Database Develop

[Q] connect to bluetooth keyboard from android application problems

I wrote a simple application to connect to a bluetooth mini keyboard but am having trouble with the BluetoothDevice.connect() call.
it gives discovery service failed. I have no problem using the bluetooth pairing and connect from the bluetooth settings menu. The same code works with a bluesnap serial to bluetooth device.
Am I missing something obvious?
I'm on galaxy tab froyo.
The code is:
Code:
package test.com;
import java.io.IOException;
import java.io.InputStream;
import java.lang.reflect.Method;
import java.util.Set;
import java.util.UUID;
//import test.com.connect.ClientConnectThread;
import android.app.Activity;
import android.os.Bundle;
import android.os.Handler;
import android.view.View;
import android.widget.Toast;
import android.bluetooth.*;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.SharedPreferences;
import android.content.SharedPreferences.Editor;
public class connect extends Activity {
static final int ALERT_DIALOG_ID = 1;
private BtReceiver btReceiver;
private BluetoothAdapter btAdapter;
private final Handler handler = new Handler();
private static final UUID SIMPLE_BT_APP_UUID = UUID.fromString("00001101-0000-1000-8000-00805F9B34FB");
private ClientConnectThread clientConnectThread;
private BluetoothDataCommThread bluetoothDataCommThread;
private BluetoothDevice remoteDevice;
private BluetoothSocket activeBluetoothSocket;
private final String deviceAddress="98:9A:10:12:03:6E";
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
btAdapter=BluetoothAdapter.getDefaultAdapter();
if(btAdapter==null)
{
Toast.makeText(getApplicationContext(), "No Bluetooth Available",Toast.LENGTH_LONG ).show();
}else
{
if(!btAdapter.isEnabled())
{
Intent enableBtIntent=new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
//REQUEST_ENABLE_BT is supposed to be 2 so
startActivityForResult(enableBtIntent, 2);
}
// we need a broadcast receiver now
btReceiver = new BtReceiver();
// register for state change broadcast events
IntentFilter stateChangedFilter = new IntentFilter(BluetoothAdapter.ACTION_STATE_CHANGED);
registerReceiver(btReceiver, stateChangedFilter);
// register for discovery events
IntentFilter actionFoundFilter = new IntentFilter(BluetoothDevice.ACTION_FOUND);
registerReceiver(btReceiver, actionFoundFilter);
// check current state
int currentState = btAdapter.getState();
if (currentState == BluetoothAdapter.STATE_ON) {
findDevices();
}
}
}
public void findDevicesHandler(View view){
int currentState = btAdapter.getState();
if (currentState == BluetoothAdapter.STATE_ON) {
Toast.makeText(getApplicationContext(), "Finding devices",Toast.LENGTH_LONG ).show();
findDevices();
}
else
{
Toast.makeText(getApplicationContext(), "Adapter is off",Toast.LENGTH_LONG ).show();
}
}
protected void onActivityResult(int request,int result,Intent data)
{
if(result==RESULT_OK)
{
Toast.makeText(getApplicationContext(), "TURNING ON BLUETOOTH",Toast.LENGTH_LONG ).show();
}
}
public class BtReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
if (action.equals(BluetoothAdapter.ACTION_STATE_CHANGED)) {
setStatus("Broadcast: Got ACTION_STATE_CHANGED");
int currentState = intent.getIntExtra(BluetoothAdapter.EXTRA_STATE, BluetoothAdapter.STATE_OFF);
if (currentState == BluetoothAdapter.STATE_ON) {
findDevices();
}
} else if (action.equals(BluetoothDevice.ACTION_FOUND)) {
setStatus("Broadcast: Got ACTION_FOUND");
BluetoothDevice foundDevice = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
setStatus("Device: " + foundDevice.getName() + "@" + foundDevice.getAddress());
remoteDevice=foundDevice;
if(remoteDevice.getAddress().equals(deviceAddress))
{
takeAction();
}
}
}
}
private void setStatus(String string){
Toast.makeText(getApplicationContext(), string,Toast.LENGTH_LONG ).show();
}
private void findDevices() {
Set<BluetoothDevice> pairedDevices = btAdapter.getBondedDevices();
for (BluetoothDevice pairedDevice : pairedDevices) {
if (pairedDevice.getAddress().equals(deviceAddress)) {
setStatus("Found device: " + pairedDevice.getName() + "@" + deviceAddress);
remoteDevice = pairedDevice;
}
}
if (remoteDevice == null) {
setStatus("Starting discovery...");
if (btAdapter.startDiscovery()) {
setStatus("Discovery started...");
}
}
else
{
setStatus("Remote Device Address:"+remoteDevice.getAddress());
takeAction();
}
}
private void takeAction()
{
Toast.makeText(getApplicationContext(), "GETTING READY",Toast.LENGTH_LONG).show();
clientConnectThread = new ClientConnectThread(remoteDevice);
clientConnectThread.run();
}
@Override
protected void onDestroy() {
if (clientConnectThread != null) {
clientConnectThread.stopConnecting();
}
if (bluetoothDataCommThread != null) {
bluetoothDataCommThread.disconnect();
}
if (activeBluetoothSocket != null) {
try {
activeBluetoothSocket.close();
} catch (IOException e) {
//Log.e(DEBUG_TAG, "Failed to close socket", e);
Toast.makeText(getApplicationContext(), e.toString(),Toast.LENGTH_LONG ).show();
}
}
btAdapter.cancelDiscovery();
this.unregisterReceiver(btReceiver);
super.onDestroy();
}
public void doStartDataCommThread() {
if (activeBluetoothSocket == null) {
setStatus("Can't start datacomm");
} else {
setStatus("Data comm thread starting");
bluetoothDataCommThread = new BluetoothDataCommThread(activeBluetoothSocket);
bluetoothDataCommThread.start();
}
}
private void setLastUsedRemoteBTDevice(String name) {
SharedPreferences prefs = getPreferences(MODE_PRIVATE);
Editor edit = prefs.edit();
edit.putString("LAST_REMOTE_DEVICE_ADDRESS", name);
edit.commit();
}
// client thread: used to make a synchronous connect call to a device
private class ClientConnectThread extends Thread {
private final BluetoothDevice remoteDevice;
private BluetoothSocket clientSocket;
public ClientConnectThread(BluetoothDevice remoteDevice) {
this.remoteDevice = remoteDevice;
clientSocket = null;
}
public void run() {
boolean success = false;
//success=true;
try {
btAdapter.cancelDiscovery();
//Method m = remoteDevice.getClass().getMethod("createRfcommSocket",new Class[] { int.class});
//Method m = remoteDevice.getClass().getMethod("createScoSocket",new Class[] { int.class});
//Method m = remoteDevice.getClass().getMethod("createInsecureRfcommSocket",new Class[] { int.class});
//clientSocket=(BluetoothSocket)m.invoke(remoteDevice,0);
clientSocket = remoteDevice.createRfcommSocketToServiceRecord(SIMPLE_BT_APP_UUID);
clientSocket.connect();
success = true;
} catch (IOException e) {
Toast.makeText(getApplicationContext(),"CONNECT:"+ e.toString(),Toast.LENGTH_LONG ).show();
try {
clientSocket.close();
} catch (IOException e1) {
Toast.makeText(getApplicationContext(),"CLOSE:"+ e.toString(),Toast.LENGTH_LONG ).show();
}
} catch (SecurityException e) {
Toast.makeText(getApplicationContext(),"CONNECT:"+ e.toString(),Toast.LENGTH_LONG ).show();
} catch (NoSuchMethodException e) {
Toast.makeText(getApplicationContext(),"CONNECT:"+ e.toString(),Toast.LENGTH_LONG ).show();
} catch (IllegalArgumentException e) {
Toast.makeText(getApplicationContext(),"CONNECT:"+ e.toString(),Toast.LENGTH_LONG ).show();
} /*catch (IllegalAccessException e) {
// TODO Auto-generated catch block
Toast.makeText(getApplicationContext(),"CONNECT:"+ e.toString(),Toast.LENGTH_LONG ).show();
} catch (InvocationTargetException e) {
// TODO Auto-generated catch block
Toast.makeText(getApplicationContext(),"CONNECT:"+ e.toString(),Toast.LENGTH_LONG ).show();
}*/
final String status;
if (success) {
status = "Connected to remote device";
activeBluetoothSocket = clientSocket;
// we don't need to keep listening
//serverListenThread.stopListening();
} else {
status = "Failed to connect to remote device";
activeBluetoothSocket = null;
}
handler.post(new Runnable() {
public void run() {
setStatus(status);
setLastUsedRemoteBTDevice(remoteDevice.getAddress());
doStartDataCommThread();
}
});
}
public void stopConnecting() {
try {
clientSocket.close();
} catch (Exception e) {
//Log.e(DEBUG_TAG, "Failed to stop connecting", e);
Toast.makeText(getApplicationContext(), "CLOSE2:"+e.toString(),Toast.LENGTH_LONG ).show();
}
}
}
private class BluetoothDataCommThread extends Thread {
private final BluetoothSocket dataSocket;
private final InputStream inData;
public BluetoothDataCommThread(BluetoothSocket dataSocket) {
this.dataSocket = dataSocket;
InputStream inData = null;
try {
inData = dataSocket.getInputStream();
} catch (IOException e) {
Toast.makeText(getApplicationContext(), e.toString(),Toast.LENGTH_LONG ).show();
}
this.inData = inData;
}
public void run() {
byte[] readBuffer = new byte[64];
int readSize = 0;
try {
while (true) {
readSize=inData.read(readBuffer, 0, 24);
final String inStr = new String(readBuffer, 0, readSize);
handler.post(new Runnable() {
public void run() {
doHandleReceivedCommand(inStr);
}
});
}
} catch (Exception e) {
Toast.makeText(getApplicationContext(), e.toString(),Toast.LENGTH_LONG ).show();
}
}
public void disconnect() {
try {
dataSocket.close();
} catch (Exception e) {
Toast.makeText(getApplicationContext(), e.toString(),Toast.LENGTH_LONG ).show();
}
}
}
public void doHandleReceivedCommand(String rawCommand) {
String command = rawCommand.trim();
setStatus("Got: "+ command);
}
}

www.code.google.com

so it is right that not all bluetooth keyboard might work properly with any kind of android handheld....as yesterday i just read it in one of bluetooth keyboard

Adding a Spinner and posting the data to database [volley]

public class MainActivity extends Activity {
EditText name, phonenumber, address;
Button insert;
RequestQueue requestQueue;
String insertUrl = "localhosti/insertCustomer.php";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
/* CHECK INTERNET CONNECTION */
boolean mobileNwInfo = false;
ConnectivityManager conxMgr = (ConnectivityManager) getSystemService(CONNECTIVITY_SERVICE);
try { mobileNwInfo = conxMgr.getActiveNetworkInfo().isConnected(); }
catch (NullPointerException e) { mobileNwInfo = false; }
if ( mobileNwInfo == false ) {
Toast.makeText(this, "No Network, please check your connection. ", Toast.LENGTH_LONG).show();
}
/* CHECK INTERNET CONNECTION PROCEDURE DONE */
name = (EditText) findViewById(R.id.editText);
phonenumber= (EditText) findViewById(R.id.editText2);
address = (EditText) findViewById(R.id.editText3);
insert = (Button) findViewById(R.id.insert);
requestQueue = Volley.newRequestQueue(getApplicationContext());
insert.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
final ProgressDialog pd = new ProgressDialog(MainActivity.this);
pd.setMessage("Booking Service ....");
pd.show();
StringRequest request = new StringRequest(Request.Method.POST, insertUrl, new Response.Listener<String>() {
@Override
public void onResponse(String response) {
pd.hide();
System.out.println(response.toString());
name.setText("");
phonenumber.setText("");
address.setText("");
Toast.makeText(getApplicationContext(), "Service successfully booked !!", Toast.LENGTH_LONG).show();
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
pd.hide();
Toast.makeText(getApplicationContext(), "Error: Please try again later.", Toast.LENGTH_LONG).show();
}
}) {
@Override
protected Map<String, String> getParams() throws AuthFailureError {
Map<String, String> parameters = new HashMap<String, String>();
parameters.put("name", name.getText().toString());
parameters.put("phonenumber", phonenumber.getText().toString());
parameters.put("address", address.getText().toString());
return parameters;
}
};
requestQueue.add(request);
}
});
}
}
Click to expand...
Click to collapse
how can i fetch the data from a spinner and post it to my db along with the current data ?

How to add image and text to both parentgroup and childgroup of expandablelistview

How to add image and text to both parentgroup and childgroup of expandablelistview dynamically from database.T his code uses expendable listview. I want to display image and text to parentgroup and childgroup of expendablelistview dynamically from database. i am a newbie in android development so please some one help me out.
This is my code:
public class CustomListAdapter15 extends BaseExpandableListAdapter {
List<HashMap<String, Object>> models, models2;
Context context;
LayoutInflater inflater;
ViewHolder viewHolder;
View view1;
// JSON Node names
private static final String TAG_SUCCESS = "success";
SharedPreferences sPref;
public CustomListAdapter15(Context context, List<HashMap<String, Object>> models2, List<HashMap<String, Object>> models) {
this.context = context;
this.models2 = models2; //parentItems
this.models = models; //childtems
inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
this.counters = new int[30];
//this.session_email = sPref.getString("SESSION_UID","");
}
public class ViewHolder {
public TextView countt = null;
public ImageView likem = null, createButton;
//RelativeLayout rel, rel2;
LinearLayout rel;
private Button btnSend;
}
public void clear() {
if (models != null)
models.clear();
}
public int getItemViewType(int position) {
// TODO Auto-generated method stub
return position;
}
@override
public Object getChild(int groupPosition, int childPosition) {
//return null;
//return models.get((HashMap<String, Object>)models2.get(groupPosition)).get(childPosition);
return models.get(groupPosition).get(childPosition);
}
@override
public long getChildId(int groupPosition, int childPosition) {
//return 0;
return childPosition;
}
@override
public int getChildrenCount(int groupPosition) {
return ((HashMap<String, Object>) models.get(groupPosition)).size();
//return models.size();
}
@override
public Object getGroup(int groupPosition) {
//return null;
return models2.get(groupPosition);
}
@override
public int getGroupCount() {
return models2.size();
}
@override
public void onGroupCollapsed(int groupPosition) {
super.onGroupCollapsed(groupPosition);
}
@override
public void onGroupExpanded(int groupPosition) {
super.onGroupExpanded(groupPosition);
}
@override
public long getGroupId(int groupPosition) {
//return 0;
return groupPosition;
}
@override
public boolean hasStableIds() {
return true;
}
@override
public boolean isChildSelectable(int groupPosition, int childPosition) {
return true;
}
public HashMap<String, Object> getItem(int position) {
return models.get(position);
}
public HashMap<String, Object> getItem1(int position2) {
return models2.get(position2);
}
/ @override
public long getChildId(int listPosition, int expandedListPosition) {
return expandedListPosition;
}*/
@override
public View getChildView(int groupPosition, final int childPosition, boolean isLastChild, View convertView, ViewGroup parent) {
View view = convertView;
final ViewHolder viewHolder;
if (view == null) {
LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
view = inflater.inflate(R.layout.chat_right, null);
/*if(session_ph.equals((sphon)))
{
view = inflater.inflate(R.layout.chat_right, parent, false);
}
else if(!session_ph.equals((sphon)))
{
view = inflater.inflate(R.layout.chat_left, parent, false);
}*/
//view.setBackgroundColor(color_arr[pos]);
viewHolder = new ViewHolder();
/* viewHolder.gppho=(TextView)view.findViewById(R.id.gphn);
viewHolder.gadminph=(TextView)view.findViewById(R.id.gadphn);
viewHolder.rel = (LinearLayout)view.findViewById(R.id.comrel);*/
gppho = (TextView) view.findViewById(R.id.gphn);
gadminph = (TextView) view.findViewById(R.id.gadphn);
viewHolder.rel = (LinearLayout) view.findViewById(R.id.comrel);
// rel1 = (LinearLayout)view.findViewById(R.id.comrel);
/* HashMap<String, Object> item = models.get(position);
gppho.setText((CharSequence) item.get("SPHON"));
gadminph.setText((CharSequence) item.get("GAPHON"));
String gadm_ph=gadminph.getText().toString();
String sendersphon=gppho.getText().toString();
RelativeLayout.LayoutParams layoutParams =
(RelativeLayout.LayoutParams) rel1.getLayoutParams();
if(gadm_ph.equals((sendersphon)))
{
layoutParams.addRule(RelativeLayout.ALIGN_PARENT_RIGHT,RelativeLayout.TRUE);
rel1.setLayoutParams(layoutParams);
rel1.setBackground(getResources().getDrawable(R.drawable.bubble2_out));
//v1iew = inflater.inflate(R.layout.chat_right, parent, false);
}
else if(!gadm_ph.equals((sendersphon)))
{
layoutParams.addRule(RelativeLayout.ALIGN_PARENT_LEFT,RelativeLayout.TRUE);
rel1.setLayoutParams(layoutParams);
rel1.setBackground(getResources().getDrawable(R.drawable.bubble1_in));
//view = inflater.inflate(R.layout.chat_left, parent, false);
}*/
viewHolder.rel.setOnLongClickListener(new View.OnLongClickListener() {
@override
public boolean onLongClick(View v) {
// TODO Auto-generated method stub
int position = (Integer) v.getTag();
HashMap<String, Object> item = models2.get(position);
gppho.setText((CharSequence) item.get("SPHON"));
gadminph.setText((CharSequence) item.get("GAPHON"));
String gadm_ph1 = gadminph.getText().toString();
String sendersphon1 = gppho.getText().toString();
gpida.setText((CharSequence) item.get("GID"));
pacmos = gpida.getText().toString();
Toast.makeText(Group_create_view_adm.this, gadm_ph1, Toast.LENGTH_SHORT).show();
Toast.makeText(Group_create_view_adm.this, sendersphon1, Toast.LENGTH_SHORT).show();
// removeItemFromList();
return true;
}
});
view.setTag(viewHolder);
} else {
viewHolder = (ViewHolder) view.getTag();
}
viewHolder.rel.setTag(childPosition);
final HashMap<String, Object> item = getItem(childPosition);
/* name.setText(((String)item.get(R.id.name)));
*
*/
gpida = (TextView) view.findViewById(R.id.gid);
gpnam = (TextView) view.findViewById(R.id.gnam);
gadminph = (TextView) view.findViewById(R.id.gadphn);
gpema = (TextView) view.findViewById(R.id.gema);
gppho = (TextView) view.findViewById(R.id.gphn);
namesa = (TextView) view.findViewById(R.id.senname);
msgsa = (TextView) view.findViewById(R.id.txt_msg);
tims = (TextView) view.findViewById(R.id.sentime);
imga = (ImageView) view.findViewById(R.id.gperimg);
gpida.setText((CharSequence) item.get("GID"));
gpnam.setText((CharSequence) item.get("GNAME"));
gadminph.setText((CharSequence) item.get("GAPHON"));
gpema.setText((CharSequence) item.get("SEMAIL"));
gppho.setText((CharSequence) item.get("SPHON"));
namesa.setText((CharSequence) item.get("SNAME"));
msgsa.setText((CharSequence) item.get("SCOMM"));
tims.setText((CharSequence) item.get("STIM"));
Picasso.with(context)
//.load("PIC")
.load((String) item.get("GPRIMG"))
// .centerCrop()
// .fit()
.into(imga);
rel1 = (LinearLayout) view.findViewById(R.id.comrel);
gadm_ph = gadminph.getText().toString();
sendersphon = gppho.getText().toString();
RelativeLayout.LayoutParams layoutParams = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT,
RelativeLayout.LayoutParams.WRAP_CONTENT);
if (session_ph.equals((sendersphon))) {
layoutParams.addRule(RelativeLayout.ALIGN_PARENT_RIGHT, RelativeLayout.TRUE);
rel1.setLayoutParams(layoutParams);
//rel1.setGravity(Gravity.RIGHT);
rel1.setBackground(getResources().getDrawable(R.drawable.bubble2_out));
//v1iew = inflater.inflate(R.layout.chat_right, parent, false);
} else if (!session_ph.equals((sendersphon))) {
layoutParams.addRule(RelativeLayout.ALIGN_PARENT_LEFT, RelativeLayout.TRUE);
rel1.setLayoutParams(layoutParams);
// rel1.setGravity(Gravity.LEFT);
rel1.setBackground(getResources().getDrawable(R.drawable.bubble1_in));
//view = inflater.inflate(R.layout.chat_left, parent, false);
}
if(childPosition == getChildrenCount(groupPosition)-1)
{
view = inflater.inflate(R.layout.chat_left,null);
viewHolder.btnSend =(Button)view.findViewById(R.id.btn_chat_send);
editText = (EditText)view.findViewById(R.id.msg_type);
//TextView txtFooter = (TextView)view.findViewById(R.id.txtFooter);
//txtFooter.setText(currentParent.textToFooter);
}
viewHolder.btnSend.setOnClickListener(new View.OnClickListener(){
@override
public void onClick(View v) {
int position = (Integer) v.getTag();
if (editText.getText().toString().trim().equals("")) {
Toast.makeText(Group_create_view_adm.this, "Please input some text...", Toast.LENGTH_LONG).show();
} else {
HashMap<String, Object> item = models.get(position);
pho.setText((CharSequence) item.get("PHON"));
pacm11=pho.getText().toString();
msg=editText.getText().toString();
new LoadAllProducts95().execute();
}
}
});
return view;
}
@override
public View getGroupView(int groupPosition, boolean isExpanded, View convertView, ViewGroup parent) {
view1 = convertView;
if(view1==null)
{
LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
view1 = inflater.inflate(R.layout.groupss_view_row, null);
//view.setBackgroundColor(color_arr[pos]);
viewHolder = new ViewHolder();
viewHolder.createButton = (ImageView)view1.findViewById(R.id.pic123df);
viewHolder.createButton.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
int position = (Integer) v.getTag();
HashMap<String, Object> item = models.get(position);
pho.setText((CharSequence) item.get("PHON"));
pacm=pho.getText().toString();
Intent intent = new Intent(context, Friendsprofile2.class);
intent.putExtra("TITLE", pacm);
//Intent putExtra = intent.putExtra("title", item.get(pac));
//intent.putExtra("image", item.getImage());
//Start details activity
context.startActivity(intent);
}
});
view1.setTag(viewHolder);
}
else {
viewHolder = (ViewHolder) view1.getTag();
}
viewHolder.createButton.setTag(groupPosition);
// viewHolder.rel.setTag(position);
//viewHolder.rel2.setTag(position);
final HashMap<String, Object> item = getItem1(groupPosition);
/* name.setText(((String)item.get(R.id.name)));
*
*/
// like = (ImageView) view.findViewById(R.id.like);
//sharingButton = (ImageButton) view.findViewById(R.id.share);
//text =(TextView)view.findViewById(R.id.text123);
name=(TextView)view1.findViewById(R.id.name);
idam=(TextView)view1.findViewById(R.id.id);
pho=(TextView)view1.findViewById(R.id.phon);
pic =(ImageView)view1.findViewById(R.id.pic123df);
bio=(TextView)view1.findViewById(R.id.bio);
//gtot=(TextView)view.findViewById(R.id.gptat);
name.setText((CharSequence) item.get("NAME"));
idam.setText((CharSequence) item.get("IDAC"));
pho.setText((CharSequence) item.get("PHON"));
bio.setText((CharSequence) item.get("BIOK"));
//gtot.setText((CharSequence) item.get("GPTAT"));
// text.setText((CharSequence) item.get("TEXT"));
//rel=(RelativeLayout)view.findViewById(R.id.frpos);
sapar=(TextView)view1.findViewById(R.id.sap);
gree = (ImageView)view1.findViewById(R.id.green);
sapar.setText((CharSequence) item.get("STAT"));
stato=sapar.getText().toString();
phoneno=pho.getText().toString();
//abc=Integer.parseInt(stato);
if((stato.equals(1)))
{
// Toast.makeText(context, "abc", Toast.LENGTH_LONG).show();
Picasso.with(context)
//.load("PIC")
.load(R.mipmap.green)
.resize(30, 30)
// .centerCrop()
// .fit()
.into(gree);
// Toast.makeText(context, phoneno, Toast.LENGTH_LONG).show();
}
else if(!stato.equals(1))
{
// Toast.makeText(context, "koll", Toast.LENGTH_LONG).show();
Picasso.with(context)
//.load("PIC")
.load(R.mipmap.gray)
.resize(30, 30)
// .centerCrop()
// .fit()
.into(gree);
}
Picasso.with(context)
//.load("PIC")
.load((String)item.get("PIC"))
.resize(150, 150)
// .centerCrop()
// .fit()
.into(pic);
return view1;
}
}

Need help deleting childview from groupview in expandablelistview w/custom adapter

Hey guys, I am having problem with deleting the childview from my expandablelistview. It deletes (I think), however, when I add a new childview, it is the exact same as the one I just deleted.
youtu.be/eJjR9FEpaaY
codes below

My activity
Code:
public class PlanSetterAct extends AppCompatActivity {
private Button nextBtn;
private EditText planName, weekNum;
private ExpandableListView weekdayList;
List<String> listDataHeader;
HashMap<String, List<String>> listDataChild;
private PlanSetterListAdapter adapter;
private int childCount = 0;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.plan_setter);
weekdayList = (ExpandableListView) findViewById(R.id.plan_setter_exercise_list);
nextBtn = (Button) findViewById(R.id.plan_next_btn);
planName = (EditText) findViewById(R.id.plan_name_edit);
weekNum = (EditText) findViewById(R.id.plan_num_edit);
prepareNextButton();
prepareExerciseList();
adapter = new PlanSetterListAdapter(this.getApplicationContext(),listDataHeader,listDataChild);
weekdayList.setAdapter(adapter);
exerciseListChildListener();
}
private void prepareNextButton(){
nextBtn.animate().setDuration(1000);
nextBtn.animate().translationXBy(-500);
nextBtn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
if(Checker.hasText(planName) && Checker.isNum(weekNum)){
Utilities.setButtonClickColor(nextBtn, Color.GREEN);
startActivity(new Intent(PlanSetterAct.this, UserMainAct.class));
finish();
Utilities.debugLog("Moving to UserMainAct");
}else{
Utilities.setButtonClickColor(nextBtn, Color.RED);
}
}
});
}
private void prepareExerciseList() {
listDataHeader = new ArrayList<String>();
listDataChild = new HashMap<String, List<String>>();
// Adding child data
listDataHeader.add("Monday");
listDataHeader.add("Tuesday");
listDataHeader.add("Wednesday");
listDataHeader.add("Thursday");
listDataHeader.add("Friday");
listDataHeader.add("Saturday");
listDataHeader.add("Sunday");
for(int i = 0; i < listDataHeader.size(); i++) {
listDataChild.put(listDataHeader.get(i), new ArrayList<String>());
}
}
private void exerciseListChildListener(){
weekdayList.setOnItemLongClickListener(new AdapterView.OnItemLongClickListener() {
@Override
public boolean onItemLongClick(AdapterView<?> parent, View view, int position, long id) {
ExpandableListView expandableListView = (ExpandableListView) parent;
long pos = expandableListView.getExpandableListPosition(position);
int itemType = ExpandableListView.getPackedPositionType(pos);
int groupPosition = ExpandableListView.getPackedPositionGroup(pos);
int childPosition = ExpandableListView.getPackedPositionChild(pos);
List<String> parentGroup = listDataChild.get(listDataHeader.get(groupPosition));
if(itemType == ExpandableListView.PACKED_POSITION_TYPE_GROUP){
parentGroup.add(childPosition+"");
adapter.notifyDataSetChanged();
return true;
}else if(itemType == ExpandableListView.PACKED_POSITION_TYPE_CHILD){
debugLog("Parent position: " + groupPosition +" | child position: " + childPosition);
parentGroup.remove(childPosition);
adapter.notifyDataSetChanged();
return true;
}
return false;
}
});
}
}
My Adapter
Code:
public class PlanSetterListAdapter extends BaseExpandableListAdapter {
private Context context;
private List<String> listDataHeader;
private HashMap<String, List<String>> listDataChild;
public PlanSetterListAdapter(Context context, List<String> listDataHeader,
HashMap<String, List<String>> listChildData) {
this.context = context;
this.listDataHeader = listDataHeader;
this.listDataChild = listChildData;
}
@Override
public Object getChild(int groupPosition, int childPosititon) {
return this.listDataChild.get(this.listDataHeader.get(groupPosition))
.get(childPosititon);
}
@Override
public long getChildId(int groupPosition, int childPosition) {
return childPosition;
}
@Override
public View getChildView(int groupPosition, final int childPosition,
boolean isLastChild, View convertView, ViewGroup parent) {
final LayoutInflater inflater;
if (convertView == null) {
inflater= (LayoutInflater) this.context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = inflater.inflate(R.layout.add_exercise_layout, null);
}
final LinearLayout txtListChild = (LinearLayout) convertView.findViewById(R.id.plan_setter_add_exercise);
final LinearLayout addExerciseLayout = (LinearLayout) txtListChild.getChildAt(0);
Button okBtn = (Button) addExerciseLayout.getChildAt(1);
//init and gone from xml
okBtn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
TextView errorView = (TextView) txtListChild.getChildAt(1);
TextView finalView = (TextView) txtListChild.getChildAt(2);
LinearLayout exerciseAddLayout = (LinearLayout) addExerciseLayout.getChildAt(0);
EditText exerciseNameEdit = ((EditText)exerciseAddLayout.getChildAt(0));
EditText exerciseLbsEdit = (EditText)exerciseAddLayout.getChildAt(2);
EditText exerciseRepsEdit = (EditText) exerciseAddLayout.getChildAt(4);
if(hasText(exerciseNameEdit) && isNum(exerciseLbsEdit) && isNum(exerciseRepsEdit)){
String exerciseNameStr = exerciseNameEdit.getText().toString();
String exerciseWeightStr = exerciseLbsEdit.getText().toString()+"lbs";
String exerciseRepsStr = exerciseLbsEdit.getText().toString()+"x";
finalView.setText(exerciseNameStr + " at " + exerciseWeightStr + " for " +exerciseRepsStr);
finalView.setTextSize(20);
//display
setVisibleAndAnimate(context,finalView);
addExerciseLayout.setVisibility(View.GONE);
errorView.setVisibility(View.GONE);
}else{
setVisibleAndAnimate(context,errorView);
}
}
});
return convertView;
}
@Override
public int getChildrenCount(int groupPosition) {
return this.listDataChild.get(this.listDataHeader.get(groupPosition))
.size();
}
@Override
public Object getGroup(int groupPosition) {
return this.listDataHeader.get(groupPosition);
}
@Override
public int getGroupCount() {
return this.listDataHeader.size();
}
@Override
public long getGroupId(int groupPosition) {
return groupPosition;
}
@Override
public View getGroupView(int groupPosition, boolean isExpanded,
View convertView, ViewGroup parent) {
String headerTitle = (String) getGroup(groupPosition);
if (convertView == null) {
LayoutInflater infalInflater = (LayoutInflater) this.context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = infalInflater.inflate(R.layout.expandable_list_parent, null);
}
TextView lblListHeader = (TextView) convertView
.findViewById(R.id.lblListHeader);
lblListHeader.setTypeface(null, Typeface.BOLD);
lblListHeader.setText(headerTitle);
return convertView;
}
@Override
public boolean hasStableIds() {
return false;
}
@Override
public boolean isChildSelectable(int groupPosition, int childPosition) {
return true;
}
}

How can I parse an xml file from external folder in android studio?

Hi,
I have the following code but it doesn't work. When I work with the assets folder (InputStream is=getAssets().open("places.xml") I have no problem.
Thanks for help me.
public class MainActivity extends AppCompatActivity {
private TextView txt;
@override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
txt = (TextView) findViewById(R.id.txt);
parseXML();
Log.e("Mensaje:","onCreate");
}
private void parseXML() {
File file = null;
file = new File("/sdcard/Download/places.xml");
if(file.exists()){
Log.e("Message:", "File exists.");
}else {
Log.e("Message:", "File does NOT exists.");
}
try {
InputStream is = new FileInputStream(file);
XmlPullParserFactory parserFactory;
parserFactory = XmlPullParserFactory.newInstance();
XmlPullParser parser = parserFactory.newPullParser();
Log.e("Inside:","TRY");
parser.setFeature(XmlPullParser.FEATURE_PROCESS_NAMESPACES, false);
parser.setInput(is, null);
processParsing(parser);
} catch (XmlPullParserException e) {
Log.e("Message:","Error1");
} catch (IOException e) {
Log.e("Message:","Error2");
}
}
private void processParsing(XmlPullParser parser) throws IOException, XmlPullParserException {
Log.e("Inside:","processParsing");
ArrayList<Player> players = new ArrayList<>();
int eventType = parser.getEventType();
Player currentPlayer = null;
while (eventType != XmlPullParser.END_DOCUMENT) {
String eltName = null;
switch (eventType) {
case XmlPullParser.START_TAG:
eltName = parser.getName();
if ("place".equals(eltName)) {
currentPlayer = new Player();
players.add(currentPlayer);
} else if (currentPlayer != null) {
if ("name".equals(eltName)) {
currentPlayer.name = parser.nextText();
} else if ("cre_id".equals(eltName)) {
currentPlayer.cre_id = parser.nextText();
} else if ("x".equals(eltName)) {
currentPlayer.x = parser.nextText();
} else if ("y".equals(eltName)) {
currentPlayer.y = parser.nextText();
}
}
break;
}
eventType = parser.next();
}
printPlayers(players);
}
private void printPlayers(ArrayList<Player> players) {
StringBuilder builder = new StringBuilder();
Log.e("Inside:","printPlayers");
for (Player player : players) {
builder.append(player.name).append("\n").
append(player.cre_id).append("\n").
append(player.x).append("\n").
append(player.y).append("\n\n");
}
txt.setText(builder.toString());
}
}