ZhihuStoryActivity.java

package name.caiyao.microreader.ui.activity;

import android.content.Intent;
import android.os.Build;
import android.os.Bundle;
import android.support.design.widget.CollapsingToolbarLayout;
import android.support.design.widget.FloatingActionButton;
import android.support.design.widget.Snackbar;
import android.support.v4.widget.NestedScrollView;
import android.support.v7.app.ActionBar;
import android.support.v7.widget.Toolbar;
import android.text.TextUtils;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.webkit.WebChromeClient;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.widget.ImageView;

import java.lang.reflect.InvocationTargetException;

import butterknife.BindView;
import butterknife.ButterKnife;
import name.caiyao.microreader.R;
import name.caiyao.microreader.bean.guokr.GuokrArticle;
import name.caiyao.microreader.bean.zhihu.ZhihuStory;
import name.caiyao.microreader.config.Config;
import name.caiyao.microreader.presenter.IZhihuStoryPresenter;
import name.caiyao.microreader.presenter.impl.ZhihuStoryPresenterImpl;
import name.caiyao.microreader.ui.iView.IZhihuStory;
import name.caiyao.microreader.utils.ImageLoader;
import name.caiyao.microreader.utils.WebUtil;

public class ZhihuStoryActivity extends BaseActivity implements IZhihuStory {

    public static final int TYPE_ZHIHU = 1;
    public static final int TYPE_GUOKR = 2;

    @BindView(R.id.toolbar)
    Toolbar toolbar;
    @BindView(R.id.wv_zhihu)
    WebView wvZhihu;
    @BindView(R.id.iv_zhihu_story)
    ImageView ivZhihuStory;
    @BindView(R.id.ctl)
    CollapsingToolbarLayout ctl;
    @BindView(R.id.nest)
    NestedScrollView nest;
    @BindView(R.id.fabButton)
    FloatingActionButton fabButton;

    private int type;
    private String id;
    private String title;
    private String url;
    private IZhihuStoryPresenter mIZhihuStoryPresenter;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_zhihu_story);
        ButterKnife.bind(this);

        initData();
        initView();
        getData();
    }

    private void initData() {
        type = getIntent().getIntExtra("type", 0);
        id = getIntent().getStringExtra("id");
        title = getIntent().getStringExtra("title");
        mIZhihuStoryPresenter = new ZhihuStoryPresenterImpl(this);
    }

    private void initView() {
        toolbar.setTitle(title);
        setSupportActionBar(toolbar);
        boolean isKitKat = Build.VERSION.SDK_INT == Build.VERSION_CODES.KITKAT;
        int vibrantColor = setToolBar(fabButton, toolbar, false, isKitKat, null);
        toolbar.setNavigationOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                ZhihuStoryActivity.this.onBackPressed();
            }
        });
        ActionBar actionBar = getSupportActionBar();
        if (actionBar != null) {
            actionBar.setDisplayHomeAsUpEnabled(true);
        }
        fabButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                nest.smoothScrollTo(0, 0);
            }
        });

        WebSettings settings = wvZhihu.getSettings();
        settings.setJavaScriptEnabled(true);
        settings.setCacheMode(WebSettings.LOAD_CACHE_ELSE_NETWORK);
        settings.setLoadWithOverviewMode(true);
        settings.setBuiltInZoomControls(true);
        //settings.setUseWideViewPort(true);造成文字太小
        settings.setDomStorageEnabled(true);
        settings.setDatabaseEnabled(true);
        settings.setAppCachePath(getCacheDir().getAbsolutePath() + "/webViewCache");
        settings.setAppCacheEnabled(true);
        settings.setLayoutAlgorithm(WebSettings.LayoutAlgorithm.SINGLE_COLUMN);
        wvZhihu.setWebChromeClient(new WebChromeClient());
        ctl.setContentScrimColor(vibrantColor);
        ctl.setBackgroundColor(vibrantColor);
        ctl.setStatusBarScrimColor(vibrantColor);
    }

    private void getData() {
        if (type == TYPE_ZHIHU) {
            mIZhihuStoryPresenter.getZhihuStory(id);
        } else if (type == TYPE_GUOKR) {
            mIZhihuStoryPresenter.getGuokrArticle(id);
        }
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.menu_share, menu);
        menu.findItem(R.id.action_share).setShowAsAction(MenuItem.SHOW_AS_ACTION_ALWAYS);
        menu.removeItem(R.id.action_use_browser);
        return super.onCreateOptionsMenu(menu);
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        switch (item.getItemId()) {
            case R.id.action_share:
                Intent shareIntent = new Intent();
                shareIntent.setAction(Intent.ACTION_SEND);
                shareIntent.putExtra(Intent.EXTRA_TEXT, title + " " + url + getString(R.string.share_tail));
                shareIntent.setType("text/plain");
                //设置分享列表的标题，并且每次都显示分享列表
                startActivity(Intent.createChooser(shareIntent, getString(R.string.share)));
                break;
        }
        return super.onOptionsItemSelected(item);
    }

    @Override
    protected void onResume() {
        super.onResume();
        try {
            wvZhihu.getClass().getMethod("onResume").invoke(wvZhihu, (Object[]) null);
        } catch (IllegalAccessException e) {
            e.printStackTrace();
        } catch (InvocationTargetException e) {
            e.printStackTrace();
        } catch (NoSuchMethodException e) {
            e.printStackTrace();
        }
    }

    @Override
    protected void onPause() {
        super.onPause();
        try {
            wvZhihu.getClass().getMethod("onPause").invoke(wvZhihu, (Object[]) null);
        } catch (IllegalAccessException e) {
            e.printStackTrace();
        } catch (InvocationTargetException e) {
            e.printStackTrace();
        } catch (NoSuchMethodException e) {
            e.printStackTrace();
        }
    }

    @Override
    protected void onDestroy() {
        //webview内存泄露
        if (wvZhihu != null) {
            ((ViewGroup) wvZhihu.getParent()).removeView(wvZhihu);
            wvZhihu.destroy();
            wvZhihu = null;
        }
        mIZhihuStoryPresenter.unsubcrible();
        super.onDestroy();
    }

    @Override
    public void showError(String error) {
        Snackbar.make(wvZhihu, getString(R.string.common_loading_error) + error, Snackbar.LENGTH_INDEFINITE).setAction(getString(R.string.comon_retry), new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                getData();
            }
        }).show();
    }

    @Override
    public void showZhihuStory(ZhihuStory zhihuStory) {
        ImageLoader.loadImage(ZhihuStoryActivity.this,zhihuStory.getImage(),ivZhihuStory);
        url = zhihuStory.getShareUrl();
        if (TextUtils.isEmpty(zhihuStory.getBody())) {
            wvZhihu.loadUrl(zhihuStory.getShareUrl());
        } else {
            String data = WebUtil.buildHtmlWithCss(zhihuStory.getBody(), zhihuStory.getCss(), Config.isNight);
            wvZhihu.loadDataWithBaseURL(WebUtil.BASE_URL, data, WebUtil.MIME_TYPE, WebUtil.ENCODING, WebUtil.FAIL_URL);
        }
    }

    @Override
    public void showGuokrArticle(GuokrArticle guokrArticle) {
        ImageLoader.loadImage(ZhihuStoryActivity.this,guokrArticle.getResult().getSmallImage(),ivZhihuStory);
        url = guokrArticle.getResult().getUrl();
        if (TextUtils.isEmpty(guokrArticle.getResult().getContent())) {
            wvZhihu.loadUrl(guokrArticle.getResult().getUrl());
        } else {
            //解决图片显示问题,视频显示问题
            String data = WebUtil.buildHtmlForIt(guokrArticle.getResult().getContent().replaceAll("(style.*?\")>", "").replaceAll("width=\"(.*?)\"", "100%").replaceAll("height=\"(.*?)\"", "auto"), Config.isNight);
            wvZhihu.loadDataWithBaseURL(WebUtil.BASE_URL, data, WebUtil.MIME_TYPE, WebUtil.ENCODING, WebUtil.FAIL_URL);
        }
    }
}