i am having two different arraylist of diffrent size,my problem is that i have to retrieve values from both the list and show that on to a textview,when i am using two loops it is first completing the inner loop and than executing outer loop and the vales are getting printed two times and if using break to break the inner loop it is completely ignoring inner loop after 1st loop.
ArrayList<LocationDto>location = new ArrayList<>();
education<EducationDto> = new ArrayList<>();
if (education.size() != 0) {
for (int j = 0; j < education.size(); j++) {
for (int k = 0; k < location.size(); k++) {
if (!education.get(j).getSpecializationTitle().equalsIgnoreCase("") && !location.get(k).getLocationName().equalsIgnoreCase("")) {
tvEducation.append(education.get(j).getEducationTitle() + "(" + education.get(j).getSpecializationTitle() + ")" + " Located at " + location.get(k).getLocationName());
} else if (education.get(j).getSpecializationTitle().equalsIgnoreCase("") && !location.get(k).getLocationName().equalsIgnoreCase("")) {
tvEducation.append(education.get(j).getEducationTitle() + " Located at " + location.get(j).getLocationName());
} else if (!education.get(j).getSpecializationTitle().equalsIgnoreCase("") && location.get(k).getLocationName().equalsIgnoreCase("")) {
tvEducation.append(education.get(j).getEducationTitle() + "(" + education.get(j).getSpecializationTitle() + ")");
} else {
tvEducation.append(education.get(j).getEducationTitle());
}
if (j != education.size() - 1) {
tvEducation.append(" , ");
}
break;
}
}
} else {
tvEducation.setText("Not Specified");
tvEducation.setTextColor(getResources().getColor(R.color.color_three));
}
what should i do now?
The break statement terminates a loop regardless of whether it has completed or not, so your problem is that you've put a break directly inside your inner for loop without some sort of condition. Therefore the first time the loop runs it will reach the break which is why it's terminating on the first iteration!
You probably mean to put the break inside the last if statement?
Related
I need to add views programmatically to FlexboxLayout and for each view added check if it created a new row or not.
How can I get Row count?
Tried:
for (int i = 0; i < 100; i++) {
flexboxlayout.add(createView(this.getContext(), i));
//log
Log.e("position: " + i + " ; row count -> " + flexboxlayout.getFlexLines().size());
}
getFlexLines method does not always return the expected Line count.
I am populating new data in my RecyclerView adapter all at once, so there are no insert or remove one item actions.
So simply, i have an old list and when some Event occurs i get the new list and i can assign the new list to the old.
Problems are i cannot make properly the animation for each item in the old list
when item has new position in the new list (should notifyItemMoved from old position to new)
when there is a new item in the new list (should notifyItemInserted with that position in the new list)
when the old item is not present in the new list (should notifyItemRemoved with that position)
Here is something i have now, which i thought will work for first case - item move to new position:
if(currentAdapterData!= null){
for(int i = 0; i < currentAdapterData.size(); i++){
for(int j = 0; j < newData.size(); j++){
if(currentAdapterData.get(i).getSomeIdentifier().equals(newData.get(j).getSomeIdentifier())){
Log.v("same item", "currentAdapterData index :" + i + " ," + currentAdapterData.get(i).getSomeIdentifier() + " == newData index: " + j + " ," + newData.get(j).getSomeIdentifier());
if(i != j){
notifyItemMoved(i, j);
}
}
}
}
}
currentAdapterData = newData;
However it does not work as expected, and there is difference between logs(which are correct) and the list appearing on the phone(with wrong items positions, some duplicates, buggy etc.)
So how can i make it work? With notifyItemMoved, notifyItemInserted and notifyItemRemoved?
I don't want to just use NofifyDataSetChanged, because it refresh the entire list instead of just updating the items with animations that have changed.
It looks like that your new data is also a form of list, not a single item. I think this could be a good candidate for using DiffUtil in the support library.
Here is also a nice tutorial for it.
It will allow you to calculate the difference in the new data and only update needed fields. It will also offload the work asynchronously.
You just need to implement a DiffUtil.Callback to indicate if your items are the same or the contents are the same.
You update your recyclerView like that:
DiffUtil.DiffResult diffResult = DiffUtil.calculateDiff(diffCallback);
diffResult.dispatchUpdatesTo(yourAdapter);
Simply use DiffUtil like
final MyDiffCallback diffCallback = new MyDiffCallback(prevList, newList);
final DiffUtil.DiffResult diffResult = DiffUtil.calculateDiff(diffCallback);
Create a Callback by extending MyDiffCallback and override methods and do as needed.
public class MyDiffCallback extends DiffUtil.Callback
// override methods
Well for this ,I feel this would be the easiest.Just follow it ->
Replace this
if(currentAdapterData!= null){
for(int i = 0; i < currentAdapterData.size(); i++){
for(int j = 0; j < newData.size(); j++){
if(currentAdapterData.get(i).getSomeIdentifier().equals(newData.get(j).getSomeIdentifier())){
Log.v("same item", "currentAdapterData index :" + i + " ," + currentAdapterData.get(i).getSomeIdentifier() + " == newData index: " + j + " ," + newData.get(j).getSomeIdentifier());
if(i != j){
notifyItemMoved(i, j);
}
}
}
}
}
currentAdapterData = newData;
with
if(currentAdapterData!= null){
for(int i = 0; i < currentAdapterData.size(); i++){
for(int j = 0; j < newData.size(); j++){
if(currentAdapterData.get(i).getSomeIdentifier().equals(newData.get(j).getSomeIdentifier())){
Log.v("same item", "currentAdapterData index :" + i + " ," + currentAdapterData.get(i).getSomeIdentifier() + " == newData index: " + j + " ," + newData.get(j).getSomeIdentifier());
if(i != j){
notifyDataSetChanged();
new CountDownTimer(250, 250) {
#Override
public void onTick(long millisUntilFinished) {
Log.d("millisUntilFinished", "" + millisUntilFinished);
}
#Override
public void onFinish() {
notifyItemMoved(i, j);
}
}.start();
}
}
}
}
}
this will update the values and after 250 millisecond(1/4th a second),the value with be moved with animation.
Recently i was creating my own live-template, i was customizing for loop, here is how default for loop is given in live-template.
for(int $INDEX$ = 0; $INDEX$ < $LIMIT$; $INDEX$++) {
$END$
}
but i want my method's first argument inplace of $LIMIT$, how can i do that?
public void getList(ArrayList<String> list)
{
}
then my for loop shoulde be
for(int i = 0; i < list.size; i++) {
...
}
I have seen template of logm, but it is printing all arguments of method
groovyScript("'\"' + _1.collect { it + ' = [\" + ' + it + ' + \"]'}.join(', ') + '\"'", methodParameters())
You can add the following live template:
for(int $INDEX$ = 0; $INDEX$ < $VAR$.size(); $INDEX$++){
$END$
}
Then go to right button "Edit variables" and put the following predefined methods in the expressions fields:
You can find all predefined methods in Jetbrains documentation
hi i have problem in displaying a value into my TextView..
For example i will input 1,2,3,4 then i like to display the output in this manner in my TextView..How can i do that? please help me, thank you in advance
1 appeared 1 times
2 appeared 1 times
3 appeared 1 times
4 appeared 1 times
here's my code:
String []values = ( sum.getText().toString().split(","));
double[] convertedValues = new double[values.length];
Arrays.sort(convertedValues);
int i=0;
int c=0;
while(i<values.length-1){
while(values[i]==values[i+1]){
c++;
i++;
}
table.setText(values[i] + " appeared " + c + " times");
c=1;
i++;
if(i==values.length-1)
table.setText(values[i] + " appeared " + c + " times");
Make your textView to support multipleLines and after that create in code a StringBuffer and append to it the results, something like
resultString.append(result).append(" appeared").append(c).append(" times\n");
after that you set text for textView like:
textView.setText(resultString.toString());
Here is the idea :
// this is test string, you can read it from your textView
String []values = ( "2, 1, 3, 5, 1, 2".toString().split(","));
int [] intValues = new int[values.length];
// convert string values to int
for (int i = 0; i < values.length; ++i) {
intValues[i] = Integer.parseInt(values[i].trim());
}
// sort integer array
Arrays.sort(intValues);
StringBuilder output = new StringBuilder();
// iterate and count occurrences
int count = 1;
// you don't need internal loop, one loop is enough
for (int i = 0; i < intValues.length; ++i) {
if (i == intValues.length - 1 || intValues[i] != intValues[i + 1]) {
// we found end of "equal" sequence
output.append(intValues[i] + " appeared " + count + " times\n");
count = 1; // reset count
} else {
count++; // continue till we count all equal values
}
}
System.out.println(output.toString()); // prints what you extected
table.setText(output.toString()); // display output
I am automating a product using Robotium. In a module I have to validate the data derived.
For that I am using this code:
class sharefirstlevel {
public void A {
for(int k=1;k<=4;k+=2) {
ExpectedResult = solo.clickInList(k);
for (int i = 0; i < ExpectedResult.size(); i++) {
Actualvalues[i] += ExpectedResult.get(i).getText().toString() + " ";
solo.scrollListToLine(0, k);
ExpectedResult=solo.clickInList(1);
Actualvalues[i] += ExpectedResult.get(i).getText().toString() + " ";
ExpectedResult = solo.clickInList(2);
Actualvalues[i] += ExpectedResult.get(i).getText().toString() + " ";
Log.d("xyz","Values of the Strings are"+Actualvalues[i].toString());
}
}
}
}
Its extracting the values selected to an array.
Now when its derived, to validate I am using this code:
class sharedLevel {
public void B {
for(int i=0; i <= sharefirstlevel.Actualvalues.length; i++) {
Log.d("xyz","Values are:"+sharefirstlevel.Actualvalues[i]);
actual=solo.searchText(sharefirstlevel.Actualvalues[i]);
assertEquals(expected, actual);
Log.d("xyz","Values are:"+sharefirstlevel.Actualvalues[i]);
}
}
}
The values are getting extracted to the array and when printed, the proper values are getting inseted to the array and are even getting passed to another class.
But the execution of the junit test case will be successful only for 1 or 2 times. But from then i am getting a null pointer exception. Please help me. Am at a fix!!
The first value while getting inserted to the ArrayList itself is null. Here is the Code:
for(int k=1;k<=4;k+=2)
{
ExpectedResult = solo.clickInList(k);
for (int i = 0; i < ExpectedResult.size(); i++)
{
Actualvalues[i] += ExpectedResult.get(i).getText().toString() + " ";
solo.scrollListToLine(0, k);
ExpectedResult=solo.clickInList(1);
Actualvalues[i] += ExpectedResult.get(i).getText().toString() + " ";
ExpectedResult = solo.clickInList(2);
Actualvalues[i] += ExpectedResult.get(i).getText().toString() + " ";
Log.d(" ","Values of the Strings are"+Actualvalues[i].toString());
}
}
The value getting inserted at the first line within the for loop itself is null. Hence the problem.
But I am not getting, why null value is being inserted at 0th position. Please help me out for solutions.
In your sharedLevel class, change:
for(int i=0; i <= sharefirstlevel.Actualvalues.length; i++)
to:
for(int i=0; i < sharefirstlevel.Actualvalues.length; i++)
Since your counter starts at 0, it should less than the length of your array.