image - Error in else value on android -
i want change visibility when special status
so else
else { imageview image_a_wrong = (imageview)findviewbyid(r.id.imageview1); image_a_wrong.setvisibility(view.gone); } but appear error on eclipse.
do know why ?
my imageview
<imageview android:id="@+id/imageview1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:src="@drawable/quo100px" android:visibility="gone" />
tks advance all
here complete file
package com.example.androidhive;
import java.util.arraylist; import java.util.hashmap; import java.util.list;
import org.apache.http.namevaluepair; import org.json.jsonarray; import org.json.jsonexception; import org.json.jsonobject;
import android.app.listactivity; import android.app.progressdialog; import android.content.intent; import android.os.asynctask; import android.os.bundle; import android.util.log; import android.view.view; import android.widget.adapterview; import android.widget.adapterview.onitemclicklistener; import android.widget.imageview; import android.widget.listadapter; import android.widget.listview; import android.widget.simpleadapter; import android.widget.textview;
public class quopapiercord extends listactivity {
// progress dialog private progressdialog pdialog; // creating json parser object jsonparser jparser = new jsonparser(); arraylist<hashmap<string, string>> productslist; // url products list private static string url_all_products_quo = >"http://192.168.1.81/php/android/get_all_quotidiens.php"; // json node names private static final string tag_success = "success"; private static final string tag_products = "products"; private static final string tag_pid = "pid"; private static final string tag_name = "name"; private static final string tag_price = "price"; private static string tag_cu = "cu"; // products jsonarray jsonarray products = null; @override public void oncreate(bundle savedinstancestate) { super.oncreate(savedinstancestate); setcontentview(r.layout.quotidiens); // hashmap listview productslist = new arraylist<hashmap<string, string>>(); // loading products in background thread new loadallproducts().execute(); // listview listview lv = getlistview(); // on seleting single product // launching edit product screen lv.setonitemclicklistener(new onitemclicklistener() { @override public void onitemclick(adapterview<?> parent, view view, int position, long id) { // getting values selected listitem string pid = ((textview) >view.findviewbyid(r.id.pid)).gettext() .tostring(); // starting new intent intent in = new intent(getapplicationcontext(), editproductactivity.class); // sending pid next activity in.putextra(tag_pid, pid); // starting new activity , expecting response startactivityforresult(in, 100); } }); } // response edit product activity @override protected void onactivityresult(int requestcode, int resultcode, intent data) { super.onactivityresult(requestcode, resultcode, data); // if result code 100 if (resultcode == 100) { // if result code 100 received // means user edited/deleted product // reload screen again intent intent = getintent(); finish(); startactivity(intent); } } /** * background async task load product making http request * */ class loadallproducts extends asynctask<string, string, string> { /** * before starting background thread show progress dialog * */ @override protected void onpreexecute() { super.onpreexecute(); pdialog = new progressdialog(quopapiercord.this); pdialog.setmessage("loading products. please wait..."); pdialog.setindeterminate(false); pdialog.setcancelable(false); pdialog.show(); } /** * getting products url * */ protected string doinbackground(string... args) { // building parameters list<namevaluepair> params = new arraylist<namevaluepair>(); // getting json string url jsonobject json = jparser.makehttprequest(url_all_products_quo, >"get", params); // check log cat json reponse log.d("all products: ", json.tostring()); try { // checking success tag int success = json.getint(tag_success); if (success == 1) { // products found // getting array of products products = json.getjsonarray(tag_products); // looping through products (int = 0; < products.length(); i++) { jsonobject c = products.getjsonobject(i); // storing each json item in variable string id = c.getstring(tag_pid); string name = c.getstring(tag_name); string price = c.getstring(tag_price); string cu = c.getstring(tag_cu); ///////////// if (cu.equals("1")) { cu = "oui"; } else { imageview image_a_wrong = (imageview) >findviewbyid(r.id.imageview1); image_a_wrong.setvisibility(view.gone); } // creating new hashmap hashmap<string, string> map = new >hashmap<string, string>(); // adding each child node hashmap key => >value map.put(tag_pid, id); map.put(tag_name, name); map.put(tag_price, price); map.put(tag_cu, cu); // adding hashlist arraylist productslist.add(map); } } else { // no products found // launch add new product activity intent = new intent(getapplicationcontext(), newproductactivity.class); // closing previous activities i.addflags(intent.flag_activity_clear_top); startactivity(i); } } catch (jsonexception e) { e.printstacktrace(); } return null; } /** * after completing background task dismiss progress dialog * **/ protected void onpostexecute(string file_url) { // dismiss dialog after getting products pdialog.dismiss(); // updating ui background thread runonuithread(new runnable() { public void run() { /** * updating parsed json data listview * */ listadapter adapter = new simpleadapter( quopapiercord.this, productslist, r.layout.list_item, new string[] { >tag_pid, tag_name, >tag_price, tag_cu}, new int[] { r.id.pid, r.id.name, >r.id.price, r.id.cu }); // updating listview setlistadapter(adapter); } }); } }}
<?xml version="1.0" encoding="utf-8"?> <linearlayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="wrap_content" android:orientation="horizontal" android:padding="5px" android:stretchcolumns="1"> <!-- product id (pid) - hidden - used pass other activity --> <textview android:id="@+id/pid" android:layout_width="fill_parent" android:layout_height="wrap_content" android:visibility="gone" /> <!-- name label --> <textview android:id="@+id/name" android:layout_width="fill_parent" android:layout_height="wrap_content" android:paddingright="10px" android:textsize="17sp" android:layout_marginright="10px" android:layout_weight="0.2" android:textcolor="#fff" android:gravity="left" /> <!-- price label --> <textview android:id="@+id/price" android:layout_width="fill_parent" android:layout_height="wrap_content" android:paddingright="5px" android:textsize="17sp" android:layout_marginright="5px" android:layout_weight="0.2" android:textcolor="#c00000" android:gravity="left" android:textstyle="bold" /> <imageview android:id="@+id/imageview1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:src="@drawable/quo100px"/> <textview android:id="@+id/cu" android:layout_width="fill_parent" android:layout_height="wrap_content" android:paddingright="5px" android:textsize="17sp" android:layout_marginright="5px" android:layout_weight="0.2" android:textcolor="#c00000" android:gravity="left" android:textstyle="bold" /> <textview android:id="@+id/mc" android:layout_width="fill_parent" android:layout_height="wrap_content" android:paddingright="5px" android:textsize="17sp" android:layout_marginright="5px" android:layout_weight="0.2" android:textcolor="#c00000" android:gravity="left" android:textstyle="bold" /> <textview android:id="@+id/tel" android:layout_width="fill_parent" android:layout_height="wrap_content" android:paddingright="5px" android:textsize="17sp" android:layout_marginright="5px" android:layout_weight="0.2" android:textcolor="#c00000" android:gravity="left" android:textstyle="bold" /> </linearlayout>
seeing error here, can't access ui (textview, edittext, imageview, etc) inside doinbackgroud. on either onpostexecute or onprogressupdate method
edit: change
if (cu.equals("1")) { cu = "oui"; } else { imageview image_a_wrong = (imageview) findviewbyid(r.id.imageview1); image_a_wrong.setvisibility(view.gone); } to
if (cu.equals("1")) { cu = "oui"; } else { cu = "pas"; } then add onpostexecute()
edit 2: seeing code i've narrowed error. above code must like
declare string cu globally , try follwing
imageview image_a_wrong = (imageview) findviewbyid(r.id.imageview1); if(cu.equals("pas")) { image_a_wrong.setvisibility(view.gone); } else { image_a_wrong.setvisibility(view.gone); }
Comments
Post a Comment