分享应用自己的apk

AndroidManifest.xml

        <provider
            android:name="androidx.core.content.FileProvider"
            android:authorities="com.xxxx.fileprovider"
            android:exported="false"
            android:grantUriPermissions="true">
            <meta-data
                android:name="android.support.FILE_PROVIDER_PATHS"
                android:resource="@xml/file_paths" />
        </provider>

file_paths

<?xml version="1.0" encoding="utf-8"?>
<paths xmlns:android="http://schemas.android.com/apk/res/android">
    <root-path
        name="app"
        path=""/>
</paths>

Utils.java

    public static void shareApk(Context context) {
        ApplicationInfo app = context.getApplicationInfo();
        String filePath = app.sourceDir;

        Intent intent = new Intent(Intent.ACTION_SEND);
        intent.setType("*/*");

        intent.setPackage("com.android.bluetooth");

        Uri uri = FileProvider.getUriForFile(context, "com.xxxx.fileprovider", new File(filePath));
        intent.putExtra(Intent.EXTRA_STREAM, uri);
//        intent.setData(uri);
        intent.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
        //        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        Intent chooser = Intent.createChooser(intent, "Share app");
        chooser.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        context.startActivity(chooser);
    }