Android定位服务关闭和定位（悬浮）等权限拒绝的判断

  public void checkLocationPermission() {
        if (!PermissionHelper.isLocServiceEnable(this)) {//检测是否开启定位服务
            DlgUtils.showLocServiceDialog(this);
        } else {//检测用户是否将当前应用的定位权限拒绝
            int checkResult = PermissionHelper.checkOp(this, 2, AppOpsManager.OPSTR_FINE_LOCATION);//其中2代表AppOpsManager.OP_GPS，如果要判断悬浮框权限，第二个参数需换成24即AppOpsManager。OP_SYSTEM_ALERT_WINDOW及，第三个参数需要换成AppOpsManager.OPSTR_SYSTEM_ALERT_WINDOW
            int checkResult2 = PermissionHelper.checkOp(this, 1, AppOpsManager.OPSTR_FINE_LOCATION);
            if (AppOpsManagerCompat.MODE_IGNORED == checkResult || AppOpsManagerCompat.MODE_IGNORED == checkResult2) {
                DlgUtils.showLocIgnoredDialog(this);
            }
        }
    }

DlgUtils.java代码如下

/**
     * 显示定位服务未开启确认对话框
     */
    public static void showLocServiceDialog(final Context context) {
        new AlertDialog.Builder(context).setTitle("手机未开启位置服务")
                .setMessage("请在 设置-位置信息 (将位置服务打开))")
                .setNegativeButton("取消", null)
                .setPositiveButton("去设置", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        Intent intent = new Intent();
                        intent.setAction(Settings.ACTION_LOCATION_SOURCE_SETTINGS);
                        intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
                        try {
                            context.startActivity(intent);
                        } catch (ActivityNotFoundException ex) {
                            intent.setAction(Settings.ACTION_SETTINGS);
                            try {
                                context.startActivity(intent);
                            } catch (Exception e) {
                                e.printStackTrace();
                            }
                        }
                    }
                })
                .show();
    }

    /**
     * 显示定位权限被拒绝对话框
     */
    public static void showLocIgnoredDialog(final Context context) {
        AlertDialog.Builder builder = new AlertDialog.Builder(context);
        builder.setIcon(R.mipmap.ic_launcher);
        builder.setTitle("手机已关闭位置权限");
        builder.setMessage("请在 设置-应用权限 (将位置权限打开))");

        //监听下方button点击事件
        builder.setPositiveButton("去设置", new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialogInterface, int i) {
                Intent localIntent = new Intent();
                localIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
                if (Build.VERSION.SDK_INT >= 9) {
                    localIntent.setAction("android.settings.APPLICATION_DETAILS_SETTINGS");
                    localIntent.setData(Uri.fromParts("package", getPackageName(), null));
                } else if (Build.VERSION.SDK_INT <= 8) {
                    localIntent.setAction(Intent.ACTION_VIEW);
                    localIntent.setClassName("com.android.settings", "com.android.settings.InstalledAppDetails");
                    localIntent.putExtra("com.android.settings.ApplicationPkgName", getPackageName());
                }
                context.startActivity(localIntent);
            }
        });
        builder.setNegativeButton("取消", new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialogInterface, int i) {
                dialogInterface.dismiss();
            }
        });

        //设置对话框是可取消的
        builder.setCancelable(true);
        final AlertDialog dialog = builder.create();
        dialog.show();
    }

PermissionHelper.java类如下：

/**
     * 手机是否开启位置服务，如果没有开启那么所有app将不能使用定位功能
     */
    public static boolean isLocServiceEnable(Context context) {
        LocationManager locationManager = (LocationManager) context.getSystemService(Context.LOCATION_SERVICE);
        boolean gps = locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER);
        boolean network = locationManager.isProviderEnabled(LocationManager.NETWORK_PROVIDER);
        if (gps || network) {
            return true;
        }
        return false;
    }

    /**
     * 检查权限列表
     *
     * @param context
     * @param op
     * 这个值被hide了，去AppOpsManager类源码找，如位置权限  AppOpsManager.OP_GPS==2
     * @param opString
     *   如判断定位权限 AppOpsManager.OPSTR_FINE_LOCATION
     * @return  @see 如果返回值 AppOpsManagerCompat.MODE_IGNORED 表示被禁用了

     */
    public static int checkOp(Context context, int op, String opString) {
        final int version = Build.VERSION.SDK_INT;
        if (version >= 19) {
            Object object = context.getSystemService(Context.APP_OPS_SERVICE);
//            Object object = context.getSystemService("appops");
            Class c = object.getClass();
            try {
                Class[] cArg = new Class[3];
                cArg[0] = int.class;
                cArg[1] = int.class;
                cArg[2] = String.class;
                Method lMethod = c.getDeclaredMethod("checkOp", cArg);
                return (Integer) lMethod.invoke(object, op, Binder.getCallingUid(), context.getPackageName());
            } catch (Exception e) {
                e.printStackTrace();
                if (Build.VERSION.SDK_INT >= 23) {
                    return AppOpsManagerCompat.noteOp(context, opString,context.getApplicationInfo().uid,
                            context.getPackageName());
                }

            }
        }
        return -1;
    }

附上一些AppOpsManage值
/** @hide No operation specified. */
    public static final int OP_NONE = -1;
    /** @hide Access to coarse location information. */
    public static final int OP_COARSE_LOCATION = 0;
    /** @hide Access to fine location information. */
    public static final int OP_FINE_LOCATION = 1;
    /** @hide Causing GPS to run. */
    public static final int OP_GPS = 2;
    /** @hide */
    public static final int OP_VIBRATE = 3;
    /** @hide */
    public static final int OP_READ_CONTACTS = 4;
    /** @hide */
    public static final int OP_WRITE_CONTACTS = 5;
    /** @hide */
    public static final int OP_READ_CALL_LOG = 6;
    /** @hide */
    public static final int OP_WRITE_CALL_LOG = 7;
    /** @hide */
    public static final int OP_READ_CALENDAR = 8;
    /** @hide */
    public static final int OP_WRITE_CALENDAR = 9;
    /** @hide */
    public static final int OP_WIFI_SCAN = 10;
    /** @hide */
    public static final int OP_POST_NOTIFICATION = 11;
    /** @hide */
    public static final int OP_NEIGHBORING_CELLS = 12;
    /** @hide */
    public static final int OP_CALL_PHONE = 13;
    /** @hide */
    public static final int OP_READ_SMS = 14;
    /** @hide */
    public static final int OP_WRITE_SMS = 15;
    /** @hide */
    public static final int OP_RECEIVE_SMS = 16;
    /** @hide */
    public static final int OP_RECEIVE_EMERGECY_SMS = 17;
    /** @hide */
    public static final int OP_RECEIVE_MMS = 18;
    /** @hide */
    public static final int OP_RECEIVE_WAP_PUSH = 19;
    /** @hide */
    public static final int OP_SEND_SMS = 20;
    /** @hide */
    public static final int OP_READ_ICC_SMS = 21;
    /** @hide */
    public static final int OP_WRITE_ICC_SMS = 22;
    /** @hide */
    public static final int OP_WRITE_SETTINGS = 23;
    /** @hide */
    public static final int OP_SYSTEM_ALERT_WINDOW = 24;

 public static final String OPSTR_FINE_LOCATION =
            "android:fine_location";
 /** Read previously received cell broadcast messages. */
    public static final String OPSTR_READ_CELL_BROADCASTS
            = "android:read_cell_broadcasts";
    /** Inject mock location into the system. */
    public static final String OPSTR_MOCK_LOCATION
            = "android:mock_location";
    /** Read external storage. */
    public static final String OPSTR_READ_EXTERNAL_STORAGE
            = "android:read_external_storage";
    /** Write external storage. */
    public static final String OPSTR_WRITE_EXTERNAL_STORAGE
            = "android:write_external_storage";
    /** Required to draw on top of other apps. */
    public static final String OPSTR_SYSTEM_ALERT_WINDOW
            = "android:system_alert_window";