如何解决FATAL EXCEPTION: main
E/AndroidRuntime( 1823): FATAL EXCEPTION: mainE/AndroidRuntime( 1823): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.android.settings/com.android.settings.MultiSimSettings}: java.lang.NullPointerException
E/AndroidRuntime( 1823): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2185)
E/AndroidRuntime( 1823): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2210)
E/AndroidRuntime( 1823): at android.app.ActivityThread.access$600(ActivityThread.java:142)
E/AndroidRuntime( 1823): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1208)
E/AndroidRuntime( 1823): at android.os.Handler.dispatchMessage(Handler.java:99)
E/AndroidRuntime( 1823): at android.os.Looper.loop(Looper.java:137)
E/AndroidRuntime( 1823): at android.app.ActivityThread.main(ActivityThread.java:4931)
E/AndroidRuntime( 1823): at java.lang.reflect.Method.invokeNative(Native Method)
E/AndroidRuntime( 1823): at java.lang.reflect.Method.invoke(Method.java:511)
E/AndroidRuntime( 1823): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:791)
E/AndroidRuntime( 1823): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:558)
E/AndroidRuntime( 1823): at dalvik.system.NativeStart.main(Native Method)
E/AndroidRuntime( 1823): Caused by: java.lang.NullPointerException
E/AndroidRuntime( 1823): at com.android.settings.MultiSimSettings.onCreate(MultiSimSettings.java:107)
E/AndroidRuntime( 1823): at android.app.Activity.performCreate(Activity.java:5008)
E/AndroidRuntime( 1823): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1079)
E/AndroidRuntime( 1823): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2139)
E/AndroidRuntime( 1823): ... 11 more
--------------------编程问答-------------------- manifest 中是否添加了 你要打开MultiSimSettings 这个？ --------------------编程问答-------------------- protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
addPreferencesFromResource(R.xml.multi_sim_settings);
mVoice = (ListPreference) findPreference(KEY_VOICE);
mVoice.setOnPreferenceChangeListener(this);
mData = (ListPreference) findPreference(KEY_DATA);
mData.setOnPreferenceChangeListener(this);
mSms = (ListPreference) findPreference(KEY_SMS);
mSms.setOnPreferenceChangeListener(this);
mConfigSub = (PreferenceScreen) findPreference(KEY_CONFIG_SUB);
mConfigSub.getIntent().putExtra(CONFIG_SUB, true);
if (isAirplaneModeOn()) {
Log.d(TAG, "Airplane mode is ON, grayout the config subscription menu!!!");
mConfigSub.setEnabled(false);
}
for (int subId = 0; subId < SubscriptionManager.NUM_SUBSCRIPTIONS; subId++) {
subManager.registerForSubscriptionActivated(subId,
mHandler, EVENT_SUBSCRIPTION_ACTIVATED, null);
subManager.registerForSubscriptionDeactivated(subId,
mHandler, EVENT_SUBSCRIPTION_DEACTIVATED, null);
}
}
@Override
protected void onResume() {
super.onResume();
int count = subManager.getActiveSubscriptionsCount();
if (count == SUBSCRIPTION_DUAL_STANDBY) {
mVoice.setEntries(R.array.multi_sim_entries_voice);
mVoice.setEntryValues(R.array.multi_sim_values_voice);
} else {
mVoice.setEntries(R.array.multi_sim_entries_voice_without_prompt);
mVoice.setEntryValues(R.array.multi_sim_values_voice_without_prompt);
}
mIsForeground = true;
updateState();
}
@Override --------------------编程问答-------------------- MultiSimSettings.java:107
空指针 --------------------编程问答--------------------
添加了 --------------------编程问答--------------------
要怎么解决 --------------------编程问答--------------------
这是manifest
<!-- Multi Sim (Subscription) Settings -->
<activity android:name="MultiSimSettings"
android:label="@string/multi_sim_settings_title"
android:process="com.android.phone"
android:configChanges="mcc|mnc"
android:clearTaskOnLaunch="true">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<action android:name="com.android.settings.MULTI_SIM_SETTINGS" />
<category android:name="android.intent.category.DEFAULT" />
<category android:name="android.intent.category.VOICE_LAUNCH" />
<category android:name="com.android.settings.SHORTCUT" />
</intent-filter>
</activity> --------------------编程问答--------------------
具体是哪一行来着 --------------------编程问答--------------------
subManager.registerForSubscriptionActivated(subId, //这是107行 --------------------编程问答-------------------- 求大神解决啊 --------------------编程问答--------------------
subManager有初始化么
补充：移动开发 , Android
