AndroidManifest.xml
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
MainActivity.kt
class MainActivity : AppCompatActivity() {
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)
if (ContextCompat.checkSelfPermission(
this@MainActivity,
Manifest.permission.WRITE_EXTERNAL_STORAGE
) != PackageManager.PERMISSION_GRANTED
) {
ActivityCompat.requestPermissions(
this@MainActivity,
arrayOf(Manifest.permission.WRITE_EXTERNAL_STORAGE),
1
)
}
}
override fun onRequestPermissionsResult(
requestCode: Int,
permissions: Array<String?>,
grantResults: IntArray
) {
super.onRequestPermissionsResult(requestCode, permissions, grantResults)
when (requestCode) {
1 -> if (grantResults.isNotEmpty() && grantResults[0] != PackageManager.PERMISSION_GRANTED) {
Toast.makeText(this, "拒绝权限将无法使用程序", Toast.LENGTH_SHORT).show()
finish()
}
else -> {}
}
}
}
