我尝试使用带有联系人ID和图片uri的函数更新ContactsContract中的一张照片,但它似乎不起作用(并且我的函数返回true
)。
我真的不明白,因为代码看起来不错。
联系人已经有照片时,它似乎正在工作...
这是我的功能:
boolean updatePhoto(String idStr, String uri){
if (uri != null) {
ArrayList<ContentProviderOperation> ops = new ArrayList<>();
File imgFile = new File(uri.replace("file://", ""));
if (imgFile.exists()) {
Bitmap myBitmap = BitmapFactory.decodeFile(imgFile.getAbsolutePath());
ByteArrayOutputStream stream = new ByteArrayOutputStream();
myBitmap.compress(Bitmap.CompressFormat.JPEG, 75, stream);
ops.add(ContentProviderOperation.newUpdate(ContactsContract.Data.CONTENT_URI)
.withSelection(ContactsContract.Data.CONTACT_ID + " = ?" + " AND " + ContactsContract.Data.MIMETYPE + "=?",
new String[]{idStr, ContactsContract.CommonDataKinds.Photo.CONTENT_ITEM_TYPE})
.withValue(ContactsContract.Data.MIMETYPE, ContactsContract.CommonDataKinds.Photo.CONTENT_ITEM_TYPE)
.withValue(ContactsContract.CommonDataKinds.Photo.PHOTO, stream.toByteArray())
.build());
try {
getContentResolver().applyBatch(ContactsContract.AUTHORITY, ops);
} catch(Exception e) {
e.printStackTrace();
return false;
}
}
}
return true;
}
最佳答案
仅当联系人已经有照片(因为您使用ContentProviderOperation.newUpdate
)时,您的代码才有效;如果联系人没有照片,则需要使用ContentProviderOperation.newInsert
。
您需要先查询联系人以查看是否有照片,然后更新/插入新照片:
private boolean hasPhoto(long contactId) {
Uri uri = ContentUris.withAppendedId(Contacts.CONTENT_URI, contactId);
InputStream input = Contacts.openContactPhotoInputStream(getContentResolver(), uri);
if (input == null) {
return false;
}
Bitmap photo = BitmapFactory.decodeStream(input);
return (photo != null);
}
private long getRawId(long contactId) {
String selection = RawContacts.CONTACT_ID + "='" + contactId + "'";
Cursor cur = contentResolver.query(RawContacts.CONTENT_URI, new String[]{ RawContacts._ID }, selection, null, null);
try {
if (cur.moveToNext()) {
return cur.getLong(0);
}
} finally {
cur.close();
}
return 0;
}
private boolean updatePhoto(long contactId, String uri) {
if (uri == null) {
// do nothing?
return false;
}
ContentProviderOperation.Builder builder;
if (hasPhoto(contactId)) {
builder = ContentProviderOperation.newUpdate(Data.CONTENT_URI);
builder.withSelection(Data.CONTACT_ID + " = ?" + " AND " + Data.MIMETYPE + "=?",
new String[]{ String.valueOf(contactId), Photo.CONTENT_ITEM_TYPE});
} else {
long rawId = getRawId(contactId);
builder = ContentProviderOperation.newInsert(Data.CONTENT_URI);
builder.withValue(Data.RAW_CONTACT_ID, rawId);
}
builder.withValue(Data.MIMETYPE, Photo.CONTENT_ITEM_TYPE);
builder.withValue(Data.IS_SUPER_PRIMARY, 1);
builder.withValue(Data.IS_PRIMARY, 1);
byte[] photo = getPhotoAsByteArray(uri); // to simplify the answer's code
builder.withValue(Photo.PHOTO, photo);
try {
ArrayList<ContentProviderOperation> ops = new ArrayList<>();
ops.add(builder.build());
getContentResolver().applyBatch(ContactsContract.AUTHORITY, ops);
} catch(Exception e) {
e.printStackTrace();
return false;
}
return true;
}
关于android - 在ContactsContract中更新照片的功能,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/47657912/