如何從其他圖書館活動調用一個圖書館活動？

我沒有任何其他的方式來問這個問題，所以這裏是我的問題：我有一個庫項目，我用於兩個應用程序和它的工作。現在，我爲這兩個應用程序提供了公共登錄頁面和登錄功能，並避免重複我想爲這兩個應用程序使用相同登錄活動的代碼。這裏要說的是我用如何從其他圖書館活動調用一個圖書館活動？

庫項目

 public class CanteenPreference { 

     // Static variables declaration 
     private static final String KEY_INSTANCE_URL = "instance_url"; 
     private static final String KEY_USER_NAME = "user_name_preferences"; 
     private static final String KEY_ACCESS_KEY = "access_key_preferences"; 
     public static final String DEFAULT_URL = "some url"; 
     private static final String URL_SUFFIX = "/api/call"; 

     /** 
     * Gets the preferred url. 
     * 
     * @param activity 
     * @return 
     */ 
     public static String getUrl(Activity activity){ 
      SharedPreferences sharedPrefs = PreferenceManager.getDefaultSharedPreferences(activity.getApplicationContext()); 
      String previousURL = sharedPrefs.getString(KEY_INSTANCE_URL, null); 
      if (previousURL == null) { 
       Intent in=new Intent(activity,LoginActivity.class); 
       activity.startActivity(in); 

       previousURL = sharedPrefs.getString(KEY_INSTANCE_URL, DEFAULT_URL + URL_SUFFIX); 
      } 
      return previousURL; 
     } 

     /** 
     * Gets the preferred user name. 
     * 
     * @param activity 
     * @return 
     */ 
     public static String getUserName(Activity activity){ 
      SharedPreferences sharedPrefs = PreferenceManager.getDefaultSharedPreferences(activity.getApplicationContext()); 
      String previousUsername = sharedPrefs.getString(KEY_USER_NAME, null); 
      if (previousUsername == null) { 
       activity.startActivity(new Intent(activity, LoginActivity.class)); 

       previousUsername = sharedPrefs.getString(KEY_USER_NAME, "test"); 
      } 
      return previousUsername; 
     } 

     /** 
     * Gets the preferred password. 
     * 
     * @param activity 
     * @return 
     */ 
     public static String getPassword(Activity activity){ 
      SharedPreferences sharedPrefs = PreferenceManager.getDefaultSharedPreferences(activity.getApplicationContext()); 
      String previousPassword = sharedPrefs.getString(KEY_ACCESS_KEY, null); 
      if (previousPassword == null) { 
       activity.startActivity(new Intent(activity, LoginActivity.class)); 

       previousPassword = sharedPrefs.getString(KEY_ACCESS_KEY, "test"); 
      } 
      return previousPassword; 
     } 

     /** 
     * Writes the preferences 
     * 
     * @param activity 
     * @param url 
     * @param userName 
     * @param password 
     * @return true if committed 
     */ 
     public static boolean write(Activity activity, String url, String userName, String password){ 
      SharedPreferences sharedPrefs = PreferenceManager.getDefaultSharedPreferences(activity.getApplicationContext()); 
      SharedPreferences.Editor prefEditor = sharedPrefs.edit(); 

      prefEditor.putString(KEY_INSTANCE_URL, url + URL_SUFFIX); 
      prefEditor.putString(KEY_USER_NAME, userName); 
      prefEditor.putString(KEY_ACCESS_KEY, password); 
      return prefEditor.commit(); 
     } 
    }

和loginactivity在庫代碼

public class LoginActivity extends Activity { 
    private EditText mUrlInput; 
    private EditText mUserInput; 
    private EditText mPasswordInput; 
    private Button mButton; 

    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.login_page); 
     mButton = (Button) findViewById(R.id.loginButt); 
     mUrlInput = (EditText) findViewById(R.id.urlInput); 
     mUserInput = (EditText) findViewById(R.id.userInput); 
     mPasswordInput = (EditText) findViewById(R.id.passwordInput); 

     mUrlInput.setText(CanteenPreference.DEFAULT_URL); 

     mButton.setOnClickListener(new OnClickListener() { 
      public void onClick(View v) { 
       final String url = mUrlInput.getText().toString(); 
       final String userName = mUserInput.getText().toString(); 
       final String password = mPasswordInput.getText().toString(); 

       if (url == null || url.length() == 0 || userName == null 
         || userName.length() == 0 || password == null 
         || password.length() == 0) { 
        Toast toast = Toast.makeText(LoginActivity.this, 
          "All fields are required", Toast.LENGTH_SHORT); 
        toast.show(); 

       } else { 

        Thread loginThread = new Thread() { 
         @Override 
         public void run() { 
          try { 
           DefaultHttpClient httpClient = new DefaultHttpClient(); 
           HttpPost httpPost = new HttpPost(url); 
           List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(); 

           nameValuePairs.add(new BasicNameValuePair(
             "username", userName)); 
           nameValuePairs.add(new BasicNameValuePair(
             "password", password)); 

           httpPost.setEntity(new UrlEncodedFormEntity(
             nameValuePairs)); 
           HttpResponse httpResponse = httpClient 
             .execute(httpPost); 

           if (httpResponse.getStatusLine() 
             .getStatusCode() != HttpStatus.SC_OK) { 
            throw new Exception("Invalid credentials !"); 
           } 

          } catch (Exception e) { 
           Log.d("Login: ", "Invalid credentials", e); 
           Toast toast = Toast.makeText(
             LoginActivity.this, 
             "Invalid credentials", 
             Toast.LENGTH_SHORT); 
           toast.show(); 
          } 
          // write the preferences 
          CanteenPreference.write(LoginActivity.this, url, 
            userName, password); 
          // finish the activity 
          LoginActivity.this.finish(); 
         } 
        }; 

        loginThread.start(); 
       } 
      } 
     }); 
    } 
}

我已經在這兩個應用程序和庫定義登錄活動清單還是我獲得以下logcat`

09-07 16:00:12.436: W/ActivityThread(1429): Application com.jumbybay.ferry is waiting for the debugger on port 8100... 
09-07 16:00:12.465: I/System.out(1429): Sending WAIT chunk 
09-07 16:00:12.465: I/dalvikvm(1429): Debugger is active 
09-07 16:00:12.476: I/System.out(1429): Debugger has connected 
09-07 16:00:12.476: I/System.out(1429): waiting for debugger to settle... 
09-07 16:00:12.685: I/System.out(1429): waiting for debugger to settle... 
09-07 16:00:12.836: I/dalvikvm(1429): threadid=3: reacting to signal 3 
09-07 16:00:12.896: I/System.out(1429): waiting for debugger to settle... 
09-07 16:00:12.896: I/dalvikvm(1429): Wrote stack traces to '/data/anr/traces.txt' 
09-07 16:00:13.096: I/System.out(1429): waiting for debugger to settle... 
09-07 16:00:13.306: I/System.out(1429): waiting for debugger to settle... 
09-07 16:00:13.336: I/dalvikvm(1429): threadid=3: reacting to signal 3 
09-07 16:00:13.346: I/dalvikvm(1429): Wrote stack traces to '/data/anr/traces.txt' 
09-07 16:00:13.505: I/System.out(1429): waiting for debugger to settle... 
09-07 16:00:13.708: I/System.out(1429): waiting for debugger to settle... 
09-07 16:00:13.836: I/dalvikvm(1429): threadid=3: reacting to signal 3 
09-07 16:00:13.856: I/dalvikvm(1429): Wrote stack traces to '/data/anr/traces.txt' 
09-07 16:00:13.906: I/System.out(1429): waiting for debugger to settle... 
09-07 16:00:14.106: I/System.out(1429): waiting for debugger to settle... 
09-07 16:00:14.306: I/System.out(1429): waiting for debugger to settle... 
09-07 16:00:14.376: I/dalvikvm(1429): threadid=3: reacting to signal 3 
09-07 16:00:14.385: I/dalvikvm(1429): Wrote stack traces to '/data/anr/traces.txt' 
09-07 16:00:14.515: I/System.out(1429): waiting for debugger to settle... 
09-07 16:00:14.717: I/System.out(1429): waiting for debugger to settle... 
09-07 16:00:14.846: I/dalvikvm(1429): threadid=3: reacting to signal 3 
09-07 16:00:14.866: I/dalvikvm(1429): Wrote stack traces to '/data/anr/traces.txt' 
09-07 16:00:14.916: I/System.out(1429): debugger has settled (1325) 
09-07 16:00:15.356: I/dalvikvm(1429): threadid=3: reacting to signal 3 
09-07 16:00:15.375: I/dalvikvm(1429): Wrote stack traces to '/data/anr/traces.txt' 
09-07 16:00:15.866: I/dalvikvm(1429): threadid=3: reacting to signal 3 
09-07 16:00:15.886: D/dalvikvm(1429): threadid=1: still suspended after undo (sc=1 dc=1) 
09-07 16:00:15.886: I/dalvikvm(1429): Wrote stack traces to '/data/anr/traces.txt' 
09-07 16:00:16.375: I/dalvikvm(1429): threadid=3: reacting to signal 3 
09-07 16:00:16.385: D/dalvikvm(1429): threadid=1: still suspended after undo (sc=1 dc=1) 
09-07 16:00:16.385: I/dalvikvm(1429): Wrote stack traces to '/data/anr/traces.txt' 
09-07 16:00:16.866: I/dalvikvm(1429): threadid=3: reacting to signal 3 
09-07 16:00:16.876: D/dalvikvm(1429): threadid=1: still suspended after undo (sc=1 dc=1) 
09-07 16:00:16.886: I/dalvikvm(1429): Wrote stack traces to '/data/anr/traces.txt' 
09-07 16:00:17.375: I/dalvikvm(1429): threadid=3: reacting to signal 3 
09-07 16:00:17.385: D/dalvikvm(1429): threadid=1: still suspended after undo (sc=1 dc=1) 
09-07 16:00:17.385: I/dalvikvm(1429): Wrote stack traces to '/data/anr/traces.txt' 
09-07 16:00:17.886: I/dalvikvm(1429): threadid=3: reacting to signal 3 
09-07 16:00:17.896: D/dalvikvm(1429): threadid=1: still suspended after undo (sc=1 dc=1) 
09-07 16:00:17.896: I/dalvikvm(1429): Wrote stack traces to '/data/anr/traces.txt' 
09-07 16:00:18.385: I/dalvikvm(1429): threadid=3: reacting to signal 3 
09-07 16:00:18.395: D/dalvikvm(1429): threadid=1: still suspended after undo (sc=1 dc=1) 
09-07 16:00:18.395: I/dalvikvm(1429): Wrote stack traces to '/data/anr/traces.txt' 
09-07 16:00:18.896: I/dalvikvm(1429): threadid=3: reacting to signal 3 
09-07 16:00:18.906: D/dalvikvm(1429): threadid=1: still suspended after undo (sc=1 dc=1) 
09-07 16:00:18.906: I/dalvikvm(1429): Wrote stack traces to '/data/anr/traces.txt' 
09-07 16:00:19.395: I/dalvikvm(1429): threadid=3: reacting to signal 3 
09-07 16:00:19.405: D/dalvikvm(1429): threadid=1: still suspended after undo (sc=1 dc=1) 
09-07 16:00:19.405: I/dalvikvm(1429): Wrote stack traces to '/data/anr/traces.txt' 
09-07 16:00:19.896: I/dalvikvm(1429): threadid=3: reacting to signal 3 
09-07 16:00:19.916: D/dalvikvm(1429): threadid=1: still suspended after undo (sc=1 dc=1) 
09-07 16:00:19.916: I/dalvikvm(1429): Wrote stack traces to '/data/anr/traces.txt' 
09-07 16:00:20.395: I/dalvikvm(1429): threadid=3: reacting to signal 3 
09-07 16:00:20.415: D/dalvikvm(1429): threadid=1: still suspended after undo (sc=1 dc=1) 
09-07 16:00:20.415: I/dalvikvm(1429): Wrote stack traces to '/data/anr/traces.txt' 
09-07 16:00:20.906: I/dalvikvm(1429): threadid=3: reacting to signal 3 
09-07 16:00:20.926: D/dalvikvm(1429): threadid=1: still suspended after undo (sc=1 dc=1) 
09-07 16:00:20.926: I/dalvikvm(1429): Wrote stack traces to '/data/anr/traces.txt' 
09-07 16:00:21.405: I/dalvikvm(1429): threadid=3: reacting to signal 3 
09-07 16:00:21.425: D/dalvikvm(1429): threadid=1: still suspended after undo (sc=1 dc=1) 
09-07 16:00:21.425: I/dalvikvm(1429): Wrote stack traces to '/data/anr/traces.txt' 
09-07 16:00:21.916: I/dalvikvm(1429): threadid=3: reacting to signal 3 
09-07 16:00:21.926: D/dalvikvm(1429): threadid=1: still suspended after undo (sc=1 dc=1) 
09-07 16:00:21.936: I/dalvikvm(1429): Wrote stack traces to '/data/anr/traces.txt' 
09-07 16:01:15.126: W/ActivityThread(1470): Application com.jumbybay.ferry is waiting for the debugger on port 8100... 
09-07 16:01:15.176: I/System.out(1470): Sending WAIT chunk 
09-07 16:01:15.176: I/dalvikvm(1470): Debugger is active 
09-07 16:01:15.385: I/System.out(1470): Debugger has connected 
09-07 16:01:15.385: I/System.out(1470): waiting for debugger to settle... 
09-07 16:01:15.585: I/System.out(1470): waiting for debugger to settle... 
09-07 16:01:15.787: I/System.out(1470): waiting for debugger to settle... 
09-07 16:01:15.996: I/System.out(1470): waiting for debugger to settle... 
09-07 16:01:16.195: I/System.out(1470): waiting for debugger to settle... 
09-07 16:01:16.399: I/System.out(1470): waiting for debugger to settle... 
09-07 16:01:16.601: I/System.out(1470): waiting for debugger to settle... 
09-07 16:01:16.795: I/System.out(1470): waiting for debugger to settle... 
09-07 16:01:16.996: I/System.out(1470): waiting for debugger to settle... 
09-07 16:01:17.207: I/System.out(1470): waiting for debugger to settle... 
09-07 16:01:17.408: I/System.out(1470): waiting for debugger to settle... 
09-07 16:01:17.610: I/System.out(1470): debugger has settled (1403) 
09-07 16:02:10.908: D/AndroidRuntime(1470): Shutting down VM 
09-07 16:02:10.908: W/dalvikvm(1470): threadid=1: thread exiting with uncaught exception (group=0x409c01f8) 
09-07 16:02:11.056: E/AndroidRuntime(1470): FATAL EXCEPTION: main 
09-07 16:02:11.056: E/AndroidRuntime(1470): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.jumbybay.ferry/com.jumbybay.ferry.FerryMain}: android.content.ActivityNotFoundException: Unable to find explicit activity class {com.jumbybay.ferry/com.jumbybay.activity.LoginActivity}; have you declared this activity in your AndroidManifest.xml? 
09-07 16:02:11.056: E/AndroidRuntime(1470):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1956) 
09-07 16:02:11.056: E/AndroidRuntime(1470):  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1981) 
09-07 16:02:11.056: E/AndroidRuntime(1470):  at android.app.ActivityThread.access$600(ActivityThread.java:123) 
09-07 16:02:11.056: E/AndroidRuntime(1470):  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1147) 
09-07 16:02:11.056: E/AndroidRuntime(1470):  at android.os.Handler.dispatchMessage(Handler.java:99) 
09-07 16:02:11.056: E/AndroidRuntime(1470):  at android.os.Looper.loop(Looper.java:137) 
09-07 16:02:11.056: E/AndroidRuntime(1470):  at android.app.ActivityThread.main(ActivityThread.java:4424) 
09-07 16:02:11.056: E/AndroidRuntime(1470):  at java.lang.reflect.Method.invokeNative(Native Method) 
09-07 16:02:11.056: E/AndroidRuntime(1470):  at java.lang.reflect.Method.invoke(Method.java:511) 
09-07 16:02:11.056: E/AndroidRuntime(1470):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784) 
09-07 16:02:11.056: E/AndroidRuntime(1470):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551) 
09-07 16:02:11.056: E/AndroidRuntime(1470):  at dalvik.system.NativeStart.main(Native Method) 
09-07 16:02:11.056: E/AndroidRuntime(1470): Caused by: android.content.ActivityNotFoundException: Unable to find explicit activity class {com.jumbybay.ferry/com.jumbybay.activity.LoginActivity}; have you declared this activity in your AndroidManifest.xml? 
09-07 16:02:11.056: E/AndroidRuntime(1470):  at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:1508) 
09-07 16:02:11.056: E/AndroidRuntime(1470):  at android.app.Instrumentation.execStartActivity(Instrumentation.java:1384) 
09-07 16:02:11.056: E/AndroidRuntime(1470):  at android.app.Activity.startActivityForResult(Activity.java:3190) 
09-07 16:02:11.056: E/AndroidRuntime(1470):  at android.app.Activity.startActivity(Activity.java:3297) 
09-07 16:02:11.056: E/AndroidRuntime(1470):  at com.jumbybay.activity.CanteenPreference.getUrl(CanteenPreference.java:32) 
09-07 16:02:11.056: E/AndroidRuntime(1470):  at com.jumbybay.ferry.FerryMain.onCreate(FerryMain.java:42) 
09-07 16:02:11.056: E/AndroidRuntime(1470):  at android.app.Activity.performCreate(Activity.java:4465) 
09-07 16:02:11.056: E/AndroidRuntime(1470):  at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1049) 
09-07 16:02:11.056: E/AndroidRuntime(1470):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1920) 
09-07 16:02:11.056: E/AndroidRuntime(1470):  ... 11 more 
09-07 16:02:11.716: I/dalvikvm(1470): threadid=3: reacting to signal 3 
09-07 16:02:11.736: I/dalvikvm(1470): Wrote stack traces to '/data/anr/traces.txt' 
09-07 16:07:11.416: I/Process(1470): Sending signal. PID: 1470 SIG: 9

清單文件主要活動

 <manifest xmlns:android="http://schemas.android.com/apk/res/android" 
     package="com.jumbybay.ferry" 
     android:versionCode="1" 
     android:versionName="1.0" > 

     <uses-sdk 
      android:minSdkVersion="11" 
      android:targetSdkVersion="10" /> 

     <uses-permission android:name="android.permission.INTERNET" /> 
     <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" /> 

     <application 
      android:icon="@drawable/ic_launcher" 
      android:label="@string/app_name" 
      android:theme="@style/AppTheme" > 
      <activity android:name=".FerryMain" > 
       <intent-filter> 
        <action android:name="android.intent.action.MAIN" /> 

        <category android:name="android.intent.category.LAUNCHER" /> 
       </intent-filter> 
      </activity> 

      <activity android:name=".ferryBlur" > 
      </activity> 
      <activity android:name=".PassengerList" > 
      </activity> 
      <activity android:name=".com.jumbybay.activity.LoginActivity" > 
      </activity> 
      <activity android:name=".TripIn" > 
      </activity> 
     </application> 

    </manifest>

清單文件庫

<manifest xmlns:android="http://schemas.android.com/apk/res/android" 
    package="com.jumbybay.activity" 
    android:versionCode="1" 
    android:versionName="1.0" > 

    <uses-sdk 
     android:minSdkVersion="14" 
     android:targetSdkVersion="15" /> 

    <uses-permission android:name="android.permission.NFC" /> 
     <uses-permission android:name="android.permission.INTERNET" /> 

    <uses-feature android:name="android.hardware.nfc" /> 

    <application> 
     <activity 
      android:name=".LoginActivity" 
      android:label="Jumbybay : Canteen" > 
     </activity> 
     <activity android:name=".NfcReaderActivity" > 
      <intent-filter> 
       <action android:name="android.nfc.action.TAG_DISCOVERED" /> 

       <category android:name="android.intent.category.DEFAULT" /> 
      </intent-filter> 
     </activity> 
    </application> 

</manifest>

來源

2012-09-07 Android Fanatic

請向我們展示兩個清單（至少是活動部分） – WarrenFaith

@WarrenFaith請參閱清單文件 –

嘗試刪除應用清單

更改.

<activity android:name=".com.jumbybay.activity.LoginActivity" >

到

<activity android:name="com.jumbybay.activity.LoginActivity" >

.表示這是您的Manifest包中的一部分，在您的情況是錯誤的。

來源

2012-09-07 12:04:03 WarrenFaith

我預計問題與領先有關。在您指定登錄活動

.com.jumbybay.activity.LoginActivity

嘗試改變這com.jumbybay.activity.LoginActivity

您還需要確保在相關活動上安裝設備

來源

2012-09-07 12:06:01 gheese

如何從其他圖書館活動調用一個圖書館活動？

回答

相關問題