Force Closing App

-1

私は突然私のアプリを強制的に私に閉め続ける理由はわかりません。以前はうまくいきました。Force Closing App

ご覧ください。

public class AgentPortalActivity extends Activity implements OnClickListener { 

String username; 
String password; 
Button login; 
EditText uid; 
EditText pwd; 
CheckBox chkRememberPassword; 
SharedPreferences loginPreferences; 
SharedPreferences.Editor loginPrefsEditor; 
Boolean saveLogin; 

@Override 
public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.main); 

    // User Id and Password Text Fields 
    uid = (EditText) findViewById(R.id.uid); 
    pwd = (EditText) findViewById(R.id.pw); 

    // Converts the Text in the User Id and Password field to Strings 
    username = uid.getText().toString(); 
    password = pwd.getText().toString(); 

    // Login Button On Click Listener 
    login = (Button) findViewById(R.id.login); 
    login.setOnClickListener(this); 

    // Remember Password Save Properties 
    chkRememberPassword = (CheckBox) findViewById(R.id.chkRememberPassword); 
    loginPreferences = getSharedPreferences("loginPrefs", MODE_PRIVATE); 
    loginPrefsEditor = loginPreferences.edit(); 

    saveLogin = loginPreferences.getBoolean("saveLogin", false); 

    if (saveLogin == true) { 
     uid.setText(loginPreferences.getString(username, "")); 
     pwd.setText(loginPreferences.getString(password, "")); 
     chkRememberPassword.setChecked(true); 
     // End 

    } 
} 

public void onClick(View view) { 
    if (view == login) { 

     // Loading Dialog Box 
     final ProgressDialog dialog = new ProgressDialog(
       AgentPortalActivity.this); 
     dialog.setProgressStyle(ProgressDialog.STYLE_SPINNER); 
     dialog.setMessage("Logging In..."); 
     dialog.show(); 

     Thread t = new Thread(new Runnable() { 
      public void run() { 
       while (dialog.getProgress() < dialog.getMax()) { 

        try { 

         Thread.sleep(50); 
        } catch (Exception e) {/* no-op */ 
        } 
       } 
       dialog.dismiss(); 
      } 
     }); 
     t.start(); 
     // End Of Loading Dialog Box 

     // Hides Soft Keyboard 
     InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE); 
     imm.hideSoftInputFromWindow(uid.getWindowToken(), 0); 
     imm.hideSoftInputFromWindow(pwd.getWindowToken(), 0); 

     // Button OnClick Vibrating Service 
     Vibrator vib = (Vibrator) getSystemService(Context.VIBRATOR_SERVICE); 
     vib.vibrate(50); 

     // Send username and password strings into screen1 class 
     Intent i = new Intent(this, screen1.class); 
     i.putExtra("uid", username); 
     i.putExtra("pwd", password); 
     startActivity(i); 
     // End 

     if (chkRememberPassword.isChecked()) { 
      loginPrefsEditor.putBoolean("saveLogin", true); 
      loginPrefsEditor.putString(username, username); 
      loginPrefsEditor.putString(password, password); 
      loginPrefsEditor.commit(); 
     } else { 
      loginPrefsEditor.clear(); 
      loginPrefsEditor.commit(); 
     } 

     doSomethingElse(); 
    } 
} 

public void doSomethingElse() { 

    overridePendingTransition(R.anim.fadein, R.anim.fadeout); 

}

}

相続人は私の第二のクラス

public class screen1 extends Activity implements View.OnClickListener { 

String username; 
String password; 

// EditTexts 
final EditText milein = (EditText) findViewById(R.id.milein); 
final EditText zipin = (EditText) findViewById(R.id.zipin); 
final EditText mileout = (EditText) findViewById(R.id.mileout); 
final EditText zipout = (EditText) findViewById(R.id.zipout); 
final EditText feed = (EditText) findViewById(R.id.feed); 

// TextViews 
final TextView dispatch = (TextView) findViewById(R.id.dispatch); 
final TextView dispatchnum = (TextView) findViewById(R.id.dispatchnum); 
final TextView csr = (TextView) findViewById(R.id.csr); 
final TextView csrnum = (TextView) findViewById(R.id.csrnum); 
final TextView it = (TextView) findViewById(R.id.it); 
final TextView itnum = (TextView) findViewById(R.id.itnum); 
final TextView thoughts = (TextView) findViewById(R.id.thoughts); 
final TextView information = (TextView) findViewById(R.id.information); 

//ToggleButtons 
final ToggleButton checkinbutton = (ToggleButton) findViewById(R.id.checkinbutton); 

// Buttons 
final Button submit = (Button) findViewById(R.id.submit); 
final Button send = (Button) findViewById(R.id.send); 


public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.screen1); 

    // Calls String from AgentPortalActivity class to pass through to 
    // screen1 class 
    Intent i = getIntent(); 
    username = i.getExtras().getString("uid"); 
    password = i.getExtras().getString("pwd"); 
    // End 

    // Passes username and password strings and inserts into URL for login 
    // and pwd 
    JSONObject json = JSONfunction 
      .getJSONfromURL("http://whatever.com/api/?type=json&uid=" 
        + (username) + "&pwd=" + (password)); 
    // End 

    try { 

     // boolean suspended = json.getBoolean("suspended"); 
     String firstName = json.getString("firstName"); 
     String lastName = json.getString("lastName"); 
     // int checkdin = json.getInt("checkedin"); 
     // int checkindatetime = json.getInt("checkindatetime"); 

     // Get Json object address 
     JSONObject address = json.getJSONObject("address"); 
     String streetAddress = address.getString("streetAddress"); 
     String city = address.getString("city"); 
     String state = address.getString("state"); 
     String postalCode = address.getString("postalCode"); 
     // End 

     // Get PhoneNumber Array 
     JSONArray phoneNumbers = json.getJSONArray("phoneNumber"); 
     // String type = phoneNumbers.getJSONObject(0).getString("type"); 
     String number = phoneNumbers.getJSONObject(0).getString("number"); 
     // End 

     information.setText("Hello," + " " + (firstName) + " " + (lastName) 
       + "!" + " " + "Your Home Number is" + " " + (number) + " " 
       + "Your Address is" + " " + (streetAddress) + " " + (city) 
       + " " + (state) + " " + (postalCode)); 

    } catch (JSONException e1) { 
     // TODO Auto-generated catch block 
     e1.printStackTrace(); 
    } 

    /** Submit Button Invisible Child Properties */ 
    submit.setOnClickListener(new View.OnClickListener() { 
     public void onClick(View v) { 

      // Button OnClick Vibrating Service 
      Vibrator vib = (Vibrator) getSystemService(Context.VIBRATOR_SERVICE); 
      vib.vibrate(50); 

      // Submit Mile-IN Mile-Out Button 
      if (submit.isPressed()) { 
       milein.setVisibility(View.GONE); 
       zipin.setVisibility(View.GONE); 
       mileout.setVisibility(View.GONE); 
       zipout.setVisibility(View.GONE); 
       submit.setVisibility(View.GONE); 
       dispatch.setVisibility(View.GONE); 
       dispatchnum.setVisibility(View.GONE); 
       csr.setVisibility(View.GONE); 
       csrnum.setVisibility(View.GONE); 
       it.setVisibility(View.GONE); 
       itnum.setVisibility(View.GONE); 
       thoughts.setVisibility(View.GONE); 
       feed.setVisibility(View.GONE); 
       send.setVisibility(View.GONE); 
       // End 

       // Button OnClick Vibrating Service 
       Vibrator vib1 = (Vibrator) getSystemService(Context.VIBRATOR_SERVICE); 
       vib1.vibrate(50); 
       // End 

       // Toast "Please Wait" Upon Clicking Submit Button 
       Toast.makeText(getBaseContext(), "Please Wait...", 
         Toast.LENGTH_SHORT).show(); 
       // End 

      } 
     } 
    }); 

    // Boolean for Check-In Button Sharedpreferences 
    final SharedPreferences preferences = getPreferences(MODE_PRIVATE); 
    boolean tgpref = preferences.getBoolean("tgpref", false); 
    checkinbutton.setChecked(tgpref); 
    // End 

    // ToggleButton Check-IN 
    checkinbutton.setOnClickListener(new View.OnClickListener() { 

     @Override 
     public void onClick(View v) { 

      // Button OnClick Vibrating Service 
      Vibrator vib = (Vibrator) getSystemService(Context.VIBRATOR_SERVICE); 
      vib.vibrate(50); 
      // End 

      // Only Displays Mile-in Zip-in and Submit Button 
      if (checkinbutton.isChecked()) { 
       milein.setVisibility(View.VISIBLE); 
       zipin.setVisibility(View.VISIBLE); 
       submit.setVisibility(View.VISIBLE); 
       mileout.setVisibility(View.GONE); 
       zipout.setVisibility(View.GONE); 
       dispatch.setVisibility(View.GONE); 
       dispatchnum.setVisibility(View.GONE); 
       csr.setVisibility(View.GONE); 
       csrnum.setVisibility(View.GONE); 
       it.setVisibility(View.GONE); 
       itnum.setVisibility(View.GONE); 
       thoughts.setVisibility(View.GONE); 
       feed.setVisibility(View.GONE); 
       send.setVisibility(View.GONE); 
       // End 

       // Button OnClick Vibrating Service 
       Vibrator vib1 = (Vibrator) getSystemService(Context.VIBRATOR_SERVICE); 
       vib1.vibrate(50); 
       // End 

       Toast.makeText(getBaseContext(), "Checking In...", 
         Toast.LENGTH_SHORT).show(); 

       // Boolean Preferences for Checkinbutton ToggleButton 
       // Remembers Toggle State Checked 
       SharedPreferences.Editor editor = preferences.edit(); 
       final SharedPreferences preferences = getPreferences(MODE_PRIVATE); 
       boolean tgpref = preferences.getBoolean("tgpref", false); 
       checkinbutton.setChecked(tgpref); 
       editor.putBoolean("tgpref", true); 
       editor.commit(); 
       // End 

      } else { 

       mileout.setVisibility(View.VISIBLE); 
       zipout.setVisibility(View.VISIBLE); 
       submit.setVisibility(View.VISIBLE); 
       milein.setVisibility(View.GONE); 
       zipin.setVisibility(View.GONE); 
       dispatch.setVisibility(View.GONE); 
       dispatchnum.setVisibility(View.GONE); 
       csr.setVisibility(View.GONE); 
       csrnum.setVisibility(View.GONE); 
       it.setVisibility(View.GONE); 
       itnum.setVisibility(View.GONE); 
       thoughts.setVisibility(View.GONE); 
       feed.setVisibility(View.GONE); 
       send.setVisibility(View.GONE); 

       // Boolean Preferences for Checkinbutton ToggleButton 
       // Remembers Toggle State Un-Checked 
       SharedPreferences.Editor editor = preferences.edit(); 
       editor.putBoolean("tgpref", false); 
       editor.commit(); 
       // End 

       // AlertDialog Meal-Periods Button Configurations 
       final AlertDialog alertDialog = new AlertDialog.Builder(
         screen1.this).create(); 
       alertDialog 
         .setMessage("I hereby verify that I have received all my 10 minute rest periods and 30 minute meal breaks today."); 
       alertDialog.setButton("Agree", 
         new DialogInterface.OnClickListener() { 
          public void onClick(DialogInterface dialog, 
            int which) { 
           Toast.makeText(getBaseContext(), 
             "Checking Out...", 
             Toast.LENGTH_SHORT).show(); 
          } 
         }); 
       alertDialog.setButton2("Cancel", 
         new DialogInterface.OnClickListener() { 
          public void onClick(DialogInterface dialog, 
            int which) { 
           Toast.makeText(
             getBaseContext(), 
             "Please contact Ro*** Mu*** (Human Resource) to report any discrepancies", 
             Toast.LENGTH_LONG).show(); 
           checkinbutton.setChecked(true); 
           milein.setVisibility(View.GONE); 
           zipin.setVisibility(View.GONE); 
           mileout.setVisibility(View.GONE); 
           zipout.setVisibility(View.GONE); 
           submit.setVisibility(View.GONE); 
           dispatch.setVisibility(View.GONE); 
           dispatchnum.setVisibility(View.GONE); 
           csr.setVisibility(View.GONE); 
           csrnum.setVisibility(View.GONE); 
           it.setVisibility(View.GONE); 
           itnum.setVisibility(View.GONE); 
           thoughts.setVisibility(View.GONE); 
           feed.setVisibility(View.GONE); 
           send.setVisibility(View.GONE); 
           SharedPreferences.Editor editor = preferences 
             .edit(); 
           editor.putBoolean("tgpref", true); 
           editor.commit(); 
          } 
         }); 
       alertDialog.show(); 
       // End 

      } 
     }; 
    }); 

    Button statusbutton = (Button) findViewById(R.id.statusbutton); 
    statusbutton.setOnClickListener(new View.OnClickListener() { 
     public void onClick(View v) { 

      // Button OnClick Vibrating Service 
      Vibrator vib = (Vibrator) getSystemService(Context.VIBRATOR_SERVICE); 
      vib.vibrate(50); 
      // End 

      /** Fading Transition Effect */ 
      overridePendingTransition(R.anim.fadein, R.anim.fadeout); 

      /** Status Bar */ 
      final ProgressDialog dialog = new ProgressDialog(screen1.this); 
      dialog.setProgressStyle(ProgressDialog.STYLE_SPINNER); 
      dialog.setMessage("Getting Status Please Wait..."); 
      dialog.show(); 

      Thread t = new Thread(new Runnable() { 
       public void run() { 
        while (dialog.getProgress() < dialog.getMax()) { 
         try { 

          // Send username and password strings into 
          // screen1 class 
          Intent i = new Intent(screen1.this, 
            statuspage.class); 
          i.putExtra("uid", username); 
          i.putExtra("pwd", password); 
          startActivity(i); 
          // End 

          Thread.sleep(50); 
         } catch (Exception e) {/* no-op */ 
         } 
        } 
        dialog.dismiss(); 
       } 
      }); 
      t.start(); 
      /** End Of Status Bar */ 

     } 

    }); 

    Button jobs = (Button) findViewById(R.id.jobs); 
    jobs.setOnClickListener(new OnClickListener() { 
     @Override 
     public void onClick(View v) { 

      // Button OnClick Vibrating Service 
      Vibrator vib = (Vibrator) getSystemService(Context.VIBRATOR_SERVICE); 
      vib.vibrate(50); 

      startActivity(new Intent(screen1.this, Jobs.class)); 
      screen1.this.finish(); 

      /** Fading Transition Effect */ 
      overridePendingTransition(R.anim.fadein, R.anim.fadeout); 

      /** Status Bar */ 
      final ProgressDialog dialog2 = new ProgressDialog(screen1.this); 
      dialog2.setProgressStyle(ProgressDialog.STYLE_SPINNER); 
      dialog2.setMessage("Loading Jobs Please Wait..."); 
      dialog2.show(); 

      Thread t1 = new Thread(new Runnable() { 
       public void run() { 
        while (dialog2.getProgress() < dialog2.getMax()) { 
         try { 
          Thread.sleep(50); 
         } catch (Exception e) {/* no-op */ 
         } 
        } 
        dialog2.dismiss(); 
       } 
      }); 
      t1.start(); 
      /** End Of Status Bar */ 
     } 

    }); 

    Button contact = (Button) findViewById(R.id.contact); 
    contact.setOnClickListener(new OnClickListener() { 
     @Override 
     public void onClick(View arg0) { 

      // Button OnClick Vibrating Service 
      Vibrator vib = (Vibrator) getSystemService(Context.VIBRATOR_SERVICE); 
      vib.vibrate(50); 

      dispatch.setVisibility(View.VISIBLE); 
      dispatchnum.setVisibility(View.VISIBLE); 
      csr.setVisibility(View.VISIBLE); 
      csrnum.setVisibility(View.VISIBLE); 
      it.setVisibility(View.VISIBLE); 
      itnum.setVisibility(View.VISIBLE); 
      milein.setVisibility(View.GONE); 
      zipin.setVisibility(View.GONE); 
      mileout.setVisibility(View.GONE); 
      zipout.setVisibility(View.GONE); 
      submit.setVisibility(View.GONE); 
      thoughts.setVisibility(View.GONE); 
      feed.setVisibility(View.GONE); 
      send.setVisibility(View.GONE); 

     } 
    }); 

    Button feedback = (Button) findViewById(R.id.feedback); 
    feedback.setOnClickListener(new OnClickListener() { 
     @Override 
     public void onClick(View v) { 

      // Button OnClick Vibrating Service 
      Vibrator vib = (Vibrator) getSystemService(Context.VIBRATOR_SERVICE); 
      vib.vibrate(50); 

      thoughts.setVisibility(View.VISIBLE); 
      feed.setVisibility(View.VISIBLE); 
      send.setVisibility(View.VISIBLE); 
      milein.setVisibility(View.GONE); 
      zipin.setVisibility(View.GONE); 
      mileout.setVisibility(View.GONE); 
      zipout.setVisibility(View.GONE); 
      submit.setVisibility(View.GONE); 
      dispatch.setVisibility(View.GONE); 
      dispatchnum.setVisibility(View.GONE); 
      csr.setVisibility(View.GONE); 
      csrnum.setVisibility(View.GONE); 
      it.setVisibility(View.GONE); 
      itnum.setVisibility(View.GONE); 
     } 
    }); 
} 

@Override 
public void onBackPressed() { 

    // Button OnClick Vibrating Service 
    Vibrator vib = (Vibrator) getSystemService(Context.VIBRATOR_SERVICE); 
    vib.vibrate(50); 

    startActivity(new Intent(screen1.this, AgentPortalActivity.class)); 
    screen1.this.finish(); 

    /** Fading Transition Effect */ 
    overridePendingTransition(R.anim.fadein, R.anim.fadeout); 
    return; 

} 

@Override 
public void onClick(View v) { 

}

}

、ここでは私のLogCat

03-22 09:44:56.031: I/Process(21770): Sending signal. PID: 21770 SIG: 9 
03-22 09:44:57.679: D/dalvikvm(21798): GC_EXTERNAL_ALLOC freed 58K, 44% free 3036K/5379K, external 1596K/2108K, paused 35ms 
03-22 09:44:57.788: D/dalvikvm(21798): GC_EXTERNAL_ALLOC freed 11K, 44% free 3056K/5379K, external 3498K/3748K, paused 36ms 
03-22 09:44:57.804: D/AndroidRuntime(21798): Shutting down VM 
03-22 09:44:57.804: W/dalvikvm(21798): threadid=1: thread exiting with uncaught exception (group=0x40015578) 
03-22 09:44:57.812: E/AndroidRuntime(21798): FATAL EXCEPTION: main 
03-22 09:44:57.812: E/AndroidRuntime(21798): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.jetdelivery.mobile/com.jetdelivery.mobile.AgentPortalActivity}: java.lang.NullPointerException 
03-22 09:44:57.812: E/AndroidRuntime(21798): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1651) 
03-22 09:44:57.812: E/AndroidRuntime(21798): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1667) 
03-22 09:44:57.812: E/AndroidRuntime(21798): at android.app.ActivityThread.access$1500(ActivityThread.java:117) 
03-22 09:44:57.812: E/AndroidRuntime(21798): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:935) 
03-22 09:44:57.812: E/AndroidRuntime(21798): at android.os.Handler.dispatchMessage(Handler.java:99) 
03-22 09:44:57.812: E/AndroidRuntime(21798): at android.os.Looper.loop(Looper.java:130) 
03-22 09:44:57.812: E/AndroidRuntime(21798): at android.app.ActivityThread.main(ActivityThread.java:3687) 
03-22 09:44:57.812: E/AndroidRuntime(21798): at java.lang.reflect.Method.invokeNative(Native Method) 
03-22 09:44:57.812: E/AndroidRuntime(21798): at java.lang.reflect.Method.invoke(Method.java:507) 
03-22 09:44:57.812: E/AndroidRuntime(21798): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:842) 
03-22 09:44:57.812: E/AndroidRuntime(21798): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:600) 
03-22 09:44:57.812: E/AndroidRuntime(21798): at dalvik.system.NativeStart.main(Native Method) 
03-22 09:44:57.812: E/AndroidRuntime(21798): Caused by: java.lang.NullPointerException 
03-22 09:44:57.812: E/AndroidRuntime(21798): at com.jetdelivery.mobile.AgentPortalActivity.onCreate(AgentPortalActivity.java:40) 
03-22 09:44:57.812: E/AndroidRuntime(21798): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047) 
03-22 09:44:57.812: E/AndroidRuntime(21798): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1615) 
03-22 09:44:57.812: E/AndroidRuntime(21798): ... 11 more 
03-22 09:45:04.652: I/Process(21798): Sending signal. PID: 21798 SIG: 9

出典

2012-03-22 John Nguyen

nullを持つオブジェクト（NullPointerException）があります。使用しているオブジェクトがいくつかあります。 AgentPortalActivity.javaの40行目には何がありますか？ – kabuko

デバッグモードで実行し、onCreateを実行して何がスローされたかを確認するNull Pointer Exception ... – Calvin

申し訳ありませんが、どういう意味ですか@行40 –

// Converts the Text in the User Id and Password field to Strings 
    username = uid.getText().toString(); 
    password = pwd.getText().toString();

These linesはあなたにNullPointerExceptonを与えています。なぜなら、何も含まれていないときに、これらの編集テキストからOnCreate（）自体のテキストを取得しようとしているからです。ユーザーはonResume（）までビューを表示したり操作したりすることができません。この2行と他のすべてのコードをオンにする必要があります。このコードを試してください。

public class AgentPortalActivity extends Activity implements OnClickListener { 

String username; 
String password; 
Button login; 
EditText uid; 
EditText pwd; 
CheckBox chkRememberPassword; 
SharedPreferences loginPreferences; 
SharedPreferences.Editor loginPrefsEditor; 
Boolean saveLogin; 

@Override 
public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.main); 

    // User Id and Password Text Fields 
    uid = (EditText) findViewById(R.id.uid); 
    pwd = (EditText) findViewById(R.id.pw); 



    // Login Button On Click Listener 
    login = (Button) findViewById(R.id.login); 
    login.setOnClickListener(this); 

    // Remember Password Save Properties 
    chkRememberPassword = (CheckBox) findViewById(R.id.chkRememberPassword); 
    loginPreferences = getSharedPreferences("loginPrefs", MODE_PRIVATE); 
    loginPrefsEditor = loginPreferences.edit(); 

    saveLogin = loginPreferences.getBoolean("saveLogin", false); 

    if (saveLogin == true) { 
     uid.setText(loginPreferences.getString(username, "")); 
     pwd.setText(loginPreferences.getString(password, "")); 
     chkRememberPassword.setChecked(true); 
     // End 

    } 
} 

public void onClick(View view) { 
    if (view == login) { 


     // Converts the Text in the User Id and Password field to Strings 
     username = uid.getText().toString(); 
     password = pwd.getText().toString(); 

     // Loading Dialog Box 
     final ProgressDialog dialog = new ProgressDialog(
       AgentPortalActivity.this); 
     dialog.setProgressStyle(ProgressDialog.STYLE_SPINNER); 
     dialog.setMessage("Logging In..."); 
     dialog.show(); 

     Thread t = new Thread(new Runnable() { 
      public void run() { 
       while (dialog.getProgress() < dialog.getMax()) { 

        try { 

         Thread.sleep(50); 
        } catch (Exception e) {/* no-op */ 
        } 
       } 
       dialog.dismiss(); 
      } 
     }); 
     t.start(); 
     // End Of Loading Dialog Box 

     // Hides Soft Keyboard 
     InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE); 
     imm.hideSoftInputFromWindow(uid.getWindowToken(), 0); 
     imm.hideSoftInputFromWindow(pwd.getWindowToken(), 0); 

     // Button OnClick Vibrating Service 
     Vibrator vib = (Vibrator) getSystemService(Context.VIBRATOR_SERVICE); 
     vib.vibrate(50); 

     // Send username and password strings into screen1 class 
     Intent i = new Intent(this, screen1.class); 
     i.putExtra("uid", username); 
     i.putExtra("pwd", password); 
     startActivity(i); 
     // End 

     if (chkRememberPassword.isChecked()) { 
      loginPrefsEditor.putBoolean("saveLogin", true); 
      loginPrefsEditor.putString(username, username); 
      loginPrefsEditor.putString(password, password); 
      loginPrefsEditor.commit(); 
     } else { 
      loginPrefsEditor.clear(); 
      loginPrefsEditor.commit(); 
     } 

     doSomethingElse(); 
    } 
} 

public void doSomethingElse() { 

    overridePendingTransition(R.anim.fadein, R.anim.fadeout); 

}

出典

2012-03-22 17:11:20 Akhil

ありがとうAkhill！私はメインクラスを再び稼働させました。なぜ今、私の第2クラス（screen1）が今や動いているのかを知る必要があります。 –

Akhill、なぜ私のセカンドクラスもクラッシュするのを理解するのに役立つでしょうか？過去1時間にそれを理解しようとしていて、私は困惑しています。 –

あなたはどんな問題に直面していますか？ – Akhil

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