I searched net to find the answer for my following problem. But no answer found. I myself tried several ways, but I am still a novice at Android. What I found on net related to scrolling is official documentation and examples of scrolling on http://developer.android.com, Mr. Senthilkumar's How to scroll the screen, Kakka47's ScrollView only part of the screen, darrinps A scroll view with only part of the screen scrolling, etc.
This is very common requirement as is clear from above titles. I have following screen layout as shown in figure.
The screen from top to column titles is stable. The table records, below column titles needs to scroll. I have AbsoluteLayout (I know it is deprecated but that is the only one I can use for by specific need), inside it a scrollview and inside scrollview a TableLayout.
User clicks "Add" button to add the orders received. One order in one row. As rows increase, they go beyond visible area. Therefore, I want it to scroll so user can access it. But this part is not scrolling. I have given the listing of my code. Please tell me what to do.
Code:
package com.BookOrders;
import java.util.Calendar;
import android.app.Activity;
import android.app.DatePickerDialog;
import android.app.Dialog;
import android.content.Context;
import android.os.Bundle;
import android.view.View;
import android.widget.AbsoluteLayout;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.DatePicker;
import android.widget.EditText;
import android.widget.ScrollView;
import android.widget.Spinner;
import android.widget.TableLayout;
import android.widget.TableRow;
import android.widget.TextView;
//import android.widget.TableRow.LayoutParams;
#SuppressWarnings("deprecation")
public class BookOrders extends Activity implements ScrollViewListener{
/** Called when the activity is first created. */
private TextView BookingDateDisplay;
private Button ChangeDate, AddRec, DeleteRec, SaveAll;
private CheckBox SelectedAll, SelectedRec;
private ObservableScrollView CustomScroller = null;
private ObservableScrollView CustomScrolled = null;
private int ChangedYear;
private int ChangedMonth;
private int ChangedDay;
public Context CurrentContext, UsedContext;
static final int DATE_DIALOG_ID = 0;
int IdGenerator = 100000;
int Number_of_Records = 0;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
#SuppressWarnings("deprecation")
final AbsoluteLayout main = (AbsoluteLayout)findViewById(R.id.widget0);
CurrentContext = main.getContext();
//final ScrollView ScrollControl = (ScrollView)findViewById(R.id.scroller);
//final AbsoluteLayout LayerControl = (AbsoluteLayout)findViewById(R.id.FinalLayer);
// UsedContext = LayerControl.getContext();
// capture our View elements
CustomScroller = (ObservableScrollView) findViewById(R.id.scrollContainer);
BookingDateDisplay = (TextView) findViewById(R.id.BookedDate);
ChangeDate = (Button) findViewById(R.id.pickDate);
AddRec = (Button) findViewById(R.id.AddRecord);
DeleteRec = (Button) findViewById(R.id.DeleteRecord);
SaveAll = (Button) findViewById(R.id.SaveRecord);
SelectedAll = (CheckBox) findViewById(R.id.SelectAll);
// add a click listener to the button
ChangeDate.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
showDialog(DATE_DIALOG_ID);
}
});
AddRec.setOnClickListener(new View.OnClickListener() {
public void onClick(View AddRecView) {
IdGenerator = IdGenerator+10;
UsedContext = AddRecView.getContext();
TableRow Tr = new TableRow(UsedContext);
for (int controls=0; controls<6; controls++) {
if (controls==0){
CheckBox RecordCheck = new CheckBox(UsedContext);
RecordCheck.setId(IdGenerator+controls);
RecordCheck.setTag("CheckBoxTag");
RecordCheck.setHeight(20);
RecordCheck.setWidth(25);
Tr.addView(RecordCheck);
}
if ((0 < controls ) && (controls<5)){
Spinner Record = new Spinner(UsedContext);
Record.setId(IdGenerator+controls);
//Record.setMinimumHeight(20);
//Record.setMinimumWidth(90);
Tr.addView(Record);
}
if (controls==5){
EditText OrderQuantity = new EditText(UsedContext);
OrderQuantity.setId(IdGenerator+controls);
//OrderQuantity.setHeight(20);
//OrderQuantity.setWidth(90);
Tr.addView(OrderQuantity);
}
}
TableLayout Orders = (TableLayout)findViewById(R.id.OrderData);
Orders.addView(Tr);
// Scrolls to line before last - why?
final ScrollView ScrollAttempt = (ScrollView) findViewById(R.id.scrollContainer);
ScrollAttempt.post(new Runnable() {
public void run() {
ScrollAttempt.fullScroll(View.FOCUS_DOWN);
}
});
Number_of_Records = Number_of_Records + 1;
}
});
// updates the date in the TextView
private void updateDisplay() {
BookingDateDisplay.setText(
new StringBuilder()
.append(ChangedDay).append("-")
.append(ChangedMonth + 1).append("-") // Month is 0 based so add 1
.append(ChangedYear).append(" "));
}
// the call back received when the user "sets" the date in the dialog
private DatePickerDialog.OnDateSetListener DateSetListener =
new DatePickerDialog.OnDateSetListener(){
public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) {
ChangedYear = year;
ChangedMonth = monthOfYear;
ChangedDay = dayOfMonth;
updateDisplay();
}
};
#Override
protected Dialog onCreateDialog(int id) {
switch (id) {
case DATE_DIALOG_ID:
return new DatePickerDialog(this, DateSetListener, ChangedYear, ChangedMonth, ChangedDay);
}
return null;
}
public void onScrollChanged(ObservableScrollView scrollView, int x, int y, int oldx, int oldy) {
if(scrollView == CustomScroller) {
CustomScrolled.scrollTo(x, y);
} else if(scrollView == CustomScrolled) {
CustomScroller.scrollTo(x, y);
}
}
}
My main.xml:
<?xml version="1.0" encoding="utf-8"?>
<AbsoluteLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/widget0"
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
<!-- <ImageButton android:text="Date" android:layout_height="20px" android:layout_width="32px" android:id="#+id/BDate" android:layout_x="274dip" android:layout_y="51dip"></ImageButton> -->
<TextView
android:id="#+id/Title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_x="81dip"
android:layout_y="10dip"
android:background="#0ff0ff"
android:gravity="center"
android:text="Order Booking"
android:textColor="#330000"
android:textSize="20sp"
android:textStyle="bold"
android:typeface="serif" >
</TextView>
<TextView
android:id="#+id/BDate_text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_x="277dip"
android:layout_y="52dip"
android:gravity="right"
android:text="Booked on:"
android:textSize="12sp" >
</TextView>
<TextView
android:id="#+id/BookedDate"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_x="350dip"
android:layout_y="52dip"
android:text=""
android:textSize="12sp" >
</TextView>
<Button
android:id="#+id/pickDate"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_x="400dip"
android:layout_y="15dip"
android:text="Change Date"
android:textSize="10sp" >
</Button>
<View
android:layout_width="wrap_content"
android:layout_height="36dp"
android:layout_y="68dp"
android:background="#drawable/gradient" >
</View>
<Button
android:id="#+id/AddRecord"
android:layout_width="120dp"
android:layout_height="34dp"
android:layout_x="10dip"
android:layout_y="71dip"
android:text="Add"
android:textSize="10sp" >
</Button>
<Button
android:id="#+id/DeleteRecord"
android:layout_width="120dp"
android:layout_height="34dp"
android:layout_x="140dp"
android:layout_y="71dp"
android:text="Delete"
android:textSize="10sp" >
</Button>
<Button
android:id="#+id/ClearRecord"
android:layout_width="120dp"
android:layout_height="34dp"
android:layout_x="270dp"
android:layout_y="71dp"
android:text="Clear"
android:textSize="10sp" >
</Button>
<Button
android:id="#+id/SaveRecord"
android:layout_width="120dp"
android:layout_height="34dp"
android:layout_x="400dp"
android:layout_y="71dp"
android:text="Save"
android:textSize="10sp" >
</Button>
<View
android:layout_width="wrap_content"
android:layout_height="1dp"
android:layout_y="110dp"
android:background="#drawable/gradient" >
</View>
<CheckBox
android:id="#+id/SelectAll"
android:layout_width="wrap_content"
android:layout_height="20dp"
android:layout_x="10dip"
android:layout_y="115dip"
android:text="Select All"
android:textSize="10sp" >
</CheckBox>
<TextView
android:id="#+id/Company"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_x="95dip"
android:layout_y="115dip"
android:background="#666666"
android:text="Company"
android:textColor="#000000"
android:textSize="12sp" >
</TextView>
<TextView
android:id="#+id/Product"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_x="200dip"
android:layout_y="115dip"
android:background="#666666"
android:text="Product"
android:textColor="#000000"
android:textSize="12sp" >
</TextView>
<TextView
android:id="#+id/Code"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_x="300dip"
android:layout_y="115dip"
android:background="#666666"
android:text="Code"
android:textColor="#000000"
android:textSize="12sp" >
</TextView>
<TextView
android:id="#+id/Model"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_x="380dp"
android:layout_y="115dp"
android:background="#666666"
android:text="Model"
android:textColor="#000000"
android:textSize="12sp" >
</TextView>
<TextView
android:id="#+id/Quantity"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_x="470dp"
android:layout_y="115dp"
android:background="#666666"
android:text="Quantity"
android:textColor="#000000"
android:textSize="12sp" >
</TextView>
<View
android:id="#+id/view1"
android:layout_width="wrap_content"
android:layout_height="1dp"
android:layout_x="0dip"
android:layout_y="134dip"
android:background="#drawable/gradient" >
</View>
<com.BookOrders.ObservableScrollView
android:id="#+id/scrollContainer"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:layout_x="1dp"
android:layout_y="140dp"
android:clickable="true"
android:fadeScrollbars="false"
android:fillViewport="true" >
<TableLayout
android:id="#+id/OrderData"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:stretchColumns="0,1,2,3,4" />
</com.BookOrders.ObservableScrollView>
</AbsoluteLayout>
Have you tried a ScrollView? You can find more about ScrollView here
Here is an example of how to use ScrollView:
<ScrollView
android:id="#+id/coupons_details_scroll_view"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<!--You can nest any other views here, and they will be scrollable, but take care of views that have their own scrolling capabilities like ListView -->
</ScrollView>
Good luck with it :)
I worked out the solution for this. For those who would like to know can first go through the following link
http://blog.stylingandroid.com/archives/447
I used this logic. However, I create rows dynamically when user clicks "Add" button. The only problem is, if you use spinner you won't be able to set its height zero.
Nitin
Related
I'm trying to figure out why my app crashes when my AddThreeToTeamA button crashes my application upon clicking. I have addded my XML and my Java code.
I am following a tutorial however it obviously does not crash and I have tried several different solutions.
Any hint will be appreciated.
package com.themovingmonkey.courtcounter;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.TextView;
public class MainActivity extends AppCompatActivity {
int score = 0;
int scoreTeamA;
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
public void addThreeForTeamA() {
scoreTeamA = score + 3;
displayForTeamA(scoreTeamA);
}
public void addTwoForTeamA() {
scoreTeamA = score + 2;
displayForTeamA(scoreTeamA);
}
public void addOneForTeamA() {
scoreTeamA = score + 1;
displayForTeamA(scoreTeamA);
}
public void displayForTeamA(int score) {
TextView scoreView = (TextView) findViewById(R.id.Team_A_Score);
scoreView.setText(String.valueOf(scoreTeamA));
}
}
////////////////////////////////////////////////////////////////
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingLeft="16dp"
android:paddingRight="16dp"
android:orientation="vertical"
>
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:text= "Team A"
android:padding="4dp"/>
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:text="0"
android:padding="4dp"
android:id="#+id/Team_A_Score"/>
<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="3 Points"
android:layout_margin="8dp"
android:onClick="addThreeForTeamA"
/>
<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="2 Points"
android:layout_margin="8dp"
android:onClick="addTwoForTeamA"
/>
<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="1 Point"
android:layout_margin="8dp"
android:onClick="addOneForTeamA"
/>
</LinearLayout>
All methods defined using the android:onClick="someMethod" attribute. Then they have to be public and should pass a View as the only parameter, Change your methods to:
public void someMethod(View view){
//Everything else!
}
Your methods do not pass a View as the only parameter at all currently!
I'm currently making a very simple math game. In this math game I want the player to solve easy equations. It looks like this: 9 * __ = 45, the player then fill in the correct number to solve the equation and then presses a Correct-button. If correct scores are added to the player.
The empty space is an EditText and the others are TextViews. Because I use a mix of TextView & EditText I need somehow to make a convertion for the program to be able to read and calculate. I've been reading like crazy and tried all kinds of different methods without success. How should I do to get around this?
This is how my data looks like:
activity_play.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/activity_play"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="#dimen/activity_vertical_margin"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
tools:context="com.example.android.laboration2.PlayActivity">
<TextView
android:id="#+id/textPlayMultiply"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignTop="#+id/textPlayNumber1"
android:layout_centerHorizontal="true"
android:text="#string/multiply"
android:textAlignment="textStart"
android:layout_gravity = "start"
android:textColor="#android:color/black"
android:textSize="40sp" />
<TextView
android:id="#+id/textPlayNumber1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignEnd="#+id/textPlayScore"
android:layout_alignParentTop="true"
android:layout_alignRight="#+id/textPlayScore"
android:layout_marginTop="48dp"
android:text="#string/number_1"
android:textAlignment="center"
android:textColor="#android:color/black"
android:textSize="50sp" />
<TextView
android:id="#+id/textPlayEqual"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="16dp"
android:text="#string/equal"
android:textAlignment="center"
android:textColor="#android:color/black"
android:textSize="50sp"
android:layout_below="#+id/editTextPlayNumber2"
android:layout_alignLeft="#+id/textPlayMultiply"
android:layout_alignStart="#+id/textPlayMultiply" />
<TextView
android:id="#+id/textPlayResult"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="29dp"
android:text="#string/result_number3"
android:textAlignment="center"
android:textColor="#android:color/black"
android:textSize="50sp"
android:layout_below="#+id/textPlayEqual"
android:layout_alignLeft="#+id/textPlayEqual"
android:layout_alignStart="#+id/textPlayEqual" />
<TextView
android:id="#+id/textPlayScore"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_marginBottom="31dp"
android:layout_toStartOf="#+id/answerButton"
android:text="#string/score_0"
android:textAlignment="textStart"
android:layout_gravity="start"
android:textColor="#android:color/black"
android:textSize="24sp"
android:layout_toLeftOf="#+id/answerButton" />
<Button
android:id="#+id/answerButton"
android:layout_width="120dp"
android:layout_height="wrap_content"
android:layout_marginTop="36dp"
android:background="#android:color/holo_orange_dark"
android:text="#string/button_result"
android:textAllCaps="false"
android:textColor="#android:color/white"
android:textSize="18sp"
android:textStyle="bold"
android:layout_below="#+id/textPlayResult"
android:layout_centerHorizontal="true" />
<EditText
android:id="#+id/editTextPlayNumber2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="#+id/textPlayMultiply"
android:layout_alignBottom="#+id/textPlayMultiply"
android:layout_marginLeft="16dp"
android:layout_marginStart="16dp"
android:layout_toEndOf="#+id/answerButton"
android:layout_toRightOf="#+id/answerButton"
android:hint=" "
android:inputType="number"
android:textAlignment="center"
android:textColor="#android:color/black"
android:textSize="50sp" />
<TextView
android:id="#+id/textPlayLevel"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="#+id/textPlayScore"
android:layout_alignBottom="#+id/textPlayScore"
android:layout_toEndOf="#+id/answerButton"
android:layout_toRightOf="#+id/answerButton"
android:text="#string/level_0"
android:textAlignment="center"
android:textColor="#android:color/black"
android:textSize="24sp" />
</RelativeLayout>
.
PlayActivity.java
package com.example.android.laboration2;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
public class PlayActivity extends AppCompatActivity implements View.OnClickListener {
TextView textPlayNumber1;
EditText editTextPlayNumber2;
TextView textPlayResult;
TextView textPlayScore;
TextView textPlayLevel;
Button answerButton;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_play);
textPlayNumber1 = (TextView) findViewById(R.id.textPlayNumber1);
editTextPlayNumber2 = (EditText) findViewById(R.id.editTextPlayNumber2);
textPlayResult = (TextView) findViewById(R.id.textPlayResult);
textPlayScore = (TextView) findViewById(R.id.textPlayScore);
textPlayLevel = (TextView) findViewById(R.id.textPlayLevel);
answerButton = (Button) findViewById(R.id.answerButton);
answerButton.setOnClickListener(this);
}//onCreate ends here
#Override
public void onClick(View v) {
}//onClick ends here
}//PlayActivity ends here
You can do
int playNumberValue = Integer.getInteger(textPlayNumber1.getText().toString());
int userInputValue = Integer.getInteger(editTextPlayNumber2.getText().toString());
int result = Integer.getInteger(textPlayResult.getText().toString());
if(result == userInputValue+playNumberValue)
//win game
Your TextView and EditText all have String type values. You have to parse those value to Integer then calculate and show the result.
Here is the action onClick answer button-
int score = 0;
#Override
public void onClick(View v) {
switch(v.getId()){
case R.id.answerButton:
int playNum1 = Integer.parseInt(textPlayNumber1.getText().toString());
int playNum2 = Integer.parseInt(editTextPlayNumber2.getText().toString());
int playResult = Integer.parseInt(textPlayResult.getText().toString());
if(playNum1*playNum2 == playResult){
score++;
textPlayScore.setText(""+score);
}
break;
}
}
Hope this helps.
I have a tab layout, number picker in the fragment doesn't seem to be working, the values remain 0 always.
Basically I am making random number app.
there are three number pickers in my fragment, one gives minimum number, one gives maximum number and one gives quantity of random numbers.
after setting these values in number picker user hits a button to get random numbers.
for me button is not doing anything when the values are set.
Please suggest me how to do this.
My fragment activity
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v7.app.AppCompatActivity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.Button;
import android.widget.NumberPicker;
import android.widget.Spinner;
import android.widget.TextView;
import android.widget.Toast;
import java.util.ArrayList;
import java.util.Collections;
public class TabFragment2 extends Fragment {
//declare Spinner object
Spinner generatorType;
Button getRandomNumberBtn;
int minimumNumber;
int maximumNumber;
int quantity1;
TextView randNumbText;
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.tab_fragment_2, container, false);
getRandomNumberBtn = (Button) view.findViewById(R.id.get_number);
NumberPicker miniText;
final TextView minimumTextView = (TextView) view.findViewById(R.id.textView3);
miniText = (NumberPicker) view.findViewById(R.id.start_number);
miniText.setMinValue(0);
miniText.setMaxValue(10000);
miniText.setWrapSelectorWheel(true);
miniText.setOnValueChangedListener(new NumberPicker.OnValueChangeListener() {
#Override
public void onValueChange(NumberPicker picker, int oldVal1, int newVal1) {
//Display the newly selected number from picker
minimumTextView.setText("Min: " + newVal1);
}
});
minimumNumber = miniText.getValue();
NumberPicker maxiText;
final TextView maximumTextView = (TextView) view.findViewById(R.id.textView2);
maxiText = (NumberPicker) view.findViewById(R.id.end_number);
maxiText.setMinValue(0);
maxiText.setMaxValue(10000);
maxiText.setWrapSelectorWheel(true);
maxiText.setOnValueChangedListener(new NumberPicker.OnValueChangeListener() {
#Override
public void onValueChange(NumberPicker picker, int oldVal2, int newVal2) {
//Display the newly selected number from picker
maximumTextView.setText("Max: " + newVal2);
}
});
maximumNumber = maxiText.getValue();
NumberPicker quantity;
final TextView quantityTextView = (TextView) view.findViewById(R.id.quantity_text);
quantity = (NumberPicker) view.findViewById(R.id.quantity_picker);
quantity.setMinValue(0);
quantity.setMaxValue(100);
quantity.setWrapSelectorWheel(true);
quantity.setOnValueChangedListener(new NumberPicker.OnValueChangeListener() {
#Override
public void onValueChange(NumberPicker picker, int oldVal3, int newVal3) {
//Display the newly selected number from picker
quantityTextView.setText("Quantity: " + newVal3);
}
});
quantity1 = quantity.getValue();
randNumbText = (TextView) view.findViewById(R.id.random_number_display);
getRandomNumberBtn.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
int b = maximumNumber + 1;
int a = minimumNumber;
int c = quantity1;
String multipleRandoms = "";
ArrayList<Integer> list = new ArrayList<Integer>();
ArrayList<Integer> list1 = new ArrayList<Integer>();
for (int i = a; i < b; i++) {
list.add(new Integer(i));
}
int k = list.size();
Collections.shuffle(list);
if (k>c) {
for (int i = 1; i <= c; i++) {
list1.add(new Integer(list.get(i)));
multipleRandoms = list1.toString();
}
}else if (k==c) {
multipleRandoms = list.toString();
} else {
Toast toast = Toast.makeText(getActivity(),"Quantity can not be greater than numbers in range", Toast.LENGTH_LONG);
toast.show();
}
randNumbText.setText(multipleRandoms);
}
});
return view;
}
My fragment layout
<?xml version="1.0" encoding="utf-8"?>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/tab_fragment_2"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:focusable="true"
android:focusableInTouchMode="true"
tools:context="com.example.tabstrial2.TabFragment2">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingTop="#dimen/activity_vertical_margin">
<LinearLayout
android:id="#+id/linear_layout1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="#id/generator_type_spinner"
android:orientation="horizontal">
<LinearLayout
android:id="#+id/linear_layout2"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:orientation="vertical">
<TextView
android:id="#+id/textView3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:layout_marginTop="10px"
android:text="Min" />
<NumberPicker
android:id="#+id/start_number"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:layout_marginBottom="20px"
android:layout_marginTop="20px" />
</LinearLayout>
<LinearLayout
android:layout_width="2px"
android:layout_height="match_parent"
android:background="#android:color/black">
</LinearLayout>
<LinearLayout
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_weight="1"
android:orientation="vertical">
<TextView
android:id="#+id/quantity_text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:layout_marginTop="10px"
android:text="Quantity" />
<NumberPicker
android:id="#+id/quantity_picker"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:layout_marginBottom="20px"
android:layout_marginTop="20px" />
</LinearLayout>
<LinearLayout
android:layout_width="2px"
android:layout_height="match_parent"
android:background="#android:color/black">
</LinearLayout>
<LinearLayout
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:orientation="vertical">
<TextView
android:id="#+id/textView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:layout_marginTop="10px"
android:text="Max" />
<NumberPicker
android:id="#+id/end_number"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_below="#+id/textView2"
android:layout_gravity="center_horizontal"
android:layout_marginBottom="20px"
android:layout_marginTop="20px" />
</LinearLayout>
</LinearLayout>
<TextView
android:id="#+id/random_number_display"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#+id/linear_layout1"
android:layout_centerHorizontal="true"
android:layout_margin="10px"
android:textColor="#android:color/black"
android:textSize="40dp" />
<Button
android:id="#+id/get_number"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#id/random_number_display"
android:layout_centerHorizontal="true"
android:background="#android:color/holo_orange_light"
android:focusable="true"
android:focusableInTouchMode="true"
android:onClick="getRandomNumber"
android:paddingLeft="20px"
android:paddingRight="20px"
android:text="Get Random Number" />
</RelativeLayout>
</ScrollView>
I have an activity that is works fine and displays data obtained from a table query. With an OnItemClick method, I have it set up so that if a row is selected, a new activity starts with a new ListView, but a lot of the elements from the original ListView are in the new listview, including a toggle button on each row, and a text view. Any idea what could be causing this?
This is the initial ListView. The buttons don't show up, just everything in the ListView:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="#81BEF7"
android:orientation="vertical" >
<Button
android:id="#+id/btnAddNurseToRoster"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/add"
android:focusable="true"/>
<Button
android:id="#+id/btnRemoveNurseFromRoster"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignTop="#+id/btnAddNurseToRoster"
android:layout_toRightOf="#+id/btnAddNurseToRoster"
android:text="#string/delete"
android:focusable="true"/>
<ListView
android:id="#+id/android:list"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_below="#+id/btnAddNurseToRoster"
android:textColor="#FFFFFF"
android:textStyle="bold"/>
</RelativeLayout>
New ListView:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#81BEF7"
android:orientation="vertical" >
<TextView
android:id="#+id/tvAssignmentsText"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:textSize="25dp"
android:textColor="#FFFFFF"
android:text="Assignments"
android:gravity="center_horizontal"
android:background="#663399"
/>
<ListView
android:id="#+id/lvAssignmentsList"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_below="#+id/tvAssignmentsText"
android:paddingTop="20dp"
android:textColor="#FFFFFF"
android:textStyle="bold"/>
</
And here's the code that calls the new ListView:
package com.deadEddie.staffingmanagement;
import android.app.Activity;
import android.database.Cursor;
import android.os.Bundle;
import android.support.v4.widget.SimpleCursorAdapter;
import android.util.Log;
import android.widget.ListAdapter;
import android.widget.ListView;
public class ShowAssignments extends Activity {
DbCommunicator getAssignmentsList;
ListView assignmentsList;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.assignments);
displayList();
}
private void displayList() {
// instantiate ListView object
assignmentsList = (ListView) findViewById(R.id.lvAssignmentsList);
// instantiate variables for CursorAdapter
int [] to = new int [] {R.id.rbAssignmentsList };
String [] from = new String [] {DbCommunicator.KEY_ROOM_NUMBER};
// instantiate getAssignmentsList with new DbCommunicator object and open
getAssignmentsList = new DbCommunicator(this);
getAssignmentsList.open();
// get and manage cursor
Cursor assignmentsCursor = getAssignmentsList.getAssignments(this);
startManagingCursor(assignmentsCursor);
// list adapter
ListAdapter assignmentsListAdapter = new SimpleCursorAdapter(this, R.layout.nurse_list, assignmentsCursor, from, to, 0);
assignmentsCursor.moveToNext();
// set ListView
assignmentsList.setAdapter(assignmentsListAdapter);
assignmentsList.setItemsCanFocus(true);
}
}
Adding the code used to populate the original ListView:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content" >
<ToggleButton
android:id="#+id/rosterDutyStatus"
android:layout_width="50dp"
android:layout_height="40dp"
android:layout_alignParentLeft="true"
android:textOff="Off Duty"
android:textOn="On Duty"
android:textSize="10dp"
android:focusable="false"/>
<TextView
android:id="#+id/rosterListLname"
android:layout_width="120dp"
android:layout_height="wrap_content"
android:layout_alignTop="#+id/rosterDutyStatus"
android:layout_toRightOf="#+id/rosterDutyStatus"
android:paddingTop="6dp"
android:textColor="#FFFFFF"
android:textSize="18dp"
android:textStyle="bold"
android:focusable="false"
android:focusableInTouchMode="false"/>
<TextView
android:id="#+id/rosterListFname"
android:layout_width="60dp"
android:layout_height="wrap_content"
android:layout_alignTop="#+id/rosterListLname"
android:layout_toRightOf="#+id/rosterListLname"
android:paddingTop="6dp"
android:textColor="#FFFFFF"
android:textStyle="bold" />
<TextView
android:id="#+id/rosterListMI"
android:layout_width="10dp"
android:layout_height="wrap_content"
android:layout_alignTop="#+id/rosterListFname"
android:layout_toRightOf="#+id/rosterListFname"
android:paddingTop="6dp"
android:textColor="#FFFFFF"
android:textStyle="bold" />
<TextView
android:id="#+id/rosterListID"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignTop="#+id/rosterListMI"
android:layout_toRightOf="#+id/rosterListMI"
android:visibility="invisible" />
<TextView
android:id="#+id/rosterViewAssignment"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_below="#+id/rosterDutyStatus"
android:paddingRight="50dp"
android:text="#string/assigned"
android:textColor="#FFFFFF"
android:textStyle="bold" />
<TextView
android:id="#+id/firstAssignment"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignTop="#+id/rosterViewAssignment"
android:layout_toRightOf="#+id/rosterViewAssignment"
android:text="#string/noAssignments"
android:textColor="#FFFFFF"
android:textStyle="bold"/>
<TextView
android:id="#+id/secondAssignment"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignTop="#+id/firstAssignment"
android:layout_toRightOf="#+id/firstAssignment"
android:textColor="#FFFFFF"
android:textStyle="bold"/>
<TextView
android:id="#+id/thirdAssignment"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignTop="#+id/secondAssignment"
android:layout_toRightOf="#+id/secondAssignment"
android:textColor="#FFFFFF"
android:textStyle="bold"/>
<TextView
android:id="#+id/fourthAssignment"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignTop="#+id/thirdAssignment"
android:layout_toRightOf="#+id/thirdAssignment"
android:textColor="#FFFFFF"
android:textStyle="bold"/>
<TextView
android:id="#+id/fifthAssignment"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignTop="#+id/fourthAssignment"
android:layout_toRightOf="#+id/fourthAssignment"
android:textColor="#FFFFFF"
android:textStyle="bold"/>
<TextView
android:id="#+id/sixthAssignment"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignTop="#+id/fifthAssignment"
android:layout_toRightOf="#+id/fifthAssignment"
android:textColor="#FFFFFF"
android:textStyle="bold"/>"
-->
</RelativeLayout>
Code that calls original layout I'm trying to change:
package com.deadEddie.staffingmanagement;
import android.app.Dialog;
import android.app.ListActivity;
import android.content.Intent;
import android.database.Cursor;
import android.os.Bundle;
import android.os.Handler;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.AdapterView;
import android.widget.Button;
import android.widget.ListAdapter;
import android.widget.ListView;
import android.widget.SimpleCursorAdapter;
import android.widget.AdapterView.OnItemClickListener;
public class EditRoster extends ListActivity implements OnClickListener {
String TAG = "EditRoster";
Button addNurse;
Button deleteNurse;
DbCommunicator rosterView;
ListView listView;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.edit_roster);
addNurse = (Button) findViewById(R.id.btnAddNurseToRoster);
deleteNurse = (Button) findViewById(R.id.btnRemoveNurseFromRoster);
displayNurseRoster();
displayDialog();
addNurse.setOnClickListener(this);
deleteNurse.setOnClickListener(this);
}
// method to put timer on dialog
public void timerDelayRemoveDialog(long time, final Dialog dialogView){
Handler handler = new Handler();
handler.postDelayed(new Runnable() {
public void run() {
dialogView.dismiss();
}
}, time);
}
private void displayDialog() {
Dialog d = new Dialog(this);
d.setTitle("Select Nurse to Adjust Assignments");
d.show();
timerDelayRemoveDialog(2000, d);
}
public void displayNurseRoster(){
listView = (ListView) findViewById(android.R.id.list);
// int variables filled with NURSE_TABLE data
int[] to_nurseTable = new int[] {
// int list for data from NURSE_TABLE fields
R.id.rosterDutyStatus,
R.id.rosterListLname,
R.id.rosterListFname,
R.id.rosterListMI,
R.id.rosterListID,
// int list for data from ASSIGNMENTS_TABLE fields
R.id.firstAssignment};
// String array holding data fields from NURSE_TABLE
String[] from_nurseTable = new String [] {
// fields from NURSE_TABLE
DbCommunicator.KEY_DUTY_STATUS,
DbCommunicator.KEY_LNAME,
DbCommunicator.KEY_FNAME,
DbCommunicator.KEY_MI,
DbCommunicator.KEY_NURSE_ROWID,
DbCommunicator.KEY_ROOM_NUMBER};
// instantiate instance of DbCommunicator object
rosterView = new DbCommunicator(this);
// open instance
rosterView.open();
// get & manage cursor for NURSE_TABLE data
Cursor nurseTableCursor = rosterView.getNurseRosterCursor(this);
startManagingCursor(nurseTableCursor);
// instantiate cursor adaptor
ListAdapter nurseTableAdapter = new SimpleCursorAdapter(this,
R.layout.nurse_list, nurseTableCursor, from_nurseTable, to_nurseTable);
nurseTableCursor.moveToNext();
// set listView
listView.setAdapter(nurseTableAdapter);
rosterView.close();
listView.setItemsCanFocus(true);
listView.setOnItemClickListener(new OnItemClickListener(){
#Override
public void onItemClick(AdapterView<?> parent, View view, int position,
long id) {
Log.i(TAG, "onItemClickListener set");
Intent showAssignments = new Intent("com.deadEddie.staffingmanagement.SHOWASSIGNMENTS");
startActivity(showAssignments);
}
});
}// displayNurseRoster()
#Override
public void onClick(View v)
{
switch (v.getId())
{
case R.id.btnAddNurseToRoster:
Intent add = new Intent("com.deadEddie.staffingmanagement.ADDNURSETOROSTER");
startActivity(add);
break;
case R.id.btnRemoveNurseFromRoster:
break;
} // switch
}
}
Okay. Got it. Just realized that I mistakenly used the same layout (nurse_list) when I instantiate the ListAdapter in each method so it tried to apply my new data query to the original layout (which was screwed up of course). Thanks for taking a look though, really appreciate it.
Sorry if this wastes anyone's time. Maybe a lesson for other newbies out there.
I have a problem concerning setting a listener that would execute different action based on the clicked button.
The compiler doesn't detect any error on the syntax, but the problem is that when I simulate my app on the emulator, it pops up the window asking for "Force Close".
Here is my Java file :
package tp.imc.namespace;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
public class IMCCalculatorActivity extends Activity {
EditText poids,taille;
Button boutton1,boutton2;
TextView text1;
Boolean k=true;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
poids=(EditText) findViewById(R.id.poids);
taille=(EditText) findViewById(R.id.taille);
boutton1 =(Button) findViewById(R.id.boutton1);
text1=(TextView) findViewById(R.id.text1);
boutton1.setOnClickListener(clicker);
boutton2.setOnClickListener(clicker);
}
// declare a OnClickListener that will execute different actions
// depending on the view that was clicked
View.OnClickListener clicker = new View.OnClickListener(){
public void onClick (View v){
if( v == boutton1 )
{
String a,b;
Double r;
a=poids.getText().toString();
b=taille.getText().toString();
Double zero=Double.parseDouble(b);
a=poids.getText().toString();
b=taille.getText().toString();
if (zero==0)
{
text1.setText("Erreur ! Division par 0.");
}
else {
r=(Double.parseDouble(a))/(Double.parseDouble(b)*Double.parseDouble(b));
if (r<16.5) text1.setText("Famine.");
else if (r>16.5 && r<18.5) text1.setText("Maigreur.");
else if (r>=18.5 && r<25) text1.setText("Coplulence nomrale.");
else if (r>=25 && r<30) text1.setText("Surpoids.");
else if (r>=30 && r<35) text1.setText("Obésité modérée.");
else if (r>=35 && r<40) text1.setText("Obésité sévère.");
else if (r>=40) text1.setText("Obésité morbide ou massive.");
}
}
else if( v == boutton2 )
{
poids.setText("");
taille.setText("");
text1.setText("");
}
}
};
}
And here is my XML file :
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical">
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="#string/poids"
android:textColor="#FF0000"
android:gravity="center"
/>
<EditText
android:id="#+id/poids"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:hint="#string/poids"
android:lines="1"
/>
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="#string/taille"
android:textColor="#FF0000"
android:gravity="center"
/>
<EditText
android:id="#+id/taille"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:hint="#string/taille"
android:lines="1"
/>
<RadioGroup
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal" >
<RadioButton
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:checked="true"
android:text="#string/metre"
/>
<RadioButton
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/centimetre"
/>
</RadioGroup>
<CheckBox
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/mega"
android:checked="false"
/>
<Button
android:id="#+id/boutton1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="#string/compute" />
<Button
android:id="#+id/boutton2"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="#string/raz" />
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="#string/resultat"
/>
<TextView
android:id="#+id/text1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="#string/text"
/>
</LinearLayout>
You don't define boutton2, it is null. Add this:
boutton2 = (Button) findViewById(R.id.boutton2);
boutton2.setOnClickListener(clicker);
Since boutton1 and boutton2 don't have common code between them you could simply create two different listeners.
Lastly, this line doesn't look right.
if( v == boutton1 )
You are trying to compare a View to a Button which may not work. Try this:
if( v.getId() == boutton1.getId() )