Question

我正在尝试添加运行时权限android（6.0.1）API 23，如果我使用SDK版本（ min和目标版本都是23 ），它会很好，如下所示，

    <uses-sdk
                android:minSdkVersion="23"
                android:targetSdkVersion="23" />

如果我更改android：minSdkVersion（少于23）

例如：

我收到以下错误：

呼叫需要API级别23（当前最小值为14）： android.app.Activity＃requestPermissions，checkSelfPermission

对于以下2种方法，

1)requestPermissions(permissionsList.toArray(new String[permissionsList.size()]),REQUEST_CODE_ASK_MULTIPLE_PERMISSIONS)

2)checkSelfPermission(permission)

我尝试了ActivityCompat.checkSelfPermission()，ContextCompat.checkSelfPermission()两者都无效。

我遗失的东西无法理解......

Answer 1

检查权限：

ContextCompat.checkSelfPermission(Context context, String permission)

请求权限：

ActivityCompat.requestPermissions(Activity activity, String[] permissions, int requestCode)

或在support-v4 Fragment

内

requestPermissions(String[] permissions, int requestCode)

Answer 2

检查目标＆gt; = 23或只是在方法

上方添加以下行

@TargetApi(Build.VERSION_CODES.M)

例如，如果要检查存储权限，则可以参考此功能

@TargetApi(Build.VERSION_CODES.M)
    public boolean CheckStoragePermission() {
        int permissionCheckRead = ContextCompat.checkSelfPermission(context,
                Manifest.permission.READ_EXTERNAL_STORAGE);
        if (permissionCheckRead != PackageManager.PERMISSION_GRANTED) {
            if (ActivityCompat.shouldShowRequestPermissionRationale((Activity) context,
                    Manifest.permission.READ_EXTERNAL_STORAGE)) {
                // 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.
                ActivityCompat.requestPermissions((Activity) context,
                        new String[]{Manifest.permission.READ_EXTERNAL_STORAGE},
                        Define.PERMISSION_STORAGE);
            } else {
                // No explanation needed, we can request the permission.

                ActivityCompat.requestPermissions((Activity) context,
                        new String[]{Manifest.permission.READ_EXTERNAL_STORAGE},
                        Define.PERMISSION_STORAGE);

                // MY_PERMISSIONS_REQUEST_READ_CONTACTS is an
                // app-defined int constant. The callback method gets the
                // result of the request.
            }
            return false;
        } else
            return true;
    }

Answer 3

试试这种方式

if (Build.VERSION.SDK_INT < 23) {
        // your code 
} else {
    if (ActivityCompat.checkSelfPermission(MainActivity.this, Manifest.permission.READ_PHONE_STATE)
                != PackageManager.PERMISSION_GRANTED) {
            requestContactsPermissions1();
    } else {
        // your code
    }
}

编辑：

在较低级别（您的应用）build.gradle添加依赖项块：

compile 'com.android.support:appcompat-v7:23.1.1'

或仅在您需要设计支持库

时添加以下内容

compile 'com.android.support:design:23.1.1'

使用以上

之一

Answer 4

这是因为 API 23 中添加了checkSelfPermission()。所以你必须有条件地编码：

if(Build.VERSION.SDK_INT>=Build.VERSION_CODES.M){
    //use checkSelfPermission()
} else {
    //simply use the required feature
    //as the user has already granted permission to them during installation
}

Answer 5

在调用请求权限

之前检查设备sdk

 if(Build.VERSION.SDK_INT==Build.VERSION_CODES.M)
{
//call the request permission here 
}

调用需要API级别23（当前最小值为14）：android.app.Activity＃requestPermissions，checkSelfPermission

5 个答案: