WebActivity.java

package com.smartalk.gank.ui.activity;

import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.support.v7.widget.Toolbar;
import android.view.KeyEvent;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.webkit.WebView;
import android.widget.LinearLayout;

import com.daimajia.numberprogressbar.NumberProgressBar;
import com.smartalk.gank.PanConfig;
import com.smartalk.gank.R;
import com.smartalk.gank.model.entity.Gank;
import com.smartalk.gank.presenter.WebViewPresenter;
import com.smartalk.gank.ui.base.ToolBarActivity;
import com.smartalk.gank.utils.TipsUtil;
import com.smartalk.gank.view.IWebView;

import butterknife.Bind;

/**
 * webView not destroy yet?
 */
public class WebActivity extends ToolBarActivity<WebViewPresenter> implements IWebView {


  private Gank gank;
  WebViewPresenter presenter;
  LinearLayout contentView;

  @Bind(R.id.toolbar)
  Toolbar toolbar;
  @Bind(R.id.web_view)
  WebView webView;
  @Bind(R.id.progressbar)
  NumberProgressBar progressbar;

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

  }

  @Override
  protected int provideContentViewId() {
    return R.layout.activity_web;
  }

  @Override
  protected void initPresenter() {
    presenter = new WebViewPresenter(this, this);
    presenter.init();
  }

  public static void loadWebViewActivity(Context from, Gank gank) {
    Intent intent = new Intent(from, WebActivity.class);
    intent.putExtra(PanConfig.GANK, gank);
    from.startActivity(intent);
  }

  @Override
  public void showProgressBar(int progress) {
    if (progressbar == null) return;
    progressbar.setProgress(progress);
    if (progress == 100) {
      progressbar.setVisibility(View.GONE);
    } else {
      progressbar.setVisibility(View.VISIBLE);
    }
  }

  @Override
  public void setWebTitle(String title) {
    setTitle(title);
  }

  @Override
  public void openFailed() {
    TipsUtil.showSnackTip(webView, getString(R.string.open_url_failed));
  }


  @Override
  public void init() {
    gank = (Gank) getIntent().getSerializableExtra(PanConfig.GANK);
    setTitle(gank.desc);
    presenter.setWebViewSettings(webView, gank.url);
    contentView = (LinearLayout) findViewById(R.id.web_content);
  }


  @Override
  public boolean onKeyDown(int keyCode, KeyEvent event) {
    if (event.getAction() == KeyEvent.ACTION_DOWN) {
      switch (keyCode) {
        case KeyEvent.KEYCODE_BACK:
          if (webView.canGoBack()) {
            webView.goBack();
          } else {
            finish();
          }
          return true;
      }
    }
    return super.onKeyDown(keyCode, event);
  }


  @Override
  public boolean onCreateOptionsMenu(Menu menu) {
    getMenuInflater().inflate(R.menu.menu_web, menu);
    return true;
  }

  @Override
  public boolean onOptionsItemSelected(MenuItem item) {
    switch (item.getItemId()) {
      case R.id.action_refresh:
        presenter.refresh(webView);
        break;
      case R.id.action_copy_url:
        presenter.copyUrl(webView.getUrl());
        break;
      case R.id.action_open_in_browser:
        presenter.openInBrowser(webView.getUrl());
        break;
      case R.id.action_share_gank:
        presenter.moreOperation(gank);
        break;
    }
    return super.onOptionsItemSelected(item);
  }

  @Override
  protected void onResume() {
    if (webView != null) webView.onResume();
    super.onResume();
  }

  @Override
  protected void onPause() {
    if (webView != null) webView.onPause();
    super.onPause();
  }

  @Override
  protected void onDestroy() {
    super.onDestroy();
    if (webView != null) {
      contentView.removeView(webView);
      webView.removeAllViews();
      webView.destroy();
      webView = null;
    }
    presenter.release();
  }
}