프로필 페이지를 만듭니다. 이 페이지는 로그인 페이지에서 First_Name, Last_Name 등과 같은 필수 필드가 될 모든 데이터를 가져옵니다. 로그인 활동에서 인 텐트를 보내고 있지만 프로필 활동에서 NullPointerException을 발생시킵니다.Android Bundle.getString Null 포인터 예외 발생
이Bundle Basket = new Bundle();
Basket.putString("First_Name", first_name);
Basket.putString("Last_Name", last_name);
Basket.putString("Email", emails);
Basket.putString("Password",password);
Basket.putInt("Id", id);
Basket.putInt("Role", role);
Basket.putInt("status", status);
Basket.putInt("Active", active);
Intent dashboard = new Intent(MainActivity.this,Dashboard.class);
dashboard.putExtras(Basket);
startActivity(dashboard);
Profile.java에 대한 코드
public void onCreate(Bundle SavedInstance){
super.onCreate(SavedInstance);
setContentView(R.layout.profile);
fn = (TextView) findViewById (R.id.f_p_n_1);
ln = (TextView) findViewById (R.id.l_p_n_1);
em = (TextView) findViewById (R.id.e_p_n_1);
b1 = (ImageButton) findViewById (R.id.home);
b2 = (ImageButton) findViewById (R.id.setting);
b3 = (ImageButton) findViewById (R.id.feedback);
Bundle extras = this.getIntent().getExtras();
f_n = extras.getString("First_Name");
System.out.println(f_n);
하고 내 manifest.xml 파일은
<activity
android:name="com.yousaf.naveed.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="com.yousaf.naveed.register"></activity>
<activity android:name="com.yousaf.naveed.Dashboard">
<intent-filter >
<action android:name="android.intent.action.VIEW"/>
<action android:name="android.intent.action.GET_CONTENT"/>
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
<activity android:name="com.yousaf.naveed.Trip"></activity>
<activity android:name="com.yousaf.naveed.Request"></activity>
<activity android:name="com.yousaf.naveed.Profile">
<intent-filter >
<action android:name="android.intent.action.VIEW"/>
<action android:name="android.intent.action.GET_CONTENT"/>
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
입니다 :
는 (주요 활동) 활동에서 로그인에 대한 코드
입니다
어디에 문제가 있는지 잘 모르겠습니다. 도와 줘서 고마워. 완전한 로그 캣은
10-29 03:58:17.313: E/AndroidRuntime(23257): FATAL EXCEPTION: main
10-29 03:58:17.313: E/AndroidRuntime(23257): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.yousaf.naveed/com.yousaf.naveed.Dashboard}: java.lang.RuntimeException: Unable to start activity ComponentInfo{com.yousaf.naveed/com.yousaf.naveed.Profile}: java.lang.NullPointerException
10-29 03:58:17.313: E/AndroidRuntime(23257): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1872)
10-29 03:58:17.313: E/AndroidRuntime(23257): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1893)
10-29 03:58:17.313: E/AndroidRuntime(23257): at android.app.ActivityThread.access$1500(ActivityThread.java:135)
10-29 03:58:17.313: E/AndroidRuntime(23257): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1054)
10-29 03:58:17.313: E/AndroidRuntime(23257): at android.os.Handler.dispatchMessage(Handler.java:99)
10-29 03:58:17.313: E/AndroidRuntime(23257): at android.os.Looper.loop(Looper.java:150)
10-29 03:58:17.313: E/AndroidRuntime(23257): at android.app.ActivityThread.main(ActivityThread.java:4389)
10-29 03:58:17.313: E/AndroidRuntime(23257): at java.lang.reflect.Method.invokeNative(Native Method)
10-29 03:58:17.313: E/AndroidRuntime(23257): at java.lang.reflect.Method.invoke(Method.java:507)
10-29 03:58:17.313: E/AndroidRuntime(23257): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:849)
10-29 03:58:17.313: E/AndroidRuntime(23257): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:607)
10-29 03:58:17.313: E/AndroidRuntime(23257): at dalvik.system.NativeStart.main(Native Method)
10-29 03:58:17.313: E/AndroidRuntime(23257): Caused by: java.lang.RuntimeException: Unable to start activity ComponentInfo{com.yousaf.naveed/com.yousaf.naveed.Profile}: java.lang.NullPointerException
10-29 03:58:17.313: E/AndroidRuntime(23257): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1872)
10-29 03:58:17.313: E/AndroidRuntime(23257): at android.app.ActivityThread.startActivityNow(ActivityThread.java:1692)
10-29 03:58:17.313: E/AndroidRuntime(23257): at android.app.LocalActivityManager.moveToState(LocalActivityManager.java:127)
10-29 03:58:17.313: E/AndroidRuntime(23257): at android.app.LocalActivityManager.startActivity(LocalActivityManager.java:339)
10-29 03:58:17.313: E/AndroidRuntime(23257): at android.widget.TabHost$IntentContentStrategy.getContentView(TabHost.java:656)
10-29 03:58:17.313: E/AndroidRuntime(23257): at android.widget.TabHost.setCurrentTab(TabHost.java:326)
10-29 03:58:17.313: E/AndroidRuntime(23257): at android.widget.TabHost.addTab(TabHost.java:216)
10-29 03:58:17.313: E/AndroidRuntime(23257): at com.yousaf.naveed.Dashboard.onCreate(Dashboard.java:37)
10-29 03:58:17.313: E/AndroidRuntime(23257): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1072)
10-29 03:58:17.313: E/AndroidRuntime(23257): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1836)
10-29 03:58:17.313: E/AndroidRuntime(23257): ... 11 more
10-29 03:58:17.313: E/AndroidRuntime(23257): Caused by: java.lang.NullPointerException
10-29 03:58:17.313: E/AndroidRuntime(23257): at com.yousaf.naveed.Profile.onCreate(Profile.java:26)
10-29 03:58:17.313: E/AndroidRuntime(23257): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1072)
10-29 03:58:17.313: E/AndroidRuntime(23257): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1836)
레이아웃 및 전체 LogCat을 게시하십시오. 그리고 참조하고있는 항목이'R.layout.profile'에 있는지 확인하고 정확한 ID를 가지고 있는지 확인하십시오. – hichris123