Lớp của tôi cho quyền yêu cầu thời gian chạy trong ActivityhoặcFragment
Nó cũng giúp bạn hiển thị lý do hoặc mở Cài đặt để bật quyền sau khi người dùng từ chối Never ask againtùy chọn quyền (có / không ) dễ dàng hơn
class RequestPermissionHandler(private val activity: Activity? = null,
private val fragment: Fragment? = null,
private val permissions: Set<String> = hashSetOf(),
private val listener: Listener? = null
) {
private var hadShowRationale: Boolean = false
fun requestPermission() {
hadShowRationale = showRationaleIfNeed()
if (!hadShowRationale) {
doRequestPermission(permissions)
}
}
fun retryRequestDeniedPermission() {
doRequestPermission(permissions)
}
private fun showRationaleIfNeed(): Boolean {
val unGrantedPermissions = getPermission(permissions, Status.UN_GRANTED)
val permanentDeniedPermissions = getPermission(unGrantedPermissions, Status.PERMANENT_DENIED)
if (permanentDeniedPermissions.isNotEmpty()) {
val consume = listener?.onShowSettingRationale(unGrantedPermissions)
if (consume != null && consume) {
return true
}
}
val temporaryDeniedPermissions = getPermission(unGrantedPermissions, Status.TEMPORARY_DENIED)
if (temporaryDeniedPermissions.isNotEmpty()) {
val consume = listener?.onShowPermissionRationale(temporaryDeniedPermissions)
if (consume != null && consume) {
return true
}
}
return false
}
fun requestPermissionInSetting() {
val intent = Intent(Settings.ACTION_APPLICATION_DETAILS_SETTINGS)
val packageName = activity?.packageName ?: run {
fragment?.requireActivity()?.packageName
}
val uri = Uri.fromParts("package", packageName, null)
intent.data = uri
activity?.apply {
startActivityForResult(intent, REQUEST_CODE)
} ?: run {
fragment?.startActivityForResult(intent, REQUEST_CODE)
}
}
fun onRequestPermissionsResult(requestCode: Int, permissions: Array<String>,
grantResults: IntArray) {
if (requestCode == REQUEST_CODE) {
for (i in grantResults.indices) {
if (grantResults[i] == PackageManager.PERMISSION_GRANTED) {
markNeverAskAgainPermission(permissions[i], false)
} else if (!shouldShowRequestPermissionRationale(permissions[i])) {
markNeverAskAgainPermission(permissions[i], true)
}
}
var hasShowRationale = false
if (!hadShowRationale) {
hasShowRationale = showRationaleIfNeed()
}
if (hadShowRationale || !hasShowRationale) {
notifyComplete()
}
}
}
fun onActivityResult(requestCode: Int) {
if (requestCode == REQUEST_CODE) {
getPermission(permissions, Status.GRANTED).forEach {
markNeverAskAgainPermission(it, false)
}
notifyComplete()
}
}
fun cancel() {
notifyComplete()
}
private fun doRequestPermission(permissions: Set<String>) {
activity?.let {
ActivityCompat.requestPermissions(it, permissions.toTypedArray(), REQUEST_CODE)
} ?: run {
fragment?.requestPermissions(permissions.toTypedArray(), REQUEST_CODE)
}
}
private fun getPermission(permissions: Set<String>, status: Status): Set<String> {
val targetPermissions = HashSet<String>()
for (p in permissions) {
when (status) {
Status.GRANTED -> {
if (isPermissionGranted(p)) {
targetPermissions.add(p)
}
}
Status.TEMPORARY_DENIED -> {
if (shouldShowRequestPermissionRationale(p)) {
targetPermissions.add(p)
}
}
Status.PERMANENT_DENIED -> {
if (isNeverAskAgainPermission(p)) {
targetPermissions.add(p)
}
}
Status.UN_GRANTED -> {
if (!isPermissionGranted(p)) {
targetPermissions.add(p)
}
}
}
}
return targetPermissions
}
private fun isPermissionGranted(permission: String): Boolean {
return activity?.let {
ActivityCompat.checkSelfPermission(it, permission) == PackageManager.PERMISSION_GRANTED
} ?: run {
ActivityCompat.checkSelfPermission(fragment!!.requireActivity(), permission) == PackageManager.PERMISSION_GRANTED
}
}
private fun shouldShowRequestPermissionRationale(permission: String): Boolean {
return activity?.let {
ActivityCompat.shouldShowRequestPermissionRationale(it, permission)
} ?: run {
ActivityCompat.shouldShowRequestPermissionRationale(fragment!!.requireActivity(), permission)
}
}
private fun notifyComplete() {
listener?.onComplete(getPermission(permissions, Status.GRANTED), getPermission(permissions, Status.UN_GRANTED))
}
private fun getPrefs(context: Context): SharedPreferences {
return context.getSharedPreferences("SHARED_PREFS_RUNTIME_PERMISSION", Context.MODE_PRIVATE)
}
private fun isNeverAskAgainPermission(permission: String): Boolean {
return getPrefs(requireContext()).getBoolean(permission, false)
}
private fun markNeverAskAgainPermission(permission: String, value: Boolean) {
getPrefs(requireContext()).edit().putBoolean(permission, value).apply()
}
private fun requireContext(): Context {
return fragment?.requireContext() ?: run {
activity!!
}
}
enum class Status {
GRANTED, UN_GRANTED, TEMPORARY_DENIED, PERMANENT_DENIED
}
interface Listener {
fun onComplete(grantedPermissions: Set<String>, deniedPermissions: Set<String>)
fun onShowPermissionRationale(permissions: Set<String>): Boolean
fun onShowSettingRationale(permissions: Set<String>): Boolean
}
companion object {
const val REQUEST_CODE = 200
}
}
Sử dụng Activitynhư
class MainActivity : AppCompatActivity() {
private lateinit var smsAndStoragePermissionHandler: RequestPermissionHandler
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)
smsAndStoragePermissionHandler = RequestPermissionHandler(this@MainActivity,
permissions = setOf(Manifest.permission.RECEIVE_SMS, Manifest.permission.READ_EXTERNAL_STORAGE),
listener = object : RequestPermissionHandler.Listener {
override fun onComplete(grantedPermissions: Set<String>, deniedPermissions: Set<String>) {
Toast.makeText(this@MainActivity, "complete", Toast.LENGTH_SHORT).show()
text_granted.text = "Granted: " + grantedPermissions.toString()
text_denied.text = "Denied: " + deniedPermissions.toString()
}
override fun onShowPermissionRationale(permissions: Set<String>): Boolean {
AlertDialog.Builder(this@MainActivity).setMessage("To able to Send Photo, we need SMS and" + " Storage permission")
.setPositiveButton("OK") { _, _ ->
smsAndStoragePermissionHandler.retryRequestDeniedPermission()
}
.setNegativeButton("Cancel") { dialog, _ ->
smsAndStoragePermissionHandler.cancel()
dialog.dismiss()
}
.show()
return true // don't want to show any rationale, just return false here
}
override fun onShowSettingRationale(permissions: Set<String>): Boolean {
AlertDialog.Builder(this@MainActivity).setMessage("Go Settings -> Permission. " + "Make SMS on and Storage on")
.setPositiveButton("Settings") { _, _ ->
smsAndStoragePermissionHandler.requestPermissionInSetting()
}
.setNegativeButton("Cancel") { dialog, _ ->
smsAndStoragePermissionHandler.cancel()
dialog.cancel()
}
.show()
return true
}
})
button_request.setOnClickListener { handleRequestPermission() }
}
private fun handleRequestPermission() {
smsAndStoragePermissionHandler.requestPermission()
}
override fun onRequestPermissionsResult(requestCode: Int, permissions: Array<String>,
grantResults: IntArray) {
super.onRequestPermissionsResult(requestCode, permissions, grantResults)
smsAndStoragePermissionHandler.onRequestPermissionsResult(requestCode, permissions,
grantResults)
}
override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
super.onActivityResult(requestCode, resultCode, data)
smsAndStoragePermissionHandler.onActivityResult(requestCode)
}
}
Mã trên Github
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