选择的图像未显示在mainActivity中
为什么选择的图像没有显示在Claims.java ？ 我错过了什么吗？
mainfest.xml
camera_main.xml
Claims.java
公共类声明扩展Fragment {
ImageView viewImage; Button b; private String selectedImagePath; public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { super.onCreate(savedInstanceState); View claims = inflater.inflate(R.layout.camera_main, container, false); b = (Button) claims.findViewById(R.id.btnSelectPhoto); viewImage=(ImageView)claims.findViewById(R.id.imageView); b.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { selectImage(); } }); return claims; } private void selectImage() { final CharSequence[] options = {"Take Photo", "Choose from Gallery", "Cancel"}; AlertDialog.Builder builder = new AlertDialog.Builder(Claims.this.getActivity()); builder.setTitle("Add Photo!"); builder.setItems(options, new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int item) { if (options[item].equals("Take Photo")) { Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE); File f = new File(android.os.Environment.getExternalStorageDirectory(), "temp.jpg"); intent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(f)); String state = Environment.getExternalStorageState(); if (state.equals(Environment.MEDIA_MOUNTED)) { Toast.makeText(getActivity().getApplicationContext(), " mounted ", Toast.LENGTH_LONG).show(); } startActivityForResult(intent, 1); } else if (options[item].equals("Choose from Gallery")) { Intent intent = new Intent(Intent.ACTION_PICK, android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI); startActivityForResult(intent, 2); } else if (options[item].equals("Cancel")) { dialog.dismiss(); } } }); builder.show(); } @Override public void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); if (resultCode == Activity.RESULT_OK) { if (requestCode == 1) { File f = new File(Environment.getExternalStorageDirectory().toString()); if(f != null){ Toast.makeText(getActivity().getApplicationContext(), " not null ", Toast.LENGTH_LONG).show(); } for (File temp : f.listFiles()) { if (temp.getName().equals("temp.jpg")) { f = temp; break; } } try { Bitmap bitmap; BitmapFactory.Options bitmapOptions = new BitmapFactory.Options(); bitmap = BitmapFactory.decodeFile(f.getAbsolutePath(), bitmapOptions); viewImage.setImageBitmap(bitmap); String path = android.os.Environment .getExternalStorageDirectory() + File.separator + "Phoenix" + File.separator + "default"; f.delete(); OutputStream outFile = null; File file = new File(path, String.valueOf(System.currentTimeMillis()) + ".jpg"); try { outFile = new FileOutputStream(file); bitmap.compress(Bitmap.CompressFormat.JPEG, 85, outFile); outFile.flush(); outFile.close(); } catch (FileNotFoundException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } catch (Exception e) { e.printStackTrace(); } } catch (Exception e) { e.printStackTrace(); } } else if (requestCode == 2) { Uri selectedImage = data.getData(); String[] filePath = { MediaStore.Images.Media.DATA }; Cursor c = getActivity().getContentResolver().query(selectedImage, filePath, null, null, null); c.moveToFirst(); int columnIndex = c.getColumnIndex(filePath[0]); String picturePath = c.getString(columnIndex); if(picturePath.startsWith("/")) picturePath = picturePath.substring(1); c.close(); Bitmap thumbnail = (BitmapFactory.decodeFile(picturePath)); Drawable d = new BitmapDrawable(thumbnail); viewImage.setBackground(d); } } }
当我选择图像时， imageviewe上没有显示任何内容。 但如果我从相机捕捉图像，图像可以显示…为什么？
10-22 14:28:11.128 7451-7451/com.example.project.project E/ViewRootImpl﹕ sendUserActionEvent() mView == null 10-22 14:28:15.228 7451-7451/com.example.project.project E/BitmapFactory﹕ Unable to decode stream: java.io.FileNotFoundException: /https:/lh3.googleusercontent.com/-ZiYOXTFTKqQ/URcxPqvEtTI/AAAAAAAAAJw/GN893VrnxGw/I/PANO_20130210_133321.jpg: open failed: ENOENT (No such file or directory)
这是什么意思？ 我怎样才能解决这个问题？ 我怎么知道android studio的sdk版本？ 请帮帮我….谢谢
正如我在你的logcat中看到的，你的路径是错误的。
开头有一个额外的“/”。
你可以试试：
if(picturePath.startsWith("/")) picturePath = picturePath.substring(1);
我之前遇到过这种情况，我就是这样做的
else if (requestCode == 2) { Uri selectedImage = data.getData(); viewImage.setImageURI(selectedImage);
它的工作原理！ 希望它也能帮助你…祝你好运
嗨，Iam也面临同样的问题，我确实喜欢这个……
String[] filePathColumn = {MediaStore.Images.Media.DATA}; Cursor cursor = getActivity().getContentResolver().query(data.getData(), filePathColumn, null, null, null); cursor.moveToFirst(); int columnIndex = cursor.getColumnIndex(filePathColumn[0]); String imgDecodableString = cursor.getString(columnIndex); cursor.close(); viewImage.setImageBitmap(BitmapFactory .decodeFile(imgDecodableString));
你只需用上面提到的代码替换if if（requestCode == 2）中的代码
希望这能解决你的问题