安卓6.0以上动态权限问题

//定义   
 private AlertDialog dialog;
    private String[] permissions = {Manifest.permission.ACCESS_COARSE_LOCATION, Manifest.permission.READ_EXTERNAL_STORAGE, Manifest.permission.READ_PHONE_STATE};
//调用
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
            // 检查该权限是否已经获取
            int i = ContextCompat.checkSelfPermission(this, permissions[0]);
            int f = ContextCompat.checkSelfPermission(this, permissions[1]);
            int p = ContextCompat.checkSelfPermission(this, permissions[2]);
            // 权限是否已经 授权 GRANTED---授权  DINIED---拒绝
            if (i != PackageManager.PERMISSION_GRANTED) {
                // 如果没有授予该权限,就去提示用户请求
                showDialogTipUserRequestPermission();
            } else if (f != PackageManager.PERMISSION_GRANTED) {
                showDialogTipUserRequestPermissionf();
            }else if(p!=PackageManager.PERMISSION_GRANTED){
                showDialogTipUserRequestPermissionp();
            }
        }

//使用

 private void showDialogTipUserRequestPermission() {
        new AlertDialog.Builder(this)
                .setTitle("系统的服务信息权限不可用")
                .setMessage("由于需要获取系统的服务信息,为你显示基站信息;\n否则,您将无法正常使用本程序")
                .setPositiveButton("立即开启", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        startRequestPermission();
                    }
                })
                .setNegativeButton("取消", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        finish();
                    }
                }).setCancelable(false).show();
    }

    private void showDialogTipUserRequestPermissionf() {
        new AlertDialog.Builder(this)
                .setTitle("sd卡储存权限不可用")
                .setMessage("由于需要sd卡储存功能;\n否则,您将无法正常使用本程序")
                .setPositiveButton("立即开启", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        startRequestPermission();
                    }
                })
                .setNegativeButton("取消", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        finish();
                    }
                }).setCancelable(false).show();
    }
    private void showDialogTipUserRequestPermissionp() {
        new AlertDialog.Builder(this)
                .setTitle("系统的服务信息权限不可用")
                .setMessage("由于需要获取系统的服务信息,为你显示基站信息;\n否则,您将无法正常使用本程序")
                .setPositiveButton("立即开启", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        startRequestPermission();
                    }
                })
                .setNegativeButton("取消", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        finish();
                    }
                }).setCancelable(false).show();
    }

    // 开始提交请求权限
    private void startRequestPermission() {
        ActivityCompat.requestPermissions(this, permissions, 321);
    }

    // 用户权限 申请 的回调方法
    @Override
    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
        super.onRequestPermissionsResult(requestCode, permissions, grantResults);

        if (requestCode == 321) {
            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
                if (grantResults[0] != PackageManager.PERMISSION_GRANTED) {
                    // 判断用户是否 点击了不再提醒。(检测该权限是否还可以申请)
                    boolean b = shouldShowRequestPermissionRationale(permissions[0]);
                    if (!b) {
                        // 用户还是想用我的 APP 的
                        // 提示用户去应用设置界面手动开启权限
                        showDialogTipUserGoToAppSettting();
                    } else
                        finish();
                } else {
                    Toast.makeText(this, "权限获取成功", Toast.LENGTH_SHORT).show();
                }
            }
        }
    }

    // 提示用户去应用设置界面手动开启权限

    private void showDialogTipUserGoToAppSettting() {

        dialog = new AlertDialog.Builder(this)
                .setTitle("系统的服务信息权限不可用")
                .setMessage("请在-应用设置-权限-中,允许使用系统的服务信息权限")
                .setPositiveButton("立即开启", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        // 跳转到应用设置界面
                        goToAppSetting();
                    }
                })
                .setNegativeButton("取消", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        finish();
                    }
                }).setCancelable(false).show();
    }

    // 跳转到当前应用的设置界面
    private void goToAppSetting() {
        Intent intent = new Intent();

        intent.setAction(Settings.ACTION_APPLICATION_DETAILS_SETTINGS);
        Uri uri = Uri.fromParts("package", getPackageName(), null);
        intent.setData(uri);

        startActivityForResult(intent, 123);
    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        if (requestCode == 123) {

            if (android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
                // 检查该权限是否已经获取
                int i = ContextCompat.checkSelfPermission(this, permissions[0]);
                // 权限是否已经 授权 GRANTED---授权  DINIED---拒绝
                if (i != PackageManager.PERMISSION_GRANTED) {
                    // 提示用户应该去应用设置界面手动开启权限
                    showDialogTipUserGoToAppSettting();
                } else {
                    if (dialog != null && dialog.isShowing()) {
                        dialog.dismiss();
                    }
                    Toast.makeText(this, "权限获取成功", Toast.LENGTH_SHORT).show();
                }
            }
        }
    }

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