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我做了一個應用程序，到目前爲止我將捕獲的圖像存儲在數據庫中。然後我將它們分類並在不同的GridView中爲每個類別顯示它們。從每個gridView中選擇一個圖像後，我設法在不同的ImageView中顯示它們。現在我試圖將這些選擇的圖像保存在數據庫中，然後在ListView中顯示它們。問題是在列表中什麼也沒有。我想我的錯誤在於我正在使用圖像來保存它們的代碼部分。ANDROID - 將圖像從ImageView保存到數據庫
任何幫助？
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.view);
handler2 = new DatabaseHandler(getApplicationContext());
Intent i = getIntent();
ImageView im1 = (ImageView) findViewById(R.id.im1);
im1.setImageBitmap(BitmapFactory.decodeFile(i.getStringExtra("image1")));
ImageView im2 = (ImageView) findViewById(R.id.im2);
im2.setImageBitmap(BitmapFactory.decodeFile(i.getStringExtra("image2")));
ImageView im3 = (ImageView) findViewById(R.id.im3);
im3.setImageBitmap(BitmapFactory.decodeFile(i.getStringExtra("image3")));
ImageView im4 = (ImageView) findViewById(R.id.im4);
im4.setImageBitmap(BitmapFactory.decodeFile(i.getStringExtra("image4")));
ImageView im5 = (ImageView) findViewById(R.id.im5);
im5.setImageBitmap(BitmapFactory.decodeFile(i.getStringExtra("image5")));
ImageView im6 = (ImageView) findViewById(R.id.im6);
im6.setImageBitmap(BitmapFactory.decodeFile(i.getStringExtra("image6")));
ImageButton btn_save_outfit = (ImageButton)findViewById(R.id.btn_combine);
btn_save_outfit.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Outfits outfits = new Outfits();
outfits.setImage1(i1);
outfits.setImage2(i2);
outfits.setImage3(i3);
outfits.setImage4(i4);
outfits.setImage5(i5);
outfits.setImage6(i6);
Boolean added = handler2.addOutfit(outfits);
if(added){
Toast.makeText(getApplicationContext() , "Outfit added." , Toast.LENGTH_LONG).show();
String log = "Id: "+ outfits.getID()+" ,Image1: " + outfits.getImage1() + " ,Image2: " + outfits.getImage2()
+ ",Image3:" + outfits.getImage3() + ",Image4:" + outfits.getImage5() + ",Image6:" +outfits.getImage6();
Log.d("Image1: ", log);
}else{
Toast.makeText(getApplicationContext(), "Outfit not added. Please try again", Toast.LENGTH_LONG).show();
}
}});
}
}
Outfits.class
public class Outfits {
private int _id;
private String _image1;
private String _image2;
private String _image3;
private String _image4;
private String _image5;
private String _image6;
public Outfits(){
}
public Outfits(String image1, String image2, String image3, String image4, String image5 ,String image6){
this._image1 = image1;
this._image2 = image2;
this._image3 = image3;
this._image4 = image4;
this._image5 = image5;
this._image6 = image6;
}
// Id
public int getID(){
return _id;
}
public void setID(int id){
this._id = id;
}
// Image1
public String getImage1(){
return this._image1;
}
public void setImage1(String image1){
this._image1 = image1;
}
// Image2
public String getImage2(){
return this._image2;
}
public void setImage2(String image2){
this._image2 = image2;
}
// Image3
public String getImage3(){
return this._image3;
}
public void setImage3(String image3){this._image3 = image3;}
// Image4
public String getImage4(){
return this._image4;
}
public void setImage4(String image4){this._image4 = image4;
}
// Image5
public String getImage5(){
return this._image5;
}
public void setImage5(String image5){
this._image5 = image5;
}
// Image6
public String getImage6(){
return this._image6;
}
public void setImage6(String image6){this._image6 = image6;
}
}
Adapter.class
public class OutfitsAdapter extends BaseAdapter {
private List<Outfits> items;
private Context context;
private LayoutInflater inflater;
public OutfitsAdapter(Context _context, List<Outfits> _items){
inflater = LayoutInflater.from(_context);
this.items = _items;
this.context = _context;
}
@Override
public int getCount() {
return items.size();
}
@Override
public Object getItem(int position) {
return position;
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
Outfits outfits = items.get(position);
View view = convertView;
if (view == null) {
view = inflater.inflate(R.layout.outfit_item, null);
ImageView i1 = (ImageView) view.findViewById(R.id.image1);
ImageView i2 = (ImageView) view.findViewById(R.id.image2);
ImageView i3 = (ImageView) view.findViewById(R.id.image3);
ImageView i4 = (ImageView) view.findViewById(R.id.image4);
ImageView i5 = (ImageView) view.findViewById(R.id.image5);
ImageView i6 = (ImageView) view.findViewById(R.id.image6);
i1.setImageBitmap(BitmapFactory.decodeFile(outfits.getImage1()));
i2.setImageBitmap(BitmapFactory.decodeFile(outfits.getImage2()));
i3.setImageBitmap(BitmapFactory.decodeFile(outfits.getImage3()));
i4.setImageBitmap(BitmapFactory.decodeFile(outfits.getImage4()));
i5.setImageBitmap(BitmapFactory.decodeFile(outfits.getImage5()));
i6.setImageBitmap(BitmapFactory.decodeFile(outfits.getImage6()));
}
return view;
}
}
Database.class
public List<Outfits> readAllOutfits(){
SQLiteDatabase db = this.getWritableDatabase();
List<Outfits> outfits = new ArrayList<Outfits>();
Cursor cursor = db.query(SQLITE_TABLE_2, columns_2, null, null, null, null, null);
cursor.moveToFirst();
while (!cursor.isAfterLast()) {
Outfits out = new Outfits();
out.setID(Integer.parseInt(cursor.getString(0)));
out.setImage1(cursor.getString(1));
out.setImage2(cursor.getString(2));
out.setImage3(cursor.getString(3));
out.setImage4(cursor.getString(4));
out.setImage5(cursor.getString(5));
out.setImage6(cursor.getString(6));
cursor.moveToNext();
}
cursor.close();
return outfits;
}
而且隨着列表
public class CurrentOutfits extends Activity {
private List<Outfits> outfits;
private DatabaseHandler handler2;
ListView lv_outfits;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.current_outfits);
handler2 = new DatabaseHandler(getApplicationContext());
lv_outfits = (ListView) findViewById(R.id.outfits_list);
loadOutfits();
}
private void loadOutfits() {
outfits = handler2.readAllOutfits();
OutfitsAdapter adapter = new OutfitsAdapter(this, outfits);
lv_outfits.setAdapter(adapter);
for (Outfits o : outfits) {
String record = "ID=" + o.getID() + " | Category=" + o.getImage1() + " | " + o.getImage2();
Log.d("Record", record);
}
}
}
是的，它完全工作！非常感謝！！ – user5805577