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番禺网站建设效果,网站怎么被黑,wordpress 签到,商城网站开发方案花艺分享平台 一、课程设计的目的与要求 通过软件开发的实践训练#xff0c;使学生进一步掌握软件工程的方法和技术#xff0c;提高软件开发的实际能力#xff0c;培养工程设计能力和综合分析、解决问题的能力。 具体如下#xff1a; 学习和实践在分析和设计计算机应用…花艺分享平台一、课程设计的目的与要求通过软件开发的实践训练使学生进一步掌握软件工程的方法和技术提高软件开发的实际能力培养工程设计能力和综合分析、解决问题的能力。具体如下学习和实践在分析和设计计算机应用系统所需要的知识,包括面向对象的系统分析与设计,编码和测试方面的知识熟悉自动化的软件开发工具 AndroidStudio3并将其运用于软件开发的全过程进一步加强和提高软件工程文档的编写能力二、设计正文1.概述1.1 课题描述随着网络信息的发展网络在人们生活中的应用越来越广泛。人们分享自己的生活。但生活的任务繁重人们在繁忙的工作生活中分享花的生活带来了很大的麻烦该“花艺”应用 App提供给喜爱花植物的用户一个分享平台用户可以分享自己的插花作品分享自己精美的图片内容。1.2 系统目标“花艺”应用 App提供给喜爱花植物的用户一个分享平台用户可以分享自己的插花作品分享自己精美的图片内容。同时该平台还是提供给用户分享好看的花签小卡片卡片里记录可以记录日常或者记录记录学习内容以及花艺作品心得打造一个花类植物的知识信息以及花艺共享平台。同时使用了隐式意图调用手机相机和相册以及基本逻辑功能实现。1.3 环境a) 操作系统 Windows10b) 使用软件代码编写AndroidStudio3数据库MySQL文档编写Microsoft Word 2007.c) 开发语言Java2.系统需求分析花艺 App 是一款手机应用软件提供服务主要为花艺学堂每日推出原创插花为花艺爱好者提供美学指导原创精美壁纸每日更新自动匹配适应手机屏幕花艺研究社为爱花人事和从业者提供系统的花艺教程。较为灵活的文章管理功能。根据应用的具体情况系统的主要功能包括用户功能 功能登录、退出、个人管理花签日历卡浏览花钱内容和管理个人花签管理查看花签、修改花签、删除花签增加花签知乎新闻热点专题和其他专题管理员功能登录、退出、个人管理花签管理查看花签、修改花签、删除花签增加花签知乎新闻热点专题和其他专题2.1 用例图管理者用例1.登录管理员登录。图表 a.1 管理者登录用例图图表 1 管理员管理花签客户用例图1.登录用户登录。图表 b.1 客户登录用例图图表 2 用户管理花签2.2 项目结构3.系统总体设计系统模块图4.详细设计5.系统实现具体代码已打包6.测试登录界面三、参考文献李宁宁.《基于 Android Studio 的应用程序开发教程》郭霖. 《第一行代码》部分源代码package com.example.liuyi; import android.os.Bundle; import android.view.LayoutInflater; import android.view.View; import android.view.Menu; import android.widget.ImageView; import android.widget.Toast; import com.alibaba.fastjson.JSON; import com.alibaba.fastjson.TypeReference; import com.bumptech.glide.Glide; import com.bumptech.glide.load.engine.DiskCacheStrategy; import com.google.android.material.floatingactionbutton.FloatingActionButton; import com.google.android.material.snackbar.Snackbar; import com.google.android.material.navigation.NavigationView; import androidx.navigation.NavController; import androidx.navigation.Navigation; import androidx.navigation.ui.AppBarConfiguration; import androidx.navigation.ui.NavigationUI; import androidx.drawerlayout.widget.DrawerLayout; import androidx.appcompat.app.AppCompatActivity; import androidx.appcompat.widget.Toolbar; import org.xutils.common.Callback; import org.xutils.http.RequestParams; import org.xutils.x; import java.util.HashMap; import java.util.List; public class MainActivity extends AppCompatActivity { private AppBarConfiguration mAppBarConfiguration; Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); Toolbar toolbar findViewById(R.id.toolbar); setSupportActionBar(toolbar); DrawerLayout drawer findViewById(R.id.drawer_layout); NavigationView navigationView findViewById(R.id.nav_view); // Passing each menu ID as a set of Ids because each // menu should be considered as top level destinations. mAppBarConfiguration new AppBarConfiguration.Builder( R.id.nav_gallery, R.id.nav_home, R.id.nav_slideshow,R.id.nav_share) .setDrawerLayout(drawer) .build(); NavController navController Navigation.findNavController(this, R.id.nav_host_fragment); NavigationUI.setupActionBarWithNavController(this, navController, mAppBarConfiguration); NavigationUI.setupWithNavController(navigationView, navController); } // private void getPirture(final String result, View view) { // final ImageView imageView view.findViewById(R.id.imageView); // // imageView.setOnClickListener(new View.OnClickListener() { // Override // public void onClick(View v) { // Glide.with(MainActivity.this).load(result) // .fitCenter() // .centerCrop()//会裁减图片填充布局 // .diskCacheStrategy(DiskCacheStrategy.ALL) // .placeholder(R.drawable.hua_daisy).into(imageView); // } // }); // // // } Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.main, menu); return true; } Override public boolean onSupportNavigateUp() { NavController navController Navigation.findNavController(this, R.id.nav_host_fragment); return NavigationUI.navigateUp(navController, mAppBarConfiguration) || super.onSupportNavigateUp(); } }package com.example.liuyi; import android.content.Context; import android.util.AttributeSet; import android.view.Gravity; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.FrameLayout; import androidx.annotation.Nullable; import androidx.recyclerview.widget.GridLayoutManager; import androidx.recyclerview.widget.LinearLayoutManager; import androidx.recyclerview.widget.RecyclerView; import androidx.recyclerview.widget.StaggeredGridLayoutManager; import androidx.swiperefreshlayout.widget.SwipeRefreshLayout; import com.example.liuyi.ui.footerView.BaseFooterView; import com.example.liuyi.ui.footerView.SimpleFooterView; /** * auther deadline * time 2016/10/22 * SwipeRefreshLayout recyclerView */ public class SwipeRecyclerView extends FrameLayout implements SwipeRefreshLayout.OnRefreshListener{ private View mEmptyView; private BaseFooterView mFootView; private RecyclerView recyclerView; private SwipeRefreshLayout mRefreshLayout; private RecyclerView.LayoutManager mLayoutManager; private OnLoadListener mListener; private GridLayoutManager.SpanSizeLookup mSpanSizeLookup; private DataObserver mDataObserver; private WrapperAdapter mWrapperAdapter; private boolean isEmptyViewShowing; private boolean isLoadingMore; private boolean isLoadMoreEnable; private boolean isRefreshEnable; private int lastVisiablePosition 0; public SwipeRecyclerView(Context context) { this(context, null); } public SwipeRecyclerView(Context context, Nullable AttributeSet attrs) { this(context, attrs, 0); } public SwipeRecyclerView(Context context, Nullable AttributeSet attrs, int defStyle) { super(context, attrs, defStyle); setupSwipeRecyclerView(); } private void setupSwipeRecyclerView() { isEmptyViewShowing false; isRefreshEnable true; isLoadingMore false; isLoadMoreEnable true; mFootView new SimpleFooterView(getContext()); View view LayoutInflater.from(getContext()).inflate(R.layout.layout_swipe_recyclerview, this); mRefreshLayout (SwipeRefreshLayout) view.findViewById(R.id.SwipeRefreshLayout); recyclerView (RecyclerView) view.findViewById(R.id.RecyclerView); mLayoutManager recyclerView.getLayoutManager(); mRefreshLayout.setOnRefreshListener(this); recyclerView.setOnScrollListener(new RecyclerView.OnScrollListener() { Override public void onScrollStateChanged(RecyclerView recyclerView, int newState) { super.onScrollStateChanged(recyclerView, newState); } Override public void onScrolled(RecyclerView recyclerView, int dx, int dy) { super.onScrolled(recyclerView, dx, dy); // do nothing if load more is not enable or refreshing or loading more if(!isLoadMoreEnable || isRefreshing() || isLoadingMore){ return; } //get the lastVisiablePosition mLayoutManager recyclerView.getLayoutManager(); if(mLayoutManager instanceof LinearLayoutManager){ lastVisiablePosition ((LinearLayoutManager)mLayoutManager).findLastVisibleItemPosition(); }else if(mLayoutManager instanceof GridLayoutManager){ lastVisiablePosition ((GridLayoutManager)mLayoutManager).findLastCompletelyVisibleItemPosition(); }else if(mLayoutManager instanceof StaggeredGridLayoutManager){ int[] into new int[((StaggeredGridLayoutManager) mLayoutManager).getSpanCount()]; ((StaggeredGridLayoutManager) mLayoutManager).findLastVisibleItemPositions(into); lastVisiablePosition findMax(into); } int childCount mWrapperAdapter null ? 0 : mWrapperAdapter.getItemCount(); if(childCount 1 lastVisiablePosition childCount - 1){ if(mListener ! null){ isLoadingMore true; mListener.onLoadMore(); } } } }); } private int findMax(int[] lastPositions) { int max lastPositions[0]; for (int value : lastPositions) { if (value max) { max value; } } return max; } /** * set is enable pull to refresh * param refreshEnable */ public void setRefreshEnable(boolean refreshEnable){ isRefreshEnable refreshEnable; mRefreshLayout.setEnabled(isRefreshEnable); } public boolean getRefreshEnable(){ return isRefreshEnable; } /** * set is loading more enable * param loadMoreEnable * if true when recyclerView scroll to bottom load more action will be trigger */ public void setLoadMoreEnable(boolean loadMoreEnable) { if(!loadMoreEnable){ stopLoadingMore(); } isLoadMoreEnable loadMoreEnable; } public boolean getLoadMoreEnable(){ return isLoadMoreEnable; } /** * get is refreshing * return */ public boolean isRefreshing(){ return mRefreshLayout.isRefreshing(); } /** * get is loading more * return */ public boolean isLoadingMore(){ return isLoadingMore; } /** * is empty view showing * return */ public boolean isEmptyViewShowing(){ return isEmptyViewShowing; } /** * you may need set some other attributes of swipeRefreshLayout * return * swipeRefreshLayout */ public SwipeRefreshLayout getSwipeRefreshLayout(){ return mRefreshLayout; } /** * you may need set some other attributes of RecyclerView * return * RecyclerView */ public RecyclerView getRecyclerView(){ return recyclerView; } /** * set load more listener * param listener */ public void setOnLoadListener(OnLoadListener listener){ mListener listener; } /** * support for GridLayoutManager * param spanSizeLookup */ public void setSpanSizeLookup(GridLayoutManager.SpanSizeLookup spanSizeLookup){ this.mSpanSizeLookup spanSizeLookup; } /** * set the footer view * param footerView * the view to be showing when pull up */ public void setFooterView(BaseFooterView footerView){ if(footerView ! null) { this.mFootView footerView; } } /** * set a empty view like listview * param emptyView * the view to be showing when the data set size is zero */ public void setEmptyView(View emptyView){ if(mEmptyView ! null){ removeView(mEmptyView); } this.mEmptyView emptyView; if(mDataObserver ! null) { mDataObserver.onChanged(); } } /** * set adapter to recyclerView * param adapter */ public void setAdapter(RecyclerView.Adapter adapter){ if(adapter ! null) { if(mDataObserver null){ mDataObserver new DataObserver(); } mWrapperAdapter new WrapperAdapter(adapter); recyclerView.setAdapter(mWrapperAdapter); adapter.registerAdapterDataObserver(mDataObserver); mDataObserver.onChanged(); } } /** * refresh or load more completed */ public void complete(){ mRefreshLayout.setRefreshing(false); stopLoadingMore(); } /** * set refreshing * if you want load data when first in, you can setRefreshing(true) * after {link #setOnLoadListener(OnLoadListener)} * param refreshing */ public void setRefreshing(boolean refreshing){ mRefreshLayout.setRefreshing(refreshing); if(refreshing !isLoadingMore mListener ! null){ mListener.onRefresh(); } } /** * stop loading more without animation */ public void stopLoadingMore(){ isLoadingMore false; if(mWrapperAdapter ! null) { mWrapperAdapter.notifyItemRemoved(mWrapperAdapter.getItemCount()); } } /** * call method {link OnLoadListener#onRefresh()} */ Override public void onRefresh() { if(mListener ! null){ //reset footer view status loading if(mFootView ! null){ mFootView.onLoadingMore(); } mListener.onRefresh(); } } public void onNetChange(boolean isAvailable) { if(mFootView ! null){ mFootView.onNetChange(isAvailable); } } public void onLoadingMore() { if(mFootView ! null){ mFootView.onLoadingMore(); } } public void onNoMore(CharSequence message) { if(mFootView ! null){ mFootView.onNoMore(message); } } public void onError(CharSequence message) { if(mFootView ! null){ mFootView.onError(message); } } private class WrapperAdapter extends RecyclerView.AdapterRecyclerView.ViewHolder{ public static final int TYPE_FOOTER 0x100; RecyclerView.AdapterRecyclerView.ViewHolder mInnerAdapter; public WrapperAdapter(RecyclerView.AdapterRecyclerView.ViewHolder adapter){ this.mInnerAdapter adapter; } public boolean isLoadMoreItem(int position){ return isLoadMoreEnable position getItemCount() - 1; } Override public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) { if(TYPE_FOOTER viewType){ return new FooterViewHolder(mFootView); } return mInnerAdapter.onCreateViewHolder(parent, viewType); } Override public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) { if(isLoadMoreItem(position)){ return; } mInnerAdapter.onBindViewHolder(holder, position); } Override public int getItemViewType(int position) { if(isLoadMoreItem(position)){ return TYPE_FOOTER; }else{ return mInnerAdapter.getItemViewType(position); } } Override public int getItemCount() { int count mInnerAdapter null ? 0 : mInnerAdapter.getItemCount(); //without loadingMore when adapter size is zero if(count 0){ return 0; } return isLoadMoreEnable ? count 1 : count; } Override public long getItemId(int position) { return mInnerAdapter.getItemId(position); } Override public void onViewAttachedToWindow(RecyclerView.ViewHolder holder) { ViewGroup.LayoutParams lp holder.itemView.getLayoutParams(); if (lp ! null lp instanceof StaggeredGridLayoutManager.LayoutParams isLoadMoreItem(holder.getLayoutPosition())) { StaggeredGridLayoutManager.LayoutParams p (StaggeredGridLayoutManager.LayoutParams) lp; p.setFullSpan(true); } mInnerAdapter.onViewAttachedToWindow(holder); } Override public void onViewDetachedFromWindow(RecyclerView.ViewHolder holder) { mInnerAdapter.onViewDetachedFromWindow(holder); } Override public void onAttachedToRecyclerView(RecyclerView recyclerView) { RecyclerView.LayoutManager manager recyclerView.getLayoutManager(); if (manager instanceof GridLayoutManager) { final GridLayoutManager gridManager ((GridLayoutManager) manager); gridManager.setSpanSizeLookup(new GridLayoutManager.SpanSizeLookup() { Override public int getSpanSize(int position) { boolean isLoadMore isLoadMoreItem(position); if(mSpanSizeLookup ! null !isLoadMore){ return mSpanSizeLookup.getSpanSize(position); } return isLoadMore ? gridManager.getSpanCount() : 1; } }); } mInnerAdapter.onAttachedToRecyclerView(recyclerView); } Override public void onDetachedFromRecyclerView(RecyclerView recyclerView) { mInnerAdapter.onDetachedFromRecyclerView(recyclerView); } Override public boolean onFailedToRecycleView(RecyclerView.ViewHolder holder) { return mInnerAdapter.onFailedToRecycleView(holder); } Override public void registerAdapterDataObserver(RecyclerView.AdapterDataObserver observer) { mInnerAdapter.registerAdapterDataObserver(observer); } Override public void unregisterAdapterDataObserver(RecyclerView.AdapterDataObserver observer) { mInnerAdapter.unregisterAdapterDataObserver(observer); } Override public void onViewRecycled(RecyclerView.ViewHolder holder) { mInnerAdapter.onViewRecycled(holder); } } /** * ViewHolder of footerView */ private class FooterViewHolder extends RecyclerView.ViewHolder { public FooterViewHolder(View itemView) { super(itemView); } } /** * a inner class used to monitor the dataSet change * p * because wrapperAdapter do not know when wrapperAdapter.mInnerAdapter * p * dataSet changed, these method are final */ class DataObserver extends RecyclerView.AdapterDataObserver{ Override public void onChanged() { super.onChanged(); RecyclerView.Adapter adapter recyclerView.getAdapter(); if(adapter ! null mEmptyView ! null){ int count 0; if(isLoadMoreEnable adapter.getItemCount() ! 0){ count ; } if(adapter.getItemCount() count){ isEmptyViewShowing true; if(mEmptyView.getParent() null){ LayoutParams params new LayoutParams( ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT); params.gravity Gravity.CENTER; addView(mEmptyView, params); } recyclerView.setVisibility(GONE); mEmptyView.setVisibility(VISIBLE); }else{ isEmptyViewShowing false; mEmptyView.setVisibility(GONE); recyclerView.setVisibility(VISIBLE); } } mWrapperAdapter.notifyDataSetChanged(); } Override public void onItemRangeChanged(int positionStart, int itemCount) { super.onItemRangeChanged(positionStart, itemCount); mWrapperAdapter.notifyItemRangeChanged(positionStart, itemCount); } Override public void onItemRangeChanged(int positionStart, int itemCount, Object payload) { super.onItemRangeChanged(positionStart, itemCount, payload); mWrapperAdapter.notifyItemRangeChanged(positionStart, itemCount, payload); } Override public void onItemRangeInserted(int positionStart, int itemCount) { super.onItemRangeInserted(positionStart, itemCount); mWrapperAdapter.notifyItemRangeInserted(positionStart, itemCount); } Override public void onItemRangeMoved(int fromPosition, int toPosition, int itemCount) { super.onItemRangeMoved(fromPosition, toPosition, itemCount); mWrapperAdapter.notifyItemRangeRemoved(fromPosition, itemCount); } Override public void onItemRangeRemoved(int positionStart, int itemCount) { super.onItemRangeRemoved(positionStart, itemCount); mWrapperAdapter.notifyItemRangeRemoved(positionStart, itemCount); } } public interface OnLoadListener { void onRefresh(); void onLoadMore(); } }?xml version1.0 encodingutf-8? androidx.drawerlayout.widget.DrawerLayout xmlns:androidhttp://schemas.android.com/apk/res/android xmlns:apphttp://schemas.android.com/apk/res-auto xmlns:toolshttp://schemas.android.com/tools android:idid/drawer_layout android:layout_widthmatch_parent android:layout_heightmatch_parent android:fitsSystemWindowstrue tools:openDrawerstart include layoutlayout/app_bar_main android:layout_widthmatch_parent android:layout_heightmatch_parent / com.google.android.material.navigation.NavigationView android:idid/nav_view android:layout_widthwrap_content android:layout_heightmatch_parent android:layout_gravitystart android:fitsSystemWindowstrue app:headerLayoutlayout/nav_header_main app:menumenu/activity_main_drawer / /androidx.drawerlayout.widget.DrawerLayout♻️ 资源大小15.9MB➡️资源下载https://download.csdn.net/download/s1t16/87404181注更多内容可关注微信公众号【神仙别闹】如当前文章或代码侵犯了您的权益请私信作者删除