我创建了一个应用程序,我允许用户从图库中选择图像或从相机拍摄图片并将该图像上传到网络server.This代码工作正常。现在在其他屏幕我从网络服务器下载图像并将其存储在SD卡中。如果从图库中选择了图像,图像正在图像视图中显示,但是如果图像从图像中被捕获,图像没有显示在图像中图像视图即使该文件存在于SD卡位图图像不在图像视图中显示
代码以显示图像,并从服务器下载
private static class DownloadImage extends AsyncTask<String, Void, String> {
@Override
protected void onPreExecute() {
super.onPreExecute();
}
@Override
protected String doInBackground(String... params) {
String filePath = downloadFile("my web service");
return filePath;
}
@Override
protected void onPostExecute(String result) {
super.onPostExecute(result);
if (result.equalsIgnoreCase("")) {
ivProfilePic.setImageDrawable(context.getResources().getDrawable(R.drawable.user_default));
progressBar.setVisibility(View.GONE);
} else {
profilePicPath = result;
Bitmap bitmapProfilePic = BitmapFactory.decodeFile(profilePicPath);
ivProfilePic.setImageBitmap(bitmapProfilePic);
progressBar.setVisibility(View.GONE);
}
}
}
public static String downloadFile(String url, String dest_file_path) {
try {
File dest_file = new File(dest_file_path);
URL u = new URL(url);
URLConnection conn = u.openConnection();
int contentLength = conn.getContentLength();
DataInputStream stream = new DataInputStream(u.openStream());
byte[] buffer = new byte[contentLength];
stream.readFully(buffer);
stream.close();
DataOutputStream fos = new DataOutputStream(new FileOutputStream(dest_file));
fos.write(buffer);
fos.flush();
fos.close();
} catch (FileNotFoundException e) {
return "";
} catch (IOException e) {
return "";
}
return dest_file_path;
}
我能看到的代码从拍照相机并将其显示到图像视图? – Shrey 2015-02-23 12:11:07
程序崩溃吗? – mes 2015-02-23 12:29:08