官方文档地址 permission_handler
控制台打印 提示信息的时候 可能会有两种(我遇到的)
No android specific permissions needed for: 9 可能表示 你当前申请的权限你的系统不支持 就是备注里 nothing的
No android specific permissions needed for: [ ]9 可能表示你没在 AndroidManifest 声明 .
一.插件的引用
在 pubspec.yaml 文件下新增 flutter_screenutil (注意空格问题)
dependencies:
permission_handler: ^9.2.0
二. 配置项目
按照说明书的要求
Android 部分
- 在 gradle.properties 中添加
android.useAndroidX=true
android.enableJetifier=true
- 把android/app/build.gradle 改成31
android {
compileSdkVersion 31
...
}
- 在AndroidManifest.xml 添加权限 (这一步必须的 要不然就算你申请也会提示你找不到)
还给了一份列表 按需添加
<!--
Internet permissions do not affect the `permission_handler` plugin, but are required if your app needs access to
the internet.
-->
<uses-permission android:name="android.permission.INTERNET"/>
<!-- Permissions options for the `contacts` group -->
<uses-permission android:name="android.permission.READ_CONTACTS"/>
<uses-permission android:name="android.permission.WRITE_CONTACTS"/>
<uses-permission android:name="android.permission.GET_ACCOUNTS"/>
<!-- Permissions options for the `storage` group -->
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
<!-- Permissions options for the `camera` group -->
<uses-permission android:name="android.permission.CAMERA"/>
<!-- Permissions options for the `sms` group -->
<uses-permission android:name="android.permission.SEND_SMS"/>
<uses-permission android:name="android.permission.RECEIVE_SMS"/>
<uses-permission android:name="android.permission.READ_SMS"/>
<uses-permission android:name="android.permission.RECEIVE_WAP_PUSH"/>
<uses-permission android:name="android.permission.RECEIVE_MMS"/>
<!-- Permissions options for the `phone` group -->
<uses-permission android:name="android.permission.READ_PHONE_STATE"/>
<uses-permission android:name="android.permission.CALL_PHONE"/>
<uses-permission android:name="android.permission.ADD_VOICEMAIL"/>
<uses-permission android:name="android.permission.USE_SIP"/>
<uses-permission android:name="android.permission.READ_CALL_LOG"/>
<uses-permission android:name="android.permission.WRITE_CALL_LOG"/>
<uses-permission android:name="android.permission.BIND_CALL_REDIRECTION_SERVICE"/>
<!-- Permissions options for the `calendar` group -->
<uses-permission android:name="android.permission.READ_CALENDAR" />
<uses-permission android:name="android.permission.WRITE_CALENDAR" />
<!-- Permissions options for the `location` group -->
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_BACKGROUND_LOCATION" />
<!-- Permissions options for the `microphone` or `speech` group -->
<uses-permission android:name="android.permission.RECORD_AUDIO" />
<!-- Permissions options for the `sensors` group -->
<uses-permission android:name="android.permission.BODY_SENSORS" />
<!-- Permissions options for the `accessMediaLocation` group -->
<uses-permission android:name="android.permission.ACCESS_MEDIA_LOCATION" />
<!-- Permissions options for the `activityRecognition` group -->
<uses-permission android:name="android.permission.ACTIVITY_RECOGNITION" />
<!-- Permissions options for the `ignoreBatteryOptimizations` group -->
<uses-permission android:name="android.permission.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS" />
<!-- Permissions options for the `bluetooth` group -->
<uses-permission android:name="android.permission.BLUETOOTH" />
<uses-permission android:name="android.permission.BLUETOOTH_SCAN" />
<uses-permission android:name="android.permission.BLUETOOTH_ADVERTISE" />
<uses-permission android:name="android.permission.BLUETOOTH_CONNECT" />
<!-- Permissions options for the `manage external storage` group -->
<uses-permission android:name="android.permission.MANAGE_EXTERNAL_STORAGE" />
<!-- Permissions options for the `system alert windows` group -->
<uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW" />
<!-- Permissions options for the `request install packages` group -->
<uses-permission android:name="android.permission.REQUEST_INSTALL_PACKAGES" />
<!-- Permissions options for the `access notification policy` group -->
<uses-permission android:name="android.permission.ACCESS_NOTIFICATION_POLICY"/>
ios 请到官网查看不太熟悉...
三.对插件的封装
权限分两步 先查看权限是否有允许 如果不允许再去申请
查看是否有权限
权限分五类 有两类是安卓和ios都有的 ios独有的 restricted limited Android 独有的是 permanentlyDenied
/// 检测是否有权限
/// [permissionList] 权限申请列表
/// [onSuccess] 全部成功
/// [onFailed] 有一个失败
/// [goSetting] 前往设置 插件虽然提供了一个跳转设置的方法不过也可以自定义
static checkPermission(
{required List<Permission> permissionList,
VoidCallback? onSuccess,
VoidCallback? onFailed,
VoidCallback? goSetting}) async {
///一个新待申请权限列表
List<Permission> newPermissionList = [];
///遍历当前权限申请列表
for (Permission permission in permissionList) {
PermissionStatus status = await permission.status;
///如果不是允许状态就添加到新的申请列表中
if (!status.isGranted) {
newPermissionList.add(permission);
}
}
///如果需要重新申请的列表不是空的
if (newPermissionList.isNotEmpty) {
PermissionStatus permissionStatus =
await requestPermission(newPermissionList);
switch (permissionStatus) {
///拒绝状态
case PermissionStatus.denied:
onFailed != null ? onFailed() : defaultCall("权限申请失败");
break;
///允许状态
case PermissionStatus.granted:
onSuccess != null ? onSuccess() : defaultCall("权限申请成功");
break;
/// 永久拒绝 活动限制
case PermissionStatus.restricted:
case PermissionStatus.limited:
case PermissionStatus.permanentlyDenied:
goSetting != null
? goSetting()
: openAppSettings();
break;
}
} else {
onSuccess != null ? onSuccess() : defaultCall("权限申请成功");
}
}
申请权限
/// 获取新列表中的权限 如果有一项不合格就返回false
static requestPermission(List<Permission> permissionList) async {
Map<Permission, PermissionStatus> statuses = await permissionList.request();
PermissionStatus currentPermissionStatus = PermissionStatus.granted;
statuses.forEach((key, value) {
if (!value.isGranted) {
currentPermissionStatus = value;
return;
}
});
return currentPermissionStatus;
}
还有一个需要特殊处理 ios获取checkLocationAlways 这个权限时候需要先获取 locationWhenInUse 在获取locationAlways 所以封装了以下
static checkLocationAlways(
{VoidCallback? onSuccess,
VoidCallback? onFailed,
VoidCallback? goSetting}) async {
///获取前置状态
/// Android没有这一步 ios会先访问这个再访问其他的
PermissionStatus status = PermissionStatus.granted;
status = await _checkSinglePermission(Permission.locationWhenInUse);
///获取第二个状态
PermissionStatus status2 = PermissionStatus.denied;
///如果前置状态为成功才能执行获取第二个状态
if (status.isGranted) {
status2 = await _checkSinglePermission(Permission.locationAlways);
}
///如果两个都成功那么就返回成功
if (status.isGranted && status2.isGranted) {
onSuccess != null ? onSuccess() : defaultCall("权限申请成功");
///如果有一个拒绝那么就失败了
} else if (status.isDenied || status2.isDenied) {
onFailed != null ? onFailed() : defaultCall("权限申请失败");
} else {
goSetting != null ? goSetting() : await openAppSettings();
}
}
static _checkSinglePermission(Permission permission) async {
///获取当前状态
PermissionStatus status = await permission.status;
PermissionStatus currentPermissionStatus = PermissionStatus.granted;
///如果它状态不是允许那么就去获取
if (!status.isGranted) {
currentPermissionStatus = await requestPermission([permission]);
}
///返回最终状态
return currentPermissionStatus;
}
最后
一共可以申请 0-30 共三十一个权限
其中 ios 没有的有10 个 分别是 systemAlertWindow requestInstallPackages manageExternalStorage activityRecognition sms bluetoothConnect bluetoothAdvertise bluetoothScan
accessNotificationPolicy phone
android 没有的 六个
photos photosAddOnly reminders appTrackingTransparency criticalAlerts mediaLibrary
android Q 以下没有的权限 activityRecognition
所以申请的时候记得看一下 获取相册权限ios是photo Android是storage
控制台打印 提示信息的时候 可能会有两种(我遇到的)
No android specific permissions needed for: 9 可能表示 你当前申请的权限你的系统不支持 就是备注里 nothing的
No android specific permissions needed for: [ ]9 可能表示你没在 AndroidManifest 声明 .
小的demo 在 https://gitee.com/half_city/flutter_identification_photo
