Home | History | Annotate | Download | only in app 
      1 /*
      2  * Copyright (C) 2010 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 package com.example.android.supportv7.app;
     17 
     18 import com.example.android.supportv7.R;
     19 
     20 import android.graphics.drawable.Drawable;
     21 import android.os.Bundle;
     22 import android.support.v4.view.MenuItemCompat;
     23 import android.support.v7.app.ActionBarActivity;
     24 import android.support.v7.widget.SearchView;
     25 import android.text.TextUtils;
     26 import android.view.Menu;
     27 import android.view.MenuInflater;
     28 import android.view.MenuItem;
     29 import android.widget.TextView;
     30 import android.widget.Toast;
     31 
     32 /**
     33  * This demonstrates idiomatic usage of the Action Bar. The default Honeycomb theme
     34  * includes the action bar by default and a menu resource is used to populate the
     35  * menu data itself. If you'd like to see how these things work under the hood, see
     36  * ActionBarMechanics.
     37  */
     38 public class ActionBarUsage extends ActionBarActivity {
     39     TextView mSearchText;
     40     int mSortMode = -1;
     41 
     42     @Override
     43     protected void onCreate(Bundle savedInstanceState) {
     44         super.onCreate(savedInstanceState);
     45         mSearchText = new TextView(this);
     46         setContentView(mSearchText);
     47     }
     48 
     49     @Override
     50     public boolean onCreateOptionsMenu(Menu menu) {
     51         MenuInflater inflater = getMenuInflater();
     52         inflater.inflate(R.menu.actions, menu);
     53         SearchView searchView = (SearchView) MenuItemCompat
     54                 .getActionView(menu.findItem(R.id.action_search));
     55         searchView.setOnQueryTextListener(mOnQueryTextListener);
     56         return true;
     57     }
     58 
     59     @Override
     60     public boolean onPrepareOptionsMenu(Menu menu) {
     61         if (mSortMode != -1) {
     62             Drawable icon = menu.findItem(mSortMode).getIcon();
     63             menu.findItem(R.id.action_sort).setIcon(icon);
     64         }
     65         return super.onPrepareOptionsMenu(menu);
     66     }
     67 
     68     @Override
     69     public boolean onOptionsItemSelected(MenuItem item) {
     70         Toast.makeText(this, "Selected Item: " + item.getTitle(), Toast.LENGTH_SHORT).show();
     71         return true;
     72     }
     73 
     74     // This method is specified as an onClick handler in the menu xml and will
     75     // take precedence over the Activity's onOptionsItemSelected method.
     76     // See res/menu/actions.xml for more info.
     77     public void onSort(MenuItem item) {
     78         mSortMode = item.getItemId();
     79         // Request a call to onPrepareOptionsMenu so we can change the sort icon
     80         supportInvalidateOptionsMenu();
     81     }
     82 
     83     // The following callbacks are called for the SearchView.OnQueryChangeListener
     84     // For more about using SearchView, see src/.../view/SearchView1.java and SearchView2.java
     85     private final SearchView.OnQueryTextListener mOnQueryTextListener =
     86             new SearchView.OnQueryTextListener() {
     87         @Override
     88         public boolean onQueryTextChange(String newText) {
     89             newText = TextUtils.isEmpty(newText) ? "" : "Query so far: " + newText;
     90             mSearchText.setText(newText);
     91             return true;
     92         }
     93 
     94         @Override
     95         public boolean onQueryTextSubmit(String query) {
     96             Toast.makeText(ActionBarUsage.this,
     97                     "Searching for: " + query + "...", Toast.LENGTH_SHORT).show();
     98             return true;
     99         }
    100     };
    101 }
    102