我的应用程序能够在本地主机中存储注册令牌，但是无法将注册令牌存储在在线远程MySQL数据库中。
该令牌首先保存在SharedPreferences中，然后存储到数据库服务器，但是它仅在本地计算机上工作，每次用户安装应用程序时，如何将其存储在远程数据库服务器中。
public class MainActivity extends AppCompatActivity {
private WebView webView;
private ProgressDialog dialog;
private BroadcastReceiver mRegistrationBroadcastReciever;
private final String CHANNEL_ID="notificcation";
String app_server_url="xxxxxxxxxxxxxxxxxxxxxxxx";
@Override
public void onBackPressed() {
AlertDialog.Builder builder=new AlertDialog.Builder(this);
if(webView.canGoBack()){
webView.goBack();
}else{
builder.setTitle("Do you want to leave the TuneMe App?");
builder.setMessage("Are you sure?");
builder.setPositiveButton("Exit", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
finish();
}
});
builder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
}
});
AlertDialog dialog=builder.show();
}
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
SharedPreferences sharedPreferences=getApplicationContext().getSharedPreferences(getString(R.string.FCM_PREF), Context.MODE_PRIVATE);
final String token=sharedPreferences.getString(getString(R.string.FCM_TOKEN),"");
StringRequest stringRequest=new StringRequest(Request.Method.POST, app_server_url, new Response.Listener<String>() {
@Override
public void onResponse(String response) {
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
}
})
{
@Override
protected Map<String, String> getParams() throws AuthFailureError {
Map<String,String>params=new HashMap<String,String>();
params.put("fcm_token",token);
return params;
}
};
MySingleton.getmInstance(MainActivity.this).addToRequestque(stringRequest);
webView=(WebView)findViewById(R.id.webView);
webView.getSettings().setJavaScriptEnabled(true);
webView.setWebChromeClient(new WebChromeClient());
webView.loadUrl("default_website");
webView.setWebViewClient(new WebViewClient(){
@Override
public void onPageFinished(WebView view, String url) {
if(dialog.isShowing())
dialog.dismiss();
}
});
mRegistrationBroadcastReciever=new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
if(intent.getAction().equals(Config.STR_PUSH))
{
String message=intent.getStringExtra(Config.STR_MESSAGE);
showNotification("TuneMe Article",message);
}
}
};
onNewIntent(getIntent());
}
@Override
protected void onNewIntent(Intent intent) {
dialog=new ProgressDialog(this);
if(intent.getStringExtra(Config.STR_KEY)!=null)
{
dialog.show();
dialog.setMessage("Please Wait");
webView.loadUrl(intent.getStringExtra(Config.STR_KEY));
}
}
private void showNotification(String title, String message) {
notificationChannel();
Bitmap picture =
BitmapFactory.decodeResource(getResources(),R.mipmap.app_launcher);
Intent intent =new Intent(getBaseContext(),MainActivity.class);
intent.putExtra(Config.STR_KEY,message);
intent.setFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP);
PendingIntent contentIntent=PendingIntent.getActivity(getBaseContext(),0,intent,PendingIntent.FLAG_UPDATE_CURRENT);
NotificationCompat.Builder builder=new NotificationCompat.Builder(getBaseContext(),CHANNEL_ID);
builder.setAutoCancel(true)
.setWhen(System.currentTimeMillis())
.setDefaults(Notification.DEFAULT_ALL)
.setSmallIcon(R.drawable.ic_sms_black_24dp)
.setContentTitle(title)
.setContentText(message)
.setLargeIcon(picture)
.setPriority(NotificationCompat.PRIORITY_HIGH)
.setContentIntent(contentIntent);
NotificationManager notificationManager = (NotificationManager)getBaseContext().getSystemService(Context.NOTIFICATION_SERVICE);
notificationManager.notify(1,builder.build());
}
private void notificationChannel (){
if(Build.VERSION.SDK_INT>=Build.VERSION_CODES.O)
{
CharSequence name="Personal Notificaiton";
String description="include";
int importance=NotificationManager.IMPORTANCE_DEFAULT;
NotificationChannel notificationChannel=new NotificationChannel(CHANNEL_ID,name,importance);
notificationChannel.setDescription(description);
NotificationManager notificationManager=(NotificationManager)getSystemService(NOTIFICATION_SERVICE);
notificationManager.createNotificationChannel(notificationChannel);
}
}
@Override
protected void onPause() {
LocalBroadcastManager.getInstance（this）.unregisterReceiver（mRegistrationBroadcastReciever）; super.onPause（）; }
@Override
protected void onResume() {
super.onResume();
LocalBroadcastManager.getInstance（this）.registerReceiver（mRegistrationBroadcastReciever，new IntentFilter（“ registration Complete”））;
LocalBroadcastManager.getInstance（this）.registerReceiver（mRegistrationBroadcastReciever，new IntentFilter（Config.STR_PUSH））; }
}