我做了一个基本活动，用于所有活动共有的导航目的。尽管它工作正常。我想在标题上设置图像，询问是从画廊，照相机还是通过Facebook拍摄。
从Facebook获取图像正在运行，但问题是如果我从警报对话框中选择图像，则没有任何反应，并且单击点击适用于列表而不是单击图像。
这是我的代码：
private void selectImage() {
AlertDialog.Builder builder = new AlertDialog.Builder( BaseActivity.this);
builder.setTitle("Choose Image Source");
profilepic.setVisibility(View.GONE);
builder.setItems(new CharSequence[]{"Take a Photo",
"Choose from Gallery", "Cancel"},
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
switch (which) {
case 0:
Intent intent1 = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
intent1.putExtra(MediaStore.EXTRA_OUTPUT, setImageUri());
startActivityForResult(intent1, CAPTURE_IMAGE);
break;
case 1:
// GET IMAGE FROM THE GALLERY
Intent intent = new Intent();
intent.setType("image/*");
intent.setAction(Intent.ACTION_GET_CONTENT);
startActivityForResult( Intent.createChooser(intent, ""),PICK_IMAGE);
break;
case 2:
dialog.dismiss();
default:
break;
}
}
});
builder.show();
}
public Uri setImageUri() {
File file = new File(Environment.getExternalStorageDirectory(), "image" + new Date().getTime() + ".png");
Uri imgUri = Uri.fromFile(file);
this.imgPath = file.getAbsolutePath();
return imgUri;
}
public String getImagePath() {
return imgPath;
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (resultCode != Activity.RESULT_CANCELED) {
if (requestCode == PICK_IMAGE) {
selectedImagePath = getAbsolutePath(data.getData());
System.out.println("path" + selectedImagePath);
viewImage.setImageBitmap(decodeFile(selectedImagePath));
} else if (requestCode == CAPTURE_IMAGE) {
selectedImagePath = getImagePath();
System.out.println("path" + selectedImagePath);
viewImage.setImageBitmap(decodeFile(selectedImagePath));
} else {
super.onActivityResult(requestCode, resultCode, data);
}
}
}
public Bitmap decodeFile(String path) {
try {
// Decode image size
BitmapFactory.Options o = new BitmapFactory.Options();
o.inJustDecodeBounds = true;
BitmapFactory.decodeFile(path, o);
// The new size we want to scale to
final int REQUIRED_SIZE = 70;
// Find the correct scale value. It should be the power of
// 2.
int scale = 1;
while (o.outWidth / scale / 2 >= REQUIRED_SIZE
&& o.outHeight / scale / 2 >= REQUIRED_SIZE)
scale *= 2;
// Decode with inSampleSize
BitmapFactory.Options o2 = new BitmapFactory.Options();
o2.inSampleSize = scale;
return BitmapFactory.decodeFile(path, o2);
} catch (Throwable e) {
e.printStackTrace();
}
return null;
}
public String getAbsolutePath(Uri uri) {
String[] projection = { MediaStore.MediaColumns.DATA };
Cursor cursor = managedQuery(uri, projection, null, null, null);
if (cursor != null) {
int column_index = cursor.getColumnIndexOrThrow(MediaStore.MediaColumns.DATA);
cursor.moveToFirst();
return cursor.getString(column_index);
} else
return null;
}
答案 0 :(得分：0)
试试这样..
public void selectImage() {
final String[] items = new String[]{"Camera", "Gallery"};
final Integer[] icons = new Integer[]{R.drawable.ic_camera, R.drawable.ic_gallery};
ListAdapter adapter = new ArrayAdapterWithIcon(getActivity(), items, icons);
new AlertDialog.Builder(getActivity()).setTitle("Select Picture")
.setAdapter(adapter, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int item) {
if (items[item].equals("Camera")) {
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(intent, REQUEST_CAMERA);
} else if (items[item].equals("Gallery")) {
if (Build.VERSION.SDK_INT <= 19) {
Intent intent = new Intent();
intent.setType("image/*");
intent.setAction(Intent.ACTION_GET_CONTENT);
intent.addCategory(Intent.CATEGORY_OPENABLE);
startActivityForResult(Intent.createChooser(intent, "Select Picture"), PICK_IMAGE);
} else if (Build.VERSION.SDK_INT > 19) {
Intent intent = new Intent(Intent.ACTION_PICK, android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
startActivityForResult(Intent.createChooser(intent, "Select Picture"), PICK_IMAGE);
}
}
}
}).show();
}
// get result after selecting image from Gallery
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == PICK_IMAGE && resultCode == getActivity().RESULT_OK && null != data) {
Uri selectedImageUri = data.getData();
String selectedImagePath = getRealPathFromURIForGallery(selectedImageUri);
decodeFile(selectedImagePath);
} else if (requestCode == REQUEST_CAMERA && resultCode == getActivity().RESULT_OK && null != data) {
Bitmap photo = (Bitmap) data.getExtras().get("data");
profileImage.setImageBitmap(photo);
// CALL THIS METHOD TO GET THE URI FROM THE BITMAP
Uri tempUri = getImageUri(getActivity().getApplicationContext(), photo);
// CALL THIS METHOD TO GET THE ACTUAL PATH
File finalFile = new File(getRealPathFromURI(tempUri));
decodeFile(finalFile.toString());
}
}
public String getRealPathFromURIForGallery(Uri uri) {
if (uri == null) {
return null;
}
String[] projection = {MediaStore.Images.Media.DATA};
Cursor cursor = getActivity().getContentResolver().query(uri, projection, null, null, null);
if (cursor != null) {
int column_index = cursor
.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
cursor.moveToFirst();
return cursor.getString(column_index);
}
return uri.getPath();
}
public Uri getImageUri(Context inContext, Bitmap inImage) {
ByteArrayOutputStream bytes = new ByteArrayOutputStream();
inImage.compress(Bitmap.CompressFormat.JPEG, 100, bytes);
String path = MediaStore.Images.Media.insertImage(inContext.getContentResolver(), inImage, "Title", null);
return Uri.parse(path);
}
public String getRealPathFromURI(Uri uri) {
Cursor cursor = getActivity().getContentResolver().query(uri, null, null, null, null);
cursor.moveToFirst();
int idx = cursor.getColumnIndex(MediaStore.Images.ImageColumns.DATA);
return cursor.getString(idx);
}
// decode image
public void decodeFile(String filePath) {
// Decode image size
BitmapFactory.Options o = new BitmapFactory.Options();
o.inJustDecodeBounds = true;
BitmapFactory.decodeFile(filePath, o);
// The new size we want to scale to
final int REQUIRED_SIZE = 1024;
// Find the correct scale value. It should be the power of 2.
int width_tmp = o.outWidth, height_tmp = o.outHeight;
int scale = 1;
while (true) {
if (width_tmp < REQUIRED_SIZE && height_tmp < REQUIRED_SIZE)
break;
width_tmp /= 2;
height_tmp /= 2;
scale *= 2;
}
// Decode with inSampleSize
BitmapFactory.Options o2 = new BitmapFactory.Options();
o2.inSampleSize = scale;
bitmap = BitmapFactory.decodeFile(filePath, o2);
profileImage.setImageBitmap(bitmap);
}