Android 从web获取favicon并将其保存到Pojo类中声明的图标
我有一个Android 从web获取favicon并将其保存到Pojo类中声明的图标,android,sqlite,android-recyclerview,Android,Sqlite,Android Recyclerview,我有一个RecycleServiceAdapter，我称之为MyAdapter，在那里我设置了一个书签：ID、名称、图标、搜索URL 我可以显示所有这些图标，但对于图标，它只能在Drawable中工作。 我不想将位图转换为可绘制的，我只想获取保存在DB中的url格式。 我想从位图中提取图标，因为图标取决于它是从哪个搜索URL获得的。 SearchUrl=“” 在图标中，我需要显示youtube的图标。 正如我所说，这是从drawable手动工作，但这取决于用户，我不知道它是写什么样的Url 下面
RecycleServiceAdapterMyAdapterDrawable我想从位图中提取图标，因为图标取决于它是从哪个搜索URL获得的。
SearchUrl=“” 在图标中，我需要显示youtube的图标。 正如我所说，这是从drawable手动工作，但这取决于用户，我不知道它是写什么样的Url 下面您可以找到代码
@Override
public void onBindViewHolder(@NonNull RecyclerView.ViewHolder holder, final int position) {
final int itemType = getItemViewType(position);
if (itemType == ITEM_TYPE_ONE) {
final ViewHolder viewHolder = (ViewHolder) holder;
viewHolder.tvName.setText(arrayList.get(position).getName());
Bitmap bitmap = BitmapFactory.decodeStream((InputStream)new URL(viewHolder.tvSearchUrl.setText(arrayList.get(position).getSearchUrl())).getContent()); //Here is the error of the new URL
viewHolder.tvIcon.setImageBitmap(bitmap);
viewHolder.tvId.setText(arrayList.get(position).getId());
viewHolder.tvSearchUrl.setText(arrayList.get(position).getSearchUrl());
viewHolder.tvNativeUrl.setText(arrayList.get(position).getNativeUrl());
viewHolder.tvIcon.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent;
String Url = viewHolder.tvSearchUrl.getText().toString();
String Name = viewHolder.tvName.getText().toString();
intent = new Intent(context, BookmarkActivity.class);
intent.putExtra("WebSearchUrl", Url);
intent.putExtra("WebSearchName", Name);
v.getContext().startActivity(intent);
}
});
viewHolder.tvIcon.setOnLongClickListener(new View.OnLongClickListener() {
@Override
public boolean onLongClick(View v) {
Intent intent = new Intent(context, ActivityChangeBookmark.class);
String Url = viewHolder.tvSearchUrl.getText().toString();
String Name = viewHolder.tvName.getText().toString();
Integer Id = viewHolder.tvId.getId();
Bundle extras = new Bundle();
viewHolder.tvIcon.buildDrawingCache();
Bitmap image = viewHolder.tvIcon.getDrawingCache();
intent.putExtra("Url", Url);
intent.putExtra("Name", Name);
intent.putExtra("ID", Id);
extras.putParcelable("Image", image);
intent.putExtras(extras);
v.getContext().startActivity(intent);
return false;
}
});
} else if (itemType == ITEM_TYPE_TWO) {
ButtonViewHolder buttonViewHolder = (ButtonViewHolder) holder;
buttonViewHolder.imgButton.setImageResource(arrayList.get(position).getIcon());
}
}
viewHolder.tvIcon.setImageResource（arrayList.get（position.getIcon（））
除此之外，它仅从可绘制图标和可绘制图标中提取
书签类
public class Bookmark {
String name, id, nativeUrl, searchUrl;
int icon;
int viewType;
public String getName() { return name; }
public void setName(String name) {
this.name = name;
}
public int getIcon() { return icon; }
public void setIcon(int icon) {
this.icon = icon;
}
public String getId(){
return id;
}
public void setId(String id) {
this.id = id;
}
public String getNativeUrl() {
return nativeUrl;
}
public void setNativeUrl(String nativeUrl) {
this.nativeUrl = nativeUrl;
}
public String getSearchUrl() {
return searchUrl;
}
public void setSearchUrl(String searchUrl) {
this.searchUrl = searchUrl;
}
public int getViewType() {
return viewType;
}
public void setViewType(int viewType) {
this.viewType = viewType;
}
@Override
public String toString() {
return "Bookmark{" +
"name='" + name + '\'' +
", icon='" + icon + '\'' +
", id='" + id + '\'' +
", nativeUrl='" + nativeUrl + '\'' +
", searchUrl='" + searchUrl + '\'' +
'}';
}
}
public class ActivityChangeBookmark extends AppCompatActivity {
private ArrayList<String> listItems = new ArrayList<String>();
private RecyclerView recyclerView;
Button saveBookmark, cancelBookmark;
TextView name, url;
ImageView icon, mIcon;
EditText mName, mUrl, mID;
public static final String Save_Bookmark = "Save_Bookmark";
String Url, Name;
Integer Id;
MyAdapter myAdapter;
BookmarkDB bookmarkDB;
ButtonRobotoMedium removeBookmark, sendToHomeScreen;
ArrayList<Bookmark> arrayList = new ArrayList<>();
@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_change_bookmark);
saveBookmark = findViewById(R.id.btnSave);
name = findViewById(R.id.tvNameEdit);
url = findViewById(R.id.tvURLEdit);
recyclerView = findViewById(R.id.myRecyclerView);
icon = findViewById(R.id.ivFavIcon);
mName = findViewById(R.id.etNameEdit);
mUrl = findViewById(R.id.etURLEdit);
sendToHomeScreen = findViewById(R.id.btnAddIconToDeviceScreen);
name.setVisibility(View.GONE);
url.setVisibility(View.GONE);
bookmarkDB = new BookmarkDB(getApplicationContext());
Intent intent = getIntent();
myAdapter = new MyAdapter(getApplicationContext(), arrayList);
Bundle extras = intent.getExtras();
if (extras != null) {
Url = intent.getExtras().getString("Url");
Name = intent.getExtras().getString("Name");
Id = intent.getExtras().getInt("ID");
Bitmap bitmap = intent.getExtras().getParcelable("Image");
mName.setText(Name);
mUrl.setText(Url);
icon.setImageBitmap(bitmap);
removeBookmark.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
bookmarkDB.deleteName(Id, Name);
myAdapter.notifyDataSetChanged();
finish();
}
});
}
else {
removeBookmark.setVisibility(View.GONE);
sendToHomeScreen.setVisibility(View.GONE);
icon.setImageResource(R.drawable.user_bookmark);
mName.setText("");
mUrl.setText("");
}
saveBookmark.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
saveData();
myAdapter.notifyDataSetChanged();
finish();
}
});
public void saveData() {
Random r = new Random();
int low = 14;
int high = 100;
int result = r.nextInt(high-low) + low;
bookmarkDB.addBookmark(result, mName.getText().toString(), false, "https://www.google.com/s2/favicons?domain=" + mUrl.getText().toString(), mUrl.getText().toString(), "http://" + mUrl.getText().toString());
}
}
public class BookmarkDB extends SQLiteOpenHelper {
public static final String DBNAME = "bookmarks.db"; // The name of the
database file
public static final int DBVERSION = 1; // The Database version
public static final String TBL_BOOKMARK = "bookmark";
public static final String COL_ID = BaseColumns._ID; // equates to _id
public static final String COl_NAME = "name";
public static final String COl_HIDDEN = "hidden";
public static final String COL_ICON = "icon";
public static final String COL_NATIVEURL = "nativeurl";
public static final String COL_SEARCHURL = "searchurl";
SQLiteDatabase mDB;
public BookmarkDB(Context context) {
super(context, DBNAME, null, DBVERSION);
mDB = this.getWritableDatabase();
}
@Override
public void onCreate(SQLiteDatabase db) {
// The SQL to be used to create the table
String crt_bookmark_tbl_sql = "CREATE TABLE IF NOT EXISTS " + TBL_BOOKMARK + "(" +
COL_ID + " INTEGER PRIMARY KEY AUTOINCREMENT, " +
COl_NAME + " TEXT, " +
COl_HIDDEN + " INTEGER, " +
COL_ICON + " TEXT, " +
COL_NATIVEURL + " TEXT," +
COL_SEARCHURL + " TEXT" +
")";
db.execSQL(crt_bookmark_tbl_sql); // CREATE THE TABLE
}
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
db.execSQL("DROP IF TABLE EXISTS " + DBNAME);
onCreate(db);
}
public long addBookmark(long id, String name, boolean hidden, String icon, String nativeurl, String searchurl) {
ContentValues cv = new ContentValues();
cv.put(COl_NAME,name);
cv.put(COl_HIDDEN,hidden);
cv.put(COL_ICON,icon);
cv.put(COL_NATIVEURL,nativeurl);
cv.put(COL_SEARCHURL,searchurl);
// uses the convenience insert method that builds the SQL
return mDB.insert(TBL_BOOKMARK,null,cv);
}
public ArrayList<Bookmark> getAllBookmarks() {
ArrayList<Bookmark> rv = new ArrayList<>();
Cursor csr = mDB.query(TBL_BOOKMARK,null,null,null,null,null, null);
while (csr.moveToNext()) {
Bookmark b = new Bookmark();
b.setId(csr.getString(csr.getColumnIndex(COL_ID)));
b.setName(csr.getString(csr.getColumnIndex(COl_NAME)));
b.setIcon(csr.getInt(csr.getColumnIndex(COL_ICON))); // Here I set the icon but I want to set icon from the saved SearchUrl.
b.setViewType(csr.getInt(csr.getColumnIndex(COl_NAME)));
b.setNativeUrl(csr.getString(csr.getColumnIndex(COL_NATIVEURL)));
b.setSearchUrl(csr.getString(csr.getColumnIndex(COL_SEARCHURL)));
rv.add(b);
}
return rv;
}
ActivityChangeBookmark.class
public class Bookmark {
String name, id, nativeUrl, searchUrl;
int icon;
int viewType;
public String getName() { return name; }
public void setName(String name) {
this.name = name;
}
public int getIcon() { return icon; }
public void setIcon(int icon) {
this.icon = icon;
}
public String getId(){
return id;
}
public void setId(String id) {
this.id = id;
}
public String getNativeUrl() {
return nativeUrl;
}
public void setNativeUrl(String nativeUrl) {
this.nativeUrl = nativeUrl;
}
public String getSearchUrl() {
return searchUrl;
}
public void setSearchUrl(String searchUrl) {
this.searchUrl = searchUrl;
}
public int getViewType() {
return viewType;
}
public void setViewType(int viewType) {
this.viewType = viewType;
}
@Override
public String toString() {
return "Bookmark{" +
"name='" + name + '\'' +
", icon='" + icon + '\'' +
", id='" + id + '\'' +
", nativeUrl='" + nativeUrl + '\'' +
", searchUrl='" + searchUrl + '\'' +
'}';
}
}
public class ActivityChangeBookmark extends AppCompatActivity {
private ArrayList<String> listItems = new ArrayList<String>();
private RecyclerView recyclerView;
Button saveBookmark, cancelBookmark;
TextView name, url;
ImageView icon, mIcon;
EditText mName, mUrl, mID;
public static final String Save_Bookmark = "Save_Bookmark";
String Url, Name;
Integer Id;
MyAdapter myAdapter;
BookmarkDB bookmarkDB;
ButtonRobotoMedium removeBookmark, sendToHomeScreen;
ArrayList<Bookmark> arrayList = new ArrayList<>();
@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_change_bookmark);
saveBookmark = findViewById(R.id.btnSave);
name = findViewById(R.id.tvNameEdit);
url = findViewById(R.id.tvURLEdit);
recyclerView = findViewById(R.id.myRecyclerView);
icon = findViewById(R.id.ivFavIcon);
mName = findViewById(R.id.etNameEdit);
mUrl = findViewById(R.id.etURLEdit);
sendToHomeScreen = findViewById(R.id.btnAddIconToDeviceScreen);
name.setVisibility(View.GONE);
url.setVisibility(View.GONE);
bookmarkDB = new BookmarkDB(getApplicationContext());
Intent intent = getIntent();
myAdapter = new MyAdapter(getApplicationContext(), arrayList);
Bundle extras = intent.getExtras();
if (extras != null) {
Url = intent.getExtras().getString("Url");
Name = intent.getExtras().getString("Name");
Id = intent.getExtras().getInt("ID");
Bitmap bitmap = intent.getExtras().getParcelable("Image");
mName.setText(Name);
mUrl.setText(Url);
icon.setImageBitmap(bitmap);
removeBookmark.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
bookmarkDB.deleteName(Id, Name);
myAdapter.notifyDataSetChanged();
finish();
}
});
}
else {
removeBookmark.setVisibility(View.GONE);
sendToHomeScreen.setVisibility(View.GONE);
icon.setImageResource(R.drawable.user_bookmark);
mName.setText("");
mUrl.setText("");
}
saveBookmark.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
saveData();
myAdapter.notifyDataSetChanged();
finish();
}
});
public void saveData() {
Random r = new Random();
int low = 14;
int high = 100;
int result = r.nextInt(high-low) + low;
bookmarkDB.addBookmark(result, mName.getText().toString(), false, "https://www.google.com/s2/favicons?domain=" + mUrl.getText().toString(), mUrl.getText().toString(), "http://" + mUrl.getText().toString());
}
}
public class BookmarkDB extends SQLiteOpenHelper {
public static final String DBNAME = "bookmarks.db"; // The name of the
database file
public static final int DBVERSION = 1; // The Database version
public static final String TBL_BOOKMARK = "bookmark";
public static final String COL_ID = BaseColumns._ID; // equates to _id
public static final String COl_NAME = "name";
public static final String COl_HIDDEN = "hidden";
public static final String COL_ICON = "icon";
public static final String COL_NATIVEURL = "nativeurl";
public static final String COL_SEARCHURL = "searchurl";
SQLiteDatabase mDB;
public BookmarkDB(Context context) {
super(context, DBNAME, null, DBVERSION);
mDB = this.getWritableDatabase();
}
@Override
public void onCreate(SQLiteDatabase db) {
// The SQL to be used to create the table
String crt_bookmark_tbl_sql = "CREATE TABLE IF NOT EXISTS " + TBL_BOOKMARK + "(" +
COL_ID + " INTEGER PRIMARY KEY AUTOINCREMENT, " +
COl_NAME + " TEXT, " +
COl_HIDDEN + " INTEGER, " +
COL_ICON + " TEXT, " +
COL_NATIVEURL + " TEXT," +
COL_SEARCHURL + " TEXT" +
")";
db.execSQL(crt_bookmark_tbl_sql); // CREATE THE TABLE
}
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
db.execSQL("DROP IF TABLE EXISTS " + DBNAME);
onCreate(db);
}
public long addBookmark(long id, String name, boolean hidden, String icon, String nativeurl, String searchurl) {
ContentValues cv = new ContentValues();
cv.put(COl_NAME,name);
cv.put(COl_HIDDEN,hidden);
cv.put(COL_ICON,icon);
cv.put(COL_NATIVEURL,nativeurl);
cv.put(COL_SEARCHURL,searchurl);
// uses the convenience insert method that builds the SQL
return mDB.insert(TBL_BOOKMARK,null,cv);
}
public ArrayList<Bookmark> getAllBookmarks() {
ArrayList<Bookmark> rv = new ArrayList<>();
Cursor csr = mDB.query(TBL_BOOKMARK,null,null,null,null,null, null);
while (csr.moveToNext()) {
Bookmark b = new Bookmark();
b.setId(csr.getString(csr.getColumnIndex(COL_ID)));
b.setName(csr.getString(csr.getColumnIndex(COl_NAME)));
b.setIcon(csr.getInt(csr.getColumnIndex(COL_ICON))); // Here I set the icon but I want to set icon from the saved SearchUrl.
b.setViewType(csr.getInt(csr.getColumnIndex(COl_NAME)));
b.setNativeUrl(csr.getString(csr.getColumnIndex(COL_NATIVEURL)));
b.setSearchUrl(csr.getString(csr.getColumnIndex(COL_SEARCHURL)));
rv.add(b);
}
return rv;
}
公共类活动ChangeBookmark扩展了AppCompatActivity{
private ArrayList listItems=new ArrayList（）；
私人回收站；
按钮保存书签，取消书签；
文本视图名称、url；
图像视图图标，mIcon；
编辑文本mName，mUrl，mID；
公共静态最终字符串Save\u Bookmark=“Save\u Bookmark”；
字符串Url，名称；
整数Id；
我的适配器我的适配器；
BookmarkDB BookmarkDB；
按钮Robotomedium removeBookmark，发送至主屏幕；
ArrayList ArrayList=新的ArrayList（）；
@凌驾
创建时受保护的void（@Nullable Bundle savedInstanceState）{
super.onCreate（savedInstanceState）；
setContentView（R.layout.activity\u change\u书签）；
saveBookmark=findviewbyd（R.id.btnSave）；
name=findviewbyd（R.id.tvnamedit）；
url=findviewbyd（R.id.tvURLEdit）；
recyclerView=findViewById（R.id.myRecyclerView）；
icon=findViewById（R.id.ivFavIcon）；
mName=findviewbyd（R.id.etnamedit）；
mUrl=findviewbyd（R.id.etURLEdit）；
sendToHomeScreen=findViewById（R.id.btnAddIconToDeviceScreen）；
name.setVisibility（View.GONE）；
setVisibility（View.GONE）；
bookmarkDB=newbookmarkdb（getApplicationContext（））；
Intent=getIntent（）；
myAdapter=新的myAdapter（getApplicationContext（），arrayList）；
Bundle extras=intent.getExtras（）；
如果（附加值！=null）{
Url=intent.getExtras（）.getString（“Url”）；
Name=intent.getExtras（）.getString（“名称”）；
Id=intent.getExtras（）.getInt（“Id”）；
位图位图=intent.getExtras（）.getParcelable（“图像”）；
mName.setText（名称）；
mUrl.setText（Url）；
icon.setImageBitmap（位图）；
removeBookmark.setOnClickListener（新视图.OnClickListener（）{
@凌驾
公共void onClick（视图v）{
bookmarkDB.deleteName（Id，Name）；
myAdapter.notifyDataSetChanged（）；
完成（）；
}
});
}
否则{
removeBookmark.setVisibility（View.GONE）；
sendToHomeScreen.setVisibility（View.GONE）；
icon.setImageResource（R.drawable.user\u书签）；
mName.setText（“”）；
mUrl.setText（“”）；
}
saveBookmark.setOnClickListener（新视图.OnClickListener（）{
@凌驾
公共void onClick（视图v）{
saveData（）；
myAdapter.notifyDataSetChanged（）；
完成（）；
}
});
公共void saveData（）{
随机r=新随机（）；
int低=14；
int高=100；
int结果=r.nextInt（高-低）+低；
bookmarkDB.addBookmark（结果，mName.getText（）.toString（），false，“https://www.google.com/s2/favicons?domain=“+mUrl.getText（）.toString（），mUrl.getText（）.toString（），”http:/“+mUrl.getText（）.toString（））；
}
}
书签数据库类
public class Bookmark {
String name, id, nativeUrl, searchUrl;
int icon;
int viewType;
public String getName() { return name; }
public void setName(String name) {
this.name = name;
}
public int getIcon() { return icon; }
public void setIcon(int icon) {
this.icon = icon;
}
public String getId(){
return id;
}
public void setId(String id) {
this.id = id;
}
public String getNativeUrl() {
return nativeUrl;
}
public void setNativeUrl(String nativeUrl) {
this.nativeUrl = nativeUrl;
}
public String getSearchUrl() {
return searchUrl;
}
public void setSearchUrl(String searchUrl) {
this.searchUrl = searchUrl;
}
public int getViewType() {
return viewType;
}
public void setViewType(int viewType) {
this.viewType = viewType;
}
@Override
public String toString() {
return "Bookmark{" +
"name='" + name + '\'' +
", icon='" + icon + '\'' +
", id='" + id + '\'' +
", nativeUrl='" + nativeUrl + '\'' +
", searchUrl='" + searchUrl + '\'' +
'}';
}
}
public class ActivityChangeBookmark extends AppCompatActivity {
private ArrayList<String> listItems = new ArrayList<String>();
private RecyclerView recyclerView;
Button saveBookmark, cancelBookmark;
TextView name, url;
ImageView icon, mIcon;
EditText mName, mUrl, mID;
public static final String Save_Bookmark = "Save_Bookmark";
String Url, Name;
Integer Id;
MyAdapter myAdapter;
BookmarkDB bookmarkDB;
ButtonRobotoMedium removeBookmark, sendToHomeScreen;
ArrayList<Bookmark> arrayList = new ArrayList<>();
@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_change_bookmark);
saveBookmark = findViewById(R.id.btnSave);
name = findViewById(R.id.tvNameEdit);
url = findViewById(R.id.tvURLEdit);
recyclerView = findViewById(R.id.myRecyclerView);
icon = findViewById(R.id.ivFavIcon);
mName = findViewById(R.id.etNameEdit);
mUrl = findViewById(R.id.etURLEdit);
sendToHomeScreen = findViewById(R.id.btnAddIconToDeviceScreen);
name.setVisibility(View.GONE);
url.setVisibility(View.GONE);
bookmarkDB = new BookmarkDB(getApplicationContext());
Intent intent = getIntent();
myAdapter = new MyAdapter(getApplicationContext(), arrayList);
Bundle extras = intent.getExtras();
if (extras != null) {
Url = intent.getExtras().getString("Url");
Name = intent.getExtras().getString("Name");
Id = intent.getExtras().getInt("ID");
Bitmap bitmap = intent.getExtras().getParcelable("Image");
mName.setText(Name);
mUrl.setText(Url);
icon.setImageBitmap(bitmap);
removeBookmark.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
bookmarkDB.deleteName(Id, Name);
myAdapter.notifyDataSetChanged();
finish();
}
});
}
else {
removeBookmark.setVisibility(View.GONE);
sendToHomeScreen.setVisibility(View.GONE);
icon.setImageResource(R.drawable.user_bookmark);
mName.setText("");
mUrl.setText("");
}
saveBookmark.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
saveData();
myAdapter.notifyDataSetChanged();
finish();
}
});
public void saveData() {
Random r = new Random();
int low = 14;
int high = 100;
int result = r.nextInt(high-low) + low;
bookmarkDB.addBookmark(result, mName.getText().toString(), false, "https://www.google.com/s2/favicons?domain=" + mUrl.getText().toString(), mUrl.getText().toString(), "http://" + mUrl.getText().toString());
}
}
public class BookmarkDB extends SQLiteOpenHelper {
public static final String DBNAME = "bookmarks.db"; // The name of the
database file
public static final int DBVERSION = 1; // The Database version
public static final String TBL_BOOKMARK = "bookmark";
public static final String COL_ID = BaseColumns._ID; // equates to _id
public static final String COl_NAME = "name";
public static final String COl_HIDDEN = "hidden";
public static final String COL_ICON = "icon";
public static final String COL_NATIVEURL = "nativeurl";
public static final String COL_SEARCHURL = "searchurl";
SQLiteDatabase mDB;
public BookmarkDB(Context context) {
super(context, DBNAME, null, DBVERSION);
mDB = this.getWritableDatabase();
}
@Override
public void onCreate(SQLiteDatabase db) {
// The SQL to be used to create the table
String crt_bookmark_tbl_sql = "CREATE TABLE IF NOT EXISTS " + TBL_BOOKMARK + "(" +
COL_ID + " INTEGER PRIMARY KEY AUTOINCREMENT, " +
COl_NAME + " TEXT, " +
COl_HIDDEN + " INTEGER, " +
COL_ICON + " TEXT, " +
COL_NATIVEURL + " TEXT," +
COL_SEARCHURL + " TEXT" +
")";
db.execSQL(crt_bookmark_tbl_sql); // CREATE THE TABLE
}
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
db.execSQL("DROP IF TABLE EXISTS " + DBNAME);
onCreate(db);
}
public long addBookmark(long id, String name, boolean hidden, String icon, String nativeurl, String searchurl) {
ContentValues cv = new ContentValues();
cv.put(COl_NAME,name);
cv.put(COl_HIDDEN,hidden);
cv.put(COL_ICON,icon);
cv.put(COL_NATIVEURL,nativeurl);
cv.put(COL_SEARCHURL,searchurl);
// uses the convenience insert method that builds the SQL
return mDB.insert(TBL_BOOKMARK,null,cv);
}
public ArrayList<Bookmark> getAllBookmarks() {
ArrayList<Bookmark> rv = new ArrayList<>();
Cursor csr = mDB.query(TBL_BOOKMARK,null,null,null,null,null, null);
while (csr.moveToNext()) {
Bookmark b = new Bookmark();
b.setId(csr.getString(csr.getColumnIndex(COL_ID)));
b.setName(csr.getString(csr.getColumnIndex(COl_NAME)));
b.setIcon(csr.getInt(csr.getColumnIndex(COL_ICON))); // Here I set the icon but I want to set icon from the saved SearchUrl.
b.setViewType(csr.getInt(csr.getColumnIndex(COl_NAME)));
b.setNativeUrl(csr.getString(csr.getColumnIndex(COL_NATIVEURL)));
b.setSearchUrl(csr.getString(csr.getColumnIndex(COL_SEARCHURL)));
rv.add(b);
}
return rv;
}
public类BookmarkDB扩展了SQLiteOpenHelper{
public static final String DBNAME=“bookmarks.db”；//对象的名称
数据库文件
public static final int DBVERSION=1；//数据库版本
公共静态最终字符串TBL_BOOKMARK=“BOOKMARK”；
public static final String COL_ID=BaseColumns.\u ID；//等于_ID
公共静态最终字符串COl_NAME=“NAME”；
公共静态最终字符串COl_HIDDEN=“HIDDEN”；
公共静态最终字符串COL_ICON=“ICON”；
公共静态最终字符串COL_NATIVEURL=“NATIVEURL”；
公共静态最终字符串COL_SEARCHURL=“SEARCHURL”；
sqlitemdb数据库；
公共书签数据库（上下文）{
super（上下文，DBNAME，null，DBVERSION）；
mDB=this.getWritableDatabase（）；
}
@凌驾
public void onCreate（SQLiteDatabase db）{
//用于创建表的SQL
字符串crt_bookmark_tbl_sql=“如果不存在创建表”+tbl_bookmark+”（“+
列ID+“整数主键自动递增，”+
列名称+文本，“+
COl_HIDDEN+“整数，”+
COL_图标+文本+
COL_NATIVEURL+“文本，”+
COL_SEARCHURL+“文本”+
")";
db.execSQL（crt_bookmark_tbl_sql）；//创建表
}
@凌驾
public void onUpgrade（SQLiteDatabase db，int-oldVersion，int-newVersion）{
db.execSQL（“如果表存在则删除”+DBNAME）；
onCreate（db）；
}
public long addBookmark（长id、字符串名称、布尔隐藏、字符串图标、字符串nativeurl、字符串搜索URL）{
ContentValues cv=新的ContentValues（）；
简历（姓名、姓名）；
cv.put（COl_隐藏，隐藏）；
cv.put（COL_图标，图标）；
cv.put（COL_NATIVEURL，NATIVEURL）；
cv.put（COL_SEARCHURL，SEARCHURL）；
//使用方便的insert方法生成SQL
返回mDB.insert（TBL_书签，null，cv）；
}
公共ArrayList getAllBookmarks（）{
ArrayList rv=新的ArrayList（）；
游标csr=mDB.query（TBL_书签，null，null，null，null，null，null