如何从android中的数据库中获取可编辑的文本值

Question

我从数据库中获取文本并附加到编辑text.it显示edittext.now中的所有文本我正在更改editext中的一些文本。我希望我在editext中更改了我希望打印的值

             this my listview code
                JSONArray json = jArray.getJSONArray("mainmenu");
        list = (ListView) findViewById(R.id.mainmenulist);
        adapter = new EditMainMenulistview(this, json);
        list.setAdapter(adapter);(here i can pass json array to EditMainMenulistview.java)

Menuoption

                 public boolean onCreateOptionsMenu(Menu menu) {
    // TODO Auto-generated method stub
    MenuInflater inflater=getMenuInflater();
    inflater.inflate(R.menu.menu, menu);
    return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
    // TODO Auto-generated method stub
    switch (item.getItemId()) {
    case R.id.text:
        String gou=adapter.edittext.toString();//here only i want print all editext names i can change
        System.out.println(gou);
        break;

    default:
        break;
    }
    return true;
}

EditMainMenulistview.java

        public class EditMainMenulistview extends BaseAdapter {
protected static Context Context = null;
int i;
public String editnewmainmenu, menuname,edittext;
String qrimage;
Bitmap bmp, resizedbitmap;
Bitmap[] bmps;
Activity activity = null;
private LayoutInflater inflater;

private ImageView[] mImages;
String[] itemimage;
TextView[] tv;
String itemname, itemcode;
public String[] itemnames, itemcodes;
HashMap<String, String> map = new HashMap<String, String>();

public EditMainMenulistview(Context context, JSONArray imageArrayJson) {
    Context = context;
    // inflater =
    // (LayoutInflater)activity.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
    // imageLoader=new ImageLoader(activity);
    inflater = LayoutInflater.from(context);
    this.mImages = new ImageView[imageArrayJson.length()];
    this.bmps = new Bitmap[imageArrayJson.length()];
    this.itemnames = new String[imageArrayJson.length()];
    this.itemcodes = new String[imageArrayJson.length()];

    try {

        for (i = 0; i < imageArrayJson.length(); i++) {
            JSONObject image = imageArrayJson.getJSONObject(i);
            qrimage = image.getString("menuimage");
            itemname = image.getString("menuname");
            itemcode = image.getString("menucode");
            itemnames[i] = itemname;
            itemcodes[i] = itemcode;

            byte[] qrimageBytes = Base64.decode(qrimage.getBytes());

            bmp = BitmapFactory.decodeByteArray(qrimageBytes, 0,
                    qrimageBytes.length);
            int width = 100;
            int height = 100;
            resizedbitmap = Bitmap.createScaledBitmap(bmp, width, height,
                    true);
            bmps[i] = bmp;

            mImages[i] = new ImageView(context);
            mImages[i].setImageBitmap(resizedbitmap);

            mImages[i].setScaleType(ImageView.ScaleType.FIT_START);

            // tv[i].setText(itemname);
        }
        System.out.println(itemnames[i]);
        System.out.println(map);

    } catch (Exception e) {
        // TODO: handle exception
    }
}

public int getCount() {
    return mImages.length;
}

public Object getItem(int position) {
    return position;
}

public long getItemId(int position) {
    return position;
}

public View getView(final int position, View convertView, ViewGroup parent) {

    View vi = convertView;

    vi = inflater.inflate(R.layout.editmainmenulist, null);

    EditText text = (EditText) vi.findViewById(R.id.editmaimenu);
    ImageView image = (ImageView) vi.findViewById(R.id.menuimage);


    image.setImageBitmap(bmps[position]);

    text.append(itemnames[position]);
     edittext = text.getText().toString();
    System.out.println(edittext);
    //Toast.makeText(Context, edittext, Toast.LENGTH_LONG).show();

    return vi;

}

   }

上面的鳕鱼我可以附加所有数据库项目名来编辑text.now我可以更改编辑文本中的一些项目名称。我更改了项目名称我单击菜单选项它打印所有更改的编辑文本值

Answer 1

我不确定你真正想要的是什么。

This could be of some help:

  

如何从edittext自定义列表视图中获取可编辑的更改值并存储在android

中的数组中

View vi = convertView;

vi = inflater.inflate(R.layout.editmainmenulist, null);

EditText text = (EditText) vi.findViewById(R.id.editmaimenu);
text.append(itemnames[position]);//here i append so many itemnames append to edittext

     

调用此方法是为了在 s 中通知您 count 个字符   从 start 开始，刚刚替换了之前长度的旧文本。

mEditText.addTextChangedListener(new TextWatcher() {
    public void onTextChanged(CharSequence s, int start, int before,
            int count) {
    }

    @Override
    public void afterTextChanged(Editable s) {
    }

    @Override
    public void beforeTextChanged(CharSequence s, int start, int count,
        int after) {
    }
});