安卓开发新闻客户端

安卓开发新闻客户端

1.项目介绍

1.开发工具及语言

语言：java

工具：Android Studio

开发日期：2019.12

安卓开发的新闻客户端开发可以有效的锻炼安卓的编程能力，对于综合能力有着很大的帮助。
新闻客户端的开发涉及了安卓开发中界布局的设计、菜单的制作以及导航框架的使用
安卓网络编程中数据获取、适配器的使用等各种的的有效的技能，是一种极为有效的锻炼
。

2.使用技术框架

1.APP总体底部的4个Fragment切换和在每个Fragment中的ViewPage切换, 采用的是LuckyJayce/ViewPagerInd
icator的开源框架

2.当然,若是初次接触，建议学习SlidingTabsBasic,Google官方教程，简洁实
现SlidingTab。

3.新闻列表采用纵向RecyclerView，其中暂时划分为3种类型。

public static enum ITEM_TYPE {
ITEM_TYPE_BANNER,
ITEM_TYPE_IMAGE,
ITEM_TYPE_TEXT
}

4.采用的方法是通过Android自带的android.text.Html类解析Html和html下标签的图像。 核心代码如下：

URLImageParser p = new URLImageParser(content, this);
Spanned htmlSpan = Html.fromHtml(body, p, null);
content.setText(htmlSpan);

2.项目展示

1.运行截图

进入界面展示

主要内容展示

2.部分代码展示

1.主函数MainActivity.java

package com.hhxplaying.neteasedemo.netease.activity;

import android.annotation.TargetApi;
import android.content.Intent;
import android.os.Build;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.view.WindowManager;
import android.widget.ImageView;
import android.widget.TextView;

import com.hhxplaying.neteasedemo.netease.R;
import com.hhxplaying.neteasedemo.netease.SettingActivity;
import com.hhxplaying.neteasedemo.netease.fragment.FirstLayerFragment;
import com.readystatesoftware.systembartint.SystemBarTintManager;
import com.shizhefei.view.indicator.Indicator;
import com.shizhefei.view.indicator.IndicatorViewPager;
import com.shizhefei.view.viewpager.SViewPager;

public class MainActivity extends AppCompatActivity {
    private IndicatorViewPager indicatorViewPager;
    private SystemBarTintManager tintManager;
    //private MenuItem action_settings;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        initWindow();
        setContentView(R.layout.activity_main);
        //MenuItem action_settings = (MenuItem)findViewById(R.id.action_settings);


        SViewPager viewPager = (SViewPager) findViewById(R.id.tabmain_viewPager);
        Indicator indicator = (Indicator) findViewById(R.id.tabmain_indicator);
        indicatorViewPager = new IndicatorViewPager(indicator, viewPager);
        indicatorViewPager.setAdapter(new MyAdapter(getSupportFragmentManager()));
        // 禁止viewpager的滑动事件
        viewPager.setCanScroll(false);
        // 设置viewpager保留界面不重新加载的页面数量
        viewPager.setOffscreenPageLimit(4);

        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
        setSupportActionBar(toolbar);
        toolbar.setTitle(R.string.index_name);
        setSupportActionBar(toolbar);
        invalidateOptionsMenu();


    }


    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.menu_main, menu);
        return true;
    }

    @TargetApi(19)
    private void initWindow() {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
            getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
            getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION);
            tintManager = new SystemBarTintManager(this);
            tintManager.setStatusBarTintColor(getResources().getColor(R.color.tab_top_background));
            tintManager.setStatusBarTintEnabled(true);
        }
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();

        //noinspection SimplifiableIfStatement
        if (id == R.id.action_settings) {
            Intent intent = new Intent(MainActivity.this, SettingActivity.class);
            startActivity(intent);
            //return true;
        }
        if (id == R.id.action_wholeday) {
              //tabIcons = {R.style.AppTheme_Base};
            //return true;
        }

        return super.onOptionsItemSelected(item);
    }

    private class MyAdapter extends IndicatorViewPager.IndicatorFragmentPagerAdapter {
        private String[] tabNames = {"新闻", "阅读", "热点", "政要"};//, "我", R.drawable.maintab_5_selector
        private int[] tabIcons = {R.drawable.maintab_1_selector, R.drawable.maintab_2_selector, R.drawable.maintab_3_selector,
                R.drawable.maintab_4_selector, R.drawable.maintab_5_selector};
        private LayoutInflater inflater;

        public MyAdapter(FragmentManager fragmentManager) {
            super(fragmentManager);
            inflater = LayoutInflater.from(getApplicationContext());
        }

        @Override
        public int getCount() {
            return tabNames.length;
        }

        @Override
        public View getViewForTab(int position, View convertView, ViewGroup container) {
            if (convertView == null) {
                convertView = inflater.inflate(R.layout.tab_main, container, false);
            }
            TextView textView = (TextView) convertView.findViewById(R.id.tv_tab_content);
            textView.setText(tabNames[position]);

            ImageView image = (ImageView) convertView.findViewById(R.id.iv_tab_img);
            image.setImageResource(tabIcons[position]);
            return convertView;
        }

        @Override
        public Fragment getFragmentForPage(int position) {
            Fragment mainFragment;
            mainFragment = new FirstLayerFragment();

            Bundle bundle = new Bundle();
            bundle.putString(FirstLayerFragment.INTENT_STRING_TABNAME, tabNames[position]);
            bundle.putInt(FirstLayerFragment.INTENT_INT_INDEX, position);
            mainFragment.setArguments(bundle);

            return mainFragment;
        }
    }
}