StringUtil.getTrimedString(comment.getComment().getContent());
if (StringUtil.isNotEmpty(content, true) == false) {
Log.e(TAG, "addCommentView StringUtil.isNotEmpty(content, true) == false >> return; ");
return;
}
CommentTextView commentView = (CommentTextView) inflater.inflate(R.layout.comment_item, null);
commentView.setView(comment);
if (onCommentClickListener != null) {
commentView.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
onCommentClickListener.onCommentClick(comment, position, index, false);
}
});
commentView.setOnLongClickListener(new OnLongClickListener() {
@Override
public boolean onLongClick(View v) {
onCommentClickListener.onCommentClick(comment, position, index, true);
return true;
}
});
}
llCommentContainerViewContainer.addView(commentView);
}
}
comment_container_view.xml
<?xml version="1.0" encoding="utf-8"?>
MomentView复用
MomentView.java
setOnPictureClickListener : 设置点击图片监听
createView : 创建View
bindView : 绑定数据并显示View
setPraise : 设置点赞
setShowComment : 设置是否显示评论
getShowComment : 获取是否显示评论的设置
setComment : 设置评论
setPicture : 设置九宫格图片
toComment : 跳转到所有评论界面
getData : 获取动态绑定的数据
isLoggedIn : 判断是否已登录，未登录则跳到登录界面
praise : (取消)点赞
onDialogButtonClick : 处理对话框返回结果，比如删除动态
onHttpResponse : 处理Http请求的返回结果，比如点赞
onClick : 处理点击事件，比如点击内容跳到动态详情界面
onItemClick : 处理点击图片的事件，默认是查看大图，可setOnPictureClickListener接管处理
package apijson.demo.client.view;
import android.annotation.SuppressLint;
import android.app.Activity;
import android.content.res.Resources;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.GridView;
import android.widget.ImageView;
import android.widget.LinearLayout.LayoutParams;
import android.widget.TextView;
import java.util.ArrayList;
import java.util.List;
import apijson.demo.client.R;
import apijson.demo.client.activity_fragment.LoginActivity;
import apijson.demo.client.activity_fragment.MomentActivity;
import apijson.demo.client.activity_fragment.UserActivity;
import apijson.demo.client.activity_fragment.UserListActivity;
import apijson.demo.client.application.APIJSONApplication;
import apijson.demo.client.model.CommentItem;
import apijson.demo.client.model.Moment;
import apijson.demo.client.model.MomentItem;
import apijson.demo.client.model.User;
import apijson.demo.client.util.HttpRequest;
import apijson.demo.client.view.CommentView.OnCommentClickListener;
import zuo.biao.apijson.JSONResponse;
import zuo.biao.library.base.BaseView;
import zuo.biao.library.manager.CacheManager;
import zuo.biao.library.manager.HttpManager.OnHttpResponseListener;
import zuo.biao.library.model.Entry;
import zuo.biao.library.ui.AlertDialog;
import zuo.biao.library.ui.AlertDialog.OnDialogButtonClickListener;
import zuo.biao.library.ui.GridAdapter;
import zuo.biao.library.ui.WebViewActivity;
import zuo.biao.library.util.ImageLoaderUtil;
import zuo.biao.library.util.Log;
import zuo.biao.library.util.ScreenUtil;
import zuo.biao.library.util.StringUtil;
import zuo.biao.library.util.TimeUtil;
/**动态
* @author Lemon
* @use
MomentView momentView = new MomentView(context, inflater);
adapter中使用convertView = momentView.getView();//[具体见.DemoAdapter] 或 其它类中使用
containerView.addView(momentView.getConvertView());
momentView.bindView(data);
momentView.setOnPictureClickListener(onPictureClickListener);//非必需
momentView.setOnDataChangedListener(onDataChangedListener);data = momentView.getData();//非必需
momentView.setOnClickListener(onClickListener);//非必需
...
*/
public class MomentView extends BaseView implements OnClickListener
, OnHttpResponseListener, OnDialogButtonClickListener, OnItemClickListener {
private static final String TAG = "MomentView";
public interface OnPictureClickListener {
void onClickPicture(int momentPosition, MomentView momentView, int pictureIndex);
}
private OnPictureClickListener onPictureClickListener;
/**设置点击图片监听
* @param onPictureClickListener
*/
public void setOnPictureClickListener(OnPictureClickListener onPictureClickListener) {
this.onPictureClickListener = onPictureClickListener;
}
public MomentView(Activity context, Resources resources) {
super(context, resources);
}
//UI显示区(操作UI，但不存在数据获取或处理代码，也不存在事件监听代码)<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
private LayoutInflater inflater;
public View llMomentViewContainer;
public ImageView ivMomentViewHead;
public TextView tvMomentViewName;
public TextView tvMomentViewStatus;
public TextView tvMomentViewContent;
public GridView gvMomentView;
public TextView tvMomentViewDate;
public ImageView ivMomentViewPraise;
public ImageView ivMomentViewComment;
public ViewGroup llMomentViewPraise;
public PraiseTextView tvMomentViewPraise;
public View vMomentViewDivider;
public ViewGroup llMomentViewCommentContainer;
@SuppressLint("InflateParams")
@Override
public View createView(LayoutInflater inflater) {
this.inflater = inflater;
convertView = inflater.inflate(R.layout.moment_view, null);
llMomentViewContainer = findViewById(R.id.llMomentViewContainer);
ivMomentViewHead = findViewById(R.id.ivMomentViewHead, this);
tvMomentViewName = findViewById(R.id.tvMomentViewName, this);
tvMomentViewStatus = findViewById(R.id.tvMomentViewStatus, this);
tvMomentViewContent = findViewById(R.id.tvMomentViewContent, this);
gvMomentView = findViewById(R.id.gvMomentView);
tvMomentViewDate = findViewById(R.id.tvMomentViewDate);
ivMomentViewPraise = findViewById(R.id.ivMomentViewPraise, this);
ivMomentViewComment = findViewById(R.id.ivMomentViewComment, this);
llMomentViewPraise = findViewById(R.id.llMomentViewPraise, this);
tvMomentViewPraise = findViewById(R.id.tvMomentViewPraise, this);
vMomentViewDivider = findViewById(R.id.vMomentViewDivider);
llMomentViewCommentContainer = findViewById(R.id.llMomentViewCommentContainer);
return convertView;
}
private User user;
private Moment moment;
private long momentId;
private long userId;
private boolean isCurrentUser;
private int status;
public int getStatus() {
return status;
}
@Override
public void bindView(MomentItem data_){
this.data = data_;
llMomentViewContainer.setVisibility(data == null ? View.GONE : View.VISIBLE);
if (data == null) {
Log.w(TAG, "bindView data == null >> return;");
return;
}
this.user = data.getUser();
this.moment = data.getMoment();
this.momentId = moment.getId();
this.userId = moment.getUserId();
this.isCurrentUser = APIJSONApplication.getInstance().isCurrentUser(moment.getUserId());
this.status = data.getMyStatus();
ImageLoaderUtil.loadImage(ivMomentViewHead, user.getHead());
tvMomentViewName.setText(StringUtil.getTrimedString(user.getName()));
tvMomentViewStatus.setText(StringUtil.getTrimedString(data.getStatusString()));
tvMomentViewStatus.setVisibility(isCurrentUser ? View.VISIBLE : View.GONE);
tvMomentViewContent.setVisibility(StringUtil.isNotEmpty(moment.getContent(), true) ? View.VISIBLE : View.GONE);
tvMomentViewContent.setText(StringUtil.getTrimedString(moment.getContent()));
tvMomentViewDate.setText(TimeUtil.getSmartDate(moment.getDate()));
// 图片
setPicture(moment.getPictureList());
// 点赞
setPraise(data.getIsPraised(), data.getUserList());
// 评论
setComment(data.getCommentItemList());
vMomentViewDivider.setVisibility(llMomentViewPraise.getVisibility() == View.VISIBLE
&& llMomentViewCommentContainer.getVisibility() == View.VISIBLE ? View.VISIBLE : View.GONE);
}
/**设置点赞
* @param joined
* @param list
*/
private void setPraise(boolean joined, List list) {
ivMomentViewPraise.setImageResource(joined ? R.drawable.praised : R.drawable.praise);
llMomentViewPraise.setVisibility(list == null || list.isEmpty() ? View.GONE : View.VISIBLE);
if (llMomentViewPraise.getVisibility() == View.VISIBLE) {
tvMomentViewPraise.setView(list);
}
}
private boolean showComment = true;
public void setShowComment(boolean showComment) {
this.showComment = showComment;
}
public boolean getShowComment() {
return showComment;
}
public CommentContainerView commentContainerView;
/**设置评论
* @param list
*/
public void setComment(List list) {
llMomentViewCommentContainer.setVisibility(showComment == false || list == null || list.isEmpty()
? View.GONE : View.VISIBLE);
if (llMomentViewCommentContainer.getVisibility() != View.VISIBLE) {
Log.i(TAG, "setComment llMomentViewCommentContainer.getVisibility() != View.VISIBLE >> return;");
return;
}
if (commentContainerView == null) {
commentContainerView = new CommentContainerView(context, resources);
llMomentViewCommentContainer.removeAllViews();
llMomentViewCommentContainer.addView(commentContainerView.createView(inflater));
commentContainerView.setOnCommentClickListener(new OnCommentClickListener() {
@Override
public void onCommentClick(CommentItem item, int position, int index, boolean isLong) {
toComment(item, true);
}
});
commentContainerView.tvCommentContainerViewMore.setOnClickListener(this);
commentContainerView.setMaxShowCount(5);
}
commentContainerView.bindView(list);
}
private GridAdapter adapter;
/**设置图片
* @param pictureList
*/
private void setPicture(List pictureList) {
List> keyValueList = new ArrayList>();
if (pictureList != null) {
for (String picture : pictureList) {
keyValueList.add(new Entry(picture, null));
}
}
int pictureNum = keyValueList.size();
gvMomentView.setVisibility(pictureNum <= 0 ? View.GONE : View.VISIBLE);
if (pictureNum <= 0) {
Log.i(TAG, "setList pictureNum <= 0 >> lvModel.setAdapter(null); return;");
adapter = null;
gvMomentView.setAdapter(null);
return;
}
gvMomentView.setNumColumns(pictureNum <= 1 ? 1 : 3);
if (adapter == null) {
adapter = new GridAdapter(context).setHasName(false);
gvMomentView.setAdapter(adapter);
}
adapter.refresh(keyValueList);
gvMomentView.setOnItemClickListener(this);
final int gridViewHeight = (int) (ScreenUtil.getScreenSize(context)[0]
- convertView.getPaddingLeft() - convertView.getPaddingRight()
- getDimension(R.dimen.moment_view_head_width));
try {
if (pictureNum >= 7) {
gvMomentView.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT, gridViewHeight));
} else if (pictureNum >= 4) {
gvMomentView.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT, (gridViewHeight*2)/3));
} else if (pictureNum >= 2) {
gvMomentView.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT, gridViewHeight / 3));
} else {
gvMomentView.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT));
}
} catch (Exception e) {
Log.e(TAG, " setPictureGrid try int gridViewHeight;...>> catch" + e.getMessage());
}
}
/**跳转到所有评论界面
* @param isToComment
*/
private void toComment(boolean isToComment) {
toComment(null, isToComment);
}
/**跳转到所有评论界面
* @param commentItem
* @param isToComment comment有效时为true
*/
private void toComment(CommentItem commentItem, boolean isToComment) {
if (commentItem == null) {
commentItem = new CommentItem();
}
toActivity(MomentActivity.createIntent(context, momentId, isToComment
, commentItem.getId(), commentItem.getUser().getId(), commentItem.getUser().getName()));
}
//UI显示区(操作UI，但不存在数据获取或处理代码，也不存在事件监听代码)>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
//Data数据区(存在数据获取或处理代码，但不存在事件监听代码)<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
@Override
public MomentItem getData() {//bindView(null)不会使data == null
return llMomentViewContainer.getVisibility() == View.VISIBLE ? data : null;
}
/**判断是否已登录，如果未登录则弹出登录界面
* @return
*/
private boolean isLoggedIn() {
boolean isLoggedIn = APIJSONApplication.getInstance().isLoggedIn();
if (isLoggedIn == false) {
context.startActivity(LoginActivity.createIntent(context));
context.overridePendingTransition(R.anim.bottom_push_in, R.anim.hold);
}
return isLoggedIn;
}
/**点赞
* @param toPraise
*/
public void praise(boolean toPraise) {
if (data == null || toPraise == data.getIsPraised()) {
Log.e(TAG, "praiseWork toPraise == moment.getIsPraise() >> return;");
return;
}
// setPraise(toPraise, data.getPraiseCount() + (toPraise ? 1 : -1));
HttpRequest.praiseMoment(momentId, toPraise, toPraise ? HTTP_PRAISE : HTTP_CANCEL_PRAISE, this);
}
//Data数据区(存在数据获取或处理代码，但不存在事件监听代码)>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> //Event事件监听区(只要存在事件监听代码就是)<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
@Override
public void onDialogButtonClick(int requestCode, boolean isPositive) {
if (isPositive && data != null) {
data.setMyStatus(MomentItem.STATUS_DELETING);
bindView(data);
HttpRequest.deleteMoment(moment.getId(), HTTP_DELETE, this);
}
}
public static final int HTTP_PRAISE = 1;
public static final int HTTP_CANCEL_PRAISE = 2;
public static final int HTTP_DELETE = 3;
@Override
public void onHttpResponse(int requestCode, String result, Exception e) {
if (data == null) {
Log.e(TAG, "onHttpResponse data == null >> return;");
return;
}
JSONResponse response = new JSONResponse(result);
JSONResponse response2 = response.getJSONResponse(Moment.class.getSimpleName());
boolean isSucceed = JSONResponse.isSucceed(response2);
switch (requestCode) {
case HTTP_PRAISE:
case HTTP_CANCEL_PRAISE:
if (isSucceed) {
data.setIsPraised(requestCode == HTTP_PRAISE);
bindView(data);
} else {
showShortToast((requestCode == HTTP_PRAISE ? "点赞" : "取消点赞") + "失败，请检查网络后重试");
}
break;
case HTTP_DELETE:
showShortToast(isSucceed ? R.string.delete_succeed : R.string.delete_failed);
//只对adapter.getCount()有影响。目前是隐藏的，不需要通知，也不需要刷新adapter，用户手动刷新后自然就更新了。
if (isSucceed) {
bindView(null);
status = MomentItem.STATUS_DELETED;
if (onDataChangedListener != null) {
onDataChangedListener.onDataChanged();
}
CacheManager.getInstance().remove(MomentItem.class, "" + momentId);
} else {
data.setMyStatus(MomentItem.STATUS_NORMAL);
bindView(data);
}
break;
}
}
@Override
public void onClick(View v) {
if (data == null) {
return;
}
if (status == MomentItem.STATUS_PUBLISHING) {
showShortToast(R.string.publishing);
return;
}
switch (v.getId()) {
case R.id.ivMomentViewHead:
case R.id.tvMomentViewName:
toActivity(UserActivity.createIntent(context, userId));
break;
case R.id.tvMomentViewStatus:
if (status == MomentItem.STATUS_NORMAL) {
new AlertDialog(context, "", "删除动态", true, 0, this).show();
}
break;
case R.id.tvMomentViewContent:
case R.id.tvCommentContainerViewMore:
toComment(false);
break;
case R.id.tvMomentViewPraise:
case R.id.llMomentViewPraise:
toActivity(UserListActivity.createIntent(context, data.getPraiseUserIdList())
.putExtra(UserListActivity.INTENT_TITLE, "点赞的人"));
break;
default:
if (isLoggedIn() == false) {
return;
}
switch (v.getId()) {
case R.id.ivMomentViewPraise:
praise(! data.getIsPraised());
break;
case R.id.ivMomentViewComment:
toComment(true);
break;
default:
break;
}
break;
}
}
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
if (status == MomentItem.STATUS_PUBLISHING) {
showShortToast(R.string.publishing);
return;
}
if (onPictureClickListener != null) {
onPictureClickListener.onClickPicture(this.position, this, position);
} else {
toActivity(WebViewActivity.createIntent(context, null
, adapter == null ? null : adapter.getItem(position).getKey()));
}
}
//Event事件监听区(只要存在事件监听代码就是)>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
}moment_view.xml
<?xml version="1.0" encoding="utf-8"?>
由于这个项目使用了ZBLibrary快速开发框架，所以实现仿QQ空间和微信朋友圈的这种复杂界面只用了极少的代码，并且高解耦、高复用、高灵活。
服务端是用APIJSON(Server)工程快速搭建的，客户端App和服务端通过APIJSON-JSON传输结构协议通信，非常方便灵活，省去了大量的接口和文档！
今年RxJava特别火，在北京市场几乎是必备技能，所以我还把这个项目做了个RxJava版本，欢迎交流和指教。
实现UI的Java类:
MomentListFragment 395行 动态列表的获取和显示
MomentActivity 616行 动态和评论列表的获取、显示和交互(评论和删除评论等)
MomentAdapter 67行 动态列表的显示
CommentAdapter 82行 评论列表的显示
MomentView 495行 动态的显示和交互(各种跳转、点赞、删除等)
EmptyEventGridView 56行 动态里图片的显示和交互(触摸空白处传递触摸事件到内层View)
PraiseTextView 129行 动态里点赞用户的显示和交互(点击姓名跳到个人详情，点击整体跳到点赞的用户列表界面)
CommentView 153行 一级评论(头像、姓名、内容)的显示和交互(回复、删除等)，添加二级评论列表
CommentContainerView 172行 二级评论列表的显示和交互(查看全部等)
CommentTextView 122行 二级评论(姓名、内容)的显示和交互(回复、删除等)
实现UI的XML布局:
moment_activity 47行 动态和评论列表的显示
moment_view 148行 动态的显示
comment_view 87行 一级评论(头像、姓名、内容)的显示
comment_container_view 20行 二级评论列表的显示
comment_item 10行 二级评论(姓名、内容)的显示
为什么没有实现MomentListFragment对应的XML布局？
因为MomentListFragment继承BaseHttpListFragment，内部用XListView作为缺省列表View，所以可以不用自己实现了。
实现数据获取、提交和处理的Java类:
HttpRequest +175行 数据的获取和提交(getMoment,...,deleteComment)
CommentUtil 140行 单层评论和和二级评论的处理
Comment 56行 评论数据
CommentItem 99行 评论的显示和交互数据
Moment 43行 动态数据
MomentItem 272行 动态的显示和交互数据
User 103行 用户数据
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文章题目：如何在Android应用中实现一个动态界面分享功能
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