当我在GoogleAPIs 模拟器上使用下面的代码时，它工作正常，但是当我使用代码在Galaxy Nexus 模拟器上运行时，它崩溃了，在我的手机上也是一样，为什么？我需要什么才能使此代码有效？请指导我。班上：
import java.io.IOException;
import java.io.InputStream;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;
import org.json.JSONException;
import org.json.JSONObject;
import android.app.Activity;
import android.content.Context;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
public class Get_Location_Name extends Activity implements OnClickListener {
private EditText ET1;
private EditText ET2;
private TextView TV1;
private Button B1;
static String result ="";
double lat=0;
double lng=0;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.location_name);
ET1=(EditText)this.findViewById(R.id.ET1_location_name);
ET2=(EditText)this.findViewById(R.id.ET2_location_name);
TV1=(TextView)this.findViewById(R.id.TV1_Location_name);
B1=(Button)this.findViewById(R.id.B1_Location_name);
B1.setOnClickListener(this);
}
@Override
public void onClick(View arg0) {
if(!ET1.getText().toString().isEmpty() && !ET2.getText().toString().isEmpty())
{
lng=Double.parseDouble(ET1.getText().toString());
lat=Double.parseDouble(ET2.getText().toString());
if(this.isOnline())
{
JSONObject ret = getLocationInfo();
JSONObject location;
String location_string="";
try {
location = ret.getJSONArray("results").getJSONObject(0);
location_string = location.getString("formatted_address");
Log.d("test", "formattted address:" + location_string);
} catch (JSONException e1) {
e1.printStackTrace();
}
TV1.setText(" "+location_string);
}
else
TV1.setText("no internet connection");
}
else
TV1.setText("Enter the Lat. and Lon.");
}
public boolean isOnline() {
// this method works fine(no problems)
}
public JSONObject getLocationInfo() {
HttpGet httpGet = new HttpGet("http://maps.google.com/maps/api/geocode/json?latlng="+lat+","+lng+"&sensor=true");
HttpClient client = new DefaultHttpClient();
HttpResponse response;
StringBuilder stringBuilder = new StringBuilder();
try {
response = client.execute(httpGet);
HttpEntity entity = response.getEntity();
InputStream stream = entity.getContent();
int b;
while ((b = stream.read()) != -1) {
stringBuilder.append((char) b);
}
} catch (ClientProtocolException e) {
} catch (IOException e) {
}
JSONObject jsonObject = new JSONObject();
try {
jsonObject = new JSONObject(stringBuilder.toString());
} catch (JSONException e) {
e.printStackTrace();
}
return jsonObject;
}
}
注意：该方法getLocationInfo()在GoogleAPIs emulator上运行良好。
布局location_name.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" >
<TableRow
android:layout_width="fill_parent"
android:layout_height="wrap_content" >
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Longitude"
android:textAppearance="?android:attr/textAppearanceMedium" />
<EditText
android:id="@+id/ET1_location_name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:ems="10"
>
<requestFocus />
</EditText>
</TableRow>
<TableRow
android:layout_width="fill_parent"
android:layout_height="wrap_content" >
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text=" Latitude"
android:textAppearance="?android:attr/textAppearanceMedium" />
<EditText
android:id="@+id/ET2_location_name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:ems="10"
/>
</TableRow>
<TableRow
android:layout_width="match_parent"
android:layout_height="wrap_content"
>
<Button
android:id="@+id/B1_Location_name"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Get Location Name" />
</TableRow>
<TableRow
android:layout_width="match_parent"
android:layout_height="wrap_content" >
<TextView
android:id="@+id/TV1_Location_name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Location Name"
android:textAppearance="?android:attr/textAppearanceMedium" />
</TableRow>
</LinearLayout>
manifest.xml文件：
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.hellp1_package"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="10"
android:targetSdkVersion="14" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name="com.example.hellp1_package.MainActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name="/////"></activity>
<activity android:name="///////"></activity>
<activity android:name="//////"></activity>
<activity android:name="///////"></activity>
<activity android:name="Get_Location_Name"></activity>
</application>
</manifest>
我是安卓新手。请帮我。