Android仿微信公众号文章页面加载进度条的实现方法-创新互联

这篇文章将为大家详细讲解有关Android仿微信公众号文章页面加载进度条的实现方法，小编觉得挺实用的，因此分享给大家做个参考，希望大家阅读完这篇文章后可以有所收获。

详细实现步骤如下 ：

1、自定义一个ProgressWebView 继续 Webview

@SuppressWarnings("deprecation")
public class ProgressWebView extends WebView {

 private ProgressBar progressbar;

 public ProgressWebView(Context context) {
 super(context);
 init(context);
 }

 private void init(Context context) {
 progressbar = new ProgressBar(context, null,
  android.R.attr.progressBarStyleHorizontal);
 progressbar.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT,
  6, 0, 0));
 progressbar.setProgressDrawable(this.getResources().getDrawable(
  R.drawable.btn_progress_webview));
 addView(progressbar);
 setWebChromeClient(new WebChromeClient());
 }

 public ProgressWebView(Context context, AttributeSet attrs) {
 super(context, attrs);
 init(context);
 }

 public class WebChromeClient extends android.webkit.WebChromeClient {
 @Override
 public void onProgressChanged(WebView view, int newProgress) {
  if (newProgress == 100) {
  progressbar.setVisibility(GONE);
  } else {
  if (progressbar.getVisibility() == GONE)
   progressbar.setVisibility(VISIBLE);
  progressbar.setProgress(newProgress);
  }
  super.onProgressChanged(view, newProgress);
 }

 }

 @Override
 protected void onScrollChanged(int l, int t, int oldl, int oldt) {
 LayoutParams lp = (LayoutParams) progressbar.getLayoutParams();
 lp.x = l;
 lp.y = t;
 progressbar.setLayoutParams(lp);
 super.onScrollChanged(l, t, oldl, oldt);
 }
}