Java 如何知道片段何时完成加载?
我对android非常陌生,我有一个问题: 我有一个包含表格的应用程序 如果存储了一些呼叫,我想更改表 现在我在onResume上有一个调用,但是它是在表完全加载之前调用的,所以我没有访问表元素的权限 当我看到Resume上的文档是片段激活之前调用的最后一步时,我不知道在哪里调用我的方法来处理调用 这是ListFragment.java中的代码:Java 如何知道片段何时完成加载?,java,android,android-fragments,Java,Android,Android Fragments,我对android非常陌生,我有一个问题: 我有一个包含表格的应用程序 如果存储了一些呼叫,我想更改表 现在我在onResume上有一个调用,但是它是在表完全加载之前调用的,所以我没有访问表元素的权限 当我看到Resume上的文档是片段激活之前调用的最后一步时,我不知道在哪里调用我的方法来处理调用 这是ListFragment.java中的代码: @Override public void onResume() { super.onResume(); if (Network.i
@Override
public void onResume() {
super.onResume();
if (Network.isNetworkAvailable(getActivity())) {
processPendingCalls();
}
}
private void processPendingCalls() {
Log.v(TAG, "============= processPendingCalls");
View listview = getActivity().findViewById(R.id.trigger_button);
for (Map.Entry<String, Call.CallData> entry : Call.CALL_MAP.entrySet()) {
Customer.CustomerData customer = Customer.CUSTOMER_MAP.get(entry.getKey());
Call.CallData call = Call.Call_MAP.get(entry.getKey());
if (call.storedRequest) {
Log.v(TAG, "Stored request for " + customer.name);
CompoundButton toggle = (CompoundButton) listview.findViewWithTag(company.id); // this line breaks!!!
Log.v(TAG, "(STORED) Toggle View is: " + toggle);
ProcessManager oom = new ProcessManager(getActivity());
oom.processCallInBackground(customer, "", "", (CompoundButton) toggle, false);
}
}
}
View listview=getActivity.findViewByIdR.id.trigger_按钮;你确定这句话是对的吗?是否将ListView称为id为trigger_按钮的视图?是,它在custom_list_adapter.xml上的id。它应该检索一个列表,然后我可以按标记进行搜索。实际上,我有另一个与此功能几乎相同的功能,但当表格完全加载时,此功能由一个按钮激活,并且该按钮工作正常。您可以发布填充表格的代码吗?您可以覆盖吗激活了吗?然后从那里调用processPendingCalls
09-02 15:27:22.648 7562-7562/com.MyApp.app E/AndroidRuntime﹕ FATAL EXCEPTION: main
java.lang.RuntimeException: Unable to resume activity {com.MyApp.app/com.MyApp.app.ListActivity}: java.lang.IndexOutOfBoundsException: Invalid index 0, size is 0
at android.app.ActivityThread.performResumeActivity(ActivityThread.java:2742)
at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:2771)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1276)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:5041)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.IndexOutOfBoundsException: Invalid index 0, size is 0
at java.util.ArrayList.throwIndexOutOfBoundsException(ArrayList.java:251)
at java.util.ArrayList.get(ArrayList.java:304)
at com.MyApp.app.ProcessManager.injectIDs(ProcessManager.java:142)
at com.MyApp.app.ProcessManager.processCallInBackground(ProcessManager.java:72)
at com.MyApp.app.ListFragment.processPendingCall(ListFragment.java:133)
at com.MyApp.app.ListFragment.onResume(ListFragment.java:82)
at android.support.v4.app.Fragment.performResume(Fragment.java:1543)
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:963)
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1104)
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1086)
at android.support.v4.app.FragmentManagerImpl.dispatchResume(FragmentManager.java:1894)
at android.support.v4.app.FragmentActivity.onResumeFragments(FragmentActivity.java:466)
at android.support.v4.app.FragmentActivity.onPostResume(FragmentActivity.java:455)
at com.actionbarsherlock.app.SherlockFragmentActivity.onPostResume(SherlockFragmentActivity.java:68)