MainActivity.java
public class MainActivity extends AppCompatActivity { //图片引导页private ViewPager pager;private Button button;ArrayList<Integer> list;private SharedPreferences sharedPreferences;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);pager = findViewById(R.id.pager);button = findViewById(R.id.btn);list = new ArrayList<>();list.add(R.drawable.e);list.add(R.drawable.r);list.add(R.drawable.t);list.add(R.drawable.y);sharedPreferences = getSharedPreferences("ss", MODE_PRIVATE);Boolean aa=sharedPreferences.getBoolean("a",false);if (aa){Intent intent = new Intent(MainActivity.this, SecondActivity.class);startActivity(intent);}pager.setAdapter(new Madapter());pager.setOnPageChangeListener(new ViewPager.OnPageChangeListener() {@Overridepublic void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {}@Overridepublic void onPageSelected(int position) {switch (position){case 0:button.setVisibility(View.GONE);break;case 1:button.setVisibility(View.GONE);break;case 2:button.setVisibility(View.GONE);break;case 3:button.setVisibility(View.VISIBLE);break;}}@Overridepublic void onPageScrollStateChanged(int state) {}});button.setOnClickListener(new View.OnClickListener() {@Overridepublic void onClick(View view) {SharedPreferences.Editor edit = sharedPreferences.edit();edit.putBoolean("a",true);mit();Intent intent = new Intent(MainActivity.this, SecondActivity.class);startActivity(intent);}});}class Madapter extends PagerAdapter{@Overridepublic int getCount() {return list.size();}@Overridepublic boolean isViewFromObject(@NonNull View view, @NonNull Object object) {return view==object;}@NonNull@Overridepublic Object instantiateItem(@NonNull ViewGroup container, int position) {ImageView imageView = new ImageView(MainActivity.this);imageView.setScaleType(ImageView.ScaleType.FIT_XY);imageView.setImageResource(list.get(position));container.addView(imageView);return imageView;}@Overridepublic void destroyItem(@NonNull ViewGroup container, int position, @NonNull Object object) {container.removeView((View) object);}}}
activity_main.xml
<LinearLayoutandroid:layout_width="match_parent"android:layout_height="match_parent"android:orientation="vertical"><android.support.v4.view.ViewPagerandroid:id="@+id/pager"android:layout_width="match_parent"android:layout_height="match_parent"></android.support.v4.view.ViewPager><Buttonandroid:id="@+id/btn"android:layout_width="wrap_content"android:layout_height="wrap_content"android:text="跳过"android:layout_marginTop="-200dp"android:layout_gravity="center_horizontal"android:visibility="gone"/></LinearLayout>
SecondActivity.java
public class SecondActivity extends BaseActivity{ //主页面private ViewPager pager;private TabLayout tabLayout;private DrawerLayout drawerLayout;private ActionBarDrawerToggle toggle;@Overrideprotected int getContentView() {return R.layout.second;}@Overrideprotected void findView() {pager = findViewById(R.id.pager);tabLayout = findViewById(R.id.tab);drawerLayout = findViewById(R.id.draw);}@Overrideprotected void initData() {pager.setAdapter(new FragmentPagerAdapter(getSupportFragmentManager()) {@Overridepublic Fragment getItem(int position) {Fragment fragment=new Fragment();switch (position){case 0:fragment=new Afragment();break;case 1:fragment=new Bfragment();break;case 2:fragment=new Cfragment();break;case 3:fragment=new Dfragment();break;}return fragment;}@Overridepublic int getCount() {return 4;}});loadTabLayout();setDrawerLayout();}private void setDrawerLayout() {ActionBar actionBar = getSupportActionBar();actionBar.setDisplayHomeAsUpEnabled(true);toggle =new ActionBarDrawerToggle(this, drawerLayout, R.string.open, R.string.close);toggle.syncState();drawerLayout.addDrawerListener(toggle);}@Overridepublic boolean onOptionsItemSelected(MenuItem item) {if (toggle.onOptionsItemSelected(item)){return true;}return super.onOptionsItemSelected(item);}private void loadTabLayout() {tabLayout.addTab(tabLayout.newTab());tabLayout.addTab(tabLayout.newTab());tabLayout.addTab(tabLayout.newTab());tabLayout.addTab(tabLayout.newTab());tabLayout.setupWithViewPager(pager);tabLayout.getTabAt(0).setText("蒸");tabLayout.getTabAt(1).setText("蒸");tabLayout.getTabAt(2).setText("日");tabLayout.getTabAt(3).setText("上");}}second.xml<android.support.v4.widget.DrawerLayout xmlns:android="/apk/res/android"android:layout_width="match_parent"android:layout_height="match_parent"android:id="@+id/draw"android:orientation="vertical"><LinearLayoutandroid:layout_width="match_parent"android:layout_height="match_parent"android:orientation="vertical"><android.support.v4.view.ViewPagerandroid:id="@+id/pager"android:layout_width="match_parent"android:layout_height="0dp"android:layout_weight="9"/><android.support.design.widget.TabLayoutandroid:id="@+id/tab"android:layout_width="match_parent"android:layout_height="0dp"android:layout_weight="1"/></LinearLayout><fragmentclass=".yuekaolx.fragment.Efragment"android:layout_width="match_parent"android:layout_height="match_parent"android:layout_gravity="start"/></android.support.v4.widget.DrawerLayout>
Afragment.java
public class Afragment extends Fragment{ //xlv显示Dao dao;private XListView xListView;public int page=1;public String urlString="/api/news/news.php?type=top&page="+page+"";private MyBaseAdapter adapter;@Nullable@Overridepublic View onCreateView(@NonNull final LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {View view = View.inflate(getActivity(), R.layout.afrag, null);dao = new Dao(getActivity());//dao.query();//dao.insert("aa","aaa");xListView = view.findViewById(R.id.xlv);adapter = new MyBaseAdapter(getLayoutInflater());xListView.setAdapter(adapter);xListView.setPullLoadEnable(true);xListView.setPullRefreshEnable(true);xListView.setXListViewListener(new XListView.IXListViewListener() {@Overridepublic void onRefresh() {page=1;initData(urlString);}@Overridepublic void onLoadMore() {initData(urlString);}});initData(urlString);xListView.setOnItemClickListener(new AdapterView.OnItemClickListener() {@Overridepublic void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {String title=adapter.getList().get(i-1).getTitle();String img = adapter.getList().get(i - 1).getThumbnail_pic_s();Intent intent = new Intent(getActivity(), ThredActivity.class);intent.putExtra("title",title);intent.putExtra("img",img);startActivity(intent);}});return view;}private void initData(String urlString) {new AsyncTask<String, Void, List<ResponseBean.DataBean>>() {@Overrideprotected List<ResponseBean.DataBean> doInBackground(String... strings) {String datas = Http.requestData(strings[0]);ResponseBean responseBean = new Gson().fromJson(datas, ResponseBean.class);if (responseBean!=null){return responseBean.getData();}return null;}@Overrideprotected void onPostExecute(List<ResponseBean.DataBean> responseBeans) {super.onPostExecute(responseBeans);caseR((ArrayList<ResponseBean.DataBean>) responseBeans);closeXlv();}}.execute(urlString);}private void caseR(ArrayList<ResponseBean.DataBean> bs){if (page==1){adapter.setDatas(bs);}else {adapter.addDatas(bs);}}private void closeXlv(){page++;xListView.stopRefresh();xListView.stopLoadMore();}}
Bfragment.java
public class Bfragment extends Fragment{ //频道管理private String jsonStr;ArrayList<ChannelBean> list;@Nullable@Overridepublic View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {View view = View.inflate(getActivity(), R.layout.bfrag, null);Button button = view.findViewById(R.id.btn);button.setOnClickListener(new View.OnClickListener() {@Overridepublic void onClick(View view) {if (list==null){list = new ArrayList<>();list.add(new ChannelBean("热点",true));list.add(new ChannelBean("军事",true));list.add(new ChannelBean("八卦",true));list.add(new ChannelBean("游戏",true));list.add(new ChannelBean("宠物",true));list.add(new ChannelBean("汽车",false));list.add(new ChannelBean("热卖",false));list.add(new ChannelBean("外卖",false));list.add(new ChannelBean("太阳花",false));list.add(new ChannelBean("九三",false));list.add(new ChannelBean("八嘎",false));list.add(new ChannelBean("色昂",false));ChannelActivity.startChannelActivity((AppCompatActivity) getActivity(),list);Gson gson = new Gson();String jsonArray = gson.toJson(list);Intent intent = new Intent(getActivity(), ChannelActivity.class);intent.putExtra(RESULT_JSON_KEY, jsonArray);startActivityForResult(intent, REQUEST_CODE);}else if(jsonStr!=null){ChannelActivity.startChannelActivity((AppCompatActivity) getActivity(),jsonStr);}}});return view;}@Overridepublic void onActivityResult(int requestCode, int resultCode, Intent data) {super.onActivityResult(requestCode, resultCode, data);if (requestCode== REQUEST_CODE&&resultCode==ChannelActivity.RESULT_CODE) {jsonStr = data.getStringExtra(RESULT_JSON_KEY);}}}
ThredAcrtivity.java
public class ThredActivity extends AppCompatActivity{private ViewPager pager;public String urlString="/api/banner.php";private BannerAdapter adapter;@Overrideprotected void onCreate(@Nullable Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.thred);pager = findViewById(R.id.pager);ImageView imageView = findViewById(R.id.image);TextView textView = findViewById(R.id.textview);Intent intent = getIntent();String img = intent.getStringExtra("img");String title = intent.getStringExtra("title");textView.setText(title);ImageLoader.getInstance().displayImage(img,imageView);adapter = new BannerAdapter(getLayoutInflater());pager.setAdapter(adapter);initData(urlString);}private void initData(String urlString) {new AsyncTask<String, Void, ArrayList<BannerBean.DataBean>>() {@Overrideprotected ArrayList<BannerBean.DataBean> doInBackground(String... strings) {String datas = Http.requestData(strings[0]);BannerBean bannerBean = new Gson().fromJson(datas, BannerBean.class);if (bannerBean!=null){return (ArrayList<BannerBean.DataBean>) bannerBean.getData();}return null;}@Overrideprotected void onPostExecute(ArrayList<BannerBean.DataBean> dataBeans) {super.onPostExecute(dataBeans);adapter.setDatas(dataBeans);}}.execute(urlString);}}
BaseActivity
public abstract class BaseActivity extends AppCompatActivity{ //基类@Overrideprotected void onCreate(@Nullable Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(getContentView());findView();initData();}protected abstract int getContentView();protected abstract void findView();protected abstract void initData();}
App.java
public class App extends Application{ //网络加载图片@Overridepublic void onCreate() {super.onCreate();//BitmapDisplayer bitmapDisplayer = new CircleBitmapDisplayer();DisplayImageOptions options = new DisplayImageOptions.Builder()//.displayer(bitmapDisplayer).showImageOnLoading(R.drawable.ic_launcher).showImageForEmptyUri(R.drawable.ic_launcher).cacheInMemory(true).build();ImageLoaderConfiguration configuration = new ImageLoaderConfiguration.Builder(this).defaultDisplayImageOptions(options).build();ImageLoader.getInstance().init(configuration);}}
Http.java
public class Http { //网络请求字符串数据，外部类，被内部调用public static String requestData(String string){String getgson=null;try {URL url = new URL(string);HttpURLConnection urlConnection = (HttpURLConnection) url.openConnection();urlConnection.setRequestMethod("GET");urlConnection.setConnectTimeout(50*1000);urlConnection.setReadTimeout(50*1000);int responseCode = urlConnection.getResponseCode();if(responseCode==200){String gsonString = stream2String(urlConnection.getInputStream());getgson=gsonString;}} catch (MalformedURLException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();}return getgson;}private static String stream2String(InputStream inputStream) {StringBuilder stringBuilder = new StringBuilder();BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(inputStream));try {for (String tmp = bufferedReader.readLine(); tmp!=null; tmp=bufferedReader.readLine()) {stringBuilder.append(tmp);}} catch (IOException e) {e.printStackTrace();} finally {try {bufferedReader.close();} catch (IOException e) {e.printStackTrace();}}return stringBuilder.toString();}}
SqliteHelper.java
public class SqliteHelper extends SQLiteOpenHelper{ //数据库建表public SqliteHelper(Context context) {super(context,"user.db", null, 1);}@Overridepublic void onCreate(SQLiteDatabase db) {db.execSQL("create table users(id integer primary key autoincrement,name text,age text)");db.execSQL("insert into users (name,age) values(?,?)",new String[]{"frq","frq"});}@Overridepublic void onUpgrade(SQLiteDatabase sqLiteDatabase, int i, int i1) {}}
Dao.java
public class Dao { //操作数据库private final SqliteHelper sqliteHelper;SQLiteDatabase database;public Dao(Context context) {sqliteHelper = new SqliteHelper(context);database = sqliteHelper.getReadableDatabase();}public ArrayList<Sqlite> query() {Cursor cursor = database.rawQuery("select * from users", null);ArrayList<Sqlite> list = new ArrayList<>();while (cursor.moveToNext()){String name = cursor.getString(cursor.getColumnIndex("name"));String age = cursor.getString(cursor.getColumnIndex("age"));Sqlite sqlite = new Sqlite(name, age);list.add(sqlite);}return list;}public void insert(String aa, String aaa) {database.execSQL("insert into users(name,age) values(?,?)",new Object[]{aa,aaa});}}
BannerAdapter
public class BannerAdapter extends PagerAdapter{ //加载viewpager图片private LayoutInflater layoutInflater;ArrayList<BannerBean.DataBean> list;public BannerAdapter(LayoutInflater layoutInflater) {this.layoutInflater = layoutInflater;list = new ArrayList<>();}public void setDatas(ArrayList<BannerBean.DataBean> datas) {list.addAll(datas);notifyDataSetChanged();}@Overridepublic int getCount() {return list.size();}@Overridepublic boolean isViewFromObject(@NonNull View view, @NonNull Object object) {return view==object;}@NonNull@Overridepublic Object instantiateItem(@NonNull ViewGroup container, int position) {ImageView imageView = new ImageView(layoutInflater.getContext());imageView.setScaleType(ImageView.ScaleType.FIT_XY);ImageLoader.getInstance().displayImage(list.get(position).getImg(),imageView);container.addView(imageView);return imageView;}@Overridepublic void destroyItem(@NonNull ViewGroup container, int position, @NonNull Object object) {container.removeView((View) object);}}
MyBaseAdapter.java
public class MyBaseAdapter extends BaseAdapter{ //加载xlv的adapterprivate LayoutInflater layoutInflater;private final ArrayList<ResponseBean.DataBean> list;public MyBaseAdapter(LayoutInflater layoutInflater) {this.layoutInflater = layoutInflater;list = new ArrayList<>();}public ArrayList<ResponseBean.DataBean> getList() {return list;}public void setDatas(ArrayList<ResponseBean.DataBean> datas) {list.clear();list.addAll(datas);notifyDataSetChanged();}public void addDatas(ArrayList<ResponseBean.DataBean> bs) {list.addAll(bs);notifyDataSetChanged();}/*public static final int ONE=0;public static final int TWO=1;public static final int THREE=2;@Overridepublic int getItemViewType(int position) {ResponseBean.DataBean dataBean = list.get(position);if (!TextUtils.isEmpty(dataBean.getThumbnail_pic_s03())){return THREE;}else if (!TextUtils.isEmpty(dataBean.getThumbnail_pic_s02())){return TWO;}else {return ONE;}}@Overridepublic int getViewTypeCount() {return 3;}*/@Overridepublic int getCount() {return list.size();}@Overridepublic Object getItem(int i) {return list.get(i);}@Overridepublic long getItemId(int i) {return i;}@Overridepublic View getView(int i, View view, ViewGroup viewGroup) {if (getItemViewType(i)==ONE){ViewHolder viewHolder=null;if (view==null){viewHolder = new ViewHolder();view = layoutInflater.inflate(R.layout.item, viewGroup, false);viewHolder.textView = view.findViewById(R.id.text);viewHolder.imageView = view.findViewById(R.id.img);view.setTag(viewHolder);}else {viewHolder = (ViewHolder) view.getTag();}viewHolder.textView.setText(list.get(i).getTitle());ImageLoader.getInstance().displayImage(list.get(i).getThumbnail_pic_s(),viewHolder.imageView);}else if (getItemViewType(i)==TWO){ViewHolder2 viewHolder2=null;if (view==null){viewHolder2 = new ViewHolder2();view = layoutInflater.inflate(R.layout.item2, viewGroup, false);viewHolder2.textView = view.findViewById(R.id.text);viewHolder2.imageView = view.findViewById(R.id.img);viewHolder2.imageView2 = view.findViewById(R.id.img2);view.setTag(viewHolder2);}else {viewHolder2 = (ViewHolder2) view.getTag();}viewHolder2.textView.setText(list.get(i).getTitle());ImageLoader.getInstance().displayImage(list.get(i).getThumbnail_pic_s(),viewHolder2.imageView);ImageLoader.getInstance().displayImage(list.get(i).getThumbnail_pic_s02(),viewHolder2.imageView2);}else {ViewHolder3 viewHolder3=null;if (view==null){viewHolder3 = new ViewHolder3();view = layoutInflater.inflate(R.layout.item3, viewGroup, false);viewHolder3.textView = view.findViewById(R.id.text);viewHolder3.imageView = view.findViewById(R.id.img);viewHolder3.imageView2 = view.findViewById(R.id.img2);viewHolder3.imageView3 = view.findViewById(R.id.img3);view.setTag(viewHolder3);}else {viewHolder3 = (ViewHolder3) view.getTag();}viewHolder3.textView.setText(list.get(i).getTitle());ImageLoader.getInstance().displayImage(list.get(i).getThumbnail_pic_s(),viewHolder3.imageView);ImageLoader.getInstance().displayImage(list.get(i).getThumbnail_pic_s02(),viewHolder3.imageView2);ImageLoader.getInstance().displayImage(list.get(i).getThumbnail_pic_s03(),viewHolder3.imageView3);}return view;}class ViewHolder{private TextView textView;private ImageView imageView;}class ViewHolder2{private TextView textView;private ImageView imageView;private ImageView imageView2;}class ViewHolder3{private TextView textView;private ImageView imageView;private ImageView imageView2;private ImageView imageView3;}}
