MainActivity.cs
protected override void OnCreate(Bundle bundle)
{
base.OnCreate(bundle);
var libraryDbContext = new LibraryDbContext();
if(libraryDbContext.HasDatabase() == false)
{
Toast.MakeText(this, "Creating and Intitializing Database", ToastLength.Long).Show();
}
SetContentView(Resource.Layout.MainLayout);
mSearch = FindViewById<EditText>(Resource.Id.etSearch);
mListView = FindViewById<ListView>(Resource.Id.listView);
mContainer = FindViewById<LinearLayout>(Resource.Id.llContainer);
Action<ImageView> action = PicSelected;
mSearch.Focusable = false;
mSearch.FocusableInTouchMode = false;
mSearch.ClearFocus();
mSearch.Alpha = 0;
mSearch.TextChanged += MSearch_TextChanged;
mBooks = db.Table<LibraryDbModel.Books>().Where(b => b.Delete == false).ToList();
mAdapter = new BookListAdapter(this, Resource.Layout.row_book, action, mBooks);
mListView.Adapter = mAdapter;
mListView.DescendantFocusability = DescendantFocusability.BlockDescendants;
mListView.Focusable = true;
mListView.ChoiceMode = ChoiceMode.None;
mListView.ItemsCanFocus = true;
mListView.OnItemClickListener = this;
var item = mListView.IsFocused;
Toast.MakeText(this, item.ToString(), ToastLength.Long).Show();
}
public void OnItemClick(AdapterView parent, View view, int position, long id)
{
var getBooksAuthors = db.Table<LibraryDbModel.BooksAuthors>().ToList();
var getAuthors = new List<LibraryDbModel.Authors>();
getBooksAuthors.ForEach(ba => getAuthors.Add(db.Table<LibraryDbModel.Authors>().Where(a => a.Id == ba.AuthorId && a.Delete == false).SingleOrDefault()));
var book = mAdapter[position];
var DialogViewBookActivity = new Intent(this, typeof(DialogViewBook));
DialogViewBookActivity.PutExtra("title", book.Title);
DialogViewBookActivity.PutExtra("author", getAuthors.FirstOrDefault().LastName);
DialogViewBookActivity.PutExtra("year", book.Copyright.Year);
DialogViewBookActivity.PutExtra("sypnosis", book.Synopsis);
StartActivity(DialogViewBookActivity);
}
这是我的MainActivity的 XML ：
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="@drawable/bg_right">
<LinearLayout
android:layout_height="match_parent"
android:layout_width="match_parent"
android:orientation="vertical"
android:id="@+id/llContainer"
android:focusable="true"
android:focusableInTouchMode="true">
<EditText
android:layout_width="match_parent"
android:layout_height="40dp"
android:id="@+id/etSearch"
android:hint="Search Books"
android:background="#FFFFFF"
android:textColor="#000000"
android:paddingTop="5dp"
android:paddingBottom="5dp"
android:layout_marginLeft="2dp"
android:layout_marginRight="2dp"
android:layout_marginTop="8dp" />
<View
android:id="@+id/invi"
android:layout_width="match_parent"
android:layout_height="2dp" />
<ListView
android:layout_below="@id/invi"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:id="@+id/listView"
android:minWidth="25px"
android:minHeight="25px" />
</LinearLayout>
<FrameLayout
android:layout_width="fill_parent"
android:layout_height="?android:attr/actionBarSize"
android:background="#FF8B1A"
android:textColor="#000000"
android:id="@+id/fakeActionBar">
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<ImageView
android:src="@drawable/ic_action_preferences"
android:layout_width="40dp"
android:layout_height="match_parent"
android:id="@+id/imgPreferences"
android:layout_gravity="left"
android:scaleType="fitCenter"
android:showAsAction="always"
android:layout_marginLeft="10dp" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/txtTitle"
android:text="Library"
android:layout_gravity="left"
android:showAsAction="always"
android:layout_marginLeft="10dp"
android:textSize="30sp"
android:textColor="#FFFFFF"
android:layout_toRightOf="@id/imgPreferences"
android:layout_centerVertical="true" />
</RelativeLayout>
<ImageView
android:src="@drawable/ic_action_search"
android:layout_width="40dp"
android:layout_height="match_parent"
android:id="@+id/imgSearch"
android:layout_gravity="right"
android:scaleType="fitCenter"
android:showAsAction="always"
android:layout_marginRight="50dp" />
<ImageView
android:src="@drawable/ic_action_download"
android:layout_width="40dp"
android:layout_height="match_parent"
android:id="@+id/imgDownload"
android:layout_gravity="right"
android:scaleType="fitCenter"
android:showAsAction="always"
android:layout_marginRight="10dp" />
</FrameLayout>
</FrameLayout>
这是我的 BookListAdapter.cs ：
namespace App1
{
class BookListAdapter : BaseAdapter<LibraryDbModel.Books>//, ListView.IOnItemClickListener
{
private Context mContext;
private Context mMainActivityContext;
private int mLayout;
private List<LibraryDbModel.Books> mBooks;
private Action<ImageView> mActionPicSelected;
private int position;
private SQLiteConnection db = new SQLiteConnection(System.IO.Path.Combine(System.Environment.GetFolderPath(Environment.SpecialFolder.Personal), "LibraryDbContext"));
public BookListAdapter(Context context, int layout, Action<ImageView> picSelected, List<LibraryDbModel.Books> books)
{
mMainActivityContext = context;
mContext = context;
mLayout = layout;
mBooks = books;
mActionPicSelected = picSelected;
}
public override LibraryDbModel.Books this[int position]
{
get { return mBooks[position]; }
}
public override int Count
{
get { return mBooks.Count; }
}
public override long GetItemId(int position)
{
return position;
}
public override View GetView(int position, View convertView, ViewGroup parent)
{
View row = convertView;
if (row == null)
{
row = LayoutInflater.From(mContext).Inflate(mLayout, parent, false);
}
var getBooksAuthors = db.Table<LibraryDbModel.BooksAuthors>().ToList();
var getAuthors = new List<LibraryDbModel.Authors>();
getBooksAuthors.ForEach(ba => getAuthors.Add(db.Table<LibraryDbModel.Authors>().Where(a => a.Id == ba.AuthorId && a.Delete == false).SingleOrDefault()));
row.FindViewById<TextView>(Resource.Id.txtBook).Text = mBooks[position].Title;
row.FindViewById<TextView>(Resource.Id.txtAuthor).Text = getAuthors.FirstOrDefault().LastName + " et al (" + mBooks[position].Copyright.Year + ")";
row.FindViewById<TextView>(Resource.Id.txtSynopsis).Text = mBooks[position].Synopsis;
ImageView pic = row.FindViewById<ImageView>(Resource.Id.imgPic);
row.Clickable = true;
row.Focusable = true;
row.FocusableInTouchMode = true;
pic.Click -= pic_Click;
pic.Click += pic_Click;
return row;
}
void pic_Click(object sender, EventArgs e)
{
//Picture has been clicked
mActionPicSelected.Invoke((ImageView)sender);
}
}
}
先谢谢！