Android获取定位权限，手动打开GPS

获取定位权限，并且在没有打开GPS的时候引导用户打开手机GPS定位。
超级简单的

  private Button button;

    private int GPS_REQUEST_CODE = 1;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        button = findViewById(R.id.open_gps);
        button.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                openGPSSEtting();
            }
        });
    }

    private boolean checkGpsIsOpen() {
        boolean isOpen;
        LocationManager locationManager = (LocationManager) this.getSystemService(Context.LOCATION_SERVICE);
        isOpen = locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER);
        return isOpen;
    }

    private void openGPSSEtting() {
        if (checkGpsIsOpen()){
            Toast.makeText(this, "true", Toast.LENGTH_SHORT).show();
        }else {
            new AlertDialog.Builder(this).setTitle("open GPS")
                    .setMessage("go to open")
                    //  取消选项
                    .setNegativeButton("cancel",new DialogInterface.OnClickListener(){

                        @Override
                        public void onClick(DialogInterface dialogInterface, int i) {
                            Toast.makeText(MainActivity.this, "close", Toast.LENGTH_SHORT).show();
                            // 关闭dialog
                            dialogInterface.dismiss();
                        }
                    })
                    //  确认选项
                    .setPositiveButton("setting", new DialogInterface.OnClickListener() {
                        @Override
                        public void onClick(DialogInterface dialogInterface, int i) {
                          //跳转到手机原生设置页面
                            Intent intent = new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS);
                            startActivityForResult(intent,GPS_REQUEST_CODE);
                        }
                    })
                    .setCancelable(false)
                    .show();
        }
    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        if (requestCode ==GPS_REQUEST_CODE){
            openGPSSEtting();
        }
    }