如何在 运行 时间检查授予权限?

How to check Grants Permissions at Run-Time?

Android M(预览版)中,用户可以选择特定的应用程序并检索特定的权限。

所以我想问如何在运行-时间检查授予权限?

不错!!

我刚找到我的需要我们可以检查权限是否被授予:

checkSelfPermission(Manifest.permission.READ_CONTACTS)

必要时申请权限

if (checkSelfPermission(Manifest.permission.READ_CONTACTS)
            != PackageManager.PERMISSION_GRANTED) {
        requestPermissions(new String[]{Manifest.permission.READ_CONTACTS},
                MY_PERMISSIONS_REQUEST_READ_CONTACTS);

        // MY_PERMISSIONS_REQUEST_READ_CONTACTS is an
        // app-defined int constant

        return;
    }

处理权限请求响应

@Override
public void onRequestPermissionsResult(int requestCode,
        String permissions[], int[] grantResults) {
    switch (requestCode) {
        case MY_PERMISSIONS_REQUEST_READ_CONTACTS: {
            if (grantResults[0] == PackageManager.PERMISSION_GRANTED) {

                // permission was granted, yay! do the
                // calendar task you need to do.

            } else {

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

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

最佳描述在:http://inthecheesefactory.com/blog/things-you-need-to-know-about-android-m-permission-developer-edition/en

对于简单的使用权限,您可以使用这个库:http://hotchemi.github.io/PermissionsDispatcher/

您也可以通过以下代码片段查询为向后兼容;

int hasPermission = ContextCompat.checkSelfPermission(this,Manifest.permission.WRITE_CONTACTS);
if (hasPermission == PackageManager.PERMISSION_GRANTED) {
    //Do smthng
}

试试这个而不是简单的请求代码
https://www.learn2crack.com/2015/10/android-marshmallow-permissions.html

public static final int REQUEST_ID_MULTIPLE_PERMISSIONS = 1;

private  boolean checkAndRequestPermissions() {
    int camera = ContextCompat.checkSelfPermission(this, android.Manifest.permission.CAMERA);
    int storage = ContextCompat.checkSelfPermission(this, android.Manifest.permission.WRITE_EXTERNAL_STORAGE);
    int loc = ContextCompat.checkSelfPermission(this, android.Manifest.permission.ACCESS_COARSE_LOCATION);
    int loc2 = ContextCompat.checkSelfPermission(this, android.Manifest.permission.ACCESS_FINE_LOCATION);
    List<String> listPermissionsNeeded = new ArrayList<>();

    if (camera != PackageManager.PERMISSION_GRANTED) {
        listPermissionsNeeded.add(android.Manifest.permission.CAMERA);
    }
    if (storage != PackageManager.PERMISSION_GRANTED) {
        listPermissionsNeeded.add(android.Manifest.permission.WRITE_EXTERNAL_STORAGE);
    }
    if (loc2 != PackageManager.PERMISSION_GRANTED) {
        listPermissionsNeeded.add(android.Manifest.permission.ACCESS_FINE_LOCATION);
    }
    if (loc != PackageManager.PERMISSION_GRANTED) {
        listPermissionsNeeded.add(android.Manifest.permission.ACCESS_COARSE_LOCATION);
    }
    if (!listPermissionsNeeded.isEmpty())
    {
        ActivityCompat.requestPermissions(this,listPermissionsNeeded.toArray
                (new String[listPermissionsNeeded.size()]),REQUEST_ID_MULTIPLE_PERMISSIONS);
        return false;
    }
    return true;
}
fun hasPermission(permission: String): Boolean {
      if (Build.VERSION.SDK_INT < Build.VERSION_CODES.M) return true // must be granted after installed.
      return mAppSet.appContext.checkSelfPermission(permission) == PackageManager.PERMISSION_GRANTED
}

对于位置运行时权限

ActivityCompat.requestPermissions(this,new String[]{android.Manifest.permission.ACCESS_FINE_LOCATION}, 1);

public void onRequestPermissionsResult(int requestCode, String permissions[], int[] grantResults) {
    switch (requestCode) {
        case 1: {
            // If request is cancelled, the result arrays are empty.
            if (grantResults.length > 0
                    && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
                Log.d("yes","yes");

            } else {
                Log.d("yes","no");
                // permission denied, boo! Disable the
                // functionality that depends on this permission.
            }
            return;
        }
        // other 'case' lines to check for other
        // permissions this app might request
    }
}

试试这个检查 运行-时间权限:

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    checkRunTimePermission();
}

检查运行时间权限:

private void checkRunTimePermission() {
    String[] permissionArrays = new String[]{Manifest.permission.CAMERA, Manifest.permission.WRITE_EXTERNAL_STORAGE};

    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
        requestPermissions(permissionArrays, 11111);
    } else {
         // if already permition granted
        // PUT YOUR ACTION (Like Open cemara etc..)
    }
}

处理权限结果:

@Override
public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
    super.onRequestPermissionsResult(requestCode, permissions, grantResults);
    boolean openActivityOnce = true;
    boolean openDialogOnce = true;
    if (requestCode == 11111) {
        for (int i = 0; i < grantResults.length; i++) {
            String permission = permissions[i];

            isPermitted = grantResults[i] == PackageManager.PERMISSION_GRANTED;

            if (grantResults[i] == PackageManager.PERMISSION_DENIED) {
                // user rejected the permission
                boolean showRationale = shouldShowRequestPermissionRationale(permission);
                if (!showRationale) {
                    //execute when 'never Ask Again' tick and permission dialog not show
                } else {
                    if (openDialogOnce) {
                        alertView();
                    }
                }
            }
        }

        if (isPermitted)
            if (isPermissionFromGallery)
                openGalleryFragment();
    }
}

设置自定义提醒:

private void alertView() {
    AlertDialog.Builder dialog = new AlertDialog.Builder(getActivity(), R.style.MyAlertDialogStyle);

    dialog.setTitle("Permission Denied")
            .setInverseBackgroundForced(true)
            //.setIcon(R.drawable.ic_info_black_24dp)
            .setMessage("Without those permission the app is unable to save your profile. App needs to save profile image in your external storage and also need to get profile image from camera or external storage.Are you sure you want to deny this permission?")

            .setNegativeButton("I'M SURE", new DialogInterface.OnClickListener() {
                public void onClick(DialogInterface dialoginterface, int i) {
                    dialoginterface.dismiss();
                }
            })
            .setPositiveButton("RE-TRY", new DialogInterface.OnClickListener() {
                public void onClick(DialogInterface dialoginterface, int i) {
                    dialoginterface.dismiss();
                    checkRunTimePermission();

                }
            }).show();
}

原创(不是我的)post

对于特殊权限,例如android.Manifest.permission.PACKAGE_USAGE_STATS使用AppOpsManager
科特林

private fun hasPermission(permission:String, permissionAppOpsManager:String): Boolean {
    var granted = false
    if (VERSION.SDK_INT >= VERSION_CODES.M) {
        // requires kitkat
        val appOps = applicationContext!!.getSystemService(Context.APP_OPS_SERVICE) as AppOpsManager

        // requires lollipop
        val mode = appOps.checkOpNoThrow(permissionAppOpsManager,
                              android.os.Process.myUid(), applicationContext!!.packageName)

        if (mode == AppOpsManager.MODE_DEFAULT) {
            granted = applicationContext!!.checkCallingOrSelfPermission(permission) == PackageManager.PERMISSION_GRANTED
        } else {
            granted = mode == AppOpsManager.MODE_ALLOWED
        }
    }

    return granted
}

以及代码中的任意位置:

val permissionAppOpsManager = AppOpsManager.OPSTR_GET_USAGE_STATS
val permission = android.Manifest.permission.PACKAGE_USAGE_STATS
val permissionActivity = Settings.ACTION_USAGE_ACCESS_SETTINGS

if (hasPermission(permission, permissionAppOpsManager)) {
    Timber.i("has permission: $permission")
    // do here what needs permission
} else {
    Timber.e("has no permission: $permission")
    // start activity to get permission
    startActivity(Intent(permissionActivity))
}

您可以通过 TedPermission library

获得的其他权限

使用Dexter library

将库添加到您的 build.gradle

dependencies{
    implementation 'com.karumi:dexter:4.2.0'
}

此示例请求 WRITE_EXTERNAL_STORAGE.

Dexter.withActivity(this)
                .withPermission(Manifest.permission.WRITE_EXTERNAL_STORAGE)
                .withListener(new PermissionListener() {
                    @Override
                    public void onPermissionGranted(PermissionGrantedResponse response) {
                        // permission is granted, open the camera
                    }

                    @Override
                    public void onPermissionDenied(PermissionDeniedResponse response) {
                        // check for permanent denial of permission
                        if (response.isPermanentlyDenied()) {
                            // navigate user to app settings
                        }
                    }

                    @Override
                    public void onPermissionRationaleShouldBeShown(PermissionRequest permission, PermissionToken token) {
                        token.continuePermissionRequest();
                    }
                }).check();

检查这个答案

查看 git 中的以下库:

RuntimePermission

实施:

        allprojects {
            repositories {
                ...
                maven { url 'https://jitpack.io' }
            }
        }
        
        dependencies {
            implementation 'com.github.manoj140220:RuntimePermission:1.0.3'
        }
    
    
      
    
        new RuntimePermission({Current Class Object}, String[] , {ActvityContext});
          
          String[] : permission array.
          example  : String[] permissionArray = {Manifest.permission.CAMERA, Manifest.permission.BODY_SENSORS,...} 
    
    Implement : {PermissionNotify}
    
    interface notifier methods.
    
    @Override
    public void notifyPermissionGrant() {
        
    }
    
    @Override
    public void notifyPermissionDeny() {
         
    }