Problem mit JSON von MySQL Datenbank, und Threads

1th.start();
2 fillList();
3
4
5 }
6 public void run() {
7 getData();
8 }
9
10 public void getData() {
11// Hole JSON Object und schreibe in ein List<Meal>
12 {

1package com.example.as_diet2;
2
3import java.io.BufferedReader;
4import java.io.InputStream;
5import java.io.InputStreamReader;
6import java.util.ArrayList;
7import java.util.Calendar;
8import java.util.GregorianCalendar;
9
10import org.apache.http.HttpEntity;
11import org.apache.http.HttpResponse;
12import org.apache.http.NameValuePair;
13import org.apache.http.client.HttpClient;
14import org.apache.http.client.entity.UrlEncodedFormEntity;
15import org.apache.http.client.methods.HttpPost;
16import org.apache.http.client.params.ClientPNames;
17import org.apache.http.client.params.CookiePolicy;
18import org.apache.http.impl.client.DefaultHttpClient;
19import org.json.JSONArray;
20import org.json.JSONException;
21import org.json.JSONObject;
22
23import android.app.Activity;
24import android.app.ListActivity;
25import android.content.Intent;
26import android.os.Bundle;
27import android.util.Log;
28import android.view.Menu;
29import android.view.View;
30import android.widget.AdapterView;
31import android.widget.AdapterView.OnItemClickListener;
32import android.widget.ArrayAdapter;
33import android.widget.ListView;
34
35public class MealDatabaseActivity extends ListActivity implements Runnable{
36
37 InputStream is;
38 ArrayList<Meal> meals = new ArrayList<Meal>();
39 JSONObject json_data;
40 GregorianCalendar cal = new GregorianCalendar();
41 Thread th=new Thread(this);
42
43 @Override
44 public void onCreate(Bundle savedInstanceState)
45 {
46 super.onCreate(savedInstanceState);
47 cal.add( Calendar.DATE, 0 );
48
49 th.start();
50 fillList();
51
52
53 }
54 public void run() {
55 getData();
56 }
57
58 public void getData()
59 {
60 Log.d("error","einmal aufgerufen");
61 String result = "";
62 ArrayList<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>();
63
64 try{
65 HttpClient httpclient = new DefaultHttpClient();
66 //Falls der Server Cookies setzen will.
67 httpclient.getParams().setParameter(ClientPNames.COOKIE_POLICY,
68 CookiePolicy.NETSCAPE);
69 httpclient.getParams().setParameter("http.protocol.single-cookie-header", true);
70 HttpPost httppost = new HttpPost("XXX");// Der Link
71 httppost.getParams().setParameter(
72 ClientPNames.COOKIE_POLICY, CookiePolicy.NETSCAPE);
73
74 httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
75 HttpResponse response = httpclient.execute(httppost);
76 HttpEntity entity = response.getEntity();
77 is = entity.getContent();
78 }catch(Exception e){
79 Log.e("log_tag", "Fehler bei der http Verbindung "+e.toString());
80 }
81
82 try{
83 BufferedReader reader = new BufferedReader(new InputStreamReader(is,"iso-8859-1"),8);
84 StringBuilder sb = new StringBuilder();
85 String line = null;
86 while ((line = reader.readLine()) != null) {
87 sb.append(line + "n");
88 }
89 is.close();
90 result=sb.toString();
91 }catch(Exception e){
92 Log.e("log_tag", "Error converting result "+e.toString());
93 }
94
95 try{
96 JSONArray jArray = new JSONArray(result);
97 for(int i=0;i<jArray.length();i++){
98 json_data = jArray.getJSONObject(i);
99 Meal meal =new Meal();
100 meal.setId(json_data.getInt("id"));
101 meal.setName(json_data.getString("name"));
102 meal.setKh(json_data.getDouble("kohlenhydrate"));
103 meal.setProtein(json_data.getDouble("protein"));
104 meal.setFett(json_data.getDouble("fett"));
105 meal.setKcal(json_data.getDouble("kcal"));
106 meals.add(meal);
107
108 }
109
110
111 }
112 catch(JSONException e){
113 Log.e("log_tag", "Error parsing data "+e.toString());
114 }
115 }
116
117 public void fillList() {
118 Log.d("error","FILLIST");
119
120 this.setListAdapter(new ArrayAdapter<Meal>(this, android.R.layout.simple_list_item_1, meals));
121 }
122
123 @Override
124 public void onListItemClick(ListView l, View v, int position, long id) {
125
126 Log.d("error","MEAL NAME :"+meals.get(position).name);
127 Intent intent = new Intent(MealDatabaseActivity.this, AddMealActivity.class);
128 Meal meal= meals.get(position);
129 meal.setDay(cal.getTime().getDate());
130 meal.setMonth(cal.getTime().getMonth()+1);
131 meal.setYear(Calendar.getInstance().get(Calendar.YEAR));
132 meal.setHour(cal.getTime().getHours());
133 meal.setMinute(cal.getTime().getMinutes());
134 intent.putExtra("duwag", meal);
135 startActivity(intent);
136 }
137
138 @Override
139 public boolean onCreateOptionsMenu(Menu menu) {
140 super.onCreateOptionsMenu(menu);
141 getMenuInflater().inflate(R.menu.activity_main, menu);
142 menu.findItem(R.id.help_menu_item).setIntent(new Intent(this, HelpActivity.class));
143 menu.findItem(R.id.settings_menu_item).setIntent(new Intent(this, SettingsActivity.class));
144 return true;
145 }
146
147
148
149
150}

101-13 15:02:19.365: E/AndroidRuntime(21697): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.as_diet2/com.example.as_diet2.MainActivity}: java.lang.ClassCastException: android.widget.TextView cannot be cast to android.widget.Button

1<LinearLayout xmlns:android="XXX"
2 xmlns:tools="XXX"
3 android:id="@+id/LinearLayout1"
4 android:layout_width="match_parent"
5 android:layout_height="match_parent"
6 android:orientation="vertical"
7 tools:context=".MainActivity" >
8
9 <RelativeLayout
10 android:layout_width="match_parent"
11 android:layout_height="wrap_content" >
12
13 <ImageView
14 android:id="@+id/pfeil1"
15 android:layout_width="wrap_content"
16 android:layout_height="wrap_content"
17 android:src="@drawable/arrow_left" />
18
19 <ImageView
20 android:id="@+id/pfeil2"
21 android:layout_width="wrap_content"
22 android:layout_height="wrap_content"
23 android:layout_alignParentRight="true"
24 android:layout_alignParentTop="true"
25 android:src="@drawable/arrow_right" />
26
27 <TextView
28 android:id="@+id/textView1"
29 android:layout_width="wrap_content"
30 android:layout_height="wrap_content"
31 android:layout_centerHorizontal="true"
32 android:layout_centerVertical="true"
33 android:text="@string/main"
34 android:textSize="26sp" />
35
36 </RelativeLayout>
37
38 <RelativeLayout
39 android:layout_width="match_parent"
40 android:layout_height="wrap_content" >
41
42 <TextView
43 android:id="@+id/kalorien"
44 android:layout_width="wrap_content"
45 android:layout_height="wrap_content"
46 android:layout_alignParentRight="true"
47 android:layout_alignParentTop="true"
48 android:layout_marginRight="10dp"
49 android:text="3000kcal"
50 android:textColor="@color/kalorien_gruen"
51 android:textSize="35sp" />
52
53 <TextView
54 android:id="@+id/main_prozent"
55 android:layout_width="wrap_content"
56 android:layout_height="wrap_content"
57 android:layout_alignParentLeft="true"
58 android:layout_alignParentTop="true"
59 android:layout_marginLeft="10dp"
60 android:text="0%"
61 android:textSize="35sp" />
62
63 </RelativeLayout>
64
65 <RelativeLayout
66 android:layout_width="match_parent"
67 android:layout_height="wrap_content" >
68
69 </RelativeLayout>
70
71 <RelativeLayout
72 android:layout_width="match_parent"
73 android:layout_height="wrap_content" >
74
75 </RelativeLayout>
76
77 <TableLayout
78 android:layout_width="match_parent"
79 android:layout_height="wrap_content"
80 android:background="@layout/shape_white" >
81
82 <TableRow
83 android:id="@+id/tableRow1"
84 android:layout_width="wrap_content"
85 android:layout_height="wrap_content"
86 android:layout_marginBottom="2dp"
87 android:background="@layout/shape"
88 android:showDividers="beginning" >
89
90 <Button
91 android:id="@+id/main_meal_button"
92 android:layout_width="wrap_content"
93 android:layout_height="wrap_content"
94 android:background="@android:color/white"
95 android:drawableLeft="@drawable/forkknife"
96 android:text="etwas Essen" />
97
98 <TextView
99 android:id="@+id/restkalorientext"
100 android:layout_width="wrap_content"
101 android:layout_height="wrap_content"
102 android:text="bereits:"
103 android:textStyle="bold" />
104
105 </TableRow>
106
107 <TableRow
108 android:id="@+id/tableRow2"
109 android:layout_width="wrap_content"
110 android:layout_height="wrap_content"
111 android:layout_marginBottom="2dp"
112 android:background="@layout/shape" >
113
114 <Button
115 android:id="@+id/main_settings_button"
116 android:layout_width="wrap_content"
117 android:layout_height="wrap_content"
118 android:background="@android:color/white"
119 android:drawableLeft="@drawable/settings"
120 android:text="Einstellungen" />
121
122 </TableRow>
123
124 <TableRow
125 android:id="@+id/tableRow3"
126 android:layout_width="wrap_content"
127 android:layout_height="wrap_content"
128 android:layout_marginBottom="2dp"
129 android:background="@layout/shape" >
130
131 <Button
132 android:id="@+id/main_help_button"
133 android:layout_width="wrap_content"
134 android:layout_height="wrap_content"
135 android:background="@android:color/white"
136 android:drawableLeft="@drawable/settings"
137 android:text="Hilfe" />
138
139 </TableRow>
140
141 <TableRow
142 android:id="@+id/tableRow4"
143 android:layout_width="wrap_content"
144 android:layout_height="wrap_content"
145 android:background="@layout/shape" >
146
147 <Button
148 android:id="@+id/main_database_button"
149 android:layout_width="wrap_content"
150 android:layout_height="wrap_content"
151 android:background="@android:color/white"
152 android:drawableLeft="@drawable/forkknife"
153 android:text="Online Datenbank" />
154
155 </TableRow>
156 </TableLayout>
157
158</LinearLayout>

1TextView kalorientext=(TextView) findViewById(R.id.kalorien);
2.
3.
4 kalorientext.setText(""+df0.format(restkalorien)+"kcal");

1public void onTextChanged(CharSequence s, int start,
2 int before, int count)
3 {
4meals.clear();
5if (suchfeld.getText().toString().length()<=0||
6suchfeld.getText().toString().equals(" ")||
7suchfeld.getText().toString().equals(""))
8 {
9 meals=allmeals;
10 }
11.
12.
13.