Plezse help me !
I' lm trying to create database On Android using PHP and mySQL ,
this my code: the app give me : unfortunately stopped ! Im following this link :
http://www.androidhive.info/2012/05/how-to-connect-android-with-php-mysql/
all_products.xml :
<?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="fill_parent"
android:orientation="vertical">
<!-- Main ListView
Always give id value as list(@android:id/list)
-->
<ListView
android:id="@id/android:list"
android:layout_width="fill_parent"
android:layout_height="wrap_content"/>
</LinearLayout>package com.example.ashraf.androidhive;
/**
* Created by ASHRAF on 11/3/2015.
*/
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
//import android.R;
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.ListAdapter;
import android.widget.ListView;
import android.widget.SimpleAdapter;
import android.widget.TextView;
public class AllProductsActivity extends ListActivity {
// Progress Dialog
private ProgressDialog pDialog;
// Creating JSON Parser object
JSONParser jParser = new JSONParser();
ArrayList<HashMap<String, String>> productsList;
// url to get all products list
private static String url_all_products = "http://10.0.2.2/android_connect/get_all_products.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";
// products JSONArray
JSONArray products = null;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.all_products);
// Hashmap for ListView
productsList = new ArrayList<HashMap<String, String>>();
// Loading products in Background Thread
new LoadAllProducts().execute();
// Get 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 from selected ListItem
String pid = ((TextView) view.findViewById(R.id.pid)).getText()
.toString();
// Starting new intent
Intent in = new Intent(getApplicationContext(),
EditProductActivity.class);
// sending pid to next activity
in.putExtra(TAG_PID, pid);
// starting new activity and expecting some response back
startActivityForResult(in, 100);
}
});
}
// Response from 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 is received
// means user edited/deleted product
// reload this screen again
Intent intent = getIntent();
finish();
startActivity(intent);
}
}
/**
* Background Async Task to Load all product by 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(AllProductsActivity.this);
pDialog.setMessage("Loading products. Please wait...");
pDialog.setIndeterminate(false);
pDialog.setCancelable(false);
pDialog.show();
}
/**
* getting All products from url
* */
protected String doInBackground(String... args) {
// Building Parameters
List<NameValuePair> params = new ArrayList<NameValuePair>();
// getting JSON string from URL
JSONObject json = jParser.makeHttpRequest(url_all_products, "GET", params);
// Check your log cat for JSON reponse
Log.d("All Products: ", json.toString());
try {
// Checking for SUCCESS TAG
int success = json.getInt(TAG_SUCCESS);
if (success == 1) {
// products found
// Getting Array of Products
products = json.getJSONArray(TAG_PRODUCTS);
// looping through All Products
for (int i = 0; i < 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);
// creating new HashMap
HashMap<String, String> map = new HashMap<String, String>();
// adding each child node to HashMap key => value
map.put(TAG_PID, id);
map.put(TAG_NAME, name);
// adding HashList to ArrayList
productsList.add(map);
}
} else {
// no products found
// Launch Add New product Activity
Intent i = new Intent(getApplicationContext(),
NewProductActivity.class);
// Closing all previous activities
i.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
startActivity(i);
}
} catch (JSONException e) {
e.printStackTrace();
}
return null;
}
/**
* After completing background task Dismiss the progress dialog
* **/
protected void onPostExecute(String file_url) {
// dismiss the dialog after getting all products
pDialog.dismiss();
// updating UI from Background Thread
runOnUiThread(new Runnable() {
public void run() {
/**
* Updating parsed JSON data into ListView
* */
ListAdapter adapter = new SimpleAdapter(
AllProductsActivity.this, productsList,
R.layout.list_item, new String[] { TAG_PID,
TAG_NAME},
new int[] { R.id.pid, R.id.name });
// updating listview
setListAdapter(adapter);
}
});
}
}
}and this is my log cat when I run the app :
29823-29823/com.example.ashraf.androidhive E/AndroidRuntime: FATAL EXCEPTION: main
11-04 14:21:50.440 29823-29823/com.example.ashraf.androidhive E/AndroidRuntime: java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.ashraf.androidhive/com.example.ashraf.androidhive.AllProductsActivity}: java.lang.RuntimeException: Your content must have a ListView whose id attribute is 'android.R.id.list'
11-04 14:21:50.440 29823-29823/com.example.ashraf.androidhive E/AndroidRuntime: at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2059)
11-04 14:21:50.440 29823-29823/com.example.ashraf.androidhive E/AndroidRuntime: at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2084)
11-04 14:21:50.440 29823-29823/com.example.ashraf.androidhive E/AndroidRuntime: at android.app.ActivityThread.access$600(ActivityThread.java:130)
11-04 14:21:50.440 29823-29823/com.example.ashraf.androidhive E/AndroidRuntime: at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1195)
11-04 14:21:50.440 29823-29823/com.example.ashraf.androidhive E/AndroidRuntime: at android.os.Handler.dispatchMessage(Handler.java:99)
11-04 14:21:50.440 29823-29823/com.example.ashraf.androidhive E/AndroidRuntime: at android.os.Looper.loop(Looper.java:137)
11-04 14:21:50.440 29823-29823/com.example.ashraf.androidhive E/AndroidRuntime: at android.app.ActivityThread.main(ActivityThread.java:4745)
11-04 14:21:50.440 29823-29823/com.example.ashraf.androidhive E/AndroidRuntime: at java.lang.reflect.Method.invokeNative(Native Method)
11-04 14:21:50.440 29823-29823/com.example.ashraf.androidhive E/AndroidRuntime: at java.lang.reflect.Method.invoke(Method.java:511)
11-04 14:21:50.440 29823-29823/com.example.ashraf.androidhive E/AndroidRuntime: at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)
11-04 14:21:50.440 29823-29823/com.example.ashraf.androidhive E/AndroidRuntime: at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
11-04 14:21:50.440 29823-29823/com.example.ashraf.androidhive E/AndroidRuntime: at dalvik.system.NativeStart.main(Native Method)
11-04 14:21:50.440 29823-29823/com.example.ashraf.androidhive E/AndroidRuntime: Caused by: java.lang.RuntimeException: Your content must have a ListView whose id attribute is 'android.R.id.list'
11-04 14:21:50.440 29823-29823/com.example.ashraf.androidhive E/AndroidRuntime: at android.app.ListActivity.onContentChanged(ListActivity.java:243)
11-04 14:21:50.440 29823-29823/com.example.ashraf.androidhive E/AndroidRuntime: at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:259)
11-04 14:21:50.440 29823-29823/com.example.ashraf.androidhive E/AndroidRuntime: at android.app.Activity.setContentView(Activity.java:1867)
11-04 14:21:50.440 29823-29823/com.example.ashraf.androidhive E/AndroidRuntime: at com.example.ashraf.androidhive.AllProductsActivity.onCreate(AllProductsActivity.java:55)
11-04 14:21:50.440 29823-29823/com.example.ashraf.androidhive E/AndroidRuntime: at android.app.Activity.performCreate(Activity.java:5008)
11-04 14:21:50.440 29823-29823/com.example.ashraf.androidhive E/AndroidRuntime: at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1079)
11-04 14:21:50.440 29823-29823/com.example.ashraf.androidhive E/AndroidRuntime: at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2023)
11-04 14:21:50.440 29823-29823/com.example.ashraf.androidhive E/AndroidRuntime: at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2084)
11-04 14:21:50.440 29823-29823/com.example.ashraf.androidhive E/AndroidRuntime: at android.app.ActivityThread.access$600(ActivityThread.java:130)
11-04 14:21:50.440 29823-29823/com.example.ashraf.androidhive E/AndroidRuntime: at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1195)
11-04 14:21:50.440 29823-29823/com.example.ashraf.androidhive E/AndroidRuntime: at android.os.Handler.dispatchMessage(Handler.java:99)
11-04 14:21:50.440 29823-29823/com.example.ashraf.androidhive E/AndroidRuntime: at android.os.Looper.loop(Looper.java:137)
11-04 14:21:50.440 29823-29823/com.example.ashraf.androidhive E/AndroidRuntime: at android.app.ActivityThread.main(ActivityThread.java:4745)
11-04 14:21:50.440 29823-29823/com.example.ashraf.androidhive E/AndroidRuntime: at java.lang.reflect.Method.invokeNative(Native Method)
11-04 14:21:50.440 29823-29823/com.example.ashraf.androidhive E/AndroidRuntime: at java.lang.reflect.Method.invoke(Method.java:511)
11-04 14:21:50.440 29823-29823/com.example.ashraf.androidhive E/AndroidRuntime: at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)
11-04 14:21:50.440 29823-29823/com.example.ashraf.androidhive E/AndroidRuntime: at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
11-04 14:21:50.440 29823-29823/com.example.ashraf.androidhive E/AndroidRuntime: at dalvik.system.NativeStart.main(Native Method)
11-04 14:21:50.660 29823-29828/com.example.ashraf.androidhive D/dalvikvm: GC_CONCURRENT freed 221K, 4% free 10914K/11271K, paused 22ms+8ms, total 208ms
11-04 14:26:50.655 29823-29823/com.example.ashraf.androidhive I/Process: Sending signal. PID: 29823 SIG: 9
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