TourGuide | Android library that aims to provide an easy way | Android library
kandi X-RAY | TourGuide Summary
kandi X-RAY | TourGuide Summary
TourGuide is an Android library. It lets you add pointer, overlay and tooltip easily, guiding users on how to use your app. Refer to the example below(this is a trivial example for demo purpose):.
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Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of TourGuide
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QUESTION
Hi I have a small android app that demonstrates 2 fragments in 1 activity, it should just be a simple code but I am getting a null pointer exception. The app is just a listview in 1 fragment, and an edittext in the other and it connects the main activity. My book is from 2016 so I think some of these things were depreciated that why I am having the error. The text should change in the other fragment after pressing the listview options. Also I am supposed to save the instance state but I haven't got that far yet. I believe the error is from the listener. OnFragmentInteractionListener that it points to null, I can comment the line. Thanks. Code below:
...ANSWER
Answered 2022-Jan-29 at 09:04if you want to use findById in fragment , you have to add the "view" before them , to add them to view which your returning
in your onCreateView change :
QUESTION
fragment_text.xml
TextFragment.java
package com.example.tourguide;
import android.content.res.Resources;
import android.net.Uri;
import android.os.Bundle;
import androidx.fragment.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.TextView;
/**
* A simple {@link Fragment} subclass.
* Use the {@link TextFragment#newInstance} factory method to
* create an instance of this fragment.
*/
public class TextFragment extends Fragment
{
TextView textView;
// TODO: Rename parameter arguments, choose names that match
// the fragment initialization parameters, e.g. ARG_ITEM_NUMBER
private static final String ARG_PARAM1 = "param1";
private static final String ARG_PARAM2 = "param2";
// TODO: Rename and change types of parameters
private String mParam1;
private String mParam2;
public TextFragment() {
// Required empty public constructor
}
/**
* Use this factory method to create a new instance of
* this fragment using the provided parameters.
*
* @param param1 Parameter 1.
* @param param2 Parameter 2.
* @return A new instance of fragment TextFragment.
*/
// TODO: Rename and change types and number of parameters
public static TextFragment newInstance(String param1, String param2)
{
TextFragment fragment = new TextFragment();
Bundle args = new Bundle();
args.putString(ARG_PARAM1, param1);
args.putString(ARG_PARAM2, param2);
fragment.setArguments(args);
return fragment;
}
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
if (getArguments() != null)
{
mParam1 = getArguments().getString(ARG_PARAM1);
mParam2 = getArguments().getString(ARG_PARAM2);
}
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup
container,
Bundle savedInstanceState)
{
View view = inflater.inflate(R.layout.fragment_text, container,
false);
textView = view.findViewById(R.id.textView1);
return view;
}
public void updateTextView(int index)
{
if(index==0)
{
textView.setText(getResources().getString(R.string.set_Richmond));
}
else if(index==1)
{
textView.setText(getResources().getString(R.string.set_Vancouver));
}
else if(index==2)
{
textView.setText(getResources().getString(R.string.set_Toronto));
}
else if(index==3)
{
textView.setText(getResources().getString(R.string.set_New_West));
}
else if(index==4)
{
textView.setText(getResources().getString(R.string.set_Montreal));
}
else if(index==5)
{
textView.setText(getResources().getString(R.string.set_Aldergrove));
}
}
public interface OnFragmentInteractionListener
{
public void onFragmentInteraction(int index);
}
}
fragment_list.xml
package com.example.tourguide;
import android.content.res.Resources;
import android.net.Uri;
import android.os.Bundle;
import androidx.fragment.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.AdapterView;
import android.widget.ListView;
/**
* A simple {@link Fragment} subclass.
* Use the {@link ListFragment#newInstance} factory method to
* create an instance of this fragment.
*/
public class ListFragment extends Fragment implements
AdapterView.OnItemClickListener
{
ListView listView;
String[] array;
String listStr;
private OnFragmentInteractionListener listener;
// TODO: Rename parameter arguments, choose names that match
// the fragment initialization parameters, e.g. ARG_ITEM_NUMBER
private static final String ARG_PARAM1 = "param1";
private static final String ARG_PARAM2 = "param2";
// TODO: Rename and change types of parameters
private String mParam1;
private String mParam2;
public ListFragment() {
// Required empty public constructor
}
/**
* Use this factory method to create a new instance of
* this fragment using the provided parameters.
*
* @param param1 Parameter 1.
* @param param2 Parameter 2.
* @return A new instance of fragment ListFragment.
*/
// TODO: Rename and change types and number of parameters
public static ListFragment newInstance(String param1, String param2)
{
ListFragment fragment = new ListFragment();
Bundle args = new Bundle();
args.putString(ARG_PARAM1, param1);
args.putString(ARG_PARAM2, param2);
fragment.setArguments(args);
return fragment;
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if (getArguments() != null)
{
mParam1 = getArguments().getString(ARG_PARAM1);
mParam2 = getArguments().getString(ARG_PARAM2);
}
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup
container, Bundle savedInstanceState)
{
View view = inflater.inflate(R.layout.fragment_list, container,
false);
listView = view.findViewById(R.id.listView1);
array =
getResources().getStringArray(R.array.string_array_cities);
ArrayAdapter adapter = new ArrayAdapter
(getActivity(), android.R.layout.simple_list_item_1, array);
listView.setAdapter(adapter);
listView.setOnItemClickListener(this);
return view;
}
@Override
public void onItemClick(AdapterView adapterView, View view, int
index, long id)
{
if(listener != null)
{
listener.onFragmentInteraction(index); //pass index of array
}
}
public interface OnFragmentInteractionListener
{
public void onFragmentInteraction(int index);
}
}
activity_main.xml
package com.example.tourguide;
import androidx.appcompat.app.AppCompatActivity;
import androidx.fragment.app.FragmentManager;
import android.app.Fragment;
import android.net.Uri;
import android.os.Bundle;
public class MainActivity extends AppCompatActivity implements
TextFragment.OnFragmentInteractionListener,
ListFragment.OnFragmentInteractionListener
{
@Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
@Override
public void onFragmentInteraction(int index)
{
FragmentManager manager = getSupportFragmentManager();
TextFragment textFragment =
(TextFragment)manager.findFragmentById(R.id.fragmentContainerView2_text);
textFragment.updateTextView(index);
}
}
strings.xml
Tour Guide
Hello blank fragment
default
Welcome to the Tour Guide App
Richmond is a quite city with many nice
hidden scenic places. A small town named Steveston is found on the
south
west part
of the city and is well known for having good seafood and nice
places to visit like Garry Point and the west and south dykes.
Vancouver is one of Canadas biggest
cities and has a lot to offer like the malls and many towers,
beaches,
parks.
Toronto is Canadas biggest city on the
east coast and home to the TSX and Maple Leafs.
New West is a city east of Vancouver but
close by and has nice parks and ice rinks like Moody Park and Queens
Park.
Queens Park home of the New West Royals.
Monteal is famous for their smoked meat
and they speak french.
Aldergrove is a quite town and is east
of Langley not too far and is a nice place.
Richmond
Vancouver
Toronto
New West
Montreal
Aldergrove
...ANSWER
Answered 2022-Jan-28 at 10:46Everything seems okay only a few lines of code need to be changed.
Inside TextFragment you need to remove textView initialization from onCreate(...){} method to onCreateView(....) like as follows:
QUESTION
when i change the background of any View to some drawable, it is colored with color primary (in my case #FF6200EE), and it won't change.
for example, when i change a background of a button, the background color sets automatically to color primary and it won't change even after setting backgroudTint
...ANSWER
Answered 2021-Jan-03 at 12:23First, you are using MaterialComponents Theme and I suggest that you use Material Components too. Instead of Button, you can use:
QUESTION
My Project suddenly cannot build APK, with error e: Supertypes of the following classes cannot be resolved. Please make sure you have the required dependencies in the classpath: class com.chad.library.adapter.base.BaseQuickAdapter, unresolved supertypes: androidx.recyclerview.widget.RecyclerView.Adapter class com.chad.library.adapter.base.BaseViewHolder, unresolved supertypes: androidx.recyclerview.widget.RecyclerView.ViewHolder
the project is running fine when running or build on debug, but error occured when building android app bundle or APK.
my app gradle
...ANSWER
Answered 2020-Oct-15 at 17:09Add this line of code to your build.gradle file where you do have classpath:
maven { url "https://jitpack.io" }
so it'll look like this
`allprojects {
QUESTION
I have an android app that has two fragments that pass data from fragmentA to fragmentB. I can load all the data correctly but when I change the screen orientation it all reloads. I have set up the onSaveInstanceState
and onViewStateRestored
methods in the fragment I want to keep the state in, but nothing stays when the screen orientation changes.
The main problem that needs to be fixed is when text is loaded into the TextView in FragmentB - it needs to stay there when the screen orientation is changed.
MainActivity.Java
...ANSWER
Answered 2020-Mar-12 at 21:15They are saved, but you are replacing them. Use this
QUESTION
Just started learning SAS and am going through a textbook where a table is created using the following code.
...ANSWER
Answered 2020-Feb-27 at 11:50Your column pointers are not correct. See if this helps you
QUESTION
I created a table using the select statement as written below:
...ANSWER
Answered 2020-Feb-23 at 13:56You need to create a VIEW, not a TABLE. See Oracle CREATE VIEW.
For example:
QUESTION
i am tried to run my project and this error still appearing
...ANSWER
Answered 2020-Feb-04 at 09:16Look at the Text Widget, hope it helps. Too lazy to read the whole thing carefully. By the way, you can replace a == null ? 'whatever' : a
with a ?? 'whatever'
. ??
is equal with if null
QUESTION
I have implemented two column checkbox. But when check box text are large, it goes out of screen layout. I have attached screenshot as reference . How to restrict them to appear as multiline text and fixed inside Mobile screen. Here is my code. I have added two columns of table inside the tablel row where I have inserted the checkbox. But the text goes outside and don't fit in same line or I want to break into two lines but should stay inside screen.
Any help is appreciated. Thanks in advance.
...ANSWER
Answered 2020-Jan-27 at 07:20You can use the "layout_span" property in checkbox as per your requirement :
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