接口从后preSS回到应用程序后，没有重新加载 [英] Interface not reloaded after returning to app from BACK press
问题描述
我现在有一组选项卡，每个连接到一个片段，而我终于得到了用户界面上的选项卡中的一个来看看应该如何。这里有一个如何在应用程序的外观时，它已经正确加载截图（首次推出后，并滚动到一个标签）：
包com.davekelley.polling;
进口android.app.Activity;
进口android.app.AlertDialog;
进口android.content.Context;
进口android.os.Bundle;
进口android.util.Log;
进口android.view.LayoutInflater;
进口android.view.View;
进口android.view.ViewGroup;
进口android.view.View.OnClickListener;
进口android.view.ViewGroup.LayoutParams;
进口android.view.inputmethod.InputMethodManager;
进口android.widget.Button;
进口android.widget.LinearLayout;
进口android.widget.RelativeLayout;
进口android.widget.ScrollView;
进口android.widget.TableLayout;
进口android.widget.TableRow;
进口android.widget.TextView;
进口android.support.v4.app.Fragment;
公共类EconFragment扩展片段{
私人的ViewGroup容器;
私人TableLayout questionContainer;
私人滚动型滚动视图;
私人的ViewGroup econFragment;
静态INT POS = 0;
公共查看onCreateView（LayoutInflater充气，容器的ViewGroup，捆绑savedInstanceState）{
Log.d（经济舱，onCreateView）;
this.container =容器;
返回inflater.inflate（R.layout.econfragment，集装箱，假）;
}
公共无效onResume（）{
super.onResume（）;
questionContainer =（TableLayout）getActivity（）findViewById（R.id.questionContainer）。
LayoutInflater充气=（LayoutInflater）getActivity（）。
getSystemService（Context.LAYOUT_INFLATER_SERVICE）;
//这行是我第一次尝试，试图得到返回后重新填充的问题
//从pressing回来 - 作为然而，他们没有重新填充屏幕：
//查看econFragment = inflater.inflate（R.layout.econfragment，NULL）;
//container.addView(econFragment）;
INT LEFTMARGIN = 5;
INT TOPMARGIN = 5;
INT rightMargin = 5;
INT bottomMargin = 5;
而（正小于10）{
查看问题= inflater.inflate（R.layout.question，NULL）;
question.setId（POS）;
POS ++;
的TableRow TR =（的TableRow）的问题;
TableLayout.LayoutParams trParams =新TableLayout.LayoutParams（
TableLayout.LayoutParams.MATCH_PARENT，
TableLayout.LayoutParams.WRAP_CONTENT）;
trParams.setMargins（LEFTMARGIN，TOPMARGIN，rightMargin，bottomMargin）;
tr.setLayoutParams（trParams）;
questionContainer.addView（TR）;
}
Log.d（经济舱，onResume）;
}
公共无效onAttach（活动活动）{
super.onAttach（活动）;
Log.d（经济舱，onAttach）;
}
公共无效的onCreate（包savedInstanceState）{
super.onCreate（savedInstanceState）;
Log.d（经济舱，的onCreate）;
}
公共无效onActivityCreated（包savedInstanceState）{
super.onActivityCreated（savedInstanceState）;
Log.d（经济舱，onActivityCreated）;
}
公共无效的OnStart（）{
super.onStart（）;
Log.d（经济舱，的OnStart）;
}
公共无效的onPause（）{
super.onPause（）;
Log.d（经济舱，的onPause）;
}
公共无效的onStop（）{
super.onStop（）;
Log.d（经济舱，的onStop）;
}
公共无效onDestroyView（）{
super.onDestroyView（）;
Log.d（经济舱，ondestroyview）;
}
公共无效的onDestroy（）{
super.onDestroy（）;
Log.d（经济舱，的OnDestroy）;
}
公共无效onDetach（）{
super.onDetach（）;
Log.d（经济舱，ondetach）;
}
}
还挺得到了提上了次要地位，因为我曾在我的应用程序的其他方面的问题。原来的解决方案是一个简单的：如在code所列POS变量是静态的，所以while循环无法从0-10 reclimb。这里的答案：<一href="http://stackoverflow.com/questions/9960035/even-though-oncreateview-runs-again-view-does-not-properly-reassemble-after-bac/9960160#9960160">Even虽然onCreateView再次运行，显示不正常后返回preSS重组？
I currently have a set of tabs, each tied to a fragment, and I've finally gotten the UI on one of the tabs to look how it should. Here's a screenshot of how the app looks when it has properly loaded (after initial launch and scrolling to a tab): Now, after I hit the back button (I haven't and won't be bothering with a backStack for each tab - I don't like that UI paradigm) and then use app switcher or relaunch from the launcher, my questionRows are gone (they don't reload). Do I need to implement something in onPause to save my display? Why doesn't onResume take care of it this?
package com.davekelley.polling;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.Context;
import android.os.Bundle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.View.OnClickListener;
import android.view.ViewGroup.LayoutParams;
import android.view.inputmethod.InputMethodManager;
import android.widget.Button;
import android.widget.LinearLayout;
import android.widget.RelativeLayout;
import android.widget.ScrollView;
import android.widget.TableLayout;
import android.widget.TableRow;
import android.widget.TextView;
import android.support.v4.app.Fragment;
public class EconFragment extends Fragment {
private ViewGroup container;
private TableLayout questionContainer;
private ScrollView scrollView;
private ViewGroup econFragment;
static int pos = 0;
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
Log.d("Econ", "onCreateView");
this.container = container;
return inflater.inflate(R.layout.econfragment, container, false);
}
public void onResume() {
super.onResume();
questionContainer = (TableLayout) getActivity().findViewById(R.id.questionContainer);
LayoutInflater inflater = (LayoutInflater) getActivity().
getSystemService(Context.LAYOUT_INFLATER_SERVICE);
//these lines are my first attempt to try and get the questions to repopulate after returning
//from pressing back - as of yet, they don't repopulate the screen:
//View econFragment = inflater.inflate(R.layout.econfragment, null);
//container.addView(econFragment);
int leftMargin=5;
int topMargin=5;
int rightMargin=5;
int bottomMargin=5;
while (pos < 10) {
View question = inflater.inflate(R.layout.question, null);
question.setId(pos);
pos++;
TableRow tr = (TableRow) question;
TableLayout.LayoutParams trParams = new TableLayout.LayoutParams(
TableLayout.LayoutParams.MATCH_PARENT,
TableLayout.LayoutParams.WRAP_CONTENT);
trParams.setMargins(leftMargin, topMargin, rightMargin, bottomMargin);
tr.setLayoutParams(trParams);
questionContainer.addView(tr);
}
Log.d("Econ", "onResume");
}
public void onAttach(Activity activity) {
super.onAttach(activity);
Log.d("Econ", "onAttach");
}
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Log.d("Econ", "onCreate");
}
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
Log.d("Econ", "onActivityCreated");
}
public void onStart() {
super.onStart();
Log.d("Econ", "OnStart");
}
public void onPause() {
super.onPause();
Log.d("Econ", "onpause");
}
public void onStop() {
super.onStop();
Log.d("Econ", "onstop");
}
public void onDestroyView() {
super.onDestroyView();
Log.d("Econ", "ondestroyview");
}
public void onDestroy() {
super.onDestroy();
Log.d("Econ", "ondestroy");
}
public void onDetach() {
super.onDetach();
Log.d("Econ", "ondetach");
}
}
The question kinda got put on the backburner as I worked on other areas of my app. It turns out the solution was a simple one: the pos variable as listed in the code was static, so the while loop could not reclimb from 0-10. Here's the answer: Even though onCreateView runs again, View does not properly reassemble after BACK press?
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