Java 将字节数组转换为字符串[在webview上显示pdf]+;安卓
我使用以下代码在webview上加载pdf文件Java 将字节数组转换为字符串[在webview上显示pdf]+;安卓,java,android,string,bytearray,Java,Android,String,Bytearray,我使用以下代码在webview上加载pdf文件 try { imageByteArray =loadFile(Environment.getExternalStorageDirectory().getAbsolutePath()+"/sample.pdf"); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); }
try {
imageByteArray =loadFile(Environment.getExternalStorageDirectory().getAbsolutePath()+"/sample.pdf");
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
webview = (WebView)findViewById(R.id.webView1);
String image64 = Base64.encodeToString(imageByteArray, Base64.DEFAULT);
String imgTag = "<img src=\"data:image/jpeg;base64," + image64 + "\" />" ;
webview.getSettings().setBuiltInZoomControls(true);
webview.setInitialScale(30);
WebSettings webSettings = webview.getSettings();
webSettings.setUseWideViewPort(true);
webview.loadData(imgTag, "text/html", "utf-8");
试试看{
imageByteArray=loadFile(Environment.getExternalStorageDirectory().getAbsolutePath()+“/sample.pdf”);
}捕获(IOE异常){
//TODO自动生成的捕捉块
e、 printStackTrace();
}
webview=(webview)findViewById(R.id.webView1);
字符串image64=Base64.encodeToString(imageByteArray,Base64.DEFAULT);
字符串imgTag=“”;
webview.getSettings().setBuilTinZoomControl(true);
webview.setInitialScale(30);
WebSettings WebSettings=webview.getSettings();
webSettings.setUseWideViewPort(true);
loadData(imgTag,“text/html”,“utf-8”);
但是在将字节码转换为字符串时从内存异常中获取
问题:
1.如何将大字节代码加载到字符串类型2.或者我可以使用其他数据类型在webview中显示字节数组
看这行
”
我必须给字符串image64。或者有其他选择吗