Error trying to share image in assets with third party chat app

Question

I am trying to get the StreamProvider to share images in my assets/stamps folder, but am doing something wrong. Sorry for asking such a trivial question. Using the demo as an example this is where I am at.

manifest file

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
package="com.example.np161.stamp2" >

<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW" />
<uses-permission android:name="android.permission.GET_TASKS" />
<uses-permission android:name="android.permission.GET_TOP_ACTIVITY_INFO" />
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.WAKE_LOCK" />
<uses-permission android:name="android.permission.VIBRATE" />
<uses-permission android:name="android.permission.GET_ACCOUNTS" />
<uses-permission
    android:name="android.permission.PACKAGE_USAGE_STATS"
    tools:ignore="ProtectedPermissions" />

<application
    android:allowBackup="true"
    android:icon="@drawable/icon"
    android:label="Stickers 2"
    android:supportsRtl="true"
    android:theme="@android:style/Theme.Holo.NoActionBar.Fullscreen" >
    <activity
        android:name=".MainActivity"
        android:label="Stickers 2"
        android:screenOrientation="portrait"
        android:theme="@style/AppTheme.NoActionBar" >
    </activity>
    <activity
        android:name=".chatHeadPreviewActivity"
        android:launchMode="singleInstance"
        android:screenOrientation="portrait"
        android:theme="@style/Theme.Transparent" />
    <activity
        android:name=".HomeScreen"
        android:launchMode="singleInstance"
        android:configChanges="orientation|keyboardHidden|screenSize"
        android:label="Stickers 2"
        android:screenOrientation="portrait"
        android:theme="@style/FullscreenTheme" >
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />

            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>

    <service android:name=".ChatHeadService" />

    <activity
        android:name=".newActivity"
        android:screenOrientation="portrait" >
    </activity>
    <activity
        android:name=".Settings"
        android:launchMode="singleInstance"
        android:screenOrientation="portrait" >
    </activity>
    <activity
        android:name=".Language"
        android:screenOrientation="portrait"
        android:label="@string/title_activity_language" >
    </activity>
</application>

<provider
    android:name="com.commonsware.cwac.provider.StreamProvider"
    android:authorities="com.example.np161.stamp2"
    android:exported="false"
    android:grantUriPermissions="true">
    <meta-data
        android:name="com.commonsware.cwac.provider.STREAM_PROVIDER_PATHS"
        android:resource="@xml/paths"/>
</provider>


</manifest>

my paths.xml contains this

<paths xmlns:android="http://schemas.android.com/apk/res/android">
    <asset name="assets" path="stamps" />
</paths>

The activity where I am sending the image

assetManager = getResources().getAssets();

    try {
        images = getAssets().list("stamps");
        listImages = new ArrayList<String>(Arrays.asList(images));
    }catch(IOException e){

    }

I use this to populate my gridview and then set the onclick method

gridview.setOnItemClickListener(new AdapterView.OnItemClickListener() {
        public void onItemClick(AdapterView<?> parent, View v, int position, long id) {
            String path = "assets/" + listImages.get(position);

            Intent shareIntent = new Intent(Intent.ACTION_SEND);

            shareIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);

            shareIntent.putExtra(Intent.EXTRA_STREAM, getUri(path));

            shareIntent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);

            shareIntent.setType("image/png");

            shareIntent.setPackage(ChatHeadService.app);

            startActivity(Intent.createChooser(shareIntent, "Share with"));

modified getUri method

private static final Uri PROVIDER= Uri.parse("content://com.example.np161.stamp2");

private Uri getUri(String pathEnd) {
    String path=pathEnd;

    return(PROVIDER.buildUpon().path(path).build());
}

The error i seem to be getting is

02-24 10:01:53.280 17563-17610/? E/JHEAD: can't open '/image/png'
02-24 10:01:53.283 17563-17610/? E/JHEAD: can't open '/image/png'
02-24 10:01:53.326 17563-17610/? E/ImageFileManager: Image resize fail
02-24 10:01:53.422 17563-17609/? E/SQLiteLog: (1555) abort at 13 in [INSERT INTO sticker(package_id,sticker_id,order_num,image_width,image_height) VALUES (?,?,?,?,?)]: UNIQUE constraint failed: sticker.sticker_id

Thanks for taking the time to look at this. I am still relatively new to android programming

Answer 1

Assuming that you have something like app/src/main/assets/stamps/stp_003.png in your project, that looks fine.

More importantly, it suggests that "can't open '/image/png'" must be pulling from the MIME type. However, the leading slash on that seems like the other app is treating the MIME type as a path, which makes no sense.

You might try sharing with a couple of other apps, to see if they accept your Uri, but from the first three lines of that error, it would seem like the problem is on their side, and not in any way that you or I are likely to be able to fix.