我正在尝试运行android项目。项目在项目文件夹上有一个红色的x,但子文件夹中没有一个具有红色x。没有突出显示错误的代码。不幸的是,我的项目都没有执行。当我作为项目运行时,它说出了这个错误。
它也没有在问题标签中显示任何错误。
如何解决此问题?
我的java构建路径
修改
这是我的代码
public class AndroidLoginActivity extends Activity implements OnClickListener {
EditText username, password;
Button login;
String user, pass;
HttpClient httpclient;
HttpPost httppost;
ArrayList<NameValuePair> nameValuePair;
HttpResponse response;
HttpEntity entity;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
initialise();
}
private void initialise() {
// TODO Auto-generated method stub
username = (EditText)findViewById(R.id.etUsername);
password = (EditText)findViewById(R.id.etPassword);
login = (Button)findViewById(R.id.btnLogin);
login.setOnClickListener(this);
}
public void onClick(View v) {
httpclient = new DefaultHttpClient();
httppost = new HttpPost("http://10.0.2.2/android_login/index.php");
user = username.getText().toString();
pass = password.getText().toString();
try {
nameValuePair = new ArrayList<NameValuePair>();
nameValuePair.add(new BasicNameValuePair("username", user));
nameValuePair.add(new BasicNameValuePair("password", pass));
httppost.setEntity(new UrlEncodedFormEntity(nameValuePair));
response = httpclient.execute(httppost);
if(response.getStatusLine().getStatusCode() == 200) {
entity = response.getEntity();
if(entity != null) {
InputStream instream = entity.getContent();
JSONObject jsonResponse = new JSONObject(convertStreamToString(instream));
String retUser = jsonResponse.getString("username"); //mysql table field
String retPass = jsonResponse.getString("password");
if(username.equals(retUser) && password.equals(retPass)) {
SharedPreferences sp = getSharedPreferences("logindetails",0);
SharedPreferences.Editor spedit = sp.edit();
spedit.putString("user", user);
spedit.putString("pass", pass);
spedit.commit();
Toast.makeText(getBaseContext(), "Success", Toast.LENGTH_SHORT).show();
} else {
Toast.makeText(getBaseContext(), "Login Failed", Toast.LENGTH_SHORT).show();
}
}
}
} catch (Exception e) {
e.printStackTrace();
Toast.makeText(getBaseContext(), "Login Failed", Toast.LENGTH_SHORT).show();
}
}
public static String convertStreamToString(InputStream is) {
BufferedReader reader = new BufferedReader(new InputStreamReader(is));
StringBuilder sb = new StringBuilder();
String line = null;
try {
while((line = reader.readLine()) != null) {
sb.append(line + "\n");
}
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
is.close();
} catch(IOException e) {
e.printStackTrace();
}
}
return sb.toString();
}
}
这是我的main.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<EditText
android:id="@+id/etUsername"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Username..." >
</EditText>
<EditText
android:id="@+id/etPassword"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:inputType="textPassword"
android:text="Password..." />
<Button
android:id="@+id/btnLogin"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Login" />
</LinearLayout>
这是我的清单文件
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.zafar.androidlogin"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk android:minSdkVersion="10" />
<uses-permission android:name="android.permission.INTERNET"/>
<application
android:icon="@drawable/ic_launcher"
android:label="@string/app_name" >
<activity
android:name=".AndroidLoginActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
错误记录
答案 0 :(得分:4)
我正在回答我自己的问题,以便如果其他人遇到同样的问题,那么他们就很容易找到解决方案。
<强>解决方案强>
我删除了此路径debug.keystore
C:\Users\Administrator\.android
然后我清理了项目并且它有效。
答案 1 :(得分:0)
右键单击您的项目→android工具→android支持库。