我正在尝试从相机 Intent 获取图像。它运行良好,但仅限于我的设备(oreo/8.1.0)。我生成未签名的 apk 并尝试在其他设备(pie 和 lolipop)中运行,但它不起作用。
我搜索了 stackoverflow 和其他网站,但人们问了有关“lolipop 中的相机 Intent 问题”的问题。我的问题是不同的(我认为)。
我尝试检查 sdk 版本并应用不同的代码。 IE。根据 stackoverflow 的一个答案,我使用了此代码 Picasso.get().load(file).into(imageView);
而不是 Picasso.get().load(photoURI).into (imageView);
在 LOLIPOP 中,但它不起作用。
Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
if (takePictureIntent.resolveActivity(getPackageManager()) != null) {
File photoFile = null; // Create the File where the photo should go
try {
photoFile = createImageFile();
tempPhoto = photoFile;
} catch (IOException ex) {
// Error occurred while creating the File
}
// Continue only if the File was successfully created
if (photoFile != null) {
photoURI = FileProvider.getUriForFile(this,
"com.package.appname.fileprovider",
photoFile);
tempPhoto = photoFile;
takePictureIntent.putExtra(MediaStore.EXTRA_OUTPUT, photoURI);
startActivityForResult(takePictureIntent, REQUEST_TAKE_PHOTO);
}
}
createImageFile函数的代码:
private File createImageFile() throws IOException {
// Create an image file name
String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date());
String imageFileName = "JPEG_" + timeStamp + "_";
File storageDir = getExternalFilesDir(Environment.DIRECTORY_PICTURES);
File image = File.createTempFile(
imageFileName, /* prefix */
".jpg", /* suffix */
storageDir /* directory */
);
// Save a file: path for use with ACTION_VIEW intents
mCurrentPhotoPath = image.getAbsolutePath();
return image;
}
在这里接收结果
protected void onActivityResult(int requestCode, int resultCode, Intent intent) {
super.onActivityResult(requestCode, resultCode, intent);
try {
if (requestCode == REQUEST_TAKE_PHOTO && resultCode == RESULT_OK) {
File file = new File(mCurrentPhotoPath);
Picasso.get().load(file).into(imageView);
// Bitmap bitmap = MediaStore.Images.Media
// .getBitmap(this.getContentResolver(), Uri.fromFile(file));
// if (bitmap != null) {
// imageView.setImageBitmap(bitmap);
// }
} else if (requestCode == PICK_IMAGE_REQUEST && resultCode == RESULT_OK) {
File file = new File(mCurrentPhotoPath);
Bitmap bitmap = MediaStore.Images.Media.getBitmap(this.getContentResolver(), Uri.fromFile(file));
if (bitmap != null) {
imageView.setImageBitmap(bitmap);
}
}
} catch (Exception error) {
error.printStackTrace();
}
}
任何人都可以帮助我在所有 sdk 版本中给出准确的结果吗?请帮我。提前致谢。
最佳答案
试试这个:
protected void onActivityResult(int requestCode, int resultCode, Intent intent) {
super.onActivityResult(requestCode, resultCode, intent);
try {
if (requestCode == REQUEST_TAKE_PHOTO && resultCode == RESULT_OK) {
Uri uri = intent.getData(); // you need take uri of image
imageView.setImageURI(uri); // you don't need of picasso to load local images
// Picasso.get().load(file).into(imageView);
// Bitmap bitmap = MediaStore.Images.Media
// .getBitmap(this.getContentResolver(), Uri.fromFile(file));
// if (bitmap != null) {
// imageView.setImageBitmap(bitmap);
// }
} else if (requestCode == PICK_IMAGE_REQUEST && resultCode == RESULT_OK) {
File file = new File(mCurrentPhotoPath);
Bitmap bitmap = MediaStore.Images.Media.getBitmap(this.getContentResolver(), Uri.fromFile(file));
if (bitmap != null) {
imageView.setImageBitmap(bitmap);
}
}
} catch (Exception error) {
error.printStackTrace();
}
}
关于java - 在除我自己的设备(奥利奥)之外的其他设备中从相机 Intent 检索图片时出现问题,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/55883910/