Develop Reference

what is wrong in this first item in gridlayout?

In this code i am able to create gridlayout. but the first item is in default view and the rest is like what i want. I try debug and I couldn't see what is wrong. Would you help me to solve this.
question="this is a sentence";
String sLetter;
String question = question.replace(" ", "");
//char[] charAr = question.toCharArray();
final ArrayList<String> letters = new ArrayList<>();
for (int k = 0; k < question.length(); k++) {
sLetter = Character.toString(question.charAt(k));
letters.add(sLetter);
}
Collections.sort(letters);
int i;
for (i = 0; i < letters.size();) {
int count = recursiveMethod(letters,i,1);
if (count>0) {
//region text add
View main_view = new View(context);
main_view.setLayoutParams(new LinearLayout.LayoutParams(100, ViewGroup.LayoutParams.WRAP_CONTENT));
gridLayout.setColumnCount(7);
if (question.length()<=7){
gridLayout.setRowCount(1);
}else if (question.length()<12){
gridLayout.setRowCount(2);
}else {
gridLayout.setRowCount(3);
}
GridLayout.Spec colSpan = GridLayout.spec(GridLayout.UNDEFINED,1);
GridLayout.Spec rowSpan = GridLayout.spec(GridLayout.UNDEFINED, 1);
GridLayout.LayoutParams gridParam = new GridLayout.LayoutParams(
rowSpan, colSpan);
gridParam.setGravity(Gravity.FILL_HORIZONTAL);
gridParam.setMargins(5, 10, 5, 10);
final TextView tv = new TextView(context);
tv.setText(letters.get(i).toUpperCase());
tv.setId(i);
tv.setPadding(15, 15, 15, 15);
tv.setTextColor(getResources().getColor(R.color.colorPrimaryLight));
RelativeLayout.LayoutParams relTv = new RelativeLayout.LayoutParams(80, ViewGroup.LayoutParams.WRAP_CONTENT);
relTv.addRule( RelativeLayout.CENTER_HORIZONTAL);
relTv.addRule( RelativeLayout.CENTER_VERTICAL);
tv.setLinksClickable(true);
tv.setTextSize(0, 60);
//tv.setLayoutParams(relTv);
CardView cardView = new CardView(context);
cardView.setCardBackgroundColor(getResources().getColor(R.color.colorPrimaryDark));
cardView.setRadius(10);
cardView.setCardElevation(5);
RelativeLayout relativeLayout = new RelativeLayout(context);
relativeLayout.setLayoutParams(new RelativeLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT));
final TextView textCount = new TextView(context);
textCount.setText(Integer.toString(count));
RelativeLayout.LayoutParams relParam = new RelativeLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
relParam.addRule(RelativeLayout.ALIGN_BOTTOM, i);
relParam.addRule(RelativeLayout.RIGHT_OF, i);
textCount.setTypeface(Typeface.DEFAULT_BOLD);
textCount.setTextColor(getResources().getColor(R.color.colorPrimaryLight));
textCount.setTextSize(0, 30);
textCount.setPadding(0,5,5,0);
//textCount.setLayoutParams(relParam);
relativeLayout.addView(tv,relTv);
relativeLayout.addView(textCount,relParam);
cardView.addView(relativeLayout);
//llLetters.addView(tv, lp);
gridLayout.addView(cardView,gridParam);
cardView.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Toast.makeText(context, tv.getText()+ "" + textCount.getText(), Toast.LENGTH_SHORT).show();
}
});
//llLetters.addView(gridLayout);
//endregion
i = i + count;
}
else {
i++;
}
}
The first letter of image is at the top left. I want to show that at the bottom right side of the letter. Would you help me to solve problem? Thanks =)

The problem lies here:
relParam.addRule(RelativeLayout.ALIGN_BOTTOM, i);
relParam.addRule(RelativeLayout.RIGHT_OF, i);
If you pass a zero to addRule, it is interpreted as false. Therefore you say, that ALIGN_BOTTOM should be false in your first letter, when i is zero.
See the documentation:
parameter: subject, int: the ID of another view to use as an anchor, or a boolean value (represented as RelativeLayout.TRUE for true or 0 for false).

Dynamic Layout issue adding padding in layout

I have a LinearLayout object and want to dynamically change the background image with a dynamically adding image object (it changes its color dynamically).
here is the code :
if (categoryResponse != null && categoryResponse.result != null
&& categoryResponse.result.length > 0) {
int i = 0;
category = new TextView[categoryResponse.result.length];
for (Category cat : categoryResponse.result) {
category[i] = new TextView(getActivity());
LinearLayout.LayoutParams par = new LinearLayout.LayoutParams(
LayoutParams.MATCH_PARENT,
LayoutParams.WRAP_CONTENT);
par.setMargins(0, 10, 0, 0);
category[i].setLayoutParams(par);
category[i].setGravity(Gravity.CENTER);
category[i].setText(cat.name);
category[i].setTag(cat.id);
category[i].setPadding(0, 10, 0, 10);
category[i].setTextSize(25);
category[i].setBackgroundResource(R.drawable.category);
category[i].setTypeface(Global.AppsFont);
category[i].setTextColor(getResources().getColor(
R.color.white));
main.addView(category[i]);
//System.out.println("header textview width = " +category[i].getWidth() + "");
category[i].setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
String id = (String) v.getTag();
for (Entry<String, LinearLayout> entry : channels
.entrySet()) {
if (entry.getKey().equals(id)) {
entry.getValue().setVisibility(
View.VISIBLE);
} else
entry.getValue().setVisibility(
View.GONE);
}
}
});
i++;
LinearLayout LLM = null;
LLM = new LinearLayout(getActivity());
channels.put(cat.id, LLM);
LLM.setOrientation(LinearLayout.VERTICAL);
LLM.setVisibility(View.GONE);
LinearLayout.LayoutParams LLParamsm = new LinearLayout.LayoutParams(
LayoutParams.MATCH_PARENT,
LayoutParams.MATCH_PARENT);
LLParamsm.setMargins(0, 0, 0, 0);
LLM.setPadding(0, 0, 0, 0);
LLM.setLayoutParams(LLParamsm);
LLM.setBackgroundResource(R.drawable.category_bg);
main.addView(LLM);
LinearLayout LL = null;
int j = 0;
ChannelResponse channelResponse = JsonUtils
.getChannel(cat.id);
channelResponseData.put(cat.id, channelResponse);
if (channelResponse != null
&& channelResponse.result != null
&& channelResponse.result.length > 0) {
for (Channel chan : channelResponse.result) {
if (j % 2 == 0) {
LL = new LinearLayout(getActivity());
LinearLayout.LayoutParams LLParams = new LinearLayout.LayoutParams(
LayoutParams.MATCH_PARENT,
LayoutParams.MATCH_PARENT);
LL.setOrientation(LinearLayout.HORIZONTAL);
LL.setWeightSum(1);
LL.setLayoutParams(LLParams);
LLM.addView(LL);
}
Button chn = new Button(getActivity());
LinearLayout.LayoutParams ladderFLParams = new LinearLayout.LayoutParams(
LayoutParams.MATCH_PARENT,
LayoutParams.MATCH_PARENT, 0.5f);
ladderFLParams.setMargins(10, 10, 10, 10);
chn.setBackgroundResource(R.drawable.gray_selector);
chn.setGravity(Gravity.CENTER);
chn.setLayoutParams(ladderFLParams);
chn.setText(chan.name);
chn.setTag(chan.id);
chn.setTextSize(25);
chn.setTextColor(getResources().getColor(
R.color.black));
chn.setTypeface(Global.AppsFont);
chn.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
channelIdid = (String) v.getTag();
createDialogBox(v);
}
});
LL.addView(chn);
channel.add(chn);
j++;
}
if (j % 2 != 0) {
Button chn = new Button(getActivity());
LinearLayout.LayoutParams ladderFLParams = new LinearLayout.LayoutParams(
LayoutParams.MATCH_PARENT,
LayoutParams.WRAP_CONTENT, 0.5f);
ladderFLParams.setMargins(10, 10, 10, 10);
chn.setBackgroundResource(R.drawable.gray_selector);
chn.setGravity(Gravity.CENTER_HORIZONTAL
| Gravity.CENTER_VERTICAL);
chn.setLayoutParams(ladderFLParams);
chn.setVisibility(View.INVISIBLE);
chn.setTextSize(25);
chn.setTextColor(getResources().getColor(
R.color.black));
chn.setTypeface(Global.AppsFont);
LL.addView(chn);
channel.add(chn);
}
}
}
}'

9-patch images automatically add the padding that is built into the 9-patch, as padding to the view. Thus when you call LLM.setPadding(0, 0, 0, 0) that is being overridden when you call LLM.setBackgroundResource.
Here is the doc about 9-patches: http://developer.android.com/guide/topics/graphics/2d-graphics.html#nine-patch
If you don't want padding, your best option would be to design your 9-patch without padding, in other words with both the drawable and stretchable areas going to the edge of the image.
I suppose you could also try calling setPadding after setBackgroundResource, but I'm not sure if that would work. Really you should just design your background with your desired padding in mind.
Does that make sense?

create layout programmatically and save it as bitmap android

I have code to create view programmatically like this ,
splash.post(new Runnable() {
#Override
public void run() {
processFromDatabase();
}
});
splash is my parent view , and this is processFromDatabase Code
private void processFromDatabase() {
createLayoutBook("food_name", "80000", "food_des","", 2);
Bitmap bmp = merge();
saveToLocal2(bmp);
}
and this is my code for createLayoutBook ,
private void createLayoutBook(String food_name, String food_price,String food_des, String path, int tag) {
Log.e("create layout book", "Create layout book");
RelativeLayout root_2book = new RelativeLayout(c);
RelativeLayout.LayoutParams rlp_a = new RelativeLayout.LayoutParams(
LayoutParams.FILL_PARENT, ((int) TypedValue.applyDimension(
TypedValue.COMPLEX_UNIT_DIP, 120, c.getResources()
.getDisplayMetrics())));
rlp_a.setMargins(0, 10, 0, 0);
root_2book.setLayoutParams(rlp_a);
root_2book.setBackgroundColor(c.getResources().getColor(R.color.krem));
RelativeLayout layout_detail_2book = new RelativeLayout(c);
RelativeLayout.LayoutParams rdet = new RelativeLayout.LayoutParams(
LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT);
rdet.addRule(RelativeLayout.RIGHT_OF, layout_a_2book.getId());
rdet.setMargins(20, 3, 0, 0);
layout_detail_2book.setLayoutParams(rdet);
TextView tv_nama_2book = new TextView(c);// nama
tv_nama_2book.setId(id_book);
id_book = id_book + 1;
RelativeLayout.LayoutParams tv_nama = new RelativeLayout.LayoutParams(
LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
tv_nama_2book.setLayoutParams(tv_nama);
tv_nama_2book.setTextSize(20);
tv_nama_2book.setTypeface(Typeface.DEFAULT_BOLD);
tv_nama_2book.setText(food_name);
Log.e("food name", food_name);
getSharedPreferences("myprefs", 0).edit().putString("food_name", food_name).commit();
TextView tv_des_2book = new TextView(c); // des
RelativeLayout.LayoutParams tv_des = new RelativeLayout.LayoutParams(
LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
tv_des.addRule(RelativeLayout.BELOW, tv_nama_2book.getId());
tv_des.setMargins(0, 3, 5, 0);
tv_des_2book.setLayoutParams(tv_des);
tv_des_2book.setTextSize(12);
tv_des_2book.setTextColor(c.getResources().getColor(R.color.hitam));
tv_des_2book.setText(food_des);
Log.e("food des", food_des);
getSharedPreferences("myprefs", 0).edit().putString("food_des", food_des).commit();
layout_detail_2book.addView(tv_nama_2book);
layout_detail_2book.addView(tv_des_2book);
root_2book.addView(layout_detail_2book);
splash.addView(root_2book);
and this is code for change this layout to bitmap
public Bitmap merge() {
View v1 = splash;
v1.setDrawingCacheEnabled(true);
Bitmap merge = Bitmap.createBitmap(v1.getDrawingCache());
v1.setDrawingCacheEnabled(false);
return merge;
}
But why , it return with black screen , like my layout that I created before not save or missing , any solution?? thanks

I believe what you want something like this:
public Bitmap merge() {
Bitmap bitmap = Bitmap.createBitmap(...);
Canvas canvas = new Canvas(bitmap);
splash.draw(canvas);
return bitmap;
}

saving value of edittext in dynamic layout android

I have created dynamic layout that picks out data from xml and then create layout based on that.
I want to retain what I have written in in edittext and hence get the filled value.
But I am not getting success.
public void generateFields()
{
ll.removeAllViewsInLayout();
for(;i<=GenericXMLParser.nooffields;)
{
for(int j=i;j<i+3 ;j++)
{
if((j+1)>GenericXMLParser.nooffields)
{
break;
}
if(isonphone.get(j).equalsIgnoreCase("false"))
{
Log.i("isonphone", isonphone.get(j));
TextView textview = new TextView(this);
textview.setText(field.get(j));
textview.setTextSize(30);
textview.setTextColor(Color.parseColor("#000000"));
ll.addView(textview);
if(typefield.get(j).equalsIgnoreCase("text"))
{
LinearLayout.LayoutParams llp = new LinearLayout.LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT);
llp.setMargins(0, 5, 0, 15); // llp.setMargins(left, top, right, bottom);
EditText et = new EditText(this);
et.setHint(field.get(j));
et.setTextSize(30);
et.setLayoutParams(llp);
et.setTextColor(Color.parseColor("#000000"));
et.setBackgroundResource(R.drawable.genericedittext);
ll.addView(et);
savePreferences("field"+j,et.getText().toString().trim());
texts.add(et.getText().toString().trim());
Toast.makeText(getApplicationContext(), "field"+i+texts, 1).show();
}
else if(typefield.get(j).equalsIgnoreCase("boolean"))
{
LinearLayout.LayoutParams llp = new LinearLayout.LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT);
llp.setMargins(0, 5, 0, 15); // llp.setMargins(left, top, right, bottom);
RadioGroup rg = new RadioGroup(this);
RadioButton rb1 = new RadioButton(this);
RadioButton rb2 = new RadioButton(this);
rg.setOrientation(RadioGroup.HORIZONTAL);
rg.setLayoutParams(llp);
rb1.setText("Yes");
rb2.setText("No");
rb1.setTextColor(Color.parseColor("#000000"));
rb2.setTextColor(Color.parseColor("#000000"));
rb1.setTextSize(30);
rb2.setTextSize(30);
rg.addView(rb1);
rg.addView(rb2);
ll.addView(rg);
}
else if(typefield.get(j).equalsIgnoreCase("numeric"))
{
LinearLayout.LayoutParams llp = new LinearLayout.LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT);
llp.setMargins(0, 5, 0, 15); // llp.setMargins(left, top, right, bottom);
EditText et = new EditText(this);
et.setHint(field.get(j));
et.setTextSize(30);
et.setLayoutParams(llp);
et.setInputType(InputType.TYPE_CLASS_NUMBER);
et.setTextColor(Color.parseColor("#000000"));
et.setBackgroundResource(R.drawable.genericedittext);
ll.addView(et);
}
}
this.setContentView(rl);
}
break;
}
//Toast.makeText(getApplicationContext(), "i="+i, 1).show();
if(i>GenericXMLParser.nooffields)
{
//Take me to the summary page.
Intent gmsIntent = new Intent(getApplicationContext(),
//GateManagementActivity.class);
GateManagementActivity.class);
gmsIntent.putExtra("userId", userId);
gmsIntent.putExtra("clientId", clientId);
startActivity(gmsIntent);
}
i+=3;
}

SetOnClickListener to change view in List Linearlayout

i have created list linearlayout with my code
String[] name = {"Chicken", "Beef", "Milk" ,"Juice"};
final Integer[] price = {10, 50, 5, 3};
final Integer[] qty = {1, 2, 5, 5};
listOrder.removeAllViews();
LinearLayout.LayoutParams image = new LinearLayout.LayoutParams(Utility.getDip(175, CartActivity.this), Utility.getDip(70, CartActivity.this));
LinearLayout.LayoutParams text = new LinearLayout.LayoutParams(Utility.getDip(140, CartActivity.this), Utility.getDip(80, CartActivity.this));
LinearLayout.LayoutParams textQty = new LinearLayout.LayoutParams(Utility.getDip(100, CartActivity.this), Utility.getDip(80, CartActivity.this));
LinearLayout.LayoutParams textPrice = new LinearLayout.LayoutParams(Utility.getDip(125, CartActivity.this), Utility.getDip(80, CartActivity.this));
LinearLayout.LayoutParams textTotal = new LinearLayout.LayoutParams(Utility.getDip(130, CartActivity.this), Utility.getDip(80, CartActivity.this));
LinearLayout.LayoutParams editImage = new LinearLayout.LayoutParams(Utility.getDip(40, CartActivity.this), Utility.getDip(40, CartActivity.this));
for(int i = 0; i < 4; i++){
list = new LinearLayout(ctx);
list.setOrientation(LinearLayout.HORIZONTAL);
//if((i % 2) == 0) list.setBackgroundColor(R.color.bg_grey);
listImage = new ImageView(ctx);
//listImage.setImageDrawable(getResources().getDrawable(R.drawable.sample_logo_publisher));
listImage.setBackgroundColor(getResources().getColor(R.color.bg_grey));
listImage.setAdjustViewBounds(Boolean.TRUE);
listImage.setScaleType(ScaleType.FIT_XY);
image.gravity = Gravity.CENTER;
image.setMargins(Utility.getDip(10, CartActivity.this), 0, Utility.getDip(10, CartActivity.this), 0);
list.addView(listImage, image);
listText = new TextView(ctx);
listText.setText(name[i]);
listText.setGravity(Gravity.CENTER);
text.gravity = Gravity.CENTER;
text.setMargins(Utility.getDip(10, CartActivity.this), 0, 0, 0);
list.addView(listText, text);
listQty = new TextView(ctx);
listQty.setText(qty[i].toString());
listQty.setGravity(Gravity.CENTER);
textQty.gravity = Gravity.CENTER;
textQty.setMargins(Utility.getDip(5, CartActivity.this), 0, Utility.getDip(5, CartActivity.this), 0);
list.addView(listQty, textQty);
listPrice = new TextView(ctx);
listPrice.setText(price[i].toString());
listPrice.setGravity(Gravity.CENTER_VERTICAL);
textPrice.gravity = Gravity.CENTER;
list.addView(listPrice, textPrice);
Integer total = qty[i]*price[i];
listTotal = new TextView(ctx);
listTotal.setText(total.toString());
listTotal.setGravity(Gravity.CENTER_VERTICAL);
textTotal.gravity = Gravity.CENTER;
textTotal.setMargins(Utility.getDip(5, CartActivity.this), 0, Utility.getDip(2, CartActivity.this), 0);
list.addView(listTotal, textTotal);
plus = new ImageView(ctx);
plus.setImageDrawable(getResources().getDrawable(R.drawable.plus));
plus.setAdjustViewBounds(Boolean.TRUE);
plus.setScaleType(ScaleType.FIT_XY);
editImage.gravity = Gravity.CENTER;
list.addView(plus, editImage);
final int pos = i;
plus.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
qty[pos] = qty[pos] + 1;
listQty.setText(qty[pos].toString());
listTotal.setText(""+ (qty[pos]*price[pos]));
}
});
minus = new ImageView(ctx);
minus.setImageDrawable(getResources().getDrawable(R.drawable.min));
minus.setAdjustViewBounds(Boolean.TRUE);
minus.setScaleType(ScaleType.FIT_XY);
editImage.gravity = Gravity.CENTER;
list.addView(minus, editImage);
remove = new ImageView(ctx);
remove.setImageDrawable(getResources().getDrawable(R.drawable.trash));
remove.setAdjustViewBounds(Boolean.TRUE);
remove.setScaleType(ScaleType.FIT_XY);
editImage.gravity = Gravity.CENTER;
list.addView(remove, editImage);
listOrder.addView(list);
}
I want to add quantity when onclick on plus image. But when i clicked plus image in the list, textQty changed in end of the list, not in the same list that I have clicked the image.
how to fix my code?

You need to link the TextViews and button together. They don't know they are in the same iteration of the for loop.
You could put each set of buttons and textviews into an array when you go through your loop.
Then in your onClickListener you would for do something like:
for(int i = 0; i < buttonArray.length; i++){
if(v == buttonArray[i]){
// make whatever changes to TextViews at index i
}
}

I have resolved my problem. Here is my code ...
I set id in listQty and listTotal
listQty = new TextView(ctx);
listQty.setId(99000+i);
listQty.setText(qty[i].toString());
listQty.setGravity(Gravity.CENTER);
textQty.gravity = Gravity.CENTER;
textQty.setMargins(Utility.getDip(5, CartActivity.this), 0, Utility.getDip(5, CartActivity.this), 0);
list.addView(listQty, textQty);
listTotal = new TextView(ctx);
listTotal.setId(98000+i);
listTotal.setText(total.toString());
listTotal.setGravity(Gravity.CENTER_VERTICAL);
textTotal.gravity = Gravity.CENTER;
textTotal.setMargins(Utility.getDip(5, CartActivity.this), 0, Utility.getDip(2, CartActivity.this), 0);
list.addView(listTotal, textTotal);
and in clicklistener set variable of listQty and listTotal
plus = new ImageView(ctx);
plus.setImageDrawable(getResources().getDrawable(R.drawable.plus));
plus.setAdjustViewBounds(Boolean.TRUE);
plus.setScaleType(ScaleType.FIT_XY);
editImage.gravity = Gravity.CENTER;
list.addView(plus, editImage);
final int pos = i;
plus.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
listQty = (TextView)findViewById(99000+pos);
listTotal = (TextView)findViewById(98000+pos);
qty[pos] = qty[pos] + 1;
listQty.setText(qty[pos].toString());
listTotal.setText(""+ (qty[pos]*price[pos]));
}
});