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新增 1.新增查看文章内的所有图片，左右滑动可切换 2.图片可放大缩小
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68 changes: 68 additions & 0 deletions
68
app/src/main/java/com/zhongzilu/bit100/application/receiver/NetworkBroadcastReceiver.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,68 @@ | ||
| package com.zhongzilu.bit100.application.receiver; | ||
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| import android.content.BroadcastReceiver; | ||
| import android.content.Context; | ||
| import android.content.Intent; | ||
| import android.net.ConnectivityManager; | ||
| import android.net.NetworkInfo; | ||
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|
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| /** | ||
| * 监听网络状态变化的广播接收器 | ||
| * Created by zhongzilu on 2016-10-24. | ||
| */ | ||
| public class NetworkBroadcastReceiver extends BroadcastReceiver { | ||
| private static final String TAG = "NetworkBroadcastReceiver==>"; | ||
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| @Override | ||
| public void onReceive(Context context, Intent intent) { | ||
| //获取手机的连接服务管理器，这里是连接管理器类 | ||
| ConnectivityManager cm = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE); | ||
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| // if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) { | ||
| // Network[] states = cm.getAllNetworks(); | ||
| // | ||
| // if (states != null){ | ||
| // for (Network work : states){ | ||
| // NetworkInfo networkInfo = cm.getNetworkInfo(work); | ||
| // | ||
| // if (networkInfo.getType() == ConnectivityManager.TYPE_WIFI && | ||
| // networkInfo.getState().equals(NetworkInfo.State.CONNECTED )){ | ||
| // | ||
| // return; | ||
| // } | ||
| // } | ||
| // | ||
| // //wifi和数据流量都没有打开，提示没有可用网络，引导用户打开任意网络 | ||
| // } | ||
| // | ||
| // return; | ||
| // } | ||
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| NetworkInfo.State wifiState = cm.getNetworkInfo(ConnectivityManager.TYPE_WIFI).getState(); | ||
| NetworkInfo.State mobileState = cm.getNetworkInfo(ConnectivityManager.TYPE_MOBILE).getState(); | ||
| NetworkInfo.State mobile4G = cm.getNetworkInfo(ConnectivityManager.TYPE_WIMAX).getState(); | ||
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| if (wifiState == null && mobileState == null){ | ||
| //wifi和数据流量都没有打开，提示没有可用网络，引导用户打开任意网络 | ||
| return; | ||
| } | ||
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| if (NetworkInfo.State.CONNECTED == wifiState){ | ||
| //wifi连接可用，这时可以加载比较耗流量的内容，比如更高清的图片和视频等 | ||
| return; | ||
| } | ||
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| if (NetworkInfo.State.CONNECTED == mobile4G){ | ||
| //4G网络可用，这时可以加载比较耗流量的内容，同时也通过缓存机制和其他机制 | ||
| //优化网络请求频率以及数据加载以减少流量消耗 | ||
| return; | ||
| } | ||
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| if (NetworkInfo.State.CONNECTED == mobileState){ | ||
| //数据流量可用，这时避免加载比较耗流量的内容，同时，可以通过缓存机制和其他机制 | ||
| //优化网络请求频率以及数据加载以减少流量消耗 | ||
| // return; | ||
| } | ||
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| } | ||
| } |
176 changes: 176 additions & 0 deletions
176
app/src/main/java/com/zhongzilu/bit100/view/activity/GalleryActivity.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,176 @@ | ||
| package com.zhongzilu.bit100.view.activity; | ||
|
|
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| import android.content.Intent; | ||
| import android.os.Bundle; | ||
| import android.support.v4.app.Fragment; | ||
| import android.support.v4.app.FragmentManager; | ||
| import android.support.v4.app.FragmentPagerAdapter; | ||
| import android.support.v4.view.ViewPager; | ||
| import android.support.v7.app.AppCompatActivity; | ||
| import android.view.LayoutInflater; | ||
| import android.view.Menu; | ||
| import android.view.MenuItem; | ||
| import android.view.View; | ||
| import android.view.ViewGroup; | ||
|
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| import com.bumptech.glide.Glide; | ||
| import com.zhongzilu.bit100.R; | ||
| import com.zhongzilu.bit100.application.util.LogUtil; | ||
| import com.zhongzilu.bit100.widget.TouchImageView; | ||
|
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| /** | ||
| * 图片画廊，用于查看网页上的图片 | ||
| * Created by zhongzilu on 2016-09-16. | ||
| */ | ||
| public class GalleryActivity extends AppCompatActivity { | ||
| private static final String TAG = "GalleryActivity==>"; | ||
|
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| //Extra Tag | ||
| public static final String EXTRA_IMAGES_LIST = "images_list"; | ||
| public static final String EXTRA_CURRENT_IMAGE_POSITION = "image_position"; | ||
|
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| //Extra Value | ||
| private String[] mList; | ||
| private int mChosePosition; | ||
|
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| /** | ||
| * The {@link android.support.v4.view.PagerAdapter} that will provide | ||
| * fragments for each of the sections. We use a | ||
| * {@link FragmentPagerAdapter} derivative, which will keep every | ||
| * loaded fragment in memory. If this becomes too memory intensive, it | ||
| * may be best to switch to a | ||
| * {@link android.support.v4.app.FragmentStatePagerAdapter}. | ||
| */ | ||
| private SectionsPagerAdapter mSectionsPagerAdapter; | ||
|
|
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| /** | ||
| * The {@link ViewPager} that will host the section contents. | ||
| */ | ||
| private ViewPager mViewPager; | ||
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| @Override | ||
| protected void onCreate(Bundle savedInstanceState) { | ||
| super.onCreate(savedInstanceState); | ||
| setContentView(R.layout.activity_gallery); | ||
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| mViewPager = (ViewPager) findViewById(R.id.container); | ||
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| Intent intent = getIntent(); | ||
| if (intent != null){ | ||
| mList = intent.getStringArrayExtra(EXTRA_IMAGES_LIST); | ||
| mChosePosition = intent.getIntExtra(EXTRA_CURRENT_IMAGE_POSITION, 0); | ||
| } | ||
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| // 如果mList为空，则不再进行其他操作 | ||
| if (mList == null) { | ||
| LogUtil.d(TAG, "onCreate: mList is null"); | ||
| return; | ||
| } | ||
| // Create the adapter that will return a fragment for each of the three | ||
| // primary sections of the activity. | ||
| mSectionsPagerAdapter = new SectionsPagerAdapter(getSupportFragmentManager(), mList); | ||
| mViewPager.setOffscreenPageLimit(2); | ||
| // Set up the ViewPager with the sections adapter. | ||
| mViewPager.setAdapter(mSectionsPagerAdapter); | ||
| mViewPager.setCurrentItem(mChosePosition, true); | ||
| } | ||
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| @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_gallery, menu); | ||
| return true; | ||
| } | ||
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| @Override | ||
| public boolean onOptionsItemSelected(MenuItem item) { | ||
| switch (item.getItemId()){ | ||
| case R.id.action_settings: | ||
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| break; | ||
| } | ||
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| return super.onOptionsItemSelected(item); | ||
| } | ||
|
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| /** | ||
| * A placeholder fragment containing a simple view. | ||
| */ | ||
| public static class PlaceholderFragment extends Fragment { | ||
| private static final String TAG = "PlaceholderFragment==>"; | ||
| /** | ||
| * The fragment argument representing the section number for this | ||
| * fragment. | ||
| */ | ||
| private static final String ARG_IMAGE_URL = "image_url"; | ||
| private View contentView; | ||
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| public PlaceholderFragment() {} | ||
|
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| /** | ||
| * Returns a new instance of this fragment for the given section | ||
| * number. | ||
| */ | ||
| public static PlaceholderFragment newInstance(String url) { | ||
| PlaceholderFragment fragment = new PlaceholderFragment(); | ||
| Bundle args = new Bundle(); | ||
| args.putString(ARG_IMAGE_URL, url); | ||
| fragment.setArguments(args); | ||
| return fragment; | ||
| } | ||
|
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| @Override | ||
| public View onCreateView(LayoutInflater inflater, ViewGroup container, | ||
| Bundle savedInstanceState) { | ||
| if (contentView == null) | ||
| contentView = inflater.inflate(R.layout.fragment_gallery, container, false); | ||
| return contentView; | ||
| } | ||
|
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| @Override | ||
| public void onViewCreated(View view, Bundle savedInstanceState) { | ||
| super.onViewCreated(view, savedInstanceState); | ||
|
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| TouchImageView imageView = (TouchImageView) view.findViewById(R.id.img_touch_image); | ||
| String url = getArguments().getString(ARG_IMAGE_URL); | ||
| LogUtil.d(TAG, "onViewCreated: url==>" + url); | ||
| Glide.with(getContext()) | ||
| .load(url) | ||
| .placeholder(R.drawable.image_default) | ||
| .error(R.drawable.image_default) | ||
| .into(imageView); | ||
| } | ||
| } | ||
|
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| /** | ||
| * A {@link FragmentPagerAdapter} that returns a fragment corresponding to | ||
| * one of the sections/tabs/pages. | ||
| */ | ||
| public class SectionsPagerAdapter extends FragmentPagerAdapter { | ||
| private String[] imgSrc; | ||
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| public SectionsPagerAdapter(FragmentManager fm, String[] imgS) { | ||
| super(fm); | ||
| this.imgSrc = imgS; | ||
| } | ||
|
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| @Override | ||
| public Fragment getItem(int position) { | ||
| // getItem is called to instantiate the fragment for the given page. | ||
| // Return a PlaceholderFragment (defined as a static inner class below). | ||
| return PlaceholderFragment.newInstance(imgSrc[position]); | ||
| } | ||
|
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| @Override | ||
| public int getCount() { | ||
| // Show imgSrc length total pages. | ||
| return imgSrc.length; | ||
| } | ||
|
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| @Override | ||
| public CharSequence getPageTitle(int position) { | ||
| return ""; | ||
| } | ||
| } | ||
| } |
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