判断GPS、网络是否开启

1.判断GPS打开与否，没有打开则打开GPS

private void initGPS(Context context) {

    LocationManager locationManager = (LocationManager) context

            .getSystemService(Context.LOCATION_SERVICE);

    // 判断GPS模块是否开启，如果没有则开启

    if (!locationManager.isProviderEnabled(android.location.LocationManager.GPS_PROVIDER)) {

        AlertDialog.Builder dialog = new AlertDialog.Builder(this);

        dialog.setMessage("请打开GPS");

        dialog.setPositiveButton("确定", new android.content.DialogInterface.OnClickListener()

                {

                    @Override

                    public void onClick(DialogInterface arg0, int arg1) {

                        // 转到手机设置界面，用户设置GPS

                        Intent intent = new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS);

                        startActivityForResult(intent, 0); // 设置完成后返回到原来的界面

                    }

                });

        dialog.setNeutralButton("取消", new android.content.DialogInterface.OnClickListener() {

            @Override

            public void onClick(DialogInterface arg0, int arg1) {

                arg0.dismiss();

            }

        });

        dialog.show();

    }

}

判断网络是否开启

private void initInternet(Context context) {

    ConnectivityManager cm = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);

    boolean isConnect = cm.getActiveNetworkInfo().isAvailable();

    if (!isConnect) {

        AlertDialog.Builder dialog = new AlertDialog.Builder(this);

        dialog.setMessage("请打开网络或连接wifi");

        dialog.setPositiveButton("确定", new android.content.DialogInterface.OnClickListener()

        {

            @Override

            public void onClick(DialogInterface arg0, int arg1) {

                // 转到手机设置界面，用户设置GPS

                Intent intent = new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS);

                startActivityForResult(intent, 0); // 设置完成后返回到原来的界面

            }

        });

        dialog.setNeutralButton("取消", new android.content.DialogInterface.OnClickListener() {

            @Override

            public void onClick(DialogInterface arg0, int arg1) {

                arg0.dismiss();

            }

        });

        dialog.show();

    }

}