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它給出了沒有錯誤，但是當一個運行和開始活動它給app_name停止工作。在Android清單我添加了互聯網permission.URL路徑工作完全正常，因爲我把它放在瀏覽器中直接它給予所需結果。 LogCat。我是Android應用程序開發新手。很好的幫助我，我需要它的最後一年的項目。 StartingPoint.javaAndroid應用程序沒有連接到xamp數據庫
public class StartingPoint extends Activity implements OnClickListener {
Button bed;
@Override
protected void onCreate(Bundle savedInstanceState) {
setContentView(R.layout.activity_starting_point);
inialize();
bed.setOnClickListener(MenuListener);
}
private void inialize() {
// TODO Auto-generated method stub
bed = (Button) findViewById(R.id.bActivityBed);
mirror = (Button) findViewById(R.id.bActivityMirror);
}
private OnClickListener MenuListener = new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
switch(v.getId()) {
case R.id.bActivitySofa:
Intent i = new Intent("com.example.pb.SOFA");
startActivity(i);
break;
case R.id.bActivityChair:
Intent chair = new Intent("com.example.pb.CHAIR");
startActivity(chair);
break;
case R.id.bActivityBed:
Intent bed = new Intent("com.example.pb.BED");
startActivity(bed);
break;
case R.id.bActivityMirror:
Intent mirror = new Intent("com.example.pb.MIRROR");
startActivity(mirror);
break;
}
}
};}
Bed.java（（可能實際工作類，是造成問題））
public class Bed extends ListActivity {
private ProgressDialog pDialog;
JSONParser jParser = new JSONParser();
ArrayList<HashMap<String, String>> productsList;
private static String url_all_products="http://192.168.1.3/AndriodConnect/ReadProducts.php";
private static final String TAG_SUCCESS = "success";
private static final String TAG_PRODUCTS = "products";
private static final String TAG_PID = "prodId";
private static final String TAG_NAME = "prodName";
JSONArray products = null;
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.bed);
productsList = new ArrayList<HashMap<String,String>>();
new LoadAllProducts().execute();
ListView lv = getListView();
lv.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
// getting values from selected ListItem
String pid = ((TextView) view.findViewById(R.id.tvId)).getText()
.toString();
Intent in = new Intent(getApplicationContext(),
Sofa.class);
in.putExtra(TAG_PID, pid);
startActivityForResult(in, 100);
}
});
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
// TODO Auto-generated method stub
super.onActivityResult(requestCode, resultCode, data);
if(resultCode==100) {
Intent intent = getIntent();
finish();
startActivity(intent);
}
}
public class LoadAllProducts extends AsyncTask<String, String, String> {
@Override
protected void onPreExecute() {
// TODO Auto-generated method stub
super.onPreExecute();
pDialog = new ProgressDialog(Bed.this);
pDialog.setMessage("Loading products.Plz wait");
pDialog.setIndeterminate(false);
pDialog.show();
}
@Override
protected String doInBackground(String... args) {
// TODO Auto-generated method stub
List<NameValuePair> params = new ArrayList<NameValuePair>();
JSONObject json = jParser.makeHttpRequest(url_all_products, "Get", params);
Log.d("All products", json.toString());
try {
int success = json.getInt(TAG_SUCCESS);
if(success == 1) {
products = json.getJSONArray(TAG_PRODUCTS);
for(int i=0; i<products.length();i++) {
JSONObject c = products.getJSONObject(i);
String id = c.getString(TAG_PID);
String name = c.getString(TAG_NAME);
HashMap<String,String> map = new HashMap<String,String>();
map.put(TAG_PID, id);
map.put(TAG_NAME, name);
productsList.add(map);
}
}
}
catch(JSONException e) {
e.printStackTrace();
}
return null;
}
@Override
protected void onPostExecute(String result) {
// TODO Auto-generated method stub
pDialog.dismiss();
runOnUiThread(new Runnable() {
public void run() {
ListAdapter adapter = new SimpleAdapter(Bed.this, productsList,
R.layout.list_item,new String[] {TAG_PID,TAG_NAME},
new int[] {R.id.tvId, R.id.tvName});
setListAdapter(adapter);
}
});
}
}
}
JSONParser.java
public class JSONParser {
static InputStream is = null;
static JSONObject jObj = null;
static String json = "";
// constructor
public JSONParser() {
}
// function get json from url
// by making HTTP POST or GET mehtod
public JSONObject makeHttpRequest(String url, String method,
List<NameValuePair> params) {
// Making HTTP request
try {
// check for request method
if(method == "POST"){
// request method is POST
// defaultHttpClient
DefaultHttpClient httpClient = new DefaultHttpClient();
HttpPost httpPost = new HttpPost(url);
httpPost.setEntity(new UrlEncodedFormEntity(params));
HttpResponse httpResponse = httpClient.execute(httpPost);
HttpEntity httpEntity = httpResponse.getEntity();
is = httpEntity.getContent();
}else if(method == "GET"){
// request method is GET
DefaultHttpClient httpClient = new DefaultHttpClient();
String paramString = URLEncodedUtils.format(params, "utf-8");
url += "?" + paramString;
HttpGet httpGet = new HttpGet(url);
HttpResponse httpResponse = httpClient.execute(httpGet);
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;
}
}
AndroidManifest
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.pb"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="17"
android:targetSdkVersion="22" />
<uses-permission android:name="android.permission.INTERNET" />
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name=".Splash"
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=".StartingPoint"
android:label="@string/app_name" >
<intent-filter>
<action android:name="com.example.pb.STARTINGPOINT" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
<activity
android:name=".Login"
android:label="@string/app_name" >
<intent-filter>
<action android:name="com.example.pb.LOGIN" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
<activity
android:name=".Prefs"
android:label="@string/app_name" >
<intent-filter>
<action android:name="com.example.pb.PREFS" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
<activity
android:name=".AboutUs"
android:label="@string/app_name" >
<intent-filter>
<action android:name="com.example.pb.ABOUTUS" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
<activity
android:name=".Sofa"
android:label="@string/app_name" >
<intent-filter>
<action android:name="com.example.pb.SOFA" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
<activity
android:name=".Mirror"
android:label="@string/app_name" >
<intent-filter>
<action android:name="com.example.pb.MIRROR" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
<activity
android:name=".Bed"
android:label="@string/app_name" >
<intent-filter>
<action android:name="com.example.pb.BED" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
<activity
android:name=".Chair"
android:label="@string/app_name" >
<intent-filter>
<action android:name="com.example.pb.CHAIR" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
<activity
android:name=".AllProductsActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="com.example.pb.PRODUCTS" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
</application>
</manifest>
你得到的錯誤是什麼？ – Pavya
，並在清單 – Pavya
中添加並在清單中添加 –
Pavya