使用JSON处理需要从数据库接收一些信息的应用程序，我无法弄清楚什么是错误的。它突然停止了工作。
logcat的：
06-09 07:41:18.654: E/AndroidRuntime(1926): FATAL EXCEPTION: main
06-09 07:41:18.654: E/AndroidRuntime(1926): android.view.InflateException: Binary XML file line #2: Error inflating class android.widget.RelativeLayout
06-09 07:41:18.654: E/AndroidRuntime(1926): at android.view.LayoutInflater.createView(LayoutInflater.java:620)
06-09 07:41:18.654: E/AndroidRuntime(1926): at com.android.internal.policy.impl.PhoneLayoutInflater.onCreateView(PhoneLayoutInflater.java:56)
06-09 07:41:18.654: E/AndroidRuntime(1926): at android.view.LayoutInflater.onCreateView(LayoutInflater.java:669)
06-09 07:41:18.654: E/AndroidRuntime(1926): at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:694)
06-09 07:41:18.654: E/AndroidRuntime(1926): at android.view.LayoutInflater.inflate(LayoutInflater.java:469)
06-09 07:41:18.654: E/AndroidRuntime(1926): at android.view.LayoutInflater.inflate(LayoutInflater.java:397)
06-09 07:41:18.654: E/AndroidRuntime(1926): at android.widget.SimpleAdapter.createViewFromResource(SimpleAdapter.java:121)
06-09 07:41:18.654: E/AndroidRuntime(1926): at android.widget.SimpleAdapter.getView(SimpleAdapter.java:114)
06-09 07:41:18.654: E/AndroidRuntime(1926): at android.widget.AbsListView.obtainView(AbsListView.java:2177)
06-09 07:41:18.654: E/AndroidRuntime(1926): at android.widget.ListView.measureHeightOfChildren(ListView.java:1247)
06-09 07:41:18.654: E/AndroidRuntime(1926): at android.widget.ListView.onMeasure(ListView.java:1159)
06-09 07:41:18.654: E/AndroidRuntime(1926): at android.view.View.measure(View.java:15848)
06-09 07:41:18.654: E/AndroidRuntime(1926): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5012)
06-09 07:41:18.654: E/AndroidRuntime(1926): at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1404)
06-09 07:41:18.654: E/AndroidRuntime(1926): at android.widget.LinearLayout.measureVertical(LinearLayout.java:695)
06-09 07:41:18.654: E/AndroidRuntime(1926): at android.widget.LinearLayout.onMeasure(LinearLayout.java:588)
06-09 07:41:18.654: E/AndroidRuntime(1926): at android.view.View.measure(View.java:15848)
06-09 07:41:18.654: E/AndroidRuntime(1926): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5012)
06-09 07:41:18.654: E/AndroidRuntime(1926): at android.widget.FrameLayout.onMeasure(FrameLayout.java:310)
06-09 07:41:18.654: E/AndroidRuntime(1926): at android.view.View.measure(View.java:15848)
06-09 07:41:18.654: E/AndroidRuntime(1926): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5012)
06-09 07:41:18.654: E/AndroidRuntime(1926): at com.android.internal.widget.ActionBarOverlayLayout.onMeasure(ActionBarOverlayLayout.java:302)
06-09 07:41:18.654: E/AndroidRuntime(1926): at android.view.View.measure(View.java:15848)
06-09 07:41:18.654: E/AndroidRuntime(1926): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5012)
06-09 07:41:18.654: E/AndroidRuntime(1926): at android.widget.FrameLayout.onMeasure(FrameLayout.java:310)
06-09 07:41:18.654: E/AndroidRuntime(1926): at com.android.internal.policy.impl.PhoneWindow$DecorView.onMeasure(PhoneWindow.java:2189)
06-09 07:41:18.654: E/AndroidRuntime(1926): at android.view.View.measure(View.java:15848)
06-09 07:41:18.654: E/AndroidRuntime(1926): at android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:1905)
06-09 07:41:18.654: E/AndroidRuntime(1926): at android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:1104)
06-09 07:41:18.654: E/AndroidRuntime(1926): at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1284)
06-09 07:41:18.654: E/AndroidRuntime(1926): at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1004)
06-09 07:41:18.654: E/AndroidRuntime(1926): at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:5481)
06-09 07:41:18.654: E/AndroidRuntime(1926): at android.view.Choreographer$CallbackRecord.run(Choreographer.java:749)
06-09 07:41:18.654: E/AndroidRuntime(1926): at android.view.Choreographer.doCallbacks(Choreographer.java:562)
06-09 07:41:18.654: E/AndroidRuntime(1926): at android.view.Choreographer.doFrame(Choreographer.java:532)
06-09 07:41:18.654: E/AndroidRuntime(1926): at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:735)
06-09 07:41:18.654: E/AndroidRuntime(1926): at android.os.Handler.handleCallback(Handler.java:730)
06-09 07:41:18.654: E/AndroidRuntime(1926): at android.os.Handler.dispatchMessage(Handler.java:92)
06-09 07:41:18.654: E/AndroidRuntime(1926): at android.os.Looper.loop(Looper.java:137)
06-09 07:41:18.654: E/AndroidRuntime(1926): at android.app.ActivityThread.main(ActivityThread.java:5103)
06-09 07:41:18.654: E/AndroidRuntime(1926): at java.lang.reflect.Method.invokeNative(Native Method)
06-09 07:41:18.654: E/AndroidRuntime(1926): at java.lang.reflect.Method.invoke(Method.java:525)
06-09 07:41:18.654: E/AndroidRuntime(1926): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:737)
06-09 07:41:18.654: E/AndroidRuntime(1926): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
06-09 07:41:18.654: E/AndroidRuntime(1926): at dalvik.system.NativeStart.main(Native Method)
06-09 07:41:18.654: E/AndroidRuntime(1926): Caused by: java.lang.reflect.InvocationTargetException
06-09 07:41:18.654: E/AndroidRuntime(1926): at java.lang.reflect.Constructor.constructNative(Native Method)
06-09 07:41:18.654: E/AndroidRuntime(1926): at java.lang.reflect.Constructor.newInstance(Constructor.java:417)
06-09 07:41:18.654: E/AndroidRuntime(1926): at android.view.LayoutInflater.createView(LayoutInflater.java:594)
06-09 07:41:18.654: E/AndroidRuntime(1926): ... 44 more
06-09 07:41:18.654: E/AndroidRuntime(1926): Caused by: android.content.res.Resources$NotFoundException: Resource is not a Drawable (color or path): TypedValue{t=0x1/d=0x7f080000 a=-1 r=0x7f080000}
06-09 07:41:18.654: E/AndroidRuntime(1926): at android.content.res.Resources.loadDrawable(Resources.java:2063)
06-09 07:41:18.654: E/AndroidRuntime(1926): at android.content.res.TypedArray.getDrawable(TypedArray.java:601)
06-09 07:41:18.654: E/AndroidRuntime(1926): at android.view.View.<init>(View.java:3364)
06-09 07:41:18.654: E/AndroidRuntime(1926): at android.view.View.<init>(View.java:3293)
06-09 07:41:18.654: E/AndroidRuntime(1926): at android.view.ViewGroup.<init>(ViewGroup.java:453)
06-09 07:41:18.654: E/AndroidRuntime(1926): at android.widget.RelativeLayout.<init>(RelativeLayout.java:242)
06-09 07:41:18.654: E/AndroidRuntime(1926): ... 47 more
无法找到要查找的行，为什么它应该停止工作？我附上了ListActivity（包含代码）：
public class ListActivity extends Activity {
ListView list;
TextView icon;
TextView name;
TextView developer;
TextView size;
Button Btngetdata;
ArrayList<HashMap<String, String>> mList = new ArrayList<HashMap<String, String>>();
private static String url = "http://appwhittle.com/getdata.php";
private static final String TAG_ITEM = "app_item";
private static final String TAG_ICON = "app_icon";
private static final String TAG_NAME = "app_name";
private static final String TAG_DEVELOPER = "app_developer";
private static final String TAG_SIZE = "app_size";
JSONArray mJsonArray = null;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_list);
mList = new ArrayList<HashMap<String, String>>();
new JSONParse().execute();
}
private class JSONParse extends AsyncTask<String, String, JSONObject> {
private ProgressDialog pDialog;
@Override
protected void onPreExecute() {
super.onPreExecute();
icon = (TextView)findViewById(R.id.icon);
name = (TextView)findViewById(R.id.name);
size = (TextView)findViewById(R.id.size);
developer = (TextView)findViewById(R.id.developer);
pDialog = new ProgressDialog(ListActivity.this);
pDialog.setMessage("Getting Data ...");
pDialog.setIndeterminate(false);
pDialog.setCancelable(true);
pDialog.show();
}
@Override
protected JSONObject doInBackground(String... args) {
JSONParser jParser = new JSONParser();
// Getting JSON from URL
JSONObject json = jParser.getJSONFromUrl(url);
return json;
}
@Override
protected void onPostExecute(JSONObject json) {
pDialog.dismiss();
try {
mJsonArray = json.getJSONArray(TAG_ITEM);
for(int i = 0; i < mJsonArray.length(); i++){
JSONObject c = mJsonArray.getJSONObject(i);
String name = c.getString(TAG_NAME);
String size = c.getString(TAG_SIZE);
String developer = c.getString(TAG_DEVELOPER);
String icon = c.getString(TAG_ICON);
HashMap<String, String> map = new HashMap<String, String>();
map.put(TAG_ICON, icon);
map.put(TAG_NAME, name);
map.put(TAG_DEVELOPER, "Developer: " + developer);
map.put(TAG_SIZE, size + " MB");
mList.add(map);
list=(ListView)findViewById(R.id.list);
ListAdapter adapter = new SimpleAdapter(ListActivity.this, mList,
R.layout.list_v,
new String[] {TAG_NAME, TAG_DEVELOPER, TAG_SIZE }, new int[] {
R.id.name, R.id.developer, R.id.size});
list.setAdapter(adapter);
list.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
Toast.makeText(ListActivity.this, "You Clicked at "+ mList.get(+position).get(TAG_NAME), Toast.LENGTH_SHORT).show();
}
});
}
} catch (JSONException e) {
e.printStackTrace();
}
}
}
}
JSONParser：
public class JSONParser {
static InputStream is = null;
static JSONObject jObj = null;
static String json = "";
// constructor
public JSONParser() {}
public JSONObject getJSONFromUrl(String url) {
// Making HTTP request
try {
// defaultHttpClient
DefaultHttpClient httpClient = new DefaultHttpClient();
HttpPost httpPost = new HttpPost(url);
HttpResponse httpResponse = httpClient.execute(httpPost);
HttpEntity httpEntity = httpResponse.getEntity();
is = httpEntity.getContent();
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
} catch (ClientProtocolException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
try {
BufferedReader reader = new BufferedReader(new InputStreamReader(
is, "iso-8859-1"), 8);
StringBuilder sb = new StringBuilder();
String line = null;
while ((line = reader.readLine()) != null) {
sb.append(line + "\n");
}
is.close();
json = sb.toString();
} catch (Exception e) {
Log.e("Buffer Error", "Error converting result " + e.toString());
}
// try parse the string to a JSON object
try {
jObj = new JSONObject(json);
} catch (JSONException e) {
Log.e("JSON Parser", "Error parsing data " + e.toString());
}
// return JSON String
return jObj;
}
}
activity_list.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<ListView
android:id="@+id/list"
android:layout_width="match_parent"
android:layout_height="wrap_content" >
</ListView>
</LinearLayout>
非常感谢任何帮助！感谢
答案 0 :(得分：0)
修正了它。看起来像我在我的布局中添加了android:background="@style/AppBaseTheme"，它现在正在运行。感谢