所需要的包已上传
接下来就是代码了
先写adapter的
public class MyAdapter extends BaseAdapter{ private int TEXT_ONLY = 0; private int IMAGE_TEXT = 1; Context context; List<DataDataBean.ResultsBean> list; public MyAdapter(Context context, List<DataDataBean.ResultsBean> list) { this.context=context; this.list=list; } @Override public int getCount() { return list.size(); } @Override public Object getItem(int i) { return list.get(i); } @Override public long getItemId(int i) { return i; } @Override public int getViewTypeCount() { return 2; } @Override public int getItemViewType(int position) { if (list.get(position).getImages() != null){ return IMAGE_TEXT; } return TEXT_ONLY; } @Override public View getView(int i, View view, ViewGroup viewGroup) { if (getItemViewType(i) == TEXT_ONLY){ TextHolder holder; if (view == null){ view = View.inflate(context, R.layout.item_text_layout,null); holder = new TextHolder(); holder.textView = view.findViewById(R.id.text_title); view.setTag(holder); }else { holder = (TextHolder) view.getTag(); } holder.textView.setText(list.get(i).getDesc()); }else if (getItemViewType(i)==IMAGE_TEXT){ ImageHolder holder; if (view == null){ view = View.inflate(context, R.layout.item_image_layout,null); holder = new ImageHolder(); holder.textView = view.findViewById(R.id.tv); holder.imageView = view.findViewById(R.id.iv); view.setTag(holder); }else { holder = (ImageHolder) view.getTag(); } holder.textView.setText(list.get(i).getDesc()); //图片 Log.i("----",list.get(i).getImages().get(0)+"?imageView2/0/w/100"); ImageLoader.getInstance().displayImage(list.get(i).getImages().get(0)+"?imageView2/0/w/100",holder.imageView, ImageLoaderUtil.getRoundOption()); } return view; } private class TextHolder{ TextView textView; } private class ImageHolder{ TextView textView; ImageView imageView; } }
然后就是application了
public class BaseApplication extends Application { @Override public void onCreate() { super.onCreate(); //在应用创建的时候,,,对imageLoader进行全局配置 ImageLoaderUtil.init(this);//写一个工具类对imageLoader进行初始化...应用也可以作为上下文 } }
bean就不写了
fragment包
依次按照图片上的顺序写
public class FragmentDongTai extends Fragment{ @Nullable @Override public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) { View view = inflater.inflate(R.layout.fragment_dongtai_layout,container,false); return view; } @Override public void onActivityCreated(@Nullable Bundle savedInstanceState) { super.onActivityCreated(savedInstanceState); } }发现里的和上面差不多 不写了
之后是home
public class FragmentHome extends Fragment { private TabLayout tabLayout; private ViewPager vp; private List<String> list; @Nullable @Override public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) { View view = inflater.inflate(R.layout.fragment_home_layout,container,false); tabLayout = view.findViewById(R.id.tab); vp = view.findViewById(R.id.vp); return view; } @Override public void onActivityCreated(@Nullable Bundle savedInstanceState) { super.onActivityCreated(savedInstanceState); list = new ArrayList<>(); list.add("动态"); list.add("热门"); list.add("发现"); vp.setAdapter(new FragmentPagerAdapter(getChildFragmentManager()) { @Override public CharSequence getPageTitle(int position) { return list.get(position); } @Override public Fragment getItem(int position) { Fragment fragment=null; switch (position) { case 0: fragment=new FragmentDongTai(); break; case 1: fragment=new FragmentRemen(); break; case 2: fragment=new FragmentFaxian(); break; default: break; } return fragment; } @Override public int getCount() { return list.size(); } }); tabLayout.setupWithViewPager(vp); } }
这个是热门
public class FragmentRemen extends Fragment implements XListView.IXListViewListener { private XListView xlv; private int page_num = 1; private MyAdapter myAdapter; private List<DataDataBean.ResultsBean> list = new ArrayList<>(); @Nullable @Override public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) { View view = inflater.inflate(R.layout.fragment_remen_layout,container,false); xlv = view.findViewById(R.id.xlv); return view; } @Override public void onActivityCreated(@Nullable Bundle savedInstanceState) { super.onActivityCreated(savedInstanceState); xlv.setPullLoadEnable(true); xlv.setPullLoadEnable(true); xlv.setXListViewListener(this); getDataFromNet(); } private void getDataFromNet() { NetDataUtil.getData(getActivity(), "http://gank.io/api/data/Android/10/"+page_num, new JsonStringCallaBack() { @Override public void getJsonString(String json) { Gson gson = new Gson(); DataDataBean dataDataBean = gson.fromJson(json, DataDataBean.class); list.addAll(dataDataBean.getResults()); setAdapter(); xlv.stopLoadMore(); } }); } private void setAdapter() { if(myAdapter == null){ myAdapter = new MyAdapter(getActivity(), list); xlv.setAdapter(myAdapter); }else { myAdapter.notifyDataSetChanged();; } } @Override public void onRefresh() { getDataRefresh(); } private void getDataRefresh() { NetDataUtil.getData(getActivity(), "http://gank.io/api/data/Android/10/1", new JsonStringCallaBack() { @Override public void getJsonString(String json) { Gson gson = new Gson(); DataDataBean dataDataBean = gson.fromJson(json, DataDataBean.class); list.clear(); list.addAll(0,dataDataBean.getResults()); setAdapter(); xlv.stopRefresh(); String format = new SimpleDateFormat("HH:mm").format(new Date(System.currentTimeMillis())); xlv.setRefreshTime(format); } }); } @Override public void onLoadMore() { page_num ++; getDataFromNet(); } }
然后是inter包
public class FragmentXiangFa extends Fragment{ @Nullable @Override public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) { View view = inflater.inflate(R.layout.fragment_xiangfa_layout,container,false); return view; } @Override public void onActivityCreated(@Nullable Bundle savedInstanceState) { super.onActivityCreated(savedInstanceState); } }
util包的 imageloaderutil
public class ImageLoaderUtil { /** * 对imageLoader进行配置的方法 * @param context 上下文 */ public static void init(Context context) { //File cacheDir = StorageUtils.getCacheDirectory(context); //指定默认的硬盘(sd卡)的缓存文件夹路径 /** * 可以自己创建一个sd下面的文件夹作为硬盘缓存的路径 */ File file = new File(Environment.getExternalStorageDirectory(),"image"); if (! file.exists()){ file.mkdirs(); } //1.创建一个ImageLoaderConfiguration,,,图片加载器的配置对象 ImageLoaderConfiguration config = new ImageLoaderConfiguration.Builder(context) .threadPoolSize(3) // default 线程池内加载的数量 .threadPriority(Thread.NORM_PRIORITY - 2) // default 设置当前线程的优先级 .tasksProcessingOrder(QueueProcessingType.FIFO) // default .denyCacheImageMultipleSizesInMemory() //1 TB = 1024GB 1G=1024MB 1M = 1024KB 1KB = 1024BYTE //LruMemoryCache,,lru最近最少使用算法...内部维护的是LinkedHashMap,,当一张图片最近很少使用的时候会从mao集合里面移除 .memoryCache(new LruMemoryCache(2 * 1024 * 1024)) //指定内存缓存的大小,,2M,,可以通过自己的内存缓存实现 .memoryCacheSize(2 * 1024 * 1024) // 内存缓存的最大值 .memoryCacheSizePercentage(13) // default //指定硬盘/磁盘缓存的路径 .diskCache(new UnlimitedDiskCache(file)) // default 可以自定义缓存路径 .diskCacheSize(50 * 1024 * 1024) // 50 Mb sd卡(本地)缓存的最大值 .diskCacheFileCount(100) // 可以缓存的文件数量 .defaultDisplayImageOptions(DisplayImageOptions.createSimple()) // default .writeDebugLogs() // 打印debug log .build(); //开始构建 //2.对上面配置对象的初始化 ImageLoader.getInstance().init(config); } /** * 默认的展示图片的选项 * * @return */ public static DisplayImageOptions getDefaultOption() { DisplayImageOptions options = new DisplayImageOptions.Builder() .showImageOnLoading(R.mipmap.ic_launcher) // 设置图片下载期间显示的图片 .showImageForEmptyUri(R.mipmap.ic_launcher) // 设置图片Uri为空或是错误的时候显示的图片 .showImageOnFail(R.mipmap.ic_launcher) // 设置图片加载或解码过程中发生错误显示的图片 .resetViewBeforeLoading(true) // default 设置图片在加载前是否重置、复位 .cacheInMemory(true) // default 设置下载的图片是否缓存在内存中 .cacheOnDisk(true) // default 设置下载的图片是否缓存在SD卡中 .considerExifParams(true) // default .imageScaleType(ImageScaleType.EXACTLY_STRETCHED) // default 设置图片以如何的编码方式显示 .bitmapConfig(Bitmap.Config.RGB_565) // default 设置图片的解码类型 .displayer(new SimpleBitmapDisplayer()) // default 还可以设置圆角图片new RoundedBitmapDisplayer(20) .build(); return options; } /** * 展示圆角的选项 * @return */ public static DisplayImageOptions getRoundOption() { DisplayImageOptions options = new DisplayImageOptions.Builder() .showImageOnLoading(R.mipmap.ic_launcher) // 设置图片下载期间显示的图片 .showImageForEmptyUri(R.mipmap.ic_launcher) // 设置图片Uri为空或是错误的时候显示的图片 .showImageOnFail(R.mipmap.ic_launcher) // 设置图片加载或解码过程中发生错误显示的图片 .resetViewBeforeLoading(true) // default 设置图片在加载前是否重置、复位 .cacheInMemory(true) // default 设置下载的图片是否缓存在内存中 .cacheOnDisk(true) // default 设置下载的图片是否缓存在SD卡中 .considerExifParams(true) // default .imageScaleType(ImageScaleType.EXACTLY_STRETCHED) // default 设置图片以如何的编码方式显示 .bitmapConfig(Bitmap.Config.RGB_565) // default 设置图片的解码类型 .displayer(new RoundedBitmapDisplayer(20)) // default 还可以设置圆角图片new RoundedBitmapDisplayer(20) .build(); return options; } /** * 展示圆形的选项 * @return */ public static DisplayImageOptions getCircleOption() { DisplayImageOptions options = new DisplayImageOptions.Builder() .showImageOnLoading(R.mipmap.ic_launcher) // 设置图片下载期间显示的图片 .showImageForEmptyUri(R.mipmap.ic_launcher) // 设置图片Uri为空或是错误的时候显示的图片 .showImageOnFail(R.mipmap.ic_launcher) // 设置图片加载或解码过程中发生错误显示的图片 .resetViewBeforeLoading(true) // default 设置图片在加载前是否重置、复位 .cacheInMemory(true) // default 设置下载的图片是否缓存在内存中 .cacheOnDisk(true) // default 设置下载的图片是否缓存在SD卡中 .considerExifParams(true) // default .imageScaleType(ImageScaleType.EXACTLY_STRETCHED) // default 设置图片以如何的编码方式显示 .bitmapConfig(Bitmap.Config.RGB_565) // default 设置图片的解码类型 .displayer(new CircleBitmapDisplayer()) // default 还可以设置圆角图片new RoundedBitmapDisplayer(20) .build(); return options; } }
public class NetDataUtil { /** * 获取数据之前先判断网络状态 * @param path * @param callaBack */ public static void getData(Context context,final String path, final JsonStringCallaBack callaBack) { if (NetWorkUtil.isConn(context)){ Toast.makeText(context,"网络可用",Toast.LENGTH_SHORT).show(); AsyncTask<Void, Void, String> asyncTask = new AsyncTask<Void, Void, String>() { @Override protected String doInBackground(Void... voids) { try { URL url = new URL(path); HttpURLConnection connection = (HttpURLConnection) url.openConnection(); connection.setRequestMethod("GET"); connection.setReadTimeout(5000); connection.setConnectTimeout(5000); int responseCode = connection.getResponseCode(); if (responseCode == 200){ InputStream inputStream = connection.getInputStream(); String json = streamToString(inputStream,"utf-8"); return json; } } catch (Exception e) { e.printStackTrace(); } return null; } @Override protected void onPostExecute(String json) { //异步拿回这个json串,交给具体解析的那个类 callaBack.getJsonString(json); } }; asyncTask.execute(); }else { NetWorkUtil.showNoNetWorkDlg(context); } } private static String streamToString(InputStream inputStream, String charset) { try { InputStreamReader inputStreamReader = new InputStreamReader(inputStream,charset); BufferedReader bufferedReader = new BufferedReader(inputStreamReader); String s = null; StringBuilder builder = new StringBuilder(); while ((s = bufferedReader.readLine()) != null){ builder.append(s); } bufferedReader.close(); return builder.toString(); } catch (Exception e) { e.printStackTrace(); } return null; } }
public class NetWorkUtil { /** * 这个方法是判断网络状态是否可用的 * @param context * @return */ public static boolean isConn(Context context){ boolean bisConnFlag=false; //1.获取网络连接的管理对象 ConnectivityManager conManager = (ConnectivityManager)context.getSystemService(Context.CONNECTIVITY_SERVICE); //2.通过管理者对象拿到网络的信息 NetworkInfo network = conManager.getActiveNetworkInfo(); if(network!=null){ //3.网络状态是否可用的返回值 bisConnFlag=network.isAvailable(); } return bisConnFlag; } /** * 如果没有网络 弹出dialog对话框,,,是否进入设置网络的页面 * @param context */ public static void showNoNetWorkDlg(final Context context) { AlertDialog.Builder builder = new AlertDialog.Builder(context); builder.setIcon(R.mipmap.ic_launcher) // .setTitle("警告") // .setMessage("当前无网络,是否去设置?").setPositiveButton("设置", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { // 跳转到系统的网络设置界面 Intent intent = null; // 先判断当前系统版本 if(android.os.Build.VERSION.SDK_INT > 10){ // 3.0以上 intent = new Intent(android.provider.Settings.ACTION_WIRELESS_SETTINGS); }else{ intent = new Intent(); intent.setClassName("com.android.settings", "com.android.settings.WirelessSettings"); } context.startActivity(intent); } }).setNegativeButton("取消", null).show(); } }
public class MainActivity extends AppCompatActivity { private RadioGroup rg; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); rg = (RadioGroup) findViewById(R.id.radio_group); getSupportFragmentManager().beginTransaction().replace(R.id.frame_layout,new FragmentHome()).commit(); rg.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() { @Override public void onCheckedChanged(RadioGroup radioGroup, int i) { switch (i) { case R.id.radio_01: getSupportFragmentManager().beginTransaction().replace(R.id.frame_layout,new FragmentHome()).commit(); break; case R.id.radio_02: getSupportFragmentManager().beginTransaction().replace(R.id.frame_layout,new FragmentXiangFa()).commit(); break; case R.id.radio_03: getSupportFragmentManager().beginTransaction().replace(R.id.frame_layout,new FragmentMarket()).commit(); break; case R.id.radio_04: getSupportFragmentManager().beginTransaction().replace(R.id.frame_layout,new FragmentNotify()).commit(); break; case R.id.radio_05: getSupportFragmentManager().beginTransaction().replace(R.id.frame_layout,new FragmentMore()).commit(); break; default: break; } } }); } }
selector里的
<item android:state_checked="true" android:drawable="@color/colorAccent"/> <item android:state_checked="false" android:drawable="@color/colorPrimary"/> <item android:drawable="@color/colorPrimary"/>
布局 mainactivity
<?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent"> <FrameLayout android:layout_above="@+id/radio_group" android:id="@+id/frame_layout" android:layout_width="match_parent" android:layout_height="match_parent"> </FrameLayout> <RadioGroup android:id="@+id/radio_group" android:layout_alignParentBottom="true" android:orientation="horizontal" android:layout_width="match_parent" android:layout_height="40dp"> <RadioButton android:id="@+id/radio_01" android:padding="10dp" android:button="@null" android:gravity="center" android:background="@drawable/radio_selector" android:checked="true" android:text="首页" android:layout_width="0dp" android:layout_weight="1" android:layout_height="match_parent" /> <RadioButton android:id="@+id/radio_02" android:padding="10dp" android:button="@null" android:gravity="center" android:background="@drawable/radio_selector" android:text="想法" android:layout_width="0dp" android:layout_weight="1" android:layout_height="match_parent" /> <RadioButton android:id="@+id/radio_03" android:padding="10dp" android:button="@null" android:gravity="center" android:background="@drawable/radio_selector" android:text="市场" android:layout_width="0dp" android:layout_weight="1" android:layout_height="match_parent" /> <RadioButton android:id="@+id/radio_04" android:padding="10dp" android:button="@null" android:gravity="center" android:background="@drawable/radio_selector" android:text="通知" android:layout_width="0dp" android:layout_weight="1" android:layout_height="match_parent" /> <RadioButton android:id="@+id/radio_05" android:padding="10dp" android:button="@null" android:gravity="center" android:background="@drawable/radio_selector" android:text="更多" android:layout_width="0dp" android:layout_weight="1" android:layout_height="match_parent" /> </RadioGroup> </RelativeLayout>
home
<?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="match_parent" android:orientation="vertical" xmlns:app="http://schemas.android.com/apk/res-auto"> <EditText android:padding="10dp" android:layout_width="match_parent" android:layout_height="wrap_content" android:text="羞羞的铁拳" /> <android.support.design.widget.TabLayout android:id="@+id/tab" app:tabGravity="center" app:tabIndicatorColor="@color/colorAccent" app:tabMode="scrollable" app:tabSelectedTextColor="@color/colorPrimaryDark" app:tabTextColor="@color/colorPrimary" android:layout_width="match_parent" android:layout_height="40dp"> </android.support.design.widget.TabLayout> <android.support.v4.view.ViewPager android:id="@+id/vp" android:layout_width="match_parent" android:layout_height="match_parent"> </android.support.v4.view.ViewPager> </LinearLayout>
别的layout举个例子吧
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:background="#123456" android:layout_width="match_parent" android:layout_height="match_parent"> </LinearLayout>
热门
<?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="match_parent"> <com.bawei.administrator.lianxi_1016ev.view.XListView android:id="@+id/xlv" android:layout_width="match_parent" android:layout_height="match_parent"></com.bawei.administrator.lianxi_1016ev.view.XListView> </LinearLayout>
有图有文字的布局
<?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="match_parent"> <TextView android:id="@+id/tv" android:layout_width="0dp" android:layout_weight="1" android:layout_height="wrap_content" /> <ImageView android:id="@+id/iv" android:layout_width="100dp" android:layout_height="100dp" /> </LinearLayout>
只有文字的
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:padding="10dp" android:orientation="vertical" android:layout_height="match_parent"> <TextView android:id="@+id/text_title" android:layout_width="match_parent" android:layout_height="wrap_content" /> </LinearLayout>
之后就结束了 还差几个权限
<uses-permission android:name="android.permission.INTERNET"/> <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/> <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/> <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
2040
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