我在做什么 ::我正在尝试使用代码
关闭活动if (getIntent().getBooleanExtra("LOGOUT", false))
{
SplashActivity.this.finish();
}
发生了什么 ::
SplashActivity.java
public class SplashActivity extends FragmentActivity {
/** Called when the activity is first created. */
JSONObject jsonobject;
JSONArray jsonarray;
private String Content;
DatabaseAdapter databaseHelper;
TextView txtSplashTitle,txtSplashDesc;
Cursor cursor;
LocationManager locationManager;
LocationListener locationListener;
public static String srcLatitude;
public static String srcLongitude;
public static String destLatitude;
public static String destLongitude;
public static String buffetOfferId;
private String tag_json_obj = "jobj_req";
private ProgressDialog pDialog;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if (getIntent().getBooleanExtra("LOGOUT", false))
{
SplashActivity.this.finish();
}
//Remove title bar
this.requestWindowFeature((int) Window.FEATURE_NO_TITLE);
//Remove notification bar
this.getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
//set content view AFTER ABOVE sequence (to avoid crash)
setContentView(R.layout.splash);
locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
if ( !locationManager.isProviderEnabled( LocationManager.GPS_PROVIDER ) ) {
showDialog();
}
//Delete database if it exists
SplashActivity.this.deleteDatabase(FindMyBuffetConstants.DATABASE_NAME);
databaseHelper = new DatabaseAdapter(this);
pDialog = new ProgressDialog(this);
pDialog.setMessage("Loading...");
pDialog.setCancelable(false);
JsonObjReqWithVolly();
}
private void JsonObjReqWithVolly() {
showProgressDialog();
JsonObjectRequest jsonObjReq = new JsonObjectRequest(Method.GET,
Const.URL_JSON_OBJECT, null,
new Response.Listener<JSONObject>() {
@Override
public void onResponse(JSONObject response) {
Log.d("VollyResponse", response.toString());
parseBuffetTableJSON(response);
distanceCalculation();
parseBuffetDetailsTableJSON(response);
hideProgressDialog();
startingNewActivity();
}
private void parseBuffetTableJSON(JSONObject response) {
//jsonobject = new JSONObject(response);
try {
jsonobject = response.getJSONObject("findmybuffet");
jsonarray = jsonobject.getJSONArray("buffets");
for (int i = 0; i < jsonarray.length(); i++) {
HashMap<String, String> map = new HashMap<String, String>();
jsonobject = jsonarray.getJSONObject(i);
// Retrive JSON Objects
map.put("buf_off_id", jsonobject.getString("buf_off_id"));
map.put("from_time", jsonobject.getString("from_time"));
map.put("to_time", jsonobject.getString("to_time"));
map.put("online_price", jsonobject.getString("online_price"));
map.put("reserved_price", jsonobject.getString("reserved_price"));
map.put("buf_image", jsonobject.getString("buf_image"));
map.put("res_name", jsonobject.getString("res_name"));
map.put("rating", jsonobject.getString("rating"));
map.put("latitude", jsonobject.getString("latitude"));
map.put("longitude", jsonobject.getString("longitude"));
map.put("buf_type_name", jsonobject.getString("buf_type_name"));
map.put("from_date", jsonobject.getString("from_date"));
map.put("to_date", jsonobject.getString("to_date"));
map.put("city_id", jsonobject.getString("city_id"));
map.put("city_name", jsonobject.getString("city_name"));
map.put("meal_type_id", jsonobject.getString("meal_type_id"));
map.put("meal_type_name", jsonobject.getString("meal_type_name"));
map.put("buf_desc", jsonobject.getString("buf_desc"));
map.put("distance", jsonobject.getString("distance"));
//Log.d("----$$$----", map.toString());
//Calling database
databaseHelper.addDataToBuffetTable(map);
}
} catch (JSONException e) {
e.printStackTrace();
}
}
private void parseBuffetDetailsTableJSON(JSONObject response) {
//jsonobject = new JSONObject(response);
try {
jsonobject = response.getJSONObject("findmybuffet");
jsonarray = jsonobject.getJSONArray("buf_meal_det");
for (int i = 0; i < jsonarray.length(); i++) {
HashMap<String, String> map = new HashMap<String, String>();
jsonobject = jsonarray.getJSONObject(i);
// Retrive JSON Objects
map.put("buf_off_id", jsonobject.getString("buf_off_id"));
map.put("menu_type_id", jsonobject.getString("menu_type_id"));
map.put("menu_type_name", jsonobject.getString("menu_type_name"));
map.put("cuisine_type_name", jsonobject.getString("cuisine_type_name"));
map.put("item_name", jsonobject.getString("item_name"));
//Log.d("----$$$----", map.toString());
//Calling database
databaseHelper.addDataToBuffetDetailsTable(map);
}
} catch (JSONException e) {
e.printStackTrace();
}
}
private void distanceCalculation() {
String myQuery="SELECT * FROM buffets";
Cursor cursor = (Cursor) databaseHelper.getAllDataFrmBuffetTable(myQuery);
cursor.moveToFirst();
if(cursor.moveToFirst()){
do{
buffetOfferId=cursor.getString(cursor.getColumnIndex(cursor.getColumnName(1)));
destLatitude=cursor.getString(cursor.getColumnIndex(cursor.getColumnName(9)));
destLongitude=cursor.getString(cursor.getColumnIndex(cursor.getColumnName(10)));
srcLatitude="12.918286";
srcLongitude="77.669493";
Log.d("---Source------", destLatitude+","+destLongitude);
Log.d("---Destination-", srcLatitude+","+srcLongitude);
float CalculateDistance=CalculateDistance(srcLatitude,srcLongitude,destLatitude,destLongitude);
Log.d("---Result---", CalculateDistance+"");
//round float to nearest whole number and then convert into double and converting to kilometers
double CalculateDistanceRounded = Math.round(CalculateDistance)/1000;
databaseHelper.updateSqLiteDistance(CalculateDistanceRounded,buffetOfferId);
}while(cursor.moveToNext());
}
}
private float CalculateDistance(String srcLatitude,
String srcLongitude, String destLatitude, String destLongitude) {
Location locationA = new Location("point A");
//Convert from string to double and then process
locationA.setLatitude(Double.parseDouble(destLatitude));
locationA.setLongitude(Double.parseDouble(destLongitude));
Location locationB = new Location("point B");
locationB.setLatitude(Double.parseDouble(srcLatitude));
locationB.setLongitude(Double.parseDouble(srcLongitude));
return locationA.distanceTo(locationB);
}
private void startingNewActivity() {
Intent intent=new Intent(SplashActivity.this,MainActivity.class);
startActivity(intent);
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
VolleyLog.d("VollyResponse", "Error: " + error.getMessage());
hideProgressDialog();
}
}) {
};
// Adding request to request queue
AppController.getInstance().addToRequestQueue(jsonObjReq,tag_json_obj);
// Cancelling request
// ApplicationController.getInstance().getRequestQueue().cancelAll(tag_json_obj);
}
@Override
protected void onStart() {
// TODO Auto-generated method stub
super.onStart();
//Setting fonts for textviews
checkForGpsAndTurnItOn();
}
public void showDialog(){
//GPS-Dialog
GpsEnablingDialog gpsAlert=new GpsEnablingDialog();
gpsAlert.show(getSupportFragmentManager(), "GpsAlert_Tag");
}
private void checkForGpsAndTurnItOn() {
locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
if ( !locationManager.isProviderEnabled( LocationManager.GPS_PROVIDER ) ) {
Log.d("My-Log-Msg","$-before-showDialog-$");
showGpsDialog();
Log.d("My-Log-Msg","$-after-showDialog-$");
}
}
public void showGpsDialog(){
//GPS-Dialog
GpsEnablingDialog gpsAlert;
try {
gpsAlert = new GpsEnablingDialog();
gpsAlert.show(getSupportFragmentManager(), "GpsAlert_Tag");
} catch (Exception e) {
// TODO Auto-generated catch block
Log.d("My-Log-Msg",e.toString());
e.printStackTrace();
}
}
private void showProgressDialog() {
if (!pDialog.isShowing())
pDialog.show();
}
private void hideProgressDialog() {
if (pDialog.isShowing())
pDialog.hide();
}
}
{编辑}
Intent intent = new Intent(getActivity(), SplashActivity.class);
intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK);
intent.putExtra("LOGOUT", true);
startActivity(intent);
答案 0 :(得分：0)
你是什么意思＆＃34;什么都不做＆＃34;？你期望发生什么？
finish()是异步的 - 它将请求传递给ActivityManager，后者将依次触发整个结束流程（完成堆栈中较新的活动 - ＆gt; onPause() - ＆gt; onStop() - ＆gt; onSaveInstance() .... - ＆gt; onFinish()）。它不会突然杀死你的应用程序。
这是一件好事。
答案 1 :(得分：0)
尝试将getBoolean方法与Intent一起使用：
if ( getIntent().getExtras().getBoolean("LOGOUT") ) {
SplashActivity.this.finish();
} else {
Log.v("Boolean LOGOUT","The value is false...");
}
另外，启动{{1}时，请确保boolean的值不是＆＃34;为空＆＃34; （应该是true） }。如果这样可以解决问题，请告诉我。