DialogでViewpagerを使おうとした時のお話。
どうもAlertDialog.Builderを今まで使ってたのだが、とうとう不具合？が出てしまった。
今回DialogでViewpagerを使うために他のやつのように
// カスタムビューを設定
LayoutInflater inflater = LayoutInflater.from(this);
final View layout = inflater.inflate(R.layout.dialog_kusuri, (ViewGroup) findViewById(R.id.layout_root));
のDialogのlayoutからlayout.findViewById(R.id.pager)をViewPagerにしたのだが、何故かViewが見つからなくて落ちてしまう。(java.lang.IllegalStateException: Fragment does not have a view)
頑張ってpagerを見つけようとしたけどダメだった。
これは何でだろーってしらべた結果どうもAlertDialog.Builderを使ってるのが悪かったらしい
これからはDialogFragmentを使えとのこと。
ためしにDialogFragmentを使うとすんなり動いた。
PageDialog.java
package com.medicalmonitor;
import android.os.Bundle;
import android.support.v4.app.DialogFragment;
import android.support.v4.view.ViewPager;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.Window;
public class PageDialog extends DialogFragment {
private final static String KEY_URL = "diaog_key_urls";
public static PageDialog newInstance(String[] urls) {
PageDialog fragment = new PageDialog();
Bundle args = new Bundle();
args.putStringArray(KEY_URL, urls);
fragment.setArguments(args);
return fragment;
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
final View view = inflater.inflate(R.layout.dialog_kusuri, container, false);
String[] urls = getArguments().getStringArray(KEY_URL);
final ViewPager viewPager = (ViewPager) view.findViewById(R.id.pager2);
final Dialog_Fragment_pager adapter = new Dialog_Fragment_pager(getChildFragmentManager());
viewPager.setAdapter(adapter);
getDialog().getWindow().requestFeature(Window.FEATURE_NO_TITLE);
getDialog().setCanceledOnTouchOutside(true);
return view;
}
}
Dialog_Fragment_pager.java
package com.medicalmonitor;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import android.view.ViewGroup;
import java.util.HashMap;
import java.util.Map;
public class Dialog_Fragment_pager
extends FragmentPagerAdapter {//FragmentStatePagerAdapterはメモリ破棄する、保存するならこっち
private Map<Integer, String> mFragmentTags;
private FragmentManager mFragmentManager;
public Dialog_Fragment_pager(FragmentManager fm) {
super(fm);
mFragmentManager = fm;
mFragmentTags = new HashMap<Integer, String>();
}
private static final String ARG_SECTION_NUMBER = "section_number";
@Override
public Fragment getItem(int position) {
return frag_dialog_pager_main.newInstance(position);
}
@Override
public int getCount() {
return 3;
}
@Override
public CharSequence getPageTitle(int position) {
return "Page " + position;
}
@Override
public Object instantiateItem(ViewGroup container, int position) {
Object obj = super.instantiateItem(container, position);
if (obj instanceof Fragment) {
// record the fragment tag here.
Fragment f = (Fragment) obj;
String tag = f.getTag();
mFragmentTags.put(position, tag);
}
return obj;
}
public Fragment getFragment(int position) {
String tag = mFragmentTags.get(position);
if (tag == null)
return null;
return mFragmentManager.findFragmentByTag(tag);
}
}
frag_dialog_pager_main.java
package com.medicalmonitor;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.LoaderManager.LoaderCallbacks;
import android.support.v4.content.Loader;
import android.text.TextUtils;
import android.text.format.Time;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;
import org.json.JSONObject;
import java.math.BigDecimal;
import java.util.ArrayList;
import java.util.List;
public class frag_dialog_pager_main extends Fragment {
private static final String KEY_URL_STR = "urlStr";
private static final int KANJANUM = 0;
private static final int UNFINISHEDNUM = 1;
private static final int FINISHEDNUM = 2;
float juuryou=0;
int mNum;//画面の番号１はunfinished２はfinishedとか
final List<CustomData> localobjects = new ArrayList<CustomData>();//ローカルオブジェクト
static frag_dialog_pager_main newInstance(int num) {
frag_dialog_pager_main f = new frag_dialog_pager_main();
// Supply num input as an argument.
Bundle args = new Bundle();
args.putInt("num", num);
f.setArguments(args);
return f;
}
/**
* When creating, retrieve this instance's number from its arguments.
*/
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mNum = getArguments() != null ? getArguments().getInt("num") : 1;
}
AlertDialog.Builder alertDlg2;
private AlertDialog m_dlg;
View rootView;
ListView listView;
//グローバル変数
Globals globals;
ArrayAdapter adapter;
Fragment_pick pick = new Fragment_pick();
// MainActivity activity = (MainActivity) getActivity();
MainActivity main = new MainActivity();
@Override
public View onCreateView(
LayoutInflater inflater,
ViewGroup container,
Bundle savedInstanceState) {
globals = (Globals) getActivity().getApplication();
getActivity().getApplicationContext();
return inflater.inflate(R.layout.frag_picking_finished, container, false);
}
@Override
public void onStop() {
//ImageCache.deleteAll(getCacheDir());
super.onStop();
}
@Override
public void onStart() {
super.onStart();
}
}
↑無駄な処理多いなー
ダイアログ使うときは
PageDialog newFragment = PageDialog.newInstance(null);
newFragment.show(getSupportFragmentManager(), TAG);
だけ！
まぁ動いてよかったー
