I'm building a Custom Control (a Gallery Picture Picker)
basically trying to re-make a this : Microsoft.Maui.Media.MediaPicker.PickPhotoAsync()
but i didn't find anyway to retrieve user pictures on MAUI ..
on Xamarin.Android i used this code :
var uriExternal = MediaStore.Images.Media.ExternalContentUri;
string[] projection = { (MediaStore.Images.Media.InterfaceConsts.Id),
(MediaStore.Images.Media.InterfaceConsts.DateAdded),
(MediaStore.Images.Media.InterfaceConsts.RelativePath) };
var cursor = Android.App.Application.Context.ContentResolver.Query(uriExternal, projection, null, null, MediaStore.Images.Media.InterfaceConsts.DateAdded);
if (cursor != null) {
int columnIndexID = cursor.GetColumnIndexOrThrow(MediaStore.Images.Media.InterfaceConsts.Id);
int RelativePathID = cursor.GetColumnIndexOrThrow(MediaStore.Images.Media.InterfaceConsts.RelativePath);
while (cursor.MoveToNext()) {
long imageId = cursor.GetLong(columnIndexID);
string rPath = cursor.GetString(RelativePathID);
//Get the Picture's URI
Android.Net.Uri uriImage = Android.Net.Uri.WithAppendedPath(uriExternal, "" + imageId);
...
}
}
with this Code, given the required permissions, i could get the external path of all pictures of an Android phone to then use them in my PicturePicking custom control ..
==> how can i do this in Microsoft MAUI !! (targeting Android & IOS)
(just to be clear, of course i know that i could just use MediaPicker's [PickPhotoAsync] function, but i clearly don't want that, it's not an option)
Thanks in advance for any help !
So after 2 days of searching.. i've came to the conclusion that the only way to do this is by using Plateform Specific Code ..
(i tryed it successfully)
Related
I am creating a music player app and I am querying songs with the following code.
if(musicResolver != null){
musicCursor = musicResolver.query(musicUri,null,null,null,null);
}
if(musicCursor != null && musicCursor.moveToFirst()) {
int idCol = musicCursor.getColumnIndex(MediaStore.Audio.Media._ID);
int titleCol = musicCursor.getColumnIndex(MediaStore.Audio.Media.TITLE);
int artistCol = musicCursor.getColumnIndex(MediaStore.Audio.Media.ARTIST);
do {
long id = musicCursor.getLong(idCol);
String title = musicCursor.getString(titleCol);
String artist = musicCursor.getString(artistCol);
MusicService.songsSet.add(new Song(id,title,artist));
} while (musicCursor.moveToNext());
}
The problem is along with songs I am getting WhatsApp audio files. Is there a way to filter them.
There can be several ways by which you can filter out WhatsApp Audio Records. I am listing the most basic and easiest approach which you can use:
1. Ignoring the Audio folder of WhatsApp (WhatsApp Audio): Get the real path from the URI and ignore all files having path (WhatsApp/WhatsApp Audio/*).
2. Ignore Files with the names starting with AUD-000000-WA0000.*: This is again a pattern matching (Regex) to ignore all files having name matching the above pattern. WhatsApp Audio files have a specific file name pattern. So you can easily ignore them too.
Both these methods should get you to filter out WhatsApp Audio files and leave you with other sound files only.
You Can you below 2 lines, it is working for me, it is avoided to take Whatsapp Audio while querying to the content manager for the audio file.
where.append(" AND " + MediaStore.Audio.Media.TITLE + " NOT LIKE 'AUD%'");
where.append(" AND " + MediaStore.Audio.Media.TITLE + " NOT LIKE 'PTT%'");
I am making my first app, and there I have photos I want the user could make them bigger with a "zoom effect".
I have been searching about it in the web and I have found I must use a webview which can do that automatically.
But the image doesn't appear. I only can watch his route as a text: "file:///storage/sdcard0/postals/4249.jpg"
And it doesn't matter if I include "file://" or not.
Here it is the code. I hope anyone of you could help me.
"Ivpostal" is the name of my webview. And "adrecafoto" is an string with the route of the image in the galery of the phone:
**uriruta=Uri.parse(adrecafoto);
Cursor c = getContentResolver().query(uriruta,null,null,null,null);
c.moveToNext();
String filePath = "";
String[] column = { MediaStore.Images.Media.DATA };
int columnIndex = c.getColumnIndex(column[0]);
if (c.moveToFirst()) {
filePath = c.getString(columnIndex);
}
c.close();
String rutafoto= "file://"+filePath;
ivpostal.loadData(rutafoto, "text/html","utf-8");**
i am trying to retrieve alarm information from content provider using following code
final String tag_alarm = "tag_alarm";
Uri uri = Uri.parse("content://com.android.deskclock/alarm")
Cursor c = getContentResolver().query(uri, null, null, null, null);
Log.i(tag_alarm, "no of records are" + c.getCount());
Log.i(tag_alarm, "no of columns are" + c.getColumnCount());
if (c != null) {
String names[] = c.getColumnNames();
for (String temp : names) {
System.out.println(temp);
}
if (c.moveToFirst()) {
do {
for (int j = 0; j < c.getColumnCount(); j++) {
Log.i(tag_alarm, c.getColumnName(j);
+ " which has value " + c.getString(j));
}
} while (c.moveToNext());
}
}
it is giving me error permission denial i copied this code from curious answer from query Get alarm infomation
in the Nguyen's comment he pointed a solution "If i embed this code in Android source code and run image file, it can pass "permission denied" error and retrieve alarm information. Anyway, thanks your tip :) " how to embed a code in android source code and run image file ?? please explain i always create a project in eclipse and then code and run it as run application.please explain this trick
In my opinion, because of each manufacturer had implemented their own Clock App,
So default AlarmClockApp of Android will be replaced depend on each manufacturer, that makes your code can not be run successful if Android Os had been modified by Manufacturers.
So I think we can not handle all the devices in this case, instead of that, we should handler it by manufacturer of devices.
With Samsung devices, it's ClockPackage and in androidManifest :
<provider
android:name=".alarm.AlarmProvider"
android:authorities="com.samsung.sec.android.clockpackage"
android:exported="true"
android:readPermission="com.sec.android.app.clockpackage.permission.READ_ALARM"
android:writePermission="com.sec.android.app.clockpackage.permission.WRITE_ALARM" >
</provider>
So we can read data of alarm in Samsung devices by :
add permission in manifest:
<uses-permission android:name="com.sec.android.app.clockpackage.permission.READ_ALARM" />
then get Uri by below :
Uri uri = Uri.parse("content://com.samsung.sec.android.clockpackage/alarm");
Use Uri :
Cursor c = getContentResolver().query(uri, null, null, null, null);
if (c == null) { // that mean devices is not belong to Samsung manufacturer,
// we should use an other uri (don't for get to add permission)
AlarmLog.w("Can not read cursor");
}
AlarmLog.i(tag_alarm, "no of records are " + c.getCount());
AlarmLog.i(tag_alarm, "no of columns are " + c.getColumnCount());
if (c != null) {
String names[] = c.getColumnNames();
for (String temp : names) {
AlarmLog.d(tag_alarm, temp);
}
if (c.moveToFirst()) {
do {
for (int j = 0; j < c.getColumnCount(); j++) {
AlarmLog.i(tag_alarm, c.getColumnName(j)
+ " which has value " + c.getString(j));
}
} while (c.moveToNext());
}
}
Hope it's helpful and receive code for others manufactures.
Look at the definition of the content provider in AndroidManifest.xml
<provider android:name="AlarmProvider"
android:authorities="com.android.deskclock"
android:exported="false" />
The exported is false, which means a 3rd-party app cannot access it. Permission denial as a result.
how to embed a code in android source code and run image file
It means you modify the Android source(Provided by google). I don't think it's useful in your case.
You can do that in a rooted device, by directly modify the contents in sqlite database. I don't think there is a solution to work on all existing Android platforms.
In general, sqlite database files are under /data/data/app-package-name/databases/database-name, so in this example, it should be /data/data/com.android.deskclock/databases/com.android.deskclock or something similar. You can pull the file out by adb pull and open it using SqliteExplorer to check whether it is what you want.
For how to modify this db file, check Using your own SQLite database in Android applications
As said there's no way to do this without root, but you can monitor when the next alarm is and when the value changes with the following value:
Settings.System.getUriFor(Settings.System.NEXT_ALARM_FORMATTED).toString()
This will give you a string with the next alarm.
I want to get all the browser history records from different browsers in android mobile phone ?(Maybe as you know, there are usually more than one browser apps in a phone ).Is there anyone has done this successfully and give me a hint ? Example code is preferred.Any help will be helpful.. Thanks a lot in advance ! :)
Just look at this. I used it in my code and I am getting browser history through it(Default Browser).
String[] proj = new String[] { Browser.BookmarkColumns.TITLE, Browser.BookmarkColumns.URL };
String selection = Browser.BookmarkColumns.BOOKMARK + " = 0"; // 0 = history, 1 = bookmark
mCursor = this.managedQuery(Browser.BOOKMARKS_URI, proj, selection, null, null);
this.startManagingCursor(mCursor);
mCursor.moveToFirst();
String title = "";
String url = "";
if (mCursor.moveToFirst() && mCursor.getCount() > 0) {
while (mCursor.isAfterLast() == false && cont) {
title = mCursor.getString(mCursor.getColumnIndex(Browser.BookmarkColumns.TITLE));
url = mCursor.getString(mCursor.getColumnIndex(Browser.BookmarkColumns.URL));
// Do something with title and url
mCursor.moveToNext();
}
}
Hope this helps you.
Limitations :
Browser.BOOKMARKS_URI will, at most, work for the open source Browser app that is part of the Android Open Source Project. Device manufacturers are welcome to replace that app with something else that will not be recording its history, bookmarks, or anything else in that ContentProvider. Similarly, users are allowed to download third-party browsers, which may not be storing things in that ContentProvider.
I have some requirement where I want to get using INTENT, what url is entered in the Android Browser and to display it in my application.
For your kind notice I have already checked the whole stackoverflow and have not got any relevant answer.
Please help me if anybody can. Please dont vote down if you don't understand my question.
Thanks
you can only access the browsing history but you cannot directly access the URL. In order to access the history, you need to add the persmission com.android.browser.permission.READ_HISTORY_BOOKMARKS to execute the following code for fetching the history.
The code given above is very correct. You can use that. In case of any problem you can ask me again, then I will tell you some other means to achieve the same.
First do with this code.
Thanks
I think you can access the browsing history but you cannot directly access the URL. In order to access the history, you need to add the persmission com.android.browser.permission.READ_HISTORY_BOOKMARKS to execute the following code for fetching the history.
Cursor webLinksCursor = getContentResolver().query(Browser.BOOKMARKS_URI, Browser.HISTORY_PROJECTION, null, null, Browser.BookmarkColumns.DATE + " DESC");
int row_count = webLinksCursor.getCount();
int title_column_index = webLinksCursor.getColumnIndexOrThrow(Browser.BookmarkColumns.TITLE);
int url_column_index = webLinksCursor.getColumnIndexOrThrow(Browser.BookmarkColumns.URL);
if ((title_column_index > -1) && (url_column_index > -1) && (row_count > 0))
{
webLinksCursor.moveToFirst();
while (webLinksCursor.isAfterLast() == false)
{
if (webLinksCursor.getInt(Browser.HISTORY_PROJECTION_BOOKMARK_INDEX) != 1)
{
if (!webLinksCursor.isNull(url_column_index))
{
Log.i("History" , "Last page browsed " + webLinksCursor.getString(url_column_index));
break;
}
}
webLinksCursor.moveToNext();
}
}
webLinksCursor.close();
HISTORY_PROJECTION_BOOKMARK_INDEX is used for distinguishing among the bookmarks.
Hope this helps.