前言

应用的使用需要申请权限，但是如果用户禁用掉，或者禁用并不再提醒就必须到系统设置中开启。

// 权限

implementation 'com.yanzhenjie:permission:2.0.3'

获取权限

interface PermissionsCallBack {

fun Granted();

}

private fun getPermission(callback: PermissionsCallBack) {

if (hasPermissions) {

callback.Granted()

return

}

if (AndPermission.hasPermissions(this, *permissions)) {

hasPermissions = true

callback.Granted()

return

}

AndPermission

.with(this)

.runtime()

.permission(*permissions)

.onGranted {

hasPermissions = true

callback.Granted()

}

.onDenied {

mContext?.let {

Toasty.info(it, "授权失败，功能无法使用！").show()

AlertDialog.Builder(it)

.setTitle("提示")

.setMessage("需要打开应用权限才能正常使用！")

.setNegativeButton("取消", object : DialogInterface.OnClickListener {

override fun onClick(dialog: DialogInterface?, which: Int) {

dialog?.dismiss()

}

})

.setPositiveButton("确定", object : DialogInterface.OnClickListener {

override fun onClick(dialog: DialogInterface?, which: Int) {

dialog?.dismiss()

gotoMiuiPermission()

}

}).create().show()

}

}

.start();

}

打开权限设置页面

我们可以打开系统的设置页面，但是该页面会有应用卸载的功能，为了让用户直接跳转到应用权限页面，我们就要根据不同的系统进行调用。

/**

* 跳转到miui的权限管理页面

*/

private fun gotoMiuiPermission() {

val i = Intent("miui.intent.action.APP_PERM_EDITOR")

val componentName = ComponentName(

"com.miui.securitycenter",

"com.miui.permcenter.permissions.PermissionsEditorActivity"

)

i.component = componentName

i.putExtra("extra_pkgname", activity?.packageName)

try {

startActivity(i)

} catch (e: Exception) {

e.printStackTrace()

gotoMeizuPermission()

}

}

/**

* 跳转到魅族的权限管理系统

*/

private fun gotoMeizuPermission() {

val intent = Intent("com.meizu.safe.security.SHOW_APPSEC")

intent.addCategory(Intent.CATEGORY_DEFAULT)

intent.putExtra("packageName", activity?.packageName)

try {

startActivity(intent)

} catch (e: java.lang.Exception) {

e.printStackTrace()

gotoHuaweiPermission()

}

}

/**

* 华为的权限管理页面

*/

private fun gotoHuaweiPermission() {

try {

val intent = Intent()

intent.flags = Intent.FLAG_ACTIVITY_NEW_TASK

val comp = ComponentName(

"com.huawei.systemmanager",

"com.huawei.permissionmanager.ui.MainActivity"

) //华为权限管理

intent.component = comp

startActivity(intent)

} catch (e: java.lang.Exception) {

e.printStackTrace()

getAppDetailSettingIntent()

}

}

/**

* 跳转到权限设置界面

*/

private fun getAppDetailSettingIntent() {

val intent = Intent()

intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)

intent.action = "android.settings.APPLICATION_DETAILS_SETTINGS"

intent.data = Uri.fromParts("package", activity?.packageName, null)

startActivity(intent)

}