1.引入GifView.jar，编写xml文件（为了让loading居中，不得不尝试了很多方法，结果就添加了好几个嵌套的layout才实现，如果有更简洁的方法，请博友告知）：

  2. <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
  3. xmlns:tools="http://schemas.android.com/tools"
  4. android:layout_width="match_parent"
  5. android:layout_height="match_parent"
  6. android:background="@color/white"
  7. tools:context="com.doorknocker.MainActivity"
  8. android:orientation="vertical" >
  11. <LinearLayout
  12. android:id="@ id/ll_web_view_container"
  13. android:layout_width="match_parent"
  14. android:layout_height="match_parent" >
  17. <RelativeLayout
  18. android:id="@ id/rl_loading"
  19. android:layout_width="match_parent"
  20. android:layout_height="match_parent" >
  21. <LinearLayout
  22. android:layout_width="match_parent"
  23. android:layout_height="wrap_content"
  24. android:orientation="vertical"
  25. android:gravity="center_horizontal"
  26. android:layout_centerVertical="true" >
  27. <com.ant.liao.GifView android:id="@ id/gv_loading"
  28. android:layout_height="wrap_content"
  29. android:layout_width="wrap_content"
  30. android:enabled="false" />
  31. </LinearLayout>
  32. </RelativeLayout>
  34. <WebView
  35. android:id="@ id/wv_right_content"
  36. android:layout_width="match_parent"
  37. android:layout_height="match_parent" />
  38. </LinearLayout>
  41. </LinearLayout>
  1. 2.代码：
  2. View rootView = inflater.inflate(R.layout.fragment_right, null);
  3. wv_right_content = (WebView) rootView.findViewById(R.id.wv_right_content);
  4. gv_loading = (GifView) rootView.findViewById(R.id.gv_loading);
  5. rl_loading = (RelativeLayout) rootView.findViewById(R.id.rl_loading);
  6. gv_loading.setGifImage(R.drawable.loading_gif);
  7. // 得到底部菜单栏高度
  8. bottomTabHeight = UIUtils.getBottomTabHeight(mActivity);
  9. // WebView的高度是屏幕整体高度减去状态栏高度，再减去顶部菜单条高度，再减去底部Tab高度
  10. LinearLayout mLayout = (LinearLayout) rootView.findViewById(R.id.ll_web_view_container);
  11. Layoutparams params = new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
  12. params.height = UIUtils.getScreenHeight(mActivity) - UIUtils.getStatusBarHeight() - bottomTabHeight;
  13. mLayout.setLayoutParams(params);
  14. WebSettings webSettings = wv_right_content.getSettings();
  15. webSettings.setJavaScriptEnabled(true);
  16. webSettings.setSupportZoom(true);
  17. webSettings.setBuiltInZoomControls(true);
  18. //设置Web视图
  19. wv_right_content.setWebViewClient(new WebViewClient() {
  20. @Override
  21. public boolean shouldOverrideUrlLoading(WebView view, String url) {
  22. view.loadUrl(url);
  23. // 记住当前的URL
  24. currentRightUrl = url;
  25. // 由当前的WebView处理跳转
  26. return true;
  27. }
  29. @Override
  30. public void onPageStarted(WebView view, String url, Bitmap favicon) {
  31. rl_loading.setVisibility(View.VISIBLE);
  32. wv_right_content.setVisibility(View.GONE);
  33. }
  35. @Override
  36. public void onPageFinished(WebView view, String url) {
  37. super.onPageFinished(view, url);
  38. rl_loading.setVisibility(View.GONE);
  39. wv_right_content.setVisibility(View.VISIBLE);
  40. }
  41. });
  43. return rootView;

webview提示加载进度（WebView在加载完成之前显示loading图标）(1)

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