我的意图是,完成后,将图像保存到/ sdcard / Aperture。虽然图像确实保存,但一旦保存就不会显示图像。可能是什么问题呢?我尝试在我的On Activity Result中使用扫描广播,但这会导致崩溃,并且不会扫描图像。
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == SETTINGS_REQUEST && resultCode == Activity.RESULT_OK) {
MediaFragment content = (MediaFragment) getFragmentManager().findFragmentById(com.marlonjones.aperture.R.id.content_frame);
if (content != null) content.reload();
reloadNavDrawerAlbums();
}
if (requestCode == NEW_PICTURE) {
// return from file upload
if (resultCode == Activity.RESULT_OK) {
Uri uri = null;
if (data != null) {
uri = data.getData();
}
if (uri == null && mCameraFileName != null) {
uri = Uri.fromFile(new File(mCameraFileName));
}
}
}
}
final private int REQUEST_CODE_ASK_PERMISSIONS = 123;
int currentapiVersion = android.os.Build.VERSION.SDK_INT;
public void camera(MenuItem menu) {
if (android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
int hasCameraPermission = checkSelfPermission(Manifest.permission.CAMERA);
if (hasCameraPermission != PackageManager.PERMISSION_GRANTED) {
requestPermissions(new String[]{Manifest.permission.CAMERA},
REQUEST_CODE_ASK_PERMISSIONS);
return;
}
Intent intent = new Intent();
intent.setAction(MediaStore.ACTION_IMAGE_CAPTURE);
Date date = new Date();
DateFormat df = new SimpleDateFormat("-mm-ss");
String newPicFile = "PH" + df.format(date)+".jpg";
String outPath = "/sdcard/Aperture/" + newPicFile;
File outFile = new File(outPath);
mCameraFileName = outFile.toString();
Uri outuri = Uri.fromFile(outFile);
intent.putExtra(MediaStore.EXTRA_OUTPUT, outuri);
startActivityForResult(intent, NEW_PICTURE);
}
else{
Intent intent = new Intent();
intent.setAction(MediaStore.ACTION_IMAGE_CAPTURE);
Date date = new Date();
DateFormat df = new SimpleDateFormat("-mm-ss");
String newPicFile = "PH" + df.format(date) + ".jpg";
String outPath = "/sdcard/Aperture/" + newPicFile;
File outFile = new File(outPath);
mCameraFileName = outFile.toString();
Uri outuri = Uri.fromFile(outFile);
intent.putExtra(MediaStore.EXTRA_OUTPUT, outuri);
startActivityForResult(intent, NEW_PICTURE);}
}
答案 0 :(得分:2)
Impression在我认为的某些地方使用了MediaScannerConnection。这是使用扫描仪意图的更现代版本。它还会告诉您何时扫描完成并为您提供新URI(如果文件已从媒体数据库中删除,则为null)。
MediaScannerConnection.scanFile(this,
new String[] { filePath }, null,
new MediaScannerConnection.OnScanCompletedListener() {
@Override
public void onScanCompleted(String path, Uri uri) {
Log.i("ExternalStorage", "Scanned " + path + ":");
Log.i("ExternalStorage", "-> uri=" + uri);
}
});
扫描完成后,您需要重新加载媒体和相册。