Android实现pdf在线预览或本地预览的方法

<span style="font-size:18px;">WebView urlWebView = (WebView)findViewById(R.id.containWebView);
	urlWebView.setWebViewClient(new AppWebViewClients());
	urlWebView.getSettings().setJavaScriptEnabled(true);
	urlWebView.getSettings().setUseWideViewPort(true);
	urlWebView.loadUrl("http://docs.google.com/gview?embedded=true&url="
					+ "YOUR_DOC_URL_HERE"); 
	public class AppWebViewClients extends WebViewClient {
		@Override
		public boolean shouldOverrideUrlLoading(WebView view, String url) {
			// TODO Auto-generated method stub
			view.loadUrl(url);
			return true;
		}
		@Override
		public void onPageFinished(WebView view, String url) {
			// TODO Auto-generated method stub
			super.onPageFinished(view, url);
		}
	}</span>

<span style="font-size:18px;">引入：compile 'com.joanzapata.pdfview:android-pdfview:1.0.4@aar'</span>

<span style="font-size:18px;"> <com.joanzapata.pdfview.PDFView 
  android:id="@+id/pdfview" 
  android:layout_width="match_parent" 
  android:layout_height="match_parent"/></span> 

<span style="font-size:18px;">   pdfView = (PDFView) findViewById(R.id.pdfview); 
    //加载assets下的文件 
  pdfView.fromAsset("sample.pdf") 
    //.fromFile("")指定加载某个文件 
    //指定加载某一页 
    /*.pages(0, 1,2, 3, 4, 5)*/ 
    .defaultPage(1) 
    .showMinimap(false) 
    .enableSwipe(true) 
    /* .onDraw(onDraw) 
    .onLoad(onLoadCompleteListener) 
    .onPageChange(onPageChangeListener)*/ 
    .load();</span> 

<span style="font-size:18px;">Intent intent = new Intent(Intent.ACTION_VIEW); 
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); 
//officeFile：本地文档；type：文档MIMEType类型，可以使用文件格式后缀 
intent.setDataAndType(Uri.fromFile(officeFile), type); 
if (intent.resolveActivity(getPackageManager())!=null){ 
 startActivity(intent); 
}</span>