| /* |
| * Copyright (C) 2013 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package com.android.transitiontests; |
| |
| import android.app.Activity; |
| import android.content.Context; |
| import android.os.Bundle; |
| import android.view.View; |
| import android.view.ViewTreeObserver; |
| import android.transition.Fade; |
| import android.transition.Scene; |
| import android.widget.AdapterView; |
| import android.widget.ArrayAdapter; |
| import android.widget.LinearLayout; |
| import android.widget.ListView; |
| import android.widget.TextView; |
| import android.transition.AutoTransition; |
| import android.transition.ChangeBounds; |
| import android.transition.Transition; |
| import android.transition.TransitionListenerAdapter; |
| import android.transition.TransitionManager; |
| import android.transition.TransitionSet; |
| |
| import java.util.ArrayList; |
| import java.util.HashMap; |
| import java.util.List; |
| |
| public class ListViewAddRemove extends Activity { |
| |
| final ArrayList<String> numList = new ArrayList<String>(); |
| |
| @Override |
| public void onCreate(Bundle savedInstanceState) { |
| super.onCreate(savedInstanceState); |
| setContentView(R.layout.list_view_add_remove); |
| |
| final LinearLayout container = findViewById(R.id.container); |
| |
| final ListView listview = findViewById(R.id.listview); |
| for (int i = 0; i < 200; ++i) { |
| numList.add(Integer.toString(i)); |
| } |
| final StableArrayAdapter adapter = new StableArrayAdapter(this, |
| android.R.layout.simple_list_item_1, numList); |
| listview.setAdapter(adapter); |
| |
| final ViewTreeObserver observer = container.getViewTreeObserver(); |
| observer.addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() { |
| public void onGlobalLayout() { |
| System.out.println("-------------------------------------"); |
| System.out.println("onLayoutListener: listview view tops: "); |
| for (int i = 0; i < listview.getChildCount(); ++i) { |
| TextView view = (TextView) listview.getChildAt(i); |
| System.out.println(" " + view.getText() + ": " + view.getTop()); |
| } |
| } |
| }); |
| |
| final Scene mySceneChanger = new Scene(listview); |
| |
| mySceneChanger.setEnterAction(new Runnable() { |
| @Override |
| public void run() { |
| numList.remove(mItemToDelete); |
| adapter.notifyDataSetChanged(); |
| } |
| }); |
| final Transition myTransition = new AutoTransition(); |
| final TransitionSet noFadeIn = new TransitionSet(). |
| setOrdering(TransitionSet.ORDERING_SEQUENTIAL); |
| Fade fadeIn = new Fade(Fade.IN); |
| fadeIn.setDuration(50); |
| noFadeIn.addTransition(new Fade(Fade.OUT)).addTransition(new ChangeBounds()).addTransition(fadeIn); |
| |
| myTransition.addListener(new TransitionListenerAdapter() { |
| @Override |
| public void onTransitionStart(Transition transition) { |
| System.out.println("---------ListView Tops: Before--------"); |
| for (int i = 0; i < listview.getChildCount(); ++i) { |
| TextView view = (TextView) listview.getChildAt(i); |
| int position = listview.getPositionForView(view); |
| } |
| } |
| |
| @Override |
| public void onTransitionEnd(Transition transition) { |
| System.out.println("---------ListView Tops: After--------"); |
| for (int i = 0; i < listview.getChildCount(); ++i) { |
| TextView view = (TextView) listview.getChildAt(i); |
| int position = listview.getPositionForView(view); |
| if (view.hasTransientState()) { |
| // view.setHasTransientState(false); |
| } |
| } |
| myTransition.removeListener(this); |
| } |
| }); |
| |
| listview.setOnItemClickListener(new AdapterView.OnItemClickListener() { |
| |
| @Override |
| public void onItemClick(AdapterView<?> parent, final View view, int position, long id) { |
| System.out.println("---------ListView Tops: OnClick--------"); |
| String item = (String) parent.getItemAtPosition(position); |
| for (int i = 0; i < listview.getChildCount(); ++i) { |
| TextView v = (TextView) listview.getChildAt(i); |
| if (!item.equals(v.getText())) { |
| // v.setHasTransientState(true); |
| } |
| } |
| // listview.setHasTransientState(true); |
| mItemToDelete = item; |
| // numList.remove(item); |
| TransitionManager.go(mySceneChanger, noFadeIn); |
| // view.postDelayed(new Runnable() { |
| // @Override |
| // public void run() { |
| // for (int i = 0; i < listview.getChildCount(); ++i) { |
| // TextView v = (TextView) listview.getChildAt(i); |
| // v.setHasTransientState(false); |
| // } |
| // } |
| // }, 200); |
| } |
| |
| }); |
| } |
| |
| String mItemToDelete = null; |
| |
| private class StableArrayAdapter extends ArrayAdapter<String> { |
| |
| HashMap<String, Integer> mIdMap = new HashMap<String, Integer>(); |
| |
| public StableArrayAdapter(Context context, int textViewResourceId, |
| List<String> objects) { |
| super(context, textViewResourceId, objects); |
| for (int i = 0; i < objects.size(); ++i) { |
| mIdMap.put(objects.get(i), i); |
| } |
| } |
| |
| @Override |
| public long getItemId(int position) { |
| String item = getItem(position); |
| return mIdMap.get(item); |
| } |
| |
| @Override |
| public boolean hasStableIds() { |
| return true; |
| } |
| |
| } |
| } |