Contacts (連絡先) アクセス

取得部分のコード

kt

private fun getContactNames() {
    val cr = contentResolver
    val c = cr.query(RawContacts.CONTENT_URI, null, null, null, RawContacts.SORT_KEY_PRIMARY)
    if (c != null) {
        val idxDisplayName = c.getColumnIndex(RawContacts.DISPLAY_NAME_PRIMARY)
        val idxID = c.getColumnIndex(RawContacts._ID)

        if (c.moveToFirst()) {
            do {
                Log.d("x", c.getString(idxDisplayName))
                Log.d("x", c.getString(idxID))
            } while (c.moveToNext())
        }
        c.close()
    }
}

Permission 設定

Manifest - manifests/AndroidManifest.xml

xml

<manifest ...>
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
    <uses-permission android:name="android.permission.READ_CONTACTS" />
    
    <application...

Code

Permission 要求方法

kt

startPermissionRequest()
...
private fun startPermissionRequest() {
    requestPermissionLauncher.launch(Manifest.permission.READ_CONTACTS)
}
val requestPermissionLauncher = registerForActivityResult(
    ActivityResultContracts.RequestPermission()
) { isGranted ->
    if (isGranted) {
        getContactNames()
    } else {
        Log.d("x", "NG")
    }
}

古い書き方

kt

private val PERMISSIONS_REQUEST_READ_CONTACTS = 1 // 番号は なんでも良い？ マイナスはダメぽい

private fun showContacts() {
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M
     && checkSelfPermission(Manifest.permission.READ_CONTACTS) != PackageManager.PERMISSION_GRANTED) {
        requestPermissions(
            arrayOf<String>(Manifest.permission.READ_CONTACTS),
            PERMISSIONS_REQUEST_READ_CONTACTS
        )
    } else {
        getContactNames()
    }
}

override fun onRequestPermissionsResult(
    requestCode: Int, permissions: Array<String>,
    grantResults: IntArray
) {
    super.onRequestPermissionsResult(requestCode, permissions, grantResults)
    if (requestCode == PERMISSIONS_REQUEST_READ_CONTACTS) {
        if (grantResults[0] == PackageManager.PERMISSION_GRANTED) {
            // Permission is granted
            showContacts()
        } else {
            Toast.makeText(
                this,
                "Until you grant the permission, we cannot display the names",
                Toast.LENGTH_SHORT
            ).show()
        }
    }
}

Permission ないときのエラー

txt

Permission Denial:
opening provider com.android.providers.contacts.ContactsProvider2 from ProcessRecord..
requires android.permission.READ_CONTACTS or android.permission.WRITE_CONTACTS