android应用获取通知栏权限

android应用获取手机是否有通知栏的权限：

package com.jibo.health.views;

import android.app.AppOpsManager;

import android.content.Context;

import android.content.pm.ApplicationInfo;

import java.lang.reflect.Field;

import java.lang.reflect.InvocationTargetException;

import java.lang.reflect.Method;

/**

*/

public class NotificationsUtils {

private static final String CHECK_OP_NO_THROW = "checkOpNoThrow";private static final String OP_POST_NOTIFICATION = "OP_POST_NOTIFICATION";public static boolean isNotificationEnabled(Context context) {AppOpsManager mAppOps = (AppOpsManager) context.getSystemService(Context.APP_OPS_SERVICE);ApplicationInfo appInfo = context.getApplicationInfo();String pkg = context.getApplicationContext().getPackageName();int uid = appInfo.uid;Class appOpsClass = null;/* Context.APP_OPS_MANAGER */try {appOpsClass = Class.forName(AppOpsManager.class.getName());Method checkOpNoThrowMethod =appOpsClass.getMethod(CHECK_OP_NO_THROW,Integer.TYPE,Integer.TYPE,String.class);Field opPostNotificationValue = appOpsClass.getDeclaredField(OP_POST_NOTIFICATION);int value = (int) opPostNotificationValue.get(Integer.class);return ((int) checkOpNoThrowMethod.invoke(mAppOps, value, uid, pkg) ==AppOpsManager.MODE_ALLOWED);} catch (ClassNotFoundException e) {e.printStackTrace();} catch (NoSuchMethodException e) {e.printStackTrace();} catch (NoSuchFieldException e) {e.printStackTrace();} catch (InvocationTargetException e) {e.printStackTrace();} catch (IllegalAccessException e) {e.printStackTrace();}return false;}

}

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