关联博客

Android ActivityResultContracts 替代 startActivityForResult

Android 11 权限变更

官方文档

Beginning with Android 11, ACTION_MANAGE_OVERLAY_PERMISSION intents always bring the user to the top-level Settings screen, where the user can grant or revoke the SYSTEM_ALERT_WINDOW permissions for apps. Any package: data in the intent is ignored.
If your app targets Android 11 or higher and needs to access the phone number APIs shown in the following list, you must request the READ_PHONE_NUMBERS permission, instead of the READ_PHONE_STATE permission.

The getLine1Number() method in both the TelephonyManager class and the TelecomManager class.
The unsupported getMsisdn() method in the TelephonyManager class.

<manifest><!-- Grants the READ_PHONE_STATE permission only on devices that runAndroid 10 (API level 29) and lower. --><uses-permission android:name="android.permission.READ_PHONE_STATE"android:maxSdkVersion="29" /><uses-permission android:name="android.permission.Camera" /><uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
</manifest>

权限申请

官方文档
文档中的流程图：

通过文档与流程图，再结合
Android ActivityResultContracts 替代 startActivityForResult

inline fun SupportFragment.requestPermission(crossinline block: (Boolean) -> Unit): ActivityResultLauncher<String> {return registerForActivityResult(ActivityResultContracts.RequestPermission()) { result ->block(result)}
}

对单个权限的请求流程做了封装。

通常一个功能，要请求的权限也很少超过两个。如果超过了，那可能这是一个组合功能，可以拆解成较细粒度的功能。

BasePermissionExtendFragment.kt

import android.content.Context
import android.content.Intent
import android.net.Uri
import android.provider.Settings
import android.widget.Toast
import androidx.activity.result.contract.ActivityResultContracts
import androidx.appcompat.app.AlertDialog
import androidx.core.app.ActivityCompat
import androidx.core.content.ContextCompat
import androidx.core.content.PermissionChecker/*** desc:* author:  stone* email:   aa86799@163.com* time:    2021/6/9 14:40*/
abstract class BasePermissionExtendFragment : BaseExtendFragment() {private var mGrantedCallback: (() -> Unit)? = nullprivate var mDeniedCallback: (() -> Unit)? = nullval mRequestPermissionLauncher =requestPermission { isGranted: Boolean ->if (isGranted) {if (mGrantedCallback != null) {mGrantedCallback?.invoke()return@requestPermission}Toast.makeText(requireContext(), "granted", Toast.LENGTH_SHORT).show()} else {if (mDeniedCallback != null) {mDeniedCallback?.invoke()return@requestPermission}Toast.makeText(requireContext(), "denied", Toast.LENGTH_SHORT).show()AlertDialog.Builder(requireContext()).setTitle("why need it ， please go to setting and open it").setPositiveButton("confirm") { dialog, _ ->}.create().show()}}fun checkPermission(permission: String,grantedCallback: (() -> Unit)? = null,rationaleCallback: (() -> Unit)? = null,deniedCallback: (() -> Unit)? = null) {mGrantedCallback = grantedCallbackmDeniedCallback = deniedCallbackval selfPermission = ContextCompat.checkSelfPermission(requireContext(), permission)when {// 已授权selfPermission == PermissionChecker.PERMISSION_GRANTED -> {if (mGrantedCallback != null) {mGrantedCallback?.invoke()return}Toast.makeText(requireContext(), "granted", Toast.LENGTH_SHORT).show()}// 拒绝，但未选中 "不再提醒"； 可能弹窗提示用户，需要此权限的原因ActivityCompat.shouldShowRequestPermissionRationale(requireActivity(), permission) -> {if (rationaleCallback != null) {rationaleCallback.invoke()return}// show tips, needs permission why it isAlertDialog.Builder(requireContext()).setTitle("why need it ").setNegativeButton("cancel") { dialog, _ ->}.setPositiveButton("confirm") { dialog, _ ->mRequestPermissionLauncher.launch(permission)}.create().show()}// 拒绝，且不再提醒selfPermission == PermissionChecker.PERMISSION_DENIED -> {mRequestPermissionLauncher.launch(permission)}}}// 打开当前应用的 系统设置界面fun toSelfSetting(context: Context) {Intent().apply {addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)action = Settings.ACTION_APPLICATION_DETAILS_SETTINGSdata = Uri.fromParts("package", context.packageName, null)context.startActivity(this)}}
}

grantedCallback: 授权后的正常操作；
rationaleCallback: 拒绝(可以提醒)的操作；
deniedCallback: 拒绝(不再提醒的)的操作。

PermissionExtend.kt

对 BasePermissionExtendFragment 进行扩展。增加特定权限的统一处理。

/*** desc:* author:  stone* email:   aa86799@163.com* time:    2021/6/9 14:42*//*** 图片等文件读写操作，可能要用到 WRITE_EXTERNAL_STORAGE 外部存储权限。* android 11 及以上 不再提供 WRITE_EXTERNAL_STORAGE 权限，被标记为 已过时。* 为了兼容性，>=6 && <=10 需要 权限检查。*/
fun BasePermissionExtendFragment.storagePermissionHandle(granted: (() -> Unit)? = null) {val permission = Manifest.permission.WRITE_EXTERNAL_STORAGEcheckPermission(permission, grantedCallback = {granted?.invoke()}, rationaleCallback = {alert(getString(R.string.reject_tip), resources.getString(R.string.warning)) {positiveButton(getString(R.string.confirm)) { dialog ->mRequestPermissionLauncher.launch(permission)}}.show()}, deniedCallback = {alert(getString(R.string.reject_tip), resources.getString(R.string.warning)) {positiveButton(getString(R.string.confirm)) { dialog ->toSelfSetting(requireContext())}}.show()})
}/*** 请求相机权限. 通常也需要请求 外部存储权限 (WRITE_EXTERNAL_STORAGE)*/
fun BasePermissionExtendFragment.cameraPermissionHandle(albumPermission: Boolean = true, granted: (() -> Unit)? = null) {val permission = Manifest.permission.CAMERAcheckPermission(permission, grantedCallback = {if (albumPermission)storagePermissionHandle(granted)elsegranted?.invoke()}, rationaleCallback = {alert(getString(R.string.needCameraPermission), resources.getString(R.string.warning)) {positiveButton(getString(R.string.confirm)) { dialog ->mRequestPermissionLauncher.launch(permission)}}.show()}, deniedCallback = {alert(getString(R.string.startCameraPermissionHint), resources.getString(R.string.warning)) {positiveButton(getString(R.string.confirm)) { dialog ->toSelfSetting(requireContext())}}.show()})
}/*** 请求定位权限. 要先检查是否开启了定位服务*/
fun BasePermissionExtendFragment.locationPermissionHandle(granted: (() -> Unit)? = null) {if (!checkLocationService()) returnval permission = Manifest.permission.ACCESS_FINE_LOCATIONcheckPermission(permission, grantedCallback = {granted?.invoke()}, rationaleCallback = {alert(getString(R.string.needLocationPermission), resources.getString(R.string.warning)) {positiveButton(getString(R.string.confirm)) { dialog ->mRequestPermissionLauncher.launch(permission)}}.show()}, deniedCallback = {alert(getString(R.string.location_is_required), resources.getString(R.string.warning)) {positiveButton(getString(R.string.confirm)) {toSelfSetting(requireContext())}}.show()})
}// 如果打开了定位服务，true；  否则 让用户去设置页面打开定位服务
private fun BasePermissionExtendFragment.checkLocationService(): Boolean {return if (CheckLocationService.isLocServiceEnable(ExpressApplication.instance())) {true} else {alert(getString(R.string.if_not_be_able_connect_bluetooth_printer)) {positiveButton(R.string.confirm) {val locationSet = Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS)startActivity(locationSet)}negativeButton(R.string.cancel) {}}.show()false}
}

想对一个具体权限进行怎样的提示与处理，就定义在这里。
类似定位权限的申请麻烦点，它首先要依赖定位服务。

定位服务检测：

import android.content.Context
import android.location.LocationManagerobject CheckLocationService {/*** 手机是否开启位置服务，如果没有开启那么所有app将不能使用定位功能*/fun isLocServiceEnable(context: Context): Boolean {val locationManager = context.getSystemService(Context.LOCATION_SERVICE) as LocationManagerval gps = locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER)val netWork = locationManager.isProviderEnabled(LocationManager.NETWORK_PROVIDER)return gps || netWork}
}

最终调用者就舒服了:

storagePermissionHandle { //do sth. }
cameraPermissionHandle { //do sth. }
locationPermissionHandle { //do sth. }

Android ActivityResultContracts 请求权限(封装；含android 11权限变更)相关推荐

Android 网络请求、网络状态及各种权限判断
一.判断网络连接是否可用 public static boolean isNetworkAvailable(Context context) { ConnectivityManager cm = (C ...
android get请求最长字符,Android OKHTTP3的GET和POST方法(带basic auth)
使用前需要在Gradle Script中的build gradle中引入: compile 'com.squareup.okio:okio:1.13.0' compile 'com.squareup. ...
android get请求最长字符串,android – Retrofit @GET – 如何显示请求字符串？
我正在使用一个使用Retrofit创建一个休息的客户端的 Android应用程序.为了调试网络调用,我想显示或转储实际被调用的url.有没有办法做到这一点?我已经在下面列出了一些代码,显示了应用程序当 ...
android 界面跳转封装,【Android】Fragment跳转系列
一.同一个Activity下Fragment之间相互跳转(含带参数) Fragment1跳转到Fragment2中 1.封装一个方法这样封装是方便一个Activity下有多个Fragment来回跳转 ...
如何在Android 11 中正确请求位置权限？以及Android 8 - 11位置权限的变化及适配方法！
由于现在位置信息变为了敏感数据,因此Android限制了它的使用,尤其在APP后台. 在Android 9 之前,位置权限没有按照前后台分离,APP在前台和后台使用相同的资源. 但是,Google开始 ...
为什么说在Android中请求权限从来都不是一件简单的事情？
本文同步发表于我的微信公众号,扫一扫文章底部的二维码或在微信搜索郭霖即可关注,每个工作日都有文章更新. 周末时间参加了东莞和深圳的两场GDG,因为都是线上参与,所以时间上并不赶,我只需要坐在家里等 ...
android 6.0权限封装,Android6.0------权限申请管理（单个权限和多个权限申请）
Android开发时,到6.0系统上之后,有的权限就得申请才能用了. Android将权限分为正常权限和危险权限 Android系统权限分为几个保护级别.需要了解的两个最重要保护级别是正常权限 ...
Android 6.0及以上版本动态申请权限，11权限
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {//安卓11文件权限// 先判断有没有权限if (Environment.isExter ...
android 权限开启回调,Android M请求onSurfaceTextureAvailable回调权限不在活动
症状:首次启动我的应用程序崩溃java.lang.SecurityException: Lacking privileges to access camera service.我收到了"不幸 ...

Android ActivityResultContracts 请求权限(封装；含android 11权限变更)

文章目录