我不明白为什么会发生这种情况？ 有人有想法吗？ 我正在尝试发送＆amp;从PHP n接收数据动态附加xml布局中的数据。 任何人有任何想法？当我使用asynctask将数据发送到PHP时，这些东西运行良好。 但是当我试图接收并附加这个logcat给了我哎。
ActivityMain.java
package com.example.myweb;
import java.io.BufferedReader;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.UnsupportedEncodingException;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.atomic.AtomicInteger;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.util.EntityUtils;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import org.w3c.dom.Document;
import org.w3c.dom.Node;
import org.xml.sax.SAXException;
import android.os.AsyncTask;
import android.os.Build;
import android.os.Bundle;
import android.os.StrictMode;
import android.renderscript.Element;
import android.annotation.SuppressLint;
import android.annotation.TargetApi;
import android.app.Activity;
import android.util.Log;
import android.view.Menu;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageButton;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.RelativeLayout;
import android.widget.TextView;
public class MainActivity extends Activity {
Button button;
EditText emailBox;
EditText passwordBox;
String emailId;
String passwordId;
private static final AtomicInteger sNextGeneratedId = new AtomicInteger(1);
@SuppressLint("NewApi") @TargetApi(Build.VERSION_CODES.GINGERBREAD) @Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
if (android.os.Build.VERSION.SDK_INT > 9) {
StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
StrictMode.setThreadPolicy(policy);
}
button = (Button) findViewById(R.id.login1);
emailBox = (EditText)findViewById(R.id.email);
passwordBox = (EditText)findViewById(R.id.password);
button.setOnClickListener(new Button.OnClickListener() {
public void onClick(View v) {
try {
new toPHP(MainActivity.this).execute();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
});
}
public void afterEffect(String str){
TextView textV1 = (TextView)findViewById(R.id.textV1);
textV1.setText(str);
}
public void showChatList(JSONArray json){
/*
Document doc;
String fileloc = "C:\\Users\\Admin\\workspace\\myWeb\\res\\layout\\activity_main.xml";
try {
doc = DocumentBuilderFactory.newInstance().newDocumentBuilder().parse(new File(fileloc));
//Node nR = doc.getElementById("mainR");
removeChilds(nR);
} catch (SAXException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (ParserConfigurationException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
*/
final RelativeLayout rl = (RelativeLayout) findViewById(R.id.mainR);
for (int i = 0; i < json.length(); i++) {
try {
JSONObject c = json.getJSONObject(i);
LinearLayout LL = new LinearLayout(this);
ImageView pp = new ImageView(this);
TextView name = new TextView(this);
TextView username = new TextView(this);
int generatedId = generateViewId();
pp.setId(generatedId);
LL.setOrientation(LinearLayout.HORIZONTAL);
new ImageLoadTask(pp).execute("http://117.99.55.83/"+c.getString("img"));
name.setText(c.getString("name"));
username.setText(c.getString("username"));
LL.addView(pp);
LL.addView(name);
LL.addView(username);
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
public static void removeChilds(Node node) {
while (node.hasChildNodes())
node.removeChild(node.getFirstChild());
}
public static int generateViewId() {
for (;;) {
final int result = sNextGeneratedId.get();
// aapt-generated IDs have the high byte nonzero; clamp to the range under that.
int newValue = result + 1;
if (newValue > 0x00FFFFFF) newValue = 1; // Roll over to 1, not 0.
if (sNextGeneratedId.compareAndSet(result, newValue)) {
return result;
}
}
}
}
toPHP
package com.example.myweb;
import java.io.BufferedReader;
import java.io.Console;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.UnsupportedEncodingException;
import java.util.ArrayList;
import java.util.List;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.util.EntityUtils;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import android.os.AsyncTask;
import android.os.Bundle;
import android.app.Activity;
import android.util.Log;
import android.view.Menu;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageButton;
import android.widget.ProgressBar;
import android.widget.TextView;
public class toPHP extends AsyncTask<Object, Object, JSONArray>{
final MainActivity main;
public toPHP(MainActivity main) {
this.main = main;
}
private JSONParser jsonParser = new JSONParser();
String email,password;
EditText emailBox;
EditText passwordBox;
@Override
protected void onPreExecute() {
super.onPreExecute();
TextView textV1 = (TextView)main.findViewById(R.id.textV1);
ProgressBar spinner = (ProgressBar)main.findViewById(R.id.spinner);
spinner.setVisibility(View.VISIBLE);
textV1.setText("Reaching em!!");
}
@Override
protected JSONArray doInBackground(Object... v) {
//main = (MainActivity)parameters[0];
//main.afterEffect("sending...");
emailBox = (EditText) main.findViewById(R.id.email);
passwordBox = (EditText) main.findViewById(R.id.password);
email = emailBox.getText().toString();
password = passwordBox.getText().toString();
JSONArray json = null;
json = getUserLoggedIn(email, password);
//main.afterEffect("drawing");
return json;
}
public JSONArray getUserLoggedIn(String email,String password){
JSONArray json = null;
/*
HttpClient client = new DefaultHttpClient();
HttpPost post = new HttpPost("http://localhost/testand.php");
*/
List<NameValuePair> pairs = new ArrayList<NameValuePair>();
pairs.add(new BasicNameValuePair("email", email));
pairs.add(new BasicNameValuePair("password", password));
//post.setEntity(new UrlEncodedFormEntity(pairs));
//HttpResponse response = client.execute(post);
//HttpEntity resEntity = response.getEntity();
//if (resEntity != null) {
//String responseStr = EntityUtils.toString(resEntity).trim();
json = jsonParser.getJSONFromUrl("http://117.99.55.83/resource/android/CHATS.php", pairs);
//}
return json;
}
protected void onPostExecute(JSONArray json) {
main.showChatList(json);
}
}
logcat的
12-30 17:47:34.418: I/Choreographer(736): Skipped 41 frames! The application may be doing too much work on its main thread.
12-30 17:47:37.221: D/dalvikvm(736): GC_CONCURRENT freed 272K, 13% free 2757K/3168K, paused 77ms+79ms, total 303ms