我正在开发和Android应用程序...其中..i将我的应用程序与MySql表连接，其中表具有1-10的单独结果...所以当值用户得到结果在1-10之间时相应的结果必须从表格中获取并显示在文本视图中。
但我得到的消息就像＃不幸的是应用程序停止了＃39;我在这里发布代码和logcat请检查并回复...
mainactivity.java
public class FirstResult extends Activity
{
String pid;
TextView txtName;
// Progress Dialog
private ProgressDialog pDialog;
// JSON parser class
JSONParser jsonParser = new JSONParser();
// single product url
private static final String url_product_detials = "http://iascpl.com/app/get_product_details.php";
// JSON Node names
private static final String TAG_SUCCESS = "success";
private static final String TAG_PRODUCT = "product";
//private static final String TAG_PID = "pid";
//private static final String TAG_NUMBER = "number";
//private static final String TAG_PRICE = "price";
private static final String TAG_DESCRIPTION = "description";
@Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.firstresult_xm);
TextView txt1 = (TextView) findViewById (R.id.textView2);
txt1.setText(getIntent().getStringExtra("name10"));
pid = txt1.getText().toString();
new GetProductDetails().execute();
}
/**
* Background Async Task to Get complete product details
* */
class GetProductDetails extends AsyncTask<String, String, String> {
/**
* Before starting background thread Show Progress Dialog
* */
@Override
protected void onPreExecute() {
super.onPreExecute();
pDialog = new ProgressDialog(FirstResult.this);
pDialog.setMessage("Loading product details. Please wait...");
pDialog.setIndeterminate(false);
pDialog.setCancelable(true);
pDialog.show();
}
/**
* Getting product details in background thread
* */
protected String doInBackground(String... args)
{
{
TextView txt1 = (TextView) findViewById (R.id.textView2);
txt1.setText(getIntent().getStringExtra("name10"));
pid = txt1.getText().toString();
// Building Parameters
List<NameValuePair> params = new ArrayList<NameValuePair>();
params.add(new BasicNameValuePair("pid", pid));
// getting product details by making HTTP request
// Note that product details url will use GET request
JSONObject json = jsonParser.makeHttpRequest(
url_product_detials, "GET", params);
// check your log for json response
Log.d("Single Product Details", json.toString());
// json success tag
try {
int success = json.getInt(TAG_SUCCESS);
if (success == 1) {
// successfully received product details
JSONArray productObj = json
.getJSONArray(TAG_PRODUCT); // JSON Array
// get first product object from JSON Array
final JSONObject product = productObj.getJSONObject(0);
// product with this pid found
// Edit Text
txtName = (TextView) findViewById(R.id.textView3);
runOnUiThread(new Runnable() {
@Override
public void run()
{
// TODO Auto-generated method stub
try {
txtName.setText(product.getString(TAG_DESCRIPTION));
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
});
}else{
// product with pid not found
}
} catch (JSONException e) {
e.printStackTrace();
}
return null;
}
/**
* After completing background task Dismiss the progress dialog
* **/
protected void onPostExecute(String file_url) {
// dismiss the dialog once got all details
pDialog.dismiss();
}
}
}
php代码：
<?php
/*
* Following code will get single product details
* A product is identified by product id (pid)
*/
// array for JSON response
$response = array();
// include db connect class
require_once __DIR__ . '/db_connect.php';
// connecting to db
$db = new DB_CONNECT();
// check for post data
if (isset($_GET["pid"])) {
$pid = $_GET['pid'];
// get a product from products table
$result = mysql_query("SELECT *FROM prediction WHERE pid = $pid");
if (!empty($result)) {
// check for empty result
if (mysql_num_rows($result) > 0) {
$result = mysql_fetch_array($result);
$product = array();
$product["pid"] = $result["pid"];
$product["number"] = $result["number"];
// $product["price"] = $result["price"];
$product["description"] = $result["description"];
$product["created_at"] = $result["created_at"];
$product["updated_at"] = $result["updated_at"];
// success
$response["success"] = 1;
// user node
$response["product"] = array();
array_push($response["product"], $product);
// echoing JSON response
echo json_encode($response);
} else {
// no product found
$response["success"] = 0;
$response["message"] = "No product found";
// echo no users JSON
echo json_encode($response);
}
} else {
// no product found
$response["success"] = 0;
$response["message"] = "No product found";
// echo no users JSON
echo json_encode($response);
}
} else {
// required field is missing
$response["success"] = 0;
$response["message"] = "Required field(s) is missing";
// echoing JSON response
echo json_encode($response);
}
?>
logcat的
11-06 05:53:45.590: I/Choreographer(1583): Skipped 46 frames! The application may be doing too much work on its main thread.
11-06 05:53:45.921: I/Choreographer(1583): Skipped 64 frames! The application may be doing too much work on its main thread.
11-06 05:53:46.341: I/Choreographer(1583): Skipped 65 frames! The application may be doing too much work on its main thread.
11-06 05:53:46.610: I/Choreographer(1583): Skipped 61 frames! The application may be doing too much work on its main thread.
11-06 05:53:47.070: I/Choreographer(1583): Skipped 90 frames! The application may be doing too much work on its main thread.
11-06 05:53:47.522: I/Choreographer(1583): Skipped 99 frames! The application may be doing too much work on its main thread.
11-06 05:53:49.491: I/Choreographer(1583): Skipped 297 frames! The application may be doing too much work on its main thread.
11-06 05:53:49.710: I/Choreographer(1583): Skipped 32 frames! The application may be doing too much work on its main thread.
11-06 05:53:50.810: I/Choreographer(1583): Skipped 121 frames! The application may be doing too much work on its main thread.
11-06 05:53:51.200: I/Choreographer(1583): Skipped 100 frames! The application may be doing too much work on its main thread.
11-06 05:53:51.591: I/Choreographer(1583): Skipped 69 frames! The application may be doing too much work on its main thread.
11-06 05:53:52.075: I/Choreographer(1583): Skipped 92 frames! The application may be doing too much work on its main thread.
11-06 05:53:52.692: I/Choreographer(1583): Skipped 158 frames! The application may be doing too much work on its main thread.
11-06 05:53:53.005: I/Choreographer(1583): Skipped 56 frames! The application may be doing too much work on its main thread.
11-06 05:53:53.402: I/Choreographer(1583): Skipped 95 frames! The application may be doing too much work on its main thread.
11-06 05:53:54.300: I/Choreographer(1583): Skipped 220 frames! The application may be doing too much work on its main thread.
11-06 05:53:54.890: I/Choreographer(1583): Skipped 111 frames! The application may be doing too much work on its main thread.
11-06 05:53:55.780: I/Choreographer(1583): Skipped 208 frames! The application may be doing too much work on its main thread.
11-06 05:53:55.970: I/Choreographer(1583): Skipped 46 frames! The application may be doing too much work on its main thread.
11-06 05:53:56.162: I/Choreographer(1583): Skipped 49 frames! The application may be doing too much work on its main thread.
11-06 05:53:56.360: I/Choreographer(1583): Skipped 37 frames! The application may be doing too much work on its main thread.
11-06 05:53:56.561: I/Choreographer(1583): Skipped 39 frames! The application may be doing too much work on its main thread.
11-06 05:53:56.819: I/Choreographer(1583): Skipped 65 frames! The application may be doing too much work on its main thread.
11-06 05:53:57.132: I/Choreographer(1583): Skipped 39 frames! The application may be doing too much work on its main thread.
11-06 05:53:57.270: I/Choreographer(1583): Skipped 36 frames! The application may be doing too much work on its main thread.
11-06 05:53:57.560: I/Choreographer(1583): Skipped 31 frames! The application may be doing too much work on its main thread.
11-06 05:53:58.000: I/Choreographer(1583): Skipped 42 frames! The application may be doing too much work on its main thread.
11-06 05:53:58.311: I/Choreographer(1583): Skipped 36 frames! The application may be doing too much work on its main thread.
11-06 05:53:58.510: I/Choreographer(1583): Skipped 43 frames! The application may be doing too much work on its main thread.
11-06 05:53:59.310: I/Choreographer(1583): Skipped 32 frames! The application may be doing too much work on its main thread.
11-06 05:53:59.610: I/Choreographer(1583): Skipped 38 frames! The application may be doing too much work on its main thread.
11-06 05:54:00.170: I/Choreographer(1583): Skipped 34 frames! The application may be doing too much work on its main thread.
11-06 05:54:00.380: I/Choreographer(1583): Skipped 39 frames! The application may be doing too much work on its main thread.
11-06 05:54:00.580: I/Choreographer(1583): Skipped 49 frames! The application may be doing too much work on its main thread.
11-06 05:54:00.930: I/Choreographer(1583): Skipped 73 frames! The application may be doing too much work on its main thread.
11-06 05:54:01.283: I/Choreographer(1583): Skipped 35 frames! The application may be doing too much work on its main thread.
11-06 05:54:01.460: I/Choreographer(1583): Skipped 36 frames! The application may be doing too much work on its main thread.
11-06 05:54:01.590: I/Choreographer(1583): Skipped 32 frames! The application may be doing too much work on its main thread.
11-06 05:54:02.050: I/Choreographer(1583): Skipped 36 frames! The application may be doing too much work on its main thread.
11-06 05:54:02.349: I/Choreographer(1583): Skipped 30 frames! The application may be doing too much work on its main thread.
11-06 05:54:02.679: I/Choreographer(1583): Skipped 55 frames! The application may be doing too much work on its main thread.
11-06 05:54:02.960: I/Choreographer(1583): Skipped 69 frames! The application may be doing too much work on its main thread.
11-06 05:54:03.130: I/Choreographer(1583): Skipped 32 frames! The application may be doing too much work on its main thread.
11-06 05:54:03.630: I/Choreographer(1583): Skipped 50 frames! The application may be doing too much work on its main thread.
11-06 05:54:03.950: I/Choreographer(1583): Skipped 31 frames! The application may be doing too much work on its main thread.
11-06 05:54:04.480: W/dalvikvm(1583): threadid=12: thread exiting with uncaught exception (group=0x40a71930)
11-06 05:54:04.540: I/Choreographer(1583): Skipped 35 frames! The application may be doing too much work on its main thread.
11-06 05:54:05.290: I/Choreographer(1583): Skipped 52 frames! The application may be doing too much work on its main thread.
11-06 05:54:05.460: I/Choreographer(1583): Skipped 35 frames! The application may be doing too much work on its main thread.
11-06 05:54:05.736: I/Choreographer(1583): Skipped 69 frames! The application may be doing too much work on its main thread.
11-06 05:54:05.942: I/Choreographer(1583): Skipped 52 frames! The application may be doing too much work on its main thread.
11-06 05:54:06.070: I/Choreographer(1583): Skipped 32 frames! The application may be doing too much work on its main thread.
11-06 05:54:06.601: I/Choreographer(1583): Skipped 33 frames! The application may be doing too much work on its main thread.
11-06 05:54:06.830: I/Choreographer(1583): Skipped 30 frames! The application may be doing too much work on its main thread.
11-06 05:54:07.000: I/Choreographer(1583): Skipped 42 frames! The application may be doing too much work on its main thread.
11-06 05:54:07.140: I/Choreographer(1583): Skipped 35 frames! The application may be doing too much work on its main thread.
11-06 05:54:07.260: I/Choreographer(1583): Skipped 30 frames! The application may be doing too much work on its main thread.
11-06 05:54:07.990: I/Choreographer(1583): Skipped 42 frames! The application may be doing too much work on its main thread.
11-06 05:54:09.140: I/Choreographer(1583): Skipped 33 frames! The application may be doing too much work on its main thread.
11-06 05:54:10.570: I/Choreographer(1583): Skipped 42 frames! The application may be doing too much work on its main thread.
11-06 05:54:10.980: I/Choreographer(1583): Skipped 36 frames! The application may be doing too much work on its main thread.
11-06 05:54:11.160: I/Choreographer(1583): Skipped 30 frames! The application may be doing too much work on its main thread.
11-06 05:54:11.290: I/Choreographer(1583): Skipped 35 frames! The application may be doing too much work on its main thread.
11-06 05:54:12.060: I/Choreographer(1583): Skipped 42 frames! The application may be doing too much work on its main thread.
11-06 05:54:13.600: E/AndroidRuntime(1583): FATAL EXCEPTION: AsyncTask #2
11-06 05:54:13.600: E/AndroidRuntime(1583): java.lang.RuntimeException: An error occured while executing doInBackground()
11-06 05:54:13.600: E/AndroidRuntime(1583): at android.os.AsyncTask$3.done(AsyncTask.java:299)
11-06 05:54:13.600: E/AndroidRuntime(1583): at java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:352)
11-06 05:54:13.600: E/AndroidRuntime(1583): at java.util.concurrent.FutureTask.setException(FutureTask.java:219)
11-06 05:54:13.600: E/AndroidRuntime(1583): at java.util.concurrent.FutureTask.run(FutureTask.java:239)
11-06 05:54:13.600: E/AndroidRuntime(1583): at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:230)
11-06 05:54:13.600: E/AndroidRuntime(1583): at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1080)
11-06 05:54:13.600: E/AndroidRuntime(1583): at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:573)
11-06 05:54:13.600: E/AndroidRuntime(1583): at java.lang.Thread.run(Thread.java:856)
11-06 05:54:13.600: E/AndroidRuntime(1583): Caused by: android.view.ViewRootImpl$CalledFromWrongThreadException: Only the original thread that created a view hierarchy can touch its views.
11-06 05:54:13.600: E/AndroidRuntime(1583): at android.view.ViewRootImpl.checkThread(ViewRootImpl.java:4746)
11-06 05:54:13.600: E/AndroidRuntime(1583): at android.view.ViewRootImpl.requestLayout(ViewRootImpl.java:823)
11-06 05:54:13.600: E/AndroidRuntime(1583): at android.view.View.requestLayout(View.java:15473)
11-06 05:54:13.600: E/AndroidRuntime(1583): at android.view.View.requestLayout(View.java:15473)
11-06 05:54:13.600: E/AndroidRuntime(1583): at android.view.View.requestLayout(View.java:15473)
11-06 05:54:13.600: E/AndroidRuntime(1583): at android.view.View.requestLayout(View.java:15473)
11-06 05:54:13.600: E/AndroidRuntime(1583): at android.view.View.requestLayout(View.java:15473)
11-06 05:54:13.600: E/AndroidRuntime(1583): at android.widget.ScrollView.requestLayout(ScrollView.java:1440)
11-06 05:54:13.600: E/AndroidRuntime(1583): at android.view.View.requestLayout(View.java:15473)
11-06 05:54:13.600: E/AndroidRuntime(1583): at android.widget.RelativeLayout.requestLayout(RelativeLayout.java:318)
11-06 05:54:13.600: E/AndroidRuntime(1583): at android.view.View.requestLayout(View.java:15473)
11-06 05:54:13.600: E/AndroidRuntime(1583): at android.widget.TextView.checkForRelayout(TextView.java:6452)
11-06 05:54:13.600: E/AndroidRuntime(1583): at android.widget.TextView.setText(TextView.java:3696)
11-06 05:54:13.600: E/AndroidRuntime(1583): at android.widget.TextView.setText(TextView.java:3554)
11-06 05:54:13.600: E/AndroidRuntime(1583): at android.widget.TextView.setText(TextView.java:3529)
11-06 05:54:13.600: E/AndroidRuntime(1583): at com.example.numero.FirstResult$GetProductDetails.doInBackground(FirstResult.java:109)
11-06 05:54:13.600: E/AndroidRuntime(1583): at com.example.numero.FirstResult$GetProductDetails.doInBackground(FirstResult.java:1)
11-06 05:54:13.600: E/AndroidRuntime(1583): at android.os.AsyncTask$2.call(AsyncTask.java:287)
11-06 05:54:13.600: E/AndroidRuntime(1583): at java.util.concurrent.FutureTask.run(FutureTask.java:234)
11-06 05:54:13.600: E/AndroidRuntime(1583): ... 4 more
11-06 05:54:13.683: I/Choreographer(1583): Skipped 38 frames! The application may be doing too much work on its main thread.
11-06 05:54:13.930: I/Choreographer(1583): Skipped 50 frames! The application may be doing too much work on its main thread.
11-06 05:54:14.540: I/Choreographer(1583): Skipped 41 frames! The application may be doing too much work on its main thread.
11-06 05:54:14.660: I/Choreographer(1583): Skipped 30 frames! The application may be doing too much work on its main thread.
11-06 05:54:14.910: I/Choreographer(1583): Skipped 31 frames! The application may be doing too much work on its main thread.
11-06 05:54:15.971: I/Choreographer(1583): Skipped 30 frames! The application may be doing too much work on its main thread.
11-06 05:54:16.300: I/Choreographer(1583): Skipped 35 frames! The application may be doing too much work on its main thread.
11-06 05:54:17.550: I/Choreographer(1583): Skipped 39 frames! The application may be doing too much work on its main thread.
11-06 05:54:17.750: I/Choreographer(1583): Skipped 50 frames! The application may be doing too much work on its main thread.
11-06 05:54:18.203: I/Choreographer(1583): Skipped 117 frames! The application may be doing too much work on its main thread.
11-06 05:54:18.441: I/Choreographer(1583): Skipped 61 frames! The application may be doing too much work on its main thread.
11-06 05:54:19.310: I/Choreographer(1583): Skipped 223 frames! The application may be doing too much work on its main thread.
11-06 05:54:21.160: I/Choreographer(1583): Skipped 472 frames! The application may be doing too much work on its main thread.
11-06 05:54:22.531: I/Choreographer(1583): Skipped 356 frames! The application may be doing too much work on its main thread.
11-06 05:54:23.190: I/Choreographer(1583): Skipped 111 frames! The application may be doing too much work on its main thread.
11-06 05:54:23.580: E/WindowManager(1583): Activity com.example.numero.FirstResult has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView{40e4b358 V.E..... R.....ID 0,0-480,144} that was originally added here
11-06 05:54:23.580: E/WindowManager(1583): android.view.WindowLeaked: Activity com.example.numero.FirstResult has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView{40e4b358 V.E..... R.....ID 0,0-480,144} that was originally added here
11-06 05:54:23.580: E/WindowManager(1583): at android.view.ViewRootImpl.<init>(ViewRootImpl.java:354)
11-06 05:54:23.580: E/WindowManager(1583): at android.view.WindowManagerGlobal.addView(WindowManagerGlobal.java:216)
11-06 05:54:23.580: E/WindowManager(1583): at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:69)
11-06 05:54:23.580: E/WindowManager(1583): at android.app.Dialog.show(Dialog.java:281)
11-06 05:54:23.580: E/WindowManager(1583): at com.example.numero.FirstResult$GetProductDetails.onPreExecute(FirstResult.java:85)
11-06 05:54:23.580: E/WindowManager(1583): at android.os.AsyncTask.executeOnExecutor(AsyncTask.java:586)
11-06 05:54:23.580: E/WindowManager(1583): at android.os.AsyncTask.execute(AsyncTask.java:534)
11-06 05:54:23.580: E/WindowManager(1583): at com.example.numero.FirstResult.onCreate(FirstResult.java:62)
11-06 05:54:23.580: E/WindowManager(1583): at android.app.Activity.performCreate(Activity.java:5104)
11-06 05:54:23.580: E/WindowManager(1583): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1080)
11-06 05:54:23.580: E/WindowManager(1583): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2144)
11-06 05:54:23.580: E/WindowManager(1583): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2230)
11-06 05:54:23.580: E/WindowManager(1583): at android.app.ActivityThread.access$600(ActivityThread.java:141)
11-06 05:54:23.580: E/WindowManager(1583): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1234)
11-06 05:54:23.580: E/WindowManager(1583): at android.os.Handler.dispatchMessage(Handler.java:99)
11-06 05:54:23.580: E/WindowManager(1583): at android.os.Looper.loop(Looper.java:137)
11-06 05:54:23.580: E/WindowManager(1583): at android.app.ActivityThread.main(ActivityThread.java:5041)
11-06 05:54:23.580: E/WindowManager(1583): at java.lang.reflect.Method.invokeNative(Native Method)
11-06 05:54:23.580: E/WindowManager(1583): at java.lang.reflect.Method.invoke(Method.java:511)
11-06 05:54:23.580: E/WindowManager(1583): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
11-06 05:54:23.580: E/WindowManager(1583): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
11-06 05:54:23.580: E/WindowManager(1583): at dalvik.system.NativeStart.main(Native Method)
11-06 05:54:23.600: I/Choreographer(1583): Skipped 42 frames! The application may be doing too much work on its main thread.
11-06 05:54:50.233: I/Process(1583): Sending signal. PID: 1583 SIG: 9
11-06 05:54:56.100: I/Choreographer(1623): Skipped 55 frames! The application may be doing too much work on its main thread.
11-06 05:54:56.520: D/gralloc_goldfish(1623): Emulator without GPU emulation detected.
答案 0 :(得分：1)
您无法使用线程内的txt1.setText(getIntent().getStringExtra("name10"));和txtName.setText(product.getString(TAG_DESCRIPTION));修改文本，因为您只能修改UI线程中的视图。改为使用处理程序，让他更改文本。
试试这个：
runOnUiThread(new Runnable() {
@Override
public void run() {
// TODO Auto-generated method stub
txtName.setText(product.getString(TAG_DESCRIPTION));
}