如何修复此 ArrayAdapter 要求资源 ID 为 TextView
How to fix this ArrayAdapter requires the resource ID to be a TextView
我是 android 的新手，我正在尝试使用 json 开发具有 gridview 和 listview 的应用程序。通过 json 我在 gridview 中显示了一组图像，并根据 gridview 的位置，我在下一页（列表视图）中显示结果。这是我的 Sub_Category.java（第二页 java 文件）
package com.javatechig.gridviewexample;
public class Sub_Categories extends ActionBarActivity {
private ArrayList<GridItem> SubCatgyData;
private static final String TAG = Sub_Categories.class.getSimpleName();
public String TAG1 = "Value for ID";
public String TAG2 = "Value for subCategory";
public String TAG4 = "Value for subCategory in main method";
public String TAG3 = "DONE";
public String categoryID;
private ProgressBar mProgressBar;
private ListView listView;
public String subURL = "http://www.prateektechnosoft.com/justcall/cities/gridsubcategories/chennai/";
public String URLwithID;
private ListAdapter mListAdapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_sub__categories);
categoryID = getIntent().getStringExtra("ID");
Log.e(TAG1, categoryID);
SubCatgyData = new ArrayList<>();
URLwithID = subURL + categoryID;
mProgressBar = (ProgressBar) findViewById(R.id.progressBar2);
Log.e(TAG3, "Before Execute");
new AsyncHttpTask().execute(URLwithID);
Log.d(TAG4, String.valueOf(SubCatgyData.size()));
Log.e(TAG3, "After Execute");
mProgressBar.setVisibility(View.VISIBLE);
listView=(ListView) findViewById(R.id.listView2);
ArrayAdapter adapter = new ArrayAdapter(Sub_Categories.this,android.R.layout.simple_list_item_2,SubCatgyData);
listView.setAdapter(adapter);
}
public class AsyncHttpTask extends AsyncTask<String, Void, Integer> {
@Override
protected Integer doInBackground(String... params) {
Integer result = 0;
try {
// Create Apache HttpClient
HttpClient httpclient = new DefaultHttpClient();
HttpResponse httpResponse = httpclient.execute(new HttpGet(params[0]));
int statusCode = httpResponse.getStatusLine().getStatusCode();
// 200 represents HTTP OK
if (statusCode == 200) {
String response = streamToString(httpResponse.getEntity().getContent());
parseResult(response);
result = 1; // Successful
} else {
result = 0; //"Failed
}
} catch (Exception e) {
Log.d(TAG, e.getLocalizedMessage());
}
runOnUiThread(new Runnable() {
public void run() {
listView = (ListView) findViewById(R.id.listView2);
ArrayAdapter adapter = new ArrayAdapter(Sub_Categories.this, android.R.layout.list_content, SubCatgyData);
listView.setAdapter(adapter);
}
});
Log.e(TAG3, "Done in do background methid");
return result;
}
@Override
protected void onPostExecute(Integer result) {
// Download complete. Lets update UI
if (result == 0) {
Toast.makeText(Sub_Categories.this, "Failed to fetch data!", Toast.LENGTH_SHORT).show();
}
//Hide progressbar
mProgressBar.setVisibility(View.GONE);
Log.e(TAG3, "Done in onPostExecute methid");
}
}
String streamToString(InputStream stream) throws IOException {
BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(stream));
String line;
String result = "";
while ((line = bufferedReader.readLine()) != null) {
result += line;
}
// Close stream
if (null != stream) {
stream.close();
}
Log.e(TAG3, "Done in streamTOString methid");
return result;
}
private void parseResult(String result) {
try {
//JSONObject response = new JSONObject(result);
JSONArray posts = new JSONArray(result);
GridItem item;
for (int i = 0; i < posts.length(); i++) {
JSONObject post = posts.optJSONObject(i);
String catid = post.optString("suB_CATEGORYNAME");
item = new GridItem();
item.setID(catid);
SubCatgyData.add(item);
}
Log.d(TAG2, String.valueOf(SubCatgyData.size()));
} catch (JSONException e) {
e.printStackTrace();
}
Log.e(TAG3, "Done in parseResult methid");
return;
}
}
这是我的布局文件。
<?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="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context="com.javatechig.gridviewexample.Sub_Categories">
<ListView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/listView2"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true" />
<ProgressBar
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/progressBar2"
android:layout_centerInParent="true"
android:visibility="gone"/>
</RelativeLayout>
这是我的日志。我无法修复此错误。请帮我。
12-15 11:44:33.528 25575-25575/com.javatechig.gridviewexample E/ArrayAdapter: You must supply a resource ID for a TextView
12-15 11:44:33.528 25575-25575/com.javatechig.gridviewexample D/AndroidRuntime: Shutting down VM
12-15 11:44:33.529 25575-25575/com.javatechig.gridviewexample E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.javatechig.gridviewexample, PID: 25575
java.lang.IllegalStateException: ArrayAdapter requires the resource ID to be a TextView
at android.widget.ArrayAdapter.createViewFromResource(ArrayAdapter.java:393)
at android.widget.ArrayAdapter.getView(ArrayAdapter.java:369)
at android.widget.AbsListView.obtainView(AbsListView.java:2346)
at android.widget.ListView.measureHeightOfChildren(ListView.java:1280)
at android.widget.ListView.onMeasure(ListView.java:1188)
at android.view.View.measure(View.java:18788)
at android.widget.RelativeLayout.measureChildHorizontal(RelativeLayout.java:715)
at android.widget.RelativeLayout.onMeasure(RelativeLayout.java:461)
at android.view.View.measure(View.java:18788)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5951)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:194)
at android.view.View.measure(View.java:18788)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5951)
at android.support.v7.internal.widget.ActionBarOverlayLayout.onMeasure(ActionBarOverlayLayout.java:453)
at android.view.View.measure(View.java:18788)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5951)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:194)
at android.view.View.measure(View.java:18788)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5951)
at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1465)
at android.widget.LinearLayout.measureVertical(LinearLayout.java:748)
at android.widget.LinearLayout.onMeasure(LinearLayout.java:630)
at android.view.View.measure(View.java:18788)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5951)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:194)
at com.android.internal.policy.PhoneWindow$DecorView.onMeasure(PhoneWindow.java:2643)
at android.view.View.measure(View.java:18788)
at android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:2100)
at android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:1216)
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1452)
at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1107)
at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:6013)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:858)
at android.view.Choreographer.doCallbacks(Choreographer.java:670)
at android.view.Choreographer.doFrame(Choreographer.java:606)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:844)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5417)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
Caused by: java.lang.ClassCastException: android.widget.FrameLayout cannot be cast to android.widget.TextView
at android.widget.ArrayAdapter.createViewFromResource(ArrayAdapter.java:386)
at android.widget.ArrayAdapter.getView(ArrayAdapter.java:369)
at android.widget.AbsListView.obtainView(AbsListView.java:2346)
at android.widget.ListView.measureHeightOfChildren(ListView.java:1280)
at android.widget.ListView.onMeasure(ListView.java:1188)
at android.view.View.measure(View.java:18788)
at android.widget.RelativeLayout.measureChildHorizontal(RelativeLayout.java:715)
at android.widget.RelativeLayout.onMeasure(RelativeLayout.java:461)
at android.view.View.measure(View.java:18788)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5951)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:194)
at android.view.View.measure(View.java:18788)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5951)
at android.support.v7.internal.widget.ActionBarOverlayLayout.onMeasure(ActionBarOverlayLayout.java:453)
at android.view.View.measure(View.java:18788)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5951)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:194)
at android.view.View.measure(View.java:18788)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5951)
at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1465)
at android.widget.LinearLayout.measureVertical(LinearLayout.java:748)
at android.widget.LinearLayout.onMeasure(LinearLayout.java:630)
at android.view.View.measure(View.java:18788)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5951)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:194)
at com.android.internal.policy.PhoneWindow$DecorView.onMeasure(PhoneWindow.java:2643)
at android.view.View.measure(View.java:18788)
at android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:2100)
at android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:1216)
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1452)
at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1107)
at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:6013)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:858)
at android.view.Choreographer.doCallbacks(Choreographer.java:670)
at android.view.Choreographer.doFrame(Choreographer.java:606)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:844)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5417)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
提前致谢
您需要覆盖 [ArrayAdapter.getView(int, View, ViewGroup)](http://developer.android.com/reference/android/widget/ArrayAdapter.html#getView(int, android.view.View, android.view.ViewGroup)). See http://developer.android.com/reference/android/widget/ArrayAdapter.html
To use something other than TextViews for the array display, for instance, ImageViews, or to have some of data besides toString() results fill the views, override getView(int, View, ViewGroup) to return the type of view you want.
为适配器创建自定义布局。您正在使用 android 提供的一个。请参阅您用于布局的 android 前缀。
由于您使用的是默认的 ListView 和 ArrayAdapter，并且您只有一个数据列表，即 SubCatgyData，您应该使用 android.R.layout .simple_list_item_1 而不是 android.R.layout.simple_list_item_2.
两者的区别在于android.R.layout.simple_list_item_1里面只有一个TextView，而android.R.layout.simple_list_item_2里面有两个TextView。
ArrayAdapter adapter = new ArrayAdapter(Sub_Categories.this,android.R.layout.simple_list_item_1,SubCatgyData);
我是 android 的新手，我正在尝试使用 json 开发具有 gridview 和 listview 的应用程序。通过 json 我在 gridview 中显示了一组图像，并根据 gridview 的位置，我在下一页（列表视图）中显示结果。这是我的 Sub_Category.java（第二页 java 文件）
package com.javatechig.gridviewexample;
public class Sub_Categories extends ActionBarActivity {
private ArrayList<GridItem> SubCatgyData;
private static final String TAG = Sub_Categories.class.getSimpleName();
public String TAG1 = "Value for ID";
public String TAG2 = "Value for subCategory";
public String TAG4 = "Value for subCategory in main method";
public String TAG3 = "DONE";
public String categoryID;
private ProgressBar mProgressBar;
private ListView listView;
public String subURL = "http://www.prateektechnosoft.com/justcall/cities/gridsubcategories/chennai/";
public String URLwithID;
private ListAdapter mListAdapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_sub__categories);
categoryID = getIntent().getStringExtra("ID");
Log.e(TAG1, categoryID);
SubCatgyData = new ArrayList<>();
URLwithID = subURL + categoryID;
mProgressBar = (ProgressBar) findViewById(R.id.progressBar2);
Log.e(TAG3, "Before Execute");
new AsyncHttpTask().execute(URLwithID);
Log.d(TAG4, String.valueOf(SubCatgyData.size()));
Log.e(TAG3, "After Execute");
mProgressBar.setVisibility(View.VISIBLE);
listView=(ListView) findViewById(R.id.listView2);
ArrayAdapter adapter = new ArrayAdapter(Sub_Categories.this,android.R.layout.simple_list_item_2,SubCatgyData);
listView.setAdapter(adapter);
}
public class AsyncHttpTask extends AsyncTask<String, Void, Integer> {
@Override
protected Integer doInBackground(String... params) {
Integer result = 0;
try {
// Create Apache HttpClient
HttpClient httpclient = new DefaultHttpClient();
HttpResponse httpResponse = httpclient.execute(new HttpGet(params[0]));
int statusCode = httpResponse.getStatusLine().getStatusCode();
// 200 represents HTTP OK
if (statusCode == 200) {
String response = streamToString(httpResponse.getEntity().getContent());
parseResult(response);
result = 1; // Successful
} else {
result = 0; //"Failed
}
} catch (Exception e) {
Log.d(TAG, e.getLocalizedMessage());
}
runOnUiThread(new Runnable() {
public void run() {
listView = (ListView) findViewById(R.id.listView2);
ArrayAdapter adapter = new ArrayAdapter(Sub_Categories.this, android.R.layout.list_content, SubCatgyData);
listView.setAdapter(adapter);
}
});
Log.e(TAG3, "Done in do background methid");
return result;
}
@Override
protected void onPostExecute(Integer result) {
// Download complete. Lets update UI
if (result == 0) {
Toast.makeText(Sub_Categories.this, "Failed to fetch data!", Toast.LENGTH_SHORT).show();
}
//Hide progressbar
mProgressBar.setVisibility(View.GONE);
Log.e(TAG3, "Done in onPostExecute methid");
}
}
String streamToString(InputStream stream) throws IOException {
BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(stream));
String line;
String result = "";
while ((line = bufferedReader.readLine()) != null) {
result += line;
}
// Close stream
if (null != stream) {
stream.close();
}
Log.e(TAG3, "Done in streamTOString methid");
return result;
}
private void parseResult(String result) {
try {
//JSONObject response = new JSONObject(result);
JSONArray posts = new JSONArray(result);
GridItem item;
for (int i = 0; i < posts.length(); i++) {
JSONObject post = posts.optJSONObject(i);
String catid = post.optString("suB_CATEGORYNAME");
item = new GridItem();
item.setID(catid);
SubCatgyData.add(item);
}
Log.d(TAG2, String.valueOf(SubCatgyData.size()));
} catch (JSONException e) {
e.printStackTrace();
}
Log.e(TAG3, "Done in parseResult methid");
return;
}
}
这是我的布局文件。
<?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="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context="com.javatechig.gridviewexample.Sub_Categories">
<ListView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/listView2"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true" />
<ProgressBar
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/progressBar2"
android:layout_centerInParent="true"
android:visibility="gone"/>
</RelativeLayout>
这是我的日志。我无法修复此错误。请帮我。
12-15 11:44:33.528 25575-25575/com.javatechig.gridviewexample E/ArrayAdapter: You must supply a resource ID for a TextView
12-15 11:44:33.528 25575-25575/com.javatechig.gridviewexample D/AndroidRuntime: Shutting down VM
12-15 11:44:33.529 25575-25575/com.javatechig.gridviewexample E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.javatechig.gridviewexample, PID: 25575
java.lang.IllegalStateException: ArrayAdapter requires the resource ID to be a TextView
at android.widget.ArrayAdapter.createViewFromResource(ArrayAdapter.java:393)
at android.widget.ArrayAdapter.getView(ArrayAdapter.java:369)
at android.widget.AbsListView.obtainView(AbsListView.java:2346)
at android.widget.ListView.measureHeightOfChildren(ListView.java:1280)
at android.widget.ListView.onMeasure(ListView.java:1188)
at android.view.View.measure(View.java:18788)
at android.widget.RelativeLayout.measureChildHorizontal(RelativeLayout.java:715)
at android.widget.RelativeLayout.onMeasure(RelativeLayout.java:461)
at android.view.View.measure(View.java:18788)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5951)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:194)
at android.view.View.measure(View.java:18788)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5951)
at android.support.v7.internal.widget.ActionBarOverlayLayout.onMeasure(ActionBarOverlayLayout.java:453)
at android.view.View.measure(View.java:18788)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5951)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:194)
at android.view.View.measure(View.java:18788)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5951)
at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1465)
at android.widget.LinearLayout.measureVertical(LinearLayout.java:748)
at android.widget.LinearLayout.onMeasure(LinearLayout.java:630)
at android.view.View.measure(View.java:18788)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5951)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:194)
at com.android.internal.policy.PhoneWindow$DecorView.onMeasure(PhoneWindow.java:2643)
at android.view.View.measure(View.java:18788)
at android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:2100)
at android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:1216)
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1452)
at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1107)
at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:6013)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:858)
at android.view.Choreographer.doCallbacks(Choreographer.java:670)
at android.view.Choreographer.doFrame(Choreographer.java:606)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:844)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5417)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
Caused by: java.lang.ClassCastException: android.widget.FrameLayout cannot be cast to android.widget.TextView
at android.widget.ArrayAdapter.createViewFromResource(ArrayAdapter.java:386)
at android.widget.ArrayAdapter.getView(ArrayAdapter.java:369)
at android.widget.AbsListView.obtainView(AbsListView.java:2346)
at android.widget.ListView.measureHeightOfChildren(ListView.java:1280)
at android.widget.ListView.onMeasure(ListView.java:1188)
at android.view.View.measure(View.java:18788)
at android.widget.RelativeLayout.measureChildHorizontal(RelativeLayout.java:715)
at android.widget.RelativeLayout.onMeasure(RelativeLayout.java:461)
at android.view.View.measure(View.java:18788)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5951)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:194)
at android.view.View.measure(View.java:18788)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5951)
at android.support.v7.internal.widget.ActionBarOverlayLayout.onMeasure(ActionBarOverlayLayout.java:453)
at android.view.View.measure(View.java:18788)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5951)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:194)
at android.view.View.measure(View.java:18788)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5951)
at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1465)
at android.widget.LinearLayout.measureVertical(LinearLayout.java:748)
at android.widget.LinearLayout.onMeasure(LinearLayout.java:630)
at android.view.View.measure(View.java:18788)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5951)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:194)
at com.android.internal.policy.PhoneWindow$DecorView.onMeasure(PhoneWindow.java:2643)
at android.view.View.measure(View.java:18788)
at android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:2100)
at android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:1216)
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1452)
at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1107)
at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:6013)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:858)
at android.view.Choreographer.doCallbacks(Choreographer.java:670)
at android.view.Choreographer.doFrame(Choreographer.java:606)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:844)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5417)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
提前致谢
您需要覆盖 [ArrayAdapter.getView(int, View, ViewGroup)](http://developer.android.com/reference/android/widget/ArrayAdapter.html#getView(int, android.view.View, android.view.ViewGroup)). See http://developer.android.com/reference/android/widget/ArrayAdapter.html
To use something other than TextViews for the array display, for instance, ImageViews, or to have some of data besides toString() results fill the views, override getView(int, View, ViewGroup) to return the type of view you want.
为适配器创建自定义布局。您正在使用 android 提供的一个。请参阅您用于布局的 android 前缀。
由于您使用的是默认的 ListView 和 ArrayAdapter，并且您只有一个数据列表，即 SubCatgyData，您应该使用 android.R.layout .simple_list_item_1 而不是 android.R.layout.simple_list_item_2.
两者的区别在于android.R.layout.simple_list_item_1里面只有一个TextView，而android.R.layout.simple_list_item_2里面有两个TextView。
ArrayAdapter adapter = new ArrayAdapter(Sub_Categories.this,android.R.layout.simple_list_item_1,SubCatgyData);