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);
}
}