我在这里做错了什么?我正在尝试调用以获取全尺寸图片的意图:
拍照意图
private void takePictureIntent(int request) {
final Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
if (takePictureIntent.resolveActivity(activity.getPackageManager()) != null) {
File file = null;
try {
file = createImageFile(request);
} catch (Exception e) {
showErrorDialog(getString(R.string.error), getString(R.string.error_saving_picture));
Log.e(TAG, "Error while creating image file.");
}
if (file != null) {
takePictureIntent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(file));
startActivityForResult(takePictureIntent, request);
} else {
Log.e(TAG, "Error while creating image file.");
showErrorDialog(getString(R.string.error), getString(R.string.error_saving_picture));
}
}
}
创建图像文件
private File createImageFile(final int request) {
final File storageDir = new File(activity.getExternalFilesDir(Environment.DIRECTORY_PICTURES), getString(R.string.app_name));
if (!storageDir.exists()) {
if (!storageDir.mkdirs()) {
Log.e(TAG, "Cannot create parent folders.");
return null;
}
}
File file = null;
try {
file = File.createTempFile("test_", ".jpg", storageDir);
} catch (Exception e) {
Log.e(TAG, "Error while creating temp file.");
}
fileProduct = file;
return file;
}
onActivityResult
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
if (resultCode == Activity.RESULT_OK && requestCode == REQUEST_IMAGE_PRODUCT) {
if (fileProduct == null ||!fileProduct.exists() ||fileProduct.length() == 0) {
showErrorDialog(getString(R.string.error), getString(R.string.error_taking_product_picture));
return;
}
}
有时(是的,有时)结果文件的长度为 0。我确定私有应用程序上下文中的文件夹存在并且图像文件也存在(长度> 0)。你能提供一些帮助吗?我在 Nexus 5X 上使用 6.0。