I am new to android and I need some guidance.
I have two issues in my app - a) While using the application if I remove the app from the cache the data is not visible any more. We have to log out and again login to the app to get the data. I think there is an issue in SharedPreferenceClass.
b)In "Pending Approval" tag in "To Do List" I want to add an Expandable Listview. Though I have already added the listview. But nothing is going to visible in my activity. It will look like the picture below
a)Cache Memory Issue:
Logout:
Login:
b)Expandable List View
pending_expandable_heading.xml
pending_expandable_listview.xml
activity_lead_details.xml
ExpandableListAdapter.java:
PendingExpandableActivity.java:
I have two issues in my app - a) While using the application if I remove the app from the cache the data is not visible any more. We have to log out and again login to the app to get the data. I think there is an issue in SharedPreferenceClass.
b)In "Pending Approval" tag in "To Do List" I want to add an Expandable Listview. Though I have already added the listview. But nothing is going to visible in my activity. It will look like the picture below
a)Cache Memory Issue:
Code:
public class SharedPreferencesClass {
private SharedPreferences sp;
public boolean read(Context context)
{
Boolean value;
sp = context.getSharedPreferences("MyPref", 0);
value=sp.getBoolean("MyPref", false);
return value;
}
public void write(Context context,Boolean val)
{
sp=context.getSharedPreferences("MyPref",0);
SharedPreferences.Editor editor=sp.edit();
editor.clear();
editor.putBoolean("MyPref",val);
editor.commit();
}
public void clear(Context context)
{
sp=context.getSharedPreferences("MyPref",0);
SharedPreferences.Editor editor=sp.edit();
editor.clear();
editor.commit();
}
}Logout:
Code:
new SharedPreferencesClass().clear(ToDoListActivity.this);
Intent i=new Intent(ToDoListActivity.this,LoginActivity.class);
startActivity(i);
finish();Login:
Code:
new SharedPreferencesClass().write(LoginActivity.this,true);b)Expandable List View
pending_expandable_heading.xml
Code:
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:id="@+id/lblListHeader"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:paddingLeft="?android:attr/expandableListPreferredItemPaddingLeft"
android:textSize="20dp"
android:text="Heading"
android:layout_margin="10dp"/>
</LinearLayout>pending_expandable_listview.xml
Code:
<android.support.v4.widget.SwipeRefreshLayout android:id="@+id/swipeRefreshLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
xmlns:android="http://schemas.android.com/apk/res/android">
<ExpandableListView
android:id="@+id/lvExp"
android:layout_height="match_parent"
android:layout_width="match_parent"/>
</android.support.v4.widget.SwipeRefreshLayout>activity_lead_details.xml
Code:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.v7.widget.CardView
xmlns:card_view="http://schemas.android.com/apk/res-auto"
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/card_view"
android:layout_width="match_parent"
android:layout_height="wrap_content"
card_view:cardUseCompatPadding="true"
card_view:cardElevation="5dp"
card_view:cardCornerRadius="15dp">
<LinearLayout
android:id="@+id/layout_details"
android:layout_width="match_parent"
android:orientation="vertical"
android:padding="15dp"
android:layout_height="wrap_content">
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<TextView
android:id="@+id/txt_date"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Date"
android:textSize="16sp"
android:padding="5dp"/>
<TextView
android:id="@+id/txt_loc"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Location"
android:textSize="16sp"
android:padding="5dp"
android:layout_toRightOf="@+id/txt_date"
android:layout_marginLeft="10dp"/>
</RelativeLayout>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<Button
android:id="@+id/noteBtn"
android:layout_height="40dp"
android:layout_width="40dp"
android:padding="10dp"
android:layout_alignParentTop="true"
android:layout_alignParentRight="true"
android:onClick="clickNote"
android:background="@drawable/note"/>
<TextView
android:layout_toLeftOf="@+id/noteBtn"
android:id="@+id/txtOne"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textSize="20sp"
android:text="Home"
android:padding="5dp"/>
</RelativeLayout>
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<Button
android:id="@+id/call_btn"
android:layout_width="20dp"
android:layout_height="20dp"
android:background="@drawable/call"
android:layout_marginLeft="10dp"
android:layout_marginTop="5dp"/>
<TextView
android:id="@+id/txt_contact"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_toRightOf="@+id/call_btn"
android:textSize="16sp"
android:text="Contact"
android:padding="5dp"
android:layout_marginLeft="10dp"
android:background="@android:color/transparent"/>
</RelativeLayout>
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<Button
android:id="@+id/mail_btn"
android:layout_width="20dp"
android:layout_height="20dp"
android:background="@drawable/mail"
android:layout_marginLeft="10dp"
android:layout_marginTop="5dp"/>
<TextView
android:id="@+id/txt_mail"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_toRightOf="@+id/mail_btn"
android:textSize="16sp"
android:text="Mail"
android:padding="5dp"
android:layout_marginLeft="10dp"
android:background="@android:color/transparent"/>
</RelativeLayout>
<TextView
android:id="@+id/txtTwo"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textSize="16sp"
android:text="Home"
android:padding="5dp"/>
<TextView
android:id="@+id/txtThree"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textSize="16sp"
android:text="Home"
android:padding="5dp"/>
<TextView
android:id="@+id/txtFour"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textSize="16sp"
android:text="Home"
android:padding="5dp"/>
<TextView
android:id="@+id/txtFive"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textSize="16sp"
android:text="Home"
android:padding="5dp"/>
<TextView
android:id="@+id/txtSix"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textSize="16sp"
android:text="Home"
android:padding="5dp"/>
</LinearLayout>
</android.support.v7.widget.CardView>
<RelativeLayout
android:padding="20dp"
android:layout_below="@+id/card_view"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<Button
android:id="@+id/continueBtn"
android:text="@string/continue_btn"
android:padding="10dp"
android:layout_alignParentLeft="true"
android:layout_centerVertical="true"
android:layout_width="100dp"
android:textColor="#fff"
android:background="@drawable/lft"
android:textStyle="bold"
android:textSize="12sp"
android:onClick="clickContinue"
android:layout_height="50dp" />
<Button
android:id="@+id/yesBtn"
android:text="@string/yes_btn"
android:padding="10dp"
android:layout_alignParentRight="true"
android:layout_centerVertical="true"
android:layout_width="100dp"
android:textColor="#fff"
android:background="@drawable/rit"
android:textStyle="bold"
android:textSize="12sp"
android:onClick="clickYes"
android:layout_height="50dp" />
<Button
android:id="@+id/reassignBtn"
android:text="@string/reassign_btn"
android:padding="10dp"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:layout_width="100dp"
android:textColor="#fff"
android:background="@drawable/mid"
android:textStyle="bold"
android:textSize="12sp"
android:onClick="clickReassign"
android:layout_height="50dp" />
</RelativeLayout>
</RelativeLayout>ExpandableListAdapter.java:
Code:
public class ExpandableListAdapter extends BaseExpandableListAdapter implements NetworkCallback {
private HashMap<String, List<LeadBO>> _listDataChild;
private List<PendingBO> itemList;
private Context context;
private ViewHolderItem viewHolder = null;
private ViewHolderItem viewHolder1 = null;
public String empName = "";
public String empId = "";
List<EmpolyeBO> memberList;
public ExpandableListAdapter(Context context, List<PendingBO> itemList,
HashMap<String, List<LeadBO>> listChildData) {
this.context = context;
this.itemList = itemList;
this._listDataChild = listChildData;
callMemberList();
}
@Override
public Object getChild(int groupPosition, int childPosititon) {
return this._listDataChild.get(this.itemList.get(groupPosition)).get(childPosititon);
}
@Override
public long getChildId(int groupPosition, int childPosition) {
return childPosition;
}
@Override
public void updateScreen(String data, String tag) {
if(tag.compareTo(ApiUtil.TAG_MEMBER_LIST)==0){
memberList = MemberListParsar.parseEmplyoee(data);
}
if(tag.compareTo(ApiUtil.TAG_DEAD_LIST_PENDING)==0){
Utility.ShowLongNotification(context, ErrorUtil.DEAD_LEAD_MESSAGE);
((Activity) context).finish();
}
if(tag.compareTo(ApiUtil.TAG_ADD_LEAD_EMP)==0){
Utility.ShowLongNotification(context, ErrorUtil.REASSIGNED_MSG);
((Activity) context).finish();
}
}
static class ViewHolderItem {
public TextView txtLoc;
public TextView txtDate;
public TextView txtOne;
public TextView tv_contact;
public TextView tv_mail;
public TextView txtTwo;
public TextView txtThree;
public TextView txtFour;
public TextView txtFive;
public TextView txtSix;
public CardView cardView;
public TextView lblListHeader;
}
@Override
public View getChildView(int groupPosition, final int childPosition,
boolean isLastChild, View convertView, ViewGroup parent) {
final LeadBO leadBO = (LeadBO) getChild(groupPosition, childPosition);
if (convertView == null) {
LayoutInflater infalInflater = (LayoutInflater) this.context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = infalInflater.inflate(R.layout.activity_lead_details, null);
viewHolder = new ViewHolderItem();
viewHolder.txtLoc = (TextView) convertView.findViewById(R.id.txt_loc);
viewHolder.txtDate = (TextView) convertView.findViewById(R.id.txt_date);
viewHolder.txtOne = (TextView) convertView.findViewById(R.id.txtOne);
viewHolder.tv_contact = (TextView) convertView.findViewById(R.id.txt_contact);
viewHolder.tv_mail = (TextView) convertView.findViewById(R.id.txt_mail);
viewHolder.txtTwo = (TextView) convertView.findViewById(R.id.txtTwo);
viewHolder.txtThree = (TextView) convertView.findViewById(R.id.txtThree);
viewHolder.txtFour = (TextView) convertView.findViewById(R.id.txtFour);
viewHolder.txtFive = (TextView) convertView.findViewById(R.id.txtFive);
viewHolder.txtSix = (TextView) convertView.findViewById(R.id.txtSix);
viewHolder.cardView = (CardView) convertView.findViewById(R.id.card_view);
convertView.setTag(viewHolder);
}else{
viewHolder = (ViewHolderItem) convertView.getTag();
}
decComponent();
return convertView;
}
private void decComponent() {
PendingBO pendingBO = AppController.getInstance().pendingBO;
LeadBO lead= pendingBO.getLead();
viewHolder.txtLoc.setText(lead.getLocation());
viewHolder.txtDate.setText(lead.getDate());
viewHolder.txtOne.setText(lead.getName());
viewHolder.tv_contact.setText(lead.getPhNo());
viewHolder.tv_mail.setText(lead.getEmail());
viewHolder.txtTwo.setText(lead.getProject()+" : "+lead.getArea());
viewHolder.txtThree.setText("Budget"+" : "+lead.getBudget());
viewHolder.txtFour.setText( lead.getSource());
viewHolder.txtFive.setText("Reason :"+pendingBO.getReason());
viewHolder.txtSix.setText("BDE Name : "+pendingBO.getEmpName());
viewHolder.tv_contact.setPaintFlags(viewHolder.tv_contact.getPaintFlags() | Paint.UNDERLINE_TEXT_FLAG);
viewHolder.tv_mail.setPaintFlags(viewHolder.tv_mail.getPaintFlags() | Paint.UNDERLINE_TEXT_FLAG);
viewHolder.tv_contact.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
String number = viewHolder.tv_contact.getText().toString().trim();
Intent callIntent = new Intent(Intent.ACTION_CALL);
callIntent.setData(Uri.parse("tel:" + number));
if (ActivityCompat.checkSelfPermission(context, Manifest.permission.CALL_PHONE) != PackageManager.PERMISSION_GRANTED) {
return;
}
context.startActivity(callIntent);
}
});
viewHolder.tv_mail.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
String mail=viewHolder.tv_mail.getText().toString().trim();
Intent i = new Intent(Intent.ACTION_SEND);
i.setType("message/rfc822");
// i.putExtra(Intent.EXTRA_EMAIL, new String[]{String.valueOf(Uri.parse(mail))});
i.putExtra(Intent.EXTRA_EMAIL , new String[]{"recipient@example.com"});
i.putExtra(Intent.EXTRA_SUBJECT, "subject of email");
i.putExtra(Intent.EXTRA_TEXT , "body of email");
try {
context.startActivity(Intent.createChooser(i, "Send mail..."));
} catch (android.content.ActivityNotFoundException ex) {
Toast.makeText(context, "There are no email clients installed.", Toast.LENGTH_SHORT).show();
}
}
});
}
@Override
public int getChildrenCount(int groupPosition) {
return this._listDataChild.get(this.itemList.get(groupPosition).getEmpName()).size();
}
@Override
public Object getGroup(int groupPosition) {
return this.itemList.get(groupPosition);
}
@Override
public int getGroupCount() {
return this.itemList.size();
}
@Override
public long getGroupId(int groupPosition) {
return groupPosition;
}
@Override
public View getGroupView(int groupPosition, boolean isExpanded, View convertView, ViewGroup parent) {
PendingBO pendingBO = (PendingBO) getGroup(groupPosition);
if (convertView == null) {
LayoutInflater infalInflater = (LayoutInflater) this.context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = infalInflater.inflate(R.layout.pending_approval_expandable_heading, null);
viewHolder1 = new ViewHolderItem();
viewHolder1.lblListHeader = (TextView) convertView.findViewById(R.id.lblListHeader);
convertView.setTag(viewHolder1);
}else{
viewHolder1 = (ViewHolderItem) convertView.getTag();
}
viewHolder1.lblListHeader.setTypeface(null, Typeface.BOLD);
viewHolder1.lblListHeader.setText(pendingBO.getEmpName());
return convertView;
}
@Override
public boolean hasStableIds() {
return false;
}
@Override
public boolean isChildSelectable(int groupPosition, int childPosition) {
return true;
}
public void clickContinue(View v){
empName = AppController.getInstance().pendingBO.getEmpName();
callAddLeadEmp(AppController.getInstance().pendingBO.getEmpID());
}
public void clickYes(View v){
callDeadLeadApproval();
}
public void clickReassign(View v){
ShowEmpList();
}
public void ShowEmpList(){
String[] empArr = new String[memberList.size()];
for(int i=0;i<memberList.size();i++){
empArr[i]=memberList.get(i).getName();
}
new MaterialDialog.Builder(context)
.title("Select BDE Name")
.items(empArr)
.alwaysCallSingleChoiceCallback()
.itemsCallbackSingleChoice(-1, new MaterialDialog.ListCallbackSingleChoice() {
@Override
public boolean onSelection(MaterialDialog dialog, View view, int which, CharSequence text) {
empId = memberList.get(which).getId();
empName = text.toString();
Log.e("Emp Name",empName);
return true;
}
})
.positiveText("Choose & Submit")
.onPositive(new MaterialDialog.SingleButtonCallback() {
@Override
public void onClick(@NonNull MaterialDialog dialog, @NonNull DialogAction which) {
if(empId.length()<=0){
Utility.ShowLongNotification(context, ErrorUtil.MEMBER_SELECTION_BLANK);
return;
}
callAddLeadEmp(empId);
dialog.dismiss();
}
})
.show();
}
public void clickNote(View v){
Intent intent = new Intent(context, NoteActivity.class);
AppController ctrl = AppController.getInstance();
ctrl.leadId = ctrl.pendingBO.getLead().getId();
ctrl.noteList = ctrl.pendingBO.getLead().getNoteBOList();
context.startActivity(intent);
}
public void callMemberList(){
AppController ctrl = AppController.getInstance();
MemberListAPI api = new MemberListAPI(context,this);
api.processMemberList(ctrl.mEmpId);
}
public void callDeadLeadApproval(){
AppController ctrl = AppController.getInstance();
DeadLeadPendingAPI api = new DeadLeadPendingAPI(context,this);
api.processDeadLead(""+ctrl.pendingBO.getLead().getId());
}
public void callAddLeadEmp(String empID){
AppController ctrl = AppController.getInstance();
AddLeadEmpAPI api = new AddLeadEmpAPI(context,this);
api.processAddLeadEmp(empID, LMSUtil.PRE_VISIT,""+ctrl.pendingBO.getLead().getId());
}
}PendingExpandableActivity.java:
Code:
public class PendingExpandableActivity extends Activity implements NetworkCallback{
ExpandableListAdapter listAdapter;
ExpandableListView expListView;
AppController delegate;
private List<PendingBO> listDataHeader;
private HashMap<String, List<LeadBO>> listDataChild;
private static Context context;
private GridLayoutManager lLayout;
private SwipeRefreshLayout mSwipeRefreshLayout;
private Button homeBtn;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
setContentView(R.layout.fragment_pending_expandablelistview);
mSwipeRefreshLayout = (SwipeRefreshLayout)findViewById(R.id.swipeRefreshLayout);
homeBtn= (Button) findViewById(R.id.homeBtn);
mSwipeRefreshLayout.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {
@Override
public void onRefresh() {
// Refresh items
callDeadLead();
}
});
// get the listview
expListView = (ExpandableListView) findViewById(R.id.lvExp);
listDataHeader = new ArrayList<PendingBO>();
listDataChild = new HashMap<String, List<LeadBO>>();
listAdapter = new ExpandableListAdapter(this, listDataHeader, listDataChild);
expListView.setAdapter(listAdapter);
expListView.setOnGroupClickListener(new ExpandableListView.OnGroupClickListener() {
@Override
public boolean onGroupClick(ExpandableListView parent, View v,
int groupPosition, long id) {
PendingBO pendingBO = listDataHeader.get(groupPosition);
if (pendingBO.getStatus() == 0) {
pendingBO.setStatus(1);
} else {
pendingBO.setStatus(0);
}
listAdapter.notifyDataSetChanged();
return false;
}
});
// Listview Group expanded listener
expListView.setOnGroupExpandListener(new ExpandableListView.OnGroupExpandListener() {
@Override
public void onGroupExpand(int groupPosition) {
}
});
// Listview Group collasped listener
expListView.setOnGroupCollapseListener(new ExpandableListView.OnGroupCollapseListener() {
@Override
public void onGroupCollapse(int groupPosition) {
}
});
// Listview on child click listener
expListView.setOnChildClickListener(new ExpandableListView.OnChildClickListener() {
@Override
public boolean onChildClick(ExpandableListView parent, View v,
int groupPosition, int childPosition, long id) {
return false;
}
});
}
@Override
protected void onResume() {
super.onResume();
context=PendingExpandableActivity.this;
callDeadLead();
}
private void callDeadLead() {
AppController ctrl = AppController.getInstance();
DeadListAPI api = new DeadListAPI(this,this);
api.processDeadLead(ctrl.mEmpId);
}
@Override
protected void onPause() {
super.onPause();
Log.e("activity","onPause()");
}
public boolean onKeyDown(int keyCode, KeyEvent event) {
if (keyCode == KeyEvent.KEYCODE_BACK) {
back();
finish();
}
return super.onKeyDown(keyCode, event);
}
private void back() {
Intent i=new Intent(PendingExpandableActivity.this,ToDoListActivity.class);
i.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
startActivity(i);
}
@Override
public void updateScreen(String data, String tag) {
if(tag.compareTo(ApiUtil.TAG_DEAD_LEAD_API)==0){
listDataHeader = PendingListParsar.parsePendingBo(data);
// makePendingApprovals();
mSwipeRefreshLayout.setRefreshing(false);
}
}
public void makePendingApprovals(){
lLayout = new GridLayoutManager(this,1);
RecyclerView rView = (RecyclerView)findViewById(R.id.cardList);
rView.setHasFixedSize(true);
rView.setLayoutManager(lLayout);
rView.setItemAnimator(new DefaultItemAnimator());
PendingViewAdapter rcAdapter = new PendingViewAdapter(this, listDataHeader);
rView.setAdapter(rcAdapter);
}
}
