使用 API 22 Android 请求权限

Question

在我正在工作的项目中，我们有一组权限，其中 3 个被标记为dangerous。在Android

所以，在谷歌搜索权限，我到达了谷歌文档页面，在那里讨论如何请求它：http://developer.android.com/intl/es/training/permissions/requesting.html

他们使用这个代码。

if (ContextCompat.checkSelfPermission(thisActivity,
                Manifest.permission.READ_CONTACTS)
        != PackageManager.PERMISSION_GRANTED) { ... }

ContextCompat.CheckSelfPermission(..) 仅在 API 23 中。

但问题在于，对于项目中的某些规范（老板等），我们无法升级到 API 23，以使用包含此方法的库兼容。

所以我的问题是：

有什么方法可以处理权限的请求，做一些变通？

权限：

<uses-permission android:name="xx.xx.otr.app.providers.imps.permission.READ_ONLY" />
    <uses-permission android:name="xx.xx.otr.app.providers.imps.permission.WRITE_ONLY" />
    <uses-permission android:name="android.permission.WAKE_LOCK" />
    <uses-permission android:name="android.permission.VIBRATE" />
    <uses-permission android:name="android.permission.INTERNET" />
    <uses-permission android:name="android.permission.CHANGE_WIFI_MULTICAST_STATE" />
    <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
    <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
    <uses-permission android:name="es.in2.otr.app.im.permission.IM_SERVICE" />
    <uses-permission android:name="android.permission.UPDATE_APP_OPS_STATS" />
    <uses-permission android:name="android.permission.GET_ACCOUNTS" />
    <uses-permission android:name="android.permission.MANAGE_ACCOUNTS" />
    <uses-permission android:name="android.permission.USE_CREDENTIALS" />
    <uses-permission android:name="com.google.android.googleapps.permission.GOOGLE_AUTH" />
    <uses-permission android:name="android.permission.RECORD_AUDIO" />

    <uses-permission android:name="com.google.android.c2dm.permission.RECEIVE" />

    <permission
        android:name="xx.xx.otr.app.im.permission.C2D_MESSAGE"
        android:protectionLevel="signature" />

    <uses-permission android:name="xx.xx.otr.app.im.permission.C2D_MESSAGE" />

    <permission
        android:name="xx.xx.otr.app.im.permission.IM_SERVICE"
        android:description="@string/perm_desc"
        android:label="@string/perm_label"
        android:permissionGroup="android.permission-group.MESSAGES"
        android:protectionLevel="dangerous" />
    <permission
        android:name="xx.xx.otr.app.providers.imps.permission.READ_ONLY"
        android:description="@string/ro_perm_desc"
        android:label="@string/ro_perm_label"
        android:permissionGroup="android.permission-group.MESSAGES"
        android:protectionLevel="dangerous" />
    <permission
        android:name="xx.xx.otr.app.providers.imps.permission.WRITE_ONLY"
        android:description="@string/wo_perm_desc"
        android:label="@string/wo_perm_label"
        android:permissionGroup="android.permission-group.MESSAGES"
        android:protectionLevel="dangerous" />

Answer 1

看看这个链接

“管理运行时权限最简单的方法是使用第三方库” PermissionsDispatcher 是专门为危险权限开发的

https://guides.codepath.com/android/Managing-Runtime-Permissions-with-PermissionsDispatcher

Answer 2

如下请求你需要的权限，

// Here, thisActivity is the current activity
if (ContextCompat.checkSelfPermission(thisActivity,
                Manifest.permission.READ_CONTACTS)
        != PackageManager.PERMISSION_GRANTED) {

    // Should we show an explanation?
    if (ActivityCompat.shouldShowRequestPermissionRationale(thisActivity,
            Manifest.permission.READ_CONTACTS)) {

        // Show an expanation to the user *asynchronously* -- don't block
        // this thread waiting for the user's response! After the user
        // sees the explanation, try again to request the permission.

    } else {

        // No explanation needed, we can request the permission.

        ActivityCompat.requestPermissions(thisActivity,
                new String[]{Manifest.permission.READ_CONTACTS},
                MY_PERMISSIONS_REQUEST_READ_CONTACTS);

        // MY_PERMISSIONS_REQUEST_READ_CONTACTS is an
        // app-defined int constant. The callback method gets the
        // result of the request.
    }
}


Get the response of the permission as follows, 
@Override
public void onRequestPermissionsResult(int requestCode,
        String permissions[], int[] grantResults) {
    switch (requestCode) {
        case MY_PERMISSIONS_REQUEST_READ_CONTACTS: {
            // If request is cancelled, the result arrays are empty.
            if (grantResults.length > 0
                && grantResults[0] == PackageManager.PERMISSION_GRANTED) {

                // permission was granted, yay! Do the
                // contacts-related task you need to do.

            } else {

                // permission denied, boo! Disable the
                // functionality that depends on this permission.
            }
            return;
        }

        // other 'case' lines to check for other
        // permissions this app might request
    }
}

有关它的更多详细信息，您可以参考谷歌开发者文档， http://developer.android.com/training/permissions/requesting.html

希望这会对你有所帮助。