0

我按照这个教程

再次在数据库中添加相同的图像 n 再次我想通过浏览图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这样

我在main.xml称为浏览按钮中添加了新按钮。并设置打开图库的功能,但如何将浏览图像上传到数据库?帮帮我,我想从画廊添加我自己的 img 如何使用 et 代码添加数据库我的画廊图片?

   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);
}
}
4

1 回答 1

0

不要尝试将图像保存在数据库中。将图像保存到外部存储中,并将它们的路径保存在数据库中。

于 2012-12-13T09:47:21.277 回答