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      1 /*
      2 * Copyright 2013 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 
     17 
     18 package com.example.android.donebar;
     19 
     20 import android.app.Activity;
     21 import android.content.Intent;
     22 import android.content.res.Resources;
     23 import android.os.Bundle;
     24 import android.view.View;
     25 import android.view.ViewGroup;
     26 import android.view.ViewTreeObserver;
     27 import android.widget.AdapterView;
     28 import android.widget.BaseAdapter;
     29 import android.widget.GridView;
     30 import android.widget.TextView;
     31 
     32 /**
     33  * A simple launcher activity offering access to the individual samples in this project.
     34  */
     35 public class MainActivity extends Activity implements AdapterView.OnItemClickListener {
     36     private Sample[] mSamples;
     37     private GridView mGridView;
     38 
     39     protected void onCreate(Bundle savedInstanceState) {
     40         super.onCreate(savedInstanceState);
     41         setContentView(R.layout.activity_main);
     42 
     43         // Prepare list of samples in this dashboard.
     44         mSamples = new Sample[]{
     45             new Sample(R.string.donebaractivity_title, R.string.donebaractivity_description,
     46                     DoneBarActivity.class),
     47             new Sample(R.string.donebuttonactivity_title, R.string.donebuttonactivity_description,
     48                     DoneButtonActivity.class),
     49         };
     50 
     51         // Prepare the GridView
     52         mGridView = (GridView) findViewById(android.R.id.list);
     53         mGridView.setAdapter(new SampleAdapter());
     54         mGridView.setOnItemClickListener(this);
     55     }
     56 
     57     @Override
     58     public void onItemClick(AdapterView<?> container, View view, int position, long id) {
     59         startActivity(mSamples[position].intent);
     60     }
     61 
     62     private class SampleAdapter extends BaseAdapter {
     63         @Override
     64         public int getCount() {
     65             return mSamples.length;
     66         }
     67 
     68         @Override
     69         public Object getItem(int position) {
     70             return mSamples[position];
     71         }
     72 
     73         @Override
     74         public long getItemId(int position) {
     75             return mSamples[position].hashCode();
     76         }
     77 
     78         @Override
     79         public View getView(int position, View convertView, ViewGroup container) {
     80             if (convertView == null) {
     81                 convertView = getLayoutInflater().inflate(R.layout.sample_dashboard_item,
     82                         container, false);
     83             }
     84 
     85             ((TextView) convertView.findViewById(android.R.id.text1)).setText(
     86                     mSamples[position].titleResId);
     87             ((TextView) convertView.findViewById(android.R.id.text2)).setText(
     88                     mSamples[position].descriptionResId);
     89             return convertView;
     90         }
     91     }
     92 
     93     private class Sample {
     94         int titleResId;
     95         int descriptionResId;
     96         Intent intent;
     97 
     98         private Sample(int titleResId, int descriptionResId, Intent intent) {
     99             this.intent = intent;
    100             this.titleResId = titleResId;
    101             this.descriptionResId = descriptionResId;
    102         }
    103 
    104         private Sample(int titleResId, int descriptionResId,
    105                 Class<? extends Activity> activityClass) {
    106             this(titleResId, descriptionResId,
    107                     new Intent(MainActivity.this, activityClass));
    108         }
    109     }
    110 }
    111