I am using android studio. Code Java. I bring the data in the json file to listview. When I press the increase and decrease button, I want to bring it to the textview. I just want to increase or decrease the number of products I click. I couldn't access the buttons and textview inside the listview. How can I do it?
try {
JSONObject obj=new JSONObject(LoadFromJsonAssets());
Resources resources = context.getResources();
JSONArray array =obj.getJSONArray("domestic");
HashMap<String,String> list;
ArrayList<HashMap<String,String>> arrayList=new ArrayList<>();
for (int i=0;i<array.length();i++){
JSONObject o=array.getJSONObject(i);
String productName=o.getString("productName");
String productPrice=o.getString("productPrice");
String productPic=o.getString("productPic");
final int resourceId = resources.getIdentifier(productPic, "drawable", context.getPackageName());
Drawable drawable = resources.getDrawable(resourceId);
Bitmap bitmap = BitmapFactory.decodeResource(context.getResources(), resourceId);
list= new HashMap<>();
list.put("productName",productName);
list.put("productPrice",productPrice);
list.put("productPic",Integer.toString(resourceId) );
arrayList.add(list);
}
final ListAdapter adapter= new SimpleAdapter(this,arrayList,R.layout.list_view_design,new String[]{"productName","productPrice","productPic"},new int[]{R.id.productName,R.id.productPrice,R.id.productPic});
listView.setAdapter(adapter);
listview design:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
android:orientation="vertical"
android:layout_margin="10dp"
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="100dp">
<ImageView
android:layout_marginLeft="3dp"
android:id="#+id/productPic"
android:layout_width="60dp"
android:layout_height="60dp"
android:layout_alignParentStart="true"
android:layout_centerInParent="true">
</ImageView>
<LinearLayout
android:layout_marginLeft="5dp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:layout_marginRight="25dp"
android:layout_toLeftOf="#+id/lin2"
android:layout_toRightOf="#id/productPic"
android:orientation="vertical">
<TextView
android:id="#+id/productName"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Product Name"
android:textSize="20dp"
android:textStyle="bold"></TextView>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal">
<TextView
android:id="#+id/productPrice"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="5dp"
android:text="Product price"></TextView>
<TextView
android:id="#+id/turkishlira"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="3dp"
android:layout_marginTop="5dp"
android:text="₺"></TextView>
</LinearLayout>
</LinearLayout>
<LinearLayout
android:id="#+id/lin2"
android:orientation="horizontal"
android:layout_alignParentRight="true"
android:layout_centerInParent="true"
android:layout_marginRight="10dp"
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
<ImageView
android:id="#+id/decreasing "
android:layout_marginRight="10dp"
android:src="#drawable/negative"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
</ImageView>
<TextView
android:layout_gravity="center"
android:id="#+id/counterrrr"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="0"
android:textSize="15dp"
></TextView>
<ImageView
android:id="#+id/Increasing"
android:layout_marginLeft="10dp"
android:src="#drawable/positive"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
</ImageView>
</LinearLayout>
</RelativeLayout>
Sorry but I cannot comment. Does the below not work?
Find it by:
final TextView textViewCounter = (TextView) rowView.findViewById(R.id.counterrrr);
and then set the text as needed:
// could be wrongly typed, just from the top of my head.
String currentCount = textViewCounter.getText();
int newCount = Integer.parseInt(currentCount) +/- 1;
textViewCounter.setText(String.valueOf(newCount));
Related
I wrote a little code, but I had a problem. Error that I encounter as: android.widget.RelativeLayout cannot be cast to androidx.recyclerview.widget.RecyclerView
I looked at the questions that look like this, but the answers that were given did not solve my problem. Can you help me?
Java code as:
public class Fehrest extends AppCompatActivity {
DatabaseManager dbManager = new DatabaseManager();
int tedad,tedad_fav;
private String[] Name, Text,Image,seen, English, Farsi;
private int[] id,fav,id_sen;
Items items = new Items();
SharedPreferences sharedP;
RecyclerView recyclerView;
Story_Adapter adapter;
ArrayList<Book_Items> MyArrayList = new ArrayList<>();
String button_name,tbl_name="story_tbl";
TextView txt_toolbar,txt_sen;
BrokenView brokenView;
BrokenTouchListener listener;
EditText edt_search;
LinearLayout lin_main;
RelativeLayout rlt_buttons;
boolean night_mode,show_english=true;
int day=0,date_mod,today;
Button btn_love,btn_pand,btn_tanz,btn_mazhabi;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.movies_list);
recyclerView = findViewById(R.id.rcl_movies);
edt_search = findViewById(R.id.edt_search);
rlt_buttons = findViewById(R.id.rlt_buttons);
txt_toolbar = findViewById(R.id.txt_toolbar);
lin_main = findViewById(R.id.lin_main);
txt_sen = findViewById(R.id.txt_sen);
btn_love = findViewById(R.id.btn_love);
btn_pand = findViewById(R.id.btn_pand);
btn_mazhabi = findViewById(R.id.btn_mazhabi);
btn_tanz = findViewById(R.id.btn_tanz);
brokenView = BrokenView.add2Window(Fehrest.this);
listener = new BrokenTouchListener.Builder(brokenView).build();
sharedP = getSharedPreferences(Items.SETTINGS, Context.MODE_PRIVATE);
night_mode = sharedP.getBoolean(Items.NIGHT_MODE,false);
today = sharedP.getInt(Items.TODAY,0);
date_mod = sharedP.getInt(Items.DATE_MODIFIED,0);
day = (today - date_mod);
get_night();
Get_sentence();
adapter = new Story_Adapter(this, MyArrayList);
recyclerView.setLayoutManager(new LinearLayoutManager(Fehrest.this,LinearLayoutManager.VERTICAL,false));
recyclerView.setAdapter(adapter);
button_name = getIntent().getStringExtra("button");
and this my xml code:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".Fehrest"
android:orientation="vertical"
android:id="#+id/lin_main"
android:background="#drawable/background4">
<LinearLayout
android:id="#+id/lin_toolbar"
android:layout_width="match_parent"
android:layout_height="70dp"
android:layout_marginBottom="8dp"
android:background="#color/nephritis"
android:orientation="horizontal"
android:padding="5dp"
android:weightSum="7"
>
<EditText
android:id="#+id/edt_search"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_weight="6"
android:background="#drawable/textviewstyle2"
android:gravity="center"
android:hint="جستجو..."
android:padding="4dp"
android:textColorHint="#color/White"
android:textColor="#color/White"
android:visibility="gone"/>
<TextView
android:id="#+id/txt_toolbar"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_weight="6"
android:text="لیست خانوائخ خاا"
android:textColor="#color/White"
android:textSize="21sp"
android:fontFamily="#font/medium"/>
<ImageView
android:id="#+id/img_search"
android:layout_width="0dp"
android:layout_height="50dp"
android:layout_gravity="center"
android:layout_weight="1"
android:src="#drawable/magnify"
android:onClick="img_search_click"/>
</LinearLayout>
<androidx.recyclerview.widget.RecyclerView
android:id="#+id/rcl_movies"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="8dp"
android:visibility="gone"/>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/rlt_buttons">
<ScrollView
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<RelativeLayout
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="20dp"
android:layout_marginTop="10dp"
android:layout_marginRight="20dp"
android:orientation="horizontal">
<TextView
android:id="#+id/txt_sen"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:layout_gravity="center"
android:layout_marginStart="20dp"
android:layout_marginTop="15dp"
android:layout_marginEnd="20dp"
android:background="#drawable/textviewstyle"
android:fontFamily="#font/zahraroosta"
android:padding="8dp"
android:text="Sentence"
android:textColor="#color/description"
android:textSize="20sp"
android:textStyle="bold" />
<Button
android:id="#+id/btn_love"
android:layout_width="290dp"
android:layout_height="70dp"
android:layout_below="#id/txt_sen"
android:layout_alignParentStart="true"
android:layout_alignParentEnd="true"
android:layout_gravity="center"
android:layout_marginStart="20dp"
android:layout_marginTop="10dp"
android:layout_marginEnd="20dp"
android:background="#drawable/back_btn3"
android:fontFamily="#font/boldmayriad"
android:onClick="btn_click"
android:paddingEnd="40dp"
android:text="#string/euphorbiaceae"
android:textAllCaps="false"
android:textColor="#color/White"
android:textSize="24sp" />
This is part of my MLX code and the tags are not closed for this reason.
I have this weird issue with my rating bar stars.
This is my app in vertical position
This is my app in horizontal position
As you can see the stars completely change
This is my xml file:
<?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:layout_width="wrap_content"
android:layout_height="wrap_content"
android:paddingBottom="#dimen/activity_vertical_margin"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
android:background="#drawable/main"
tools:context="com.example.draganam.blankapp.Nivo1Activity">
<TableLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:shrinkColumns="1,0" android:stretchColumns="0,1">
<TableRow
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:paddingTop="50dp">
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/slika0"
android:src="#drawable/becutan1"
android:layout_column="0"
android:layout_marginRight="40px" />
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/slika1"
android:src="#drawable/blizoo1"
android:layout_column="1" />
</TableRow>
<TableRow
android:layout_width="match_parent"
android:layout_height="match_parent">
<RatingBar
android:id="#+id/rb0"
style="?android:attr/ratingBarStyleIndicator"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:numStars="5"
android:stepSize="1.0"
android:isIndicator="true"
android:scaleX="0.7"
android:scaleY="0.7"/>
<RatingBar
android:id="#+id/rb1"
style="?android:attr/ratingBarStyleIndicator"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:numStars="5"
android:stepSize="1.0"
android:isIndicator="true"
android:scaleX="0.7"
android:scaleY="0.7"/>
</TableRow>
<TableRow
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingTop="50dp">
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/slika2"
android:src="#drawable/brilijant1"
android:layout_column="0"
android:layout_marginRight="40px" />
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/slika3"
android:src="#drawable/vitaminka1"
android:layout_column="1" />
</TableRow>
<TableRow
android:layout_width="match_parent"
android:layout_height="match_parent">
<RatingBar
android:id="#+id/rb2"
style="?android:attr/ratingBarStyleIndicator"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:numStars="5"
android:stepSize="1.0"
android:isIndicator="true"
android:scaleX="0.7"
android:scaleY="0.7"/>
<RatingBar
android:id="#+id/rb3"
style="?android:attr/ratingBarStyleIndicator"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:numStars="5"
android:stepSize="1.0"
android:isIndicator="true"
android:scaleX="0.7"
android:scaleY="0.7"/>
</TableRow>
</TableLayout>
</RelativeLayout>
This is my java code:
Context ctx2 = this;
String[][] arrayWithInformations = new String[5][];
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_nivo1);
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
DatabaseOperations databaseOperations = new DatabaseOperations(ctx2);
Cursor cursorLogo = databaseOperations.getInformationsForLogos(databaseOperations);
// looping through all rows and adding to list
Integer i = 0;
if (cursorLogo.moveToFirst()) {
do {
String[] helperArray = {cursorLogo.getString(0),cursorLogo.getString(1),cursorLogo.getString(2),cursorLogo.getString(3),
cursorLogo.getString(4),cursorLogo.getString(5)};
arrayWithInformations[i] = helperArray;
i++;
} while (cursorLogo.moveToNext());
}
int firstRating = Integer.parseInt(arrayWithInformations[0][4]);
int secondRating = Integer.parseInt(arrayWithInformations[1][4]);
int thirdRating = Integer.parseInt(arrayWithInformations[2][4]);
int fourthRating = Integer.parseInt(arrayWithInformations[3][4]);
RatingBar rb0 = (RatingBar) findViewById(R.id.rb0);
rb0.setRating(firstRating);
RatingBar rb1 = (RatingBar) findViewById(R.id.rb1);
rb1.setRating(secondRating);
RatingBar rb2 = (RatingBar) findViewById(R.id.rb2);
rb2.setRating(thirdRating);
RatingBar rb3 = (RatingBar) findViewById(R.id.rb3);
rb3.setRating(fourthRating);
I get the rating values from database file and everything works fine , the stars are ok but when I rotate the phone they are all wrong. I know that when u rotate your phone the current activity gets loaded again, but it's the same code and it loads wrong. Maybe it's multiplying the stars.. I may sound funny but I have no idea what is going wrong. Someone please give me a lead..
I found out the problem !
android:shrinkColumns="1,0" android:stretchColumns="0,1"
Setting this to the TableLayout caused this strange issue.
Thanks everyone for your interest in helping me ..
I'm trying to generate form elements from a template when the user clicks on a button. I created the template and the container layout for the new forms with XML. Its successfully generating the first form where I'm telling it to generate, but when I try to generate more forms beyond the first one its giving me an error: "the specified child already has a parent. You must call removeView() on the child's first parent". Any clue as to what I should do so as to generate more than one element? I've tried changing the id of the newly created forms but that's giving me a null pointer exception and crashing. Thank you.
public class MakeQuestion extends Activity implements OnClickListener{
private static final int MY_BUTTON = 9000;
int templateID = 1;
Button b;
Button target;
View insertPoint;
Button testTemplate;
View v1;
RelativeLayout.LayoutParams templateParams;
LayoutInflater vi;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.make_question);
Initialize();
}
public void Initialize(){
//button for adding new forms
b = (Button) findViewById(R.id.makeLayoutButton);
b.setOnClickListener(this);
//get the template form to be duplicated
vi = (LayoutInflater) getApplicationContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
v1 = vi.inflate(R.layout.form_template, null);
//set the params for the element that will have dynamically generated content below it
templateParams = new RelativeLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
//container where forms will be contained in
insertPoint = findViewById(R.id.questionsContainer);
//view where new form will go below
View belowContainer = findViewById(R.id.questionTemplateFake);
//set id for layout params of view
belowContainer.setId(1);
//set rule for new forms to go below view 'belowContainer'
templateParams.addRule(RelativeLayout.BELOW, belowContainer.getId());
}
public void onClick(View v) {
switch (v.getId()) {
case R.id.makeLayoutButton:
v1 = vi.inflate(R.layout.form_template, null);
//add view to the insertPoint
((LinearLayout) insertPoint).addView(v1);
break;
}
}
}
Added forms should go in "questionsContainer" which is set to be below "questionTemplateFake"
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:android1="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#drawable/grey_background" >
<RelativeLayout
android:id="#+id/relativeLayout1"
android:layout_width="wrap_content"
android:layout_height="50dp"
android:layout_alignParentLeft="true"
android:layout_alignParentRight="true"
android:layout_alignParentTop="true"
android:background="#8B459A"
android:baselineAligned="false"
android:clipToPadding="false" >
<ImageView
android:id="#+id/imageView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:src="#drawable/logo_small" />
<ImageView
android:id="#+id/imageView3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_centerVertical="true"
android:layout_marginRight="15dp"
android:src="#drawable/settings" />
<ImageView
android:id="#+id/imageView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_centerVertical="true"
android:layout_marginLeft="15dp"
android:src="#drawable/search" />
</RelativeLayout>
<ScrollView
android:id="#+id/scrollView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentRight="true"
android:layout_below="#+id/relativeLayout1" >
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:gravity="center"
android:orientation="vertical" >
<RelativeLayout
android:id="#+id/relative12"
android:layout_width="270dp"
android:layout_height="wrap_content"
android:orientation="vertical" >
<TextView
android:id="#+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="10dp"
android:text="WHAT IS YOUR QUESTION?" />
<TextView
android:id="#+id/textView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="#+id/save_button"
android:layout_alignBottom="#+id/save_button"
android:layout_alignRight="#+id/textView1"
android:text="ADD PICTURE OR VIDEO"
android:textSize="10sp" />
<EditText
android:id="#+id/editText1"
android:layout_width="match_parent"
android:layout_height="25dp"
android:layout_alignParentLeft="true"
android:layout_below="#+id/textView1"
android:layout_marginTop="14dp"
android:background="#drawable/textlines"
android:ems="10"
android:hint="50 WORDS OR LESS"
android:inputType="textMultiLine"
android:paddingLeft="5dp" />
<Button
android:id="#+id/save_button"
android:layout_width="75dp"
android:layout_height="20dp"
android:layout_alignParentRight="true"
android:layout_below="#+id/editText1"
android:layout_marginTop="16dp"
android:background="#drawable/purplebutton"
android:text="BROWSE"
android:textColor="#drawable/button_text_color"
android:textSize="10sp" />
<TextView
android:id="#+id/TextView01"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_below="#+id/save_button"
android:layout_marginTop="25dp"
android:text="CREATE AN ANSWER" />
<RelativeLayout
android:id="#+id/questionTemplateFake"
android:layout_width="wrap_content"
android:layout_height="60dp"
android:layout_alignParentLeft="true"
android:layout_below="#+id/TextView01" >
<Button
android:id="#+id/Button02eew"
android:layout_width="75dp"
android:layout_height="20dp"
android:layout_alignParentBottom="true"
android:layout_alignParentRight="true"
android:background="#drawable/purplebutton"
android:text="BROWSE"
android:textColor="#drawable/button_text_color"
android:textSize="10sp" />
<EditText
android:id="#+id/EditText02"
android:layout_width="match_parent"
android:layout_height="25dp"
android:layout_above="#+id/Button02"
android:layout_alignParentLeft="true"
android:background="#drawable/textlines"
android:ems="10"
android:hint="50 WORDS OR LESS"
android:inputType="textMultiLine"
android:paddingLeft="5dp" >
<requestFocus />
</EditText>
<TextView
android:id="#+id/TextView03"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_marginRight="19dp"
android:layout_toLeftOf="#+id/Button02"
android:text="ADD PICTURE OR VIDEO"
android:textSize="10sp" />
</RelativeLayout>
<LinearLayout
android:id="#+id/questionsContainer"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="80dp"
android:layout_marginTop="20dp"
android:orientation="vertical"
android:layout_below="#+id/questionTemplateFake"
>
</LinearLayout>
</RelativeLayout>
</LinearLayout>
</ScrollView>
<Button
android:id="#+id/makeLayoutButton"
android:layout_width="100dp"
android:layout_height="20dp"
android:layout_alignParentRight="true"
android:layout_below="#+id/scrollView1"
android:layout_marginRight="17dp"
android:layout_marginTop="79dp"
android:background="#drawable/purplebutton"
android:text="MORE OPTIONS"
android:textColor="#drawable/button_text_color"
android:textSize="10sp" />
</RelativeLayout>
You are trying to add the same instance over and over again. Thus the message that "specific child already exists". You would have to create a new template layout instance with different ID (I suppose) and then try to add it in.
So rather than:
((RelativeLayout) insertPoint).addView(v1, templateParams);
and adding v1 again. Create a new instance
v1 = vi.inflate(R.layout.form_template, null);
set the id for good measures and then add it again in view.
I suppose you don't need to set the id, but you can read more about how id's work here
I have some problems with this code.
I'm trying to create a dynamically list of news with this format:
|image| - title
|image|- subtitle
this is my little cicle code (a example with random data)
void setListNews(List<Map<String,String>>l){
listaNewsPagina = l;
final Iterator ite = listaNewsPagina.iterator();
LinearLayout lin = (LinearLayout)findViewById(R.id.linear_sezione_news);
LinearLayout lineare = (LinearLayout)findViewById(R.id.lineare);
while(ite.hasNext()){
Map<String,String> map = (Map<String, String>) ite.next();
ImageView imm = (ImageView)findViewById(R.id.immagine);
RelativeLayout rl = (RelativeLayout)findViewById(R.id.relative);
TextView titolo = (TextView)findViewById(R.id.titolo);
TextView sottoTitolo = (TextView)findViewById(R.id.sottoTitolo);
titolo.setText("titolooooo");
sottoTitolo.setText("sottoTitoloooooooooooo");
rl.addView(titolo);
rl.addView(sottoTitolo);
lineare.addView(imm);
lineare.addView(rl);
}
lin.addView(lineare);
setContentView(lin);
and this is my layout:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/linear_sezione_news"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#drawable/background_homepage" >
<LinearLayout
android:id="#+id/lineare"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#aadd99"
>
<ImageView
android:id="#+id/immagine"
android:layout_width="50dp"
android:layout_height="50dp"
android:layout_marginBottom="4dp"
android:layout_marginLeft="4dp"
android:layout_marginRight="10dp"
android:layout_marginTop="4dp"
android:src="#drawable/ic_launcher" />
<RelativeLayout
android:id="#+id/relative"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginBottom="4dp"
android:layout_marginLeft="4dp"
android:layout_marginRight="10dp"
android:layout_marginTop="4dp"
android:background="#abfc99">
<TextView
android:id="#+id/titolo"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="20dp" />
<TextView
android:id="#+id/sottoTitolo"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#+id/titolo"
android:textSize="13dp" />
</RelativeLayout>
</LinearLayout>
<ListView
android:id="#+id/listViewNews"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_above="#+id/ImageButtonPrecc"
android:layout_alignParentLeft="true"
android:layout_below="#+id/lineare"
android:alpha="0.8"
android:background="#aadd99"
android:clickable="true"
android:padding="10dp"
android:textAlignment="center" >
</ListView>
<ImageButton
android:id="#+id/ImageButtonPrecc"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
android:layout_alignParentLeft="true"
android:src="#drawable/bottone_prev"
android:text="#string/load_news" />
<ImageButton
android:id="#+id/ImageButtonSucc"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentRight="true"
android:src="#drawable/bottone_next"
android:text="#string/load_news" />
</RelativeLayout>
when I launch the activity with this code I have this problem:
05-19 09:12:45.780: E/AndroidRuntime(21729): java.lang.ClassCastException: android.widget.RelativeLayout cannot be cast to android.widget.LinearLayout
I'm trying to create a layout with only Java code...but nothing XD
where I'm wrong?
Change
LinearLayout lin = (LinearLayout)findViewById(R.id.linear_sezione_news);
to
RelativeLayout lin = (RelativeLayout)findViewById(R.id.linear_sezione_news);
The id linear_sezione_news is assigned to a RelativeLayout so you can't cast it to LinearLayout
Hi i'm using eclipse for deveoping this android app. I'm inflating a layout using inflator and everything works fine.. I'm adding those inflated items one by one to another layout, so when the device's orientation is changed, all those inflated items are gone. The application seems like it has been restarted. But some values are still remaining.. Please help..
public void addNewItem() {
LayoutInflater li = (LayoutInflater)getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View item = li.inflate(R.layout.activity_order_items, null);
orderItemFrameView.add(item);
itemsLayout.addView(item);
setAdditionalFonts(item);
}
private void setAdditionalFonts(View view) {
TextView lblNameTak = (TextView)view.findViewById(R.id.tak_itemNo);
AutoCompleteTextView txtNameTak = (AutoCompleteTextView)view.findViewById(R.id.tak_itemName);
ImageView barScan = (ImageView)view.findViewById(R.id.barcode_scan);
TextView lblRate = (TextView)view.findViewById(R.id.tak_lblRate);
TextView lblQty = (TextView)view.findViewById(R.id.tak_lblQty);
TextView lblTotal = (TextView)view.findViewById(R.id.tak_lblTotal);
TextView rate = (TextView)view.findViewById(R.id.tak_Rate);
EditText2 qty = (EditText2)view.findViewById(R.id.tak_Qty);
TextView total = (TextView)view.findViewById(R.id.tak_Total);
qty.totTextView = total;
qty.rateTextView = rate;
qty.orderTake = this;
qty.index = orderItemFrameView.size() - 1;
qty.sqlDb = SqlDb;
qty.itemName = txtNameTak;
setupBarcodeScan(barScan);
Typeface tf = Typeface.createFromAsset(getAssets(), "fonts/ubuntu-l.ttf");
Typeface tf2 = Typeface.createFromAsset(getAssets(), "fonts/calibri.ttf");
Typeface tf3 = Typeface.createFromAsset(getAssets(), "fonts/ubu-r.ttf");
Typeface tf4 = Typeface.createFromAsset(getAssets(), "fonts/tahoma.ttf");
lblNameTak.setTypeface(tf3);
txtNameTak.setTypeface(tf2);
lblRate.setTypeface(tf2);
lblQty.setTypeface(tf2);
lblTotal.setTypeface(tf2);
lblNameTak.setText("Item " + (qty.index + 1));
DbAdapterItem dbItem;
TextAdapterItem txtItem;
dbItem = new DbAdapterItem(this, SqlDb);
txtItem = new TextAdapterItem(dbItem, this, qty);
txtNameTak.setAdapter(txtItem);
txtNameTak.setOnItemClickListener(txtItem);
txtNameTak.requestFocus();
}
all these items created by addNewItem() are vanished...
here is the layout from which i'm inflating...
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom ="22dp"
tools:context=".OrderItems" >
<FrameLayout
android:layout_width="match_parent"
android:background= "#888888"
android:layout_height="98dp" >
<TextView
android:id="#+id/tak_itemNo"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginRight="15dp"
android:layout_marginTop="2.7dp"
android:text="Item 1"
android:layout_gravity="right"
android:textColor="#DDDDDD" />
<LinearLayout
android:layout_width="match_parent"
android:layout_marginTop="22dp"
android:orientation="vertical"
android:background= "#FFFFFF"
android:layout_height="75dp" >
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal" >
<AutoCompleteTextView
android:id="#+id/tak_itemName"
android:imeOptions="actionUnspecified"
android:imeActionLabel="search"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginRight="0dp"
android:layout_weight="1.06"
android:completionThreshold="1"
android:ems="10"
android:hint="Item Name / Barcode"
android:inputType="textCapWords"
android:singleLine="true"
android:textColorHint="#DDDDDD" />
<ImageView
android:id="#+id/barcode_scan"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:paddingLeft="7dp"
android:paddingRight="7dp"
android:paddingTop="6dp"
android:src="#android:drawable/ic_menu_camera" />
</LinearLayout>
<FrameLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal" >
<FrameLayout
android:layout_width="100dp"
android:layout_height="wrap_content"
android:layout_gravity="left"
>
<TextView
android:id="#+id/tak_lblRate"
android:layout_width="wrap_content"
android:layout_marginLeft="7dp"
android:layout_height="wrap_content"
android:textColor="#555555"
android:textSize="10sp"
android:text="Rate" />
<TextView
android:id="#+id/tak_Rate"
android:layout_width="match_parent"
android:layout_marginTop="12dp"
android:layout_marginRight="15dp"
android:layout_height="wrap_content"
android:gravity="right"
android:textSize="16sp"
android:text="0.00" />
</FrameLayout>
<FrameLayout
android:layout_width="100dp"
android:layout_height="wrap_content"
android:layout_gravity="center"
>
<TextView
android:id="#+id/tak_lblQty"
android:layout_width="wrap_content"
android:layout_gravity="center_horizontal"
android:layout_marginRight="7dp"
android:layout_height="wrap_content"
android:textColor="#555555"
android:textSize="10sp"
android:text="Qty" />
<com.sayka.ordergadget.EditText2
android:id="#+id/tak_Qty"
android:layout_width="match_parent"
android:layout_marginBottom="-4dp"
android:layout_marginTop="4dp"
android:inputType="numberDecimal"
android:imeOptions="actionNext"
android:layout_marginLeft="12dp"
android:layout_height="wrap_content"
android:gravity="center"
android:textSize="16sp"
android:text="0.0" />
</FrameLayout>
<FrameLayout
android:layout_width="100dp"
android:layout_height="wrap_content"
android:layout_gravity="right"
>
<TextView
android:id="#+id/tak_lblTotal"
android:layout_width="wrap_content"
android:layout_marginLeft="7dp"
android:layout_gravity="left"
android:layout_height="wrap_content"
android:textColor="#555555"
android:textSize="10sp"
android:text="Total" />
<TextView
android:id="#+id/tak_Total"
android:layout_width="match_parent"
android:layout_gravity="right"
android:layout_marginTop="12dp"
android:layout_marginRight="15dp"
android:layout_height="wrap_content"
android:gravity="right"
android:textSize="16sp"
android:text="0.00" />
</FrameLayout>
</FrameLayout>
</LinearLayout>
</FrameLayout>
It's normal behaviour and you are correct. the activity is recreated from scratch on rotation.
If you want something to persist. store it during onSaveInstanceState in the provided bundle.
then during onCreate check to see if the bundle is null, if it isn't, pull your data out and add the view elements again.
Alternatively you can fudge it and state in the manifest that your activity will handle orientation/configuration changes.