Question

我遵循此tutorial

再次在数据库中添加相同的图像n我想通过浏览库添加我自己选择的新图像并上传并保存到数据库

代码的输出看起来像this

我在名为browsebutton的main.xml中添加了新按钮。和设置是打开图库的功能，但如何将浏览图像上传到数据库？帮我PLZ我想从画廊添加我自己的img如何做代码添加数据库我的画廊图像??

   import android.app.Activity;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.ListView;

 public class SQLiteDemoActivity extends Activity {
private static final int SELECT_PICTURE = 1;
ArrayList<Contact> imageArry = new ArrayList<Contact>();
ContactImageAdapter adapter;
Button BrowseButton;

 /** Called when the activity is first created. */
 @Override
 public void onCreate(Bundle savedInstanceState) {
 super.onCreate(savedInstanceState);
 setContentView(R.layout.main);

 DataBaseHandler db = new DataBaseHandler(this);
//get image from drawable
Bitmap image = BitmapFactory.decodeResource(getResources(),
R.drawable.facebook);


BrowseButton=(Button)findViewById(R.id.BrowseButton);



BrowseButton.setOnClickListener(new View.OnClickListener() {

@Override
public void onClick(View v) {
    // TODO Auto-generated method stub
     // in onCreate or any event where your want the user to
    // select a file
    Intent intent = new Intent();
    intent.setType("image/*");
    intent.setAction(Intent.ACTION_GET_CONTENT);
    startActivityForResult(Intent.createChooser(intent,
            "Select Picture"), SELECT_PICTURE);

 }
});




//convert bitmap to byte
 ByteArrayOutputStream stream = new ByteArrayOutputStream();
 image.compress(Bitmap.CompressFormat.JPEG, 100, stream);
 byte imageInByte[] = stream.toByteArray();
/**
* CRUD Operations
* */
//Inserting Contacts
Log.d("Insert: ", "Inserting ..");
db.addContact(new Contact("FaceBook", imageInByte));
//display main List view bcard and contact name

//Reading all contacts from database
List<Contact> contacts = db.getAllContacts();
for (Contact cn : contacts) {
String log = "ID:" + cn.getID() + " Name: " + cn.getName()
+ " ,Image: " + cn.getImage();

//Writing Contacts to log
Log.d("Result: ", log);
 //add contacts data in arrayList
imageArry.add(cn);

}
adapter = new ContactImageAdapter(this, R.layout.screen_list,
imageArry);
ListView dataList = (ListView) findViewById(R.id.list);
dataList.setAdapter(adapter);
}
}

Answer 1

请勿尝试在数据库中保存图像。将图像保存到外部存储器并将数据库中的路径保存到数据库中。

如何在浏览器的sqlite数据库中添加图像？

1 个答案: