我想分割数据，以便我可以在不同的textView
中显示它 正如我在图像数据中给出的那样需要显示到这些不同的textview中 我能够在一个文本视图中获取数据，但不能在多个文本视图中获取数据php代码：
<?php
require "init.php";
$user_name=$_POST["login_name"];
$user_pass=$_POST["login_pass"];
$sql = "SELECT name,user_name,PRN,cast,dob,admission_category,nationality,permnent_address,local_address,roll_no,class,sub_cast,birth_place,mobile_no,email,branch FROM user_info where user_name like '$user_name'";
$result = $conn->query($sql);
if ($result->num_rows > 0) {
// output data of each row
while($row = $result->fetch_assoc()) {
echo "name: " . $row["name"];
}
} else {[enter image description here][1]
echo "login failed try again";
}
$conn->close();
?>*
ImportFragment.java
@TargetApi(Build.VERSION_CODES.HONEYCOMB)
public class ImportFragment extends Fragment {
ImageView imageView2,imageView7;
SQLiteDatabase db;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
View myInflatedView = inflater.inflate(R.layout.fragment_import, container, false);
Intent i = getActivity().getIntent();
String name = i.getStringExtra("sey");
Toast.makeText(getActivity(), "welcome: " + name, Toast.LENGTH_LONG).show();
imageView2 = (ImageView) myInflatedView.findViewById(R.id.imageView2);
TextView textView=(TextView)myInflatedView.findViewById(R.id.textView7);
textView.setText(name);
db=this.getActivity().openOrCreateDatabase("tedt.db", Context.MODE_PRIVATE,null);
db.execSQL("create table if not exists tb (a blob)");
Cursor c=db.rawQuery("select * from tb",null);
getImage();
if(c.moveToNext())
{
byte[] image =c.getBlob(0);
Bitmap bmp= BitmapFactory.decodeByteArray(image,0,image.length);
imageView2.setImageBitmap(bmp);
Toast.makeText(getActivity(),"get success",Toast.LENGTH_SHORT).show();
}
Button button=(Button)myInflatedView.findViewById(R.id.button);
button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
FragmentManager fm = getFragmentManager();
fm.beginTransaction().replace(R.id.contentframe,new ExportFragment()).commit();
}
});
return myInflatedView;
}
public void getImage()
{
Cursor c=db.rawQuery("select * from tb",null);
if(c.moveToNext())
{
byte[] image =c.getBlob(0);
Bitmap bmp= BitmapFactory.decodeByteArray(image,0,image.length);
imageView2.setImageBitmap(bmp);
Toast.makeText(getActivity(),"get success",Toast.LENGTH_SHORT).show();
}
}
}
BackgroundTask
class BackgroundTask extends AsyncTask<String, Void, String> {
AlertDialog alertDialog;
TextView textView1;
Context ctx;
BackgroundTask(Context ctx)
{
this.textView1=textView1;
this.ctx=ctx;
}
@Override
protected void onPreExecute()
{
alertDialog=new AlertDialog.Builder(ctx).create();
alertDialog.setTitle("Login Information...");
}
@Override
protected void onProgressUpdate(Void... values) {
super.onProgressUpdate(values);
}
@Override
protected void onPostExecute(String result) {
if(result.equals("registration success")) {
Toast.makeText(ctx, result, Toast.LENGTH_LONG).show();
}
else
{
// alertDialog.setMessage(result);
// alertDialog.show();
Toast.makeText(ctx, result, Toast.LENGTH_LONG).show();
Intent intent=new Intent(ctx,drawer.class);
intent.putExtra("sey",result);
String a=result;
ctx.startActivity(intent);
}
}
@Override
protected String doInBackground(String... params) {
String reg_url="http://10.0.2.2/webapp/register.php";
String login_url="http://10.0.2.2/webapp/login.php";
String method=params[0];
if(method.equals("register"))
{
String name=params[1];
String user_name=params[2];
String user_pass=params[3];
try {
URL url=new URL(reg_url);
HttpURLConnection httpURLConnection=(HttpURLConnection)url.openConnection();
httpURLConnection.setRequestMethod("POST");
httpURLConnection.setDoOutput(true);
OutputStream os=httpURLConnection.getOutputStream();
BufferedWriter bufferedWriter=new BufferedWriter(new OutputStreamWriter(os,"UTF-8"));
String data= URLEncoder.encode("user","UTF-8")+ "="+URLEncoder.encode(name,"UTF-8")+"&"+
URLEncoder.encode("user_name","UTF-8")+ "="+URLEncoder.encode(user_name,"UTF-8")+"&"+
URLEncoder.encode("user_pass","UTF-8")+ "="+URLEncoder.encode(user_pass,"UTF-8");
bufferedWriter.write(data);
bufferedWriter.flush();
bufferedWriter.close();
os.close();
InputStream is=httpURLConnection.getInputStream();
is.close();
return "registration success";
}
catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
else if(method.equals("login"))
{
String login_name=params[1];
String login_pass=params[2];
try {
URL url=new URL(login_url);
HttpURLConnection httpURLConnection=(HttpURLConnection)url.openConnection();
httpURLConnection.setRequestMethod("POST");
httpURLConnection.setDoOutput(true);
httpURLConnection.setDoInput(true);
OutputStream outputStream=httpURLConnection.getOutputStream();
BufferedWriter bufferedWriter=new BufferedWriter(new OutputStreamWriter(outputStream,"UTF-8"));
String data=URLEncoder.encode("login_name","UTF-8")+"="+URLEncoder.encode(login_name,"UTF-8")+"&"+
URLEncoder.encode("login_pass","UTF-8")+"="+URLEncoder.encode(login_pass,"UTF-8");
bufferedWriter.write(data);
bufferedWriter.flush();
bufferedWriter.close();
outputStream.close();
InputStream inputStream=httpURLConnection.getInputStream();
BufferedReader bufferedReader=new BufferedReader(new InputStreamReader(inputStream,"iso-8859-1"));
String response="";
String line="";
while ((line=bufferedReader.readLine())!=null)
{
response+=line;
}
bufferedReader.close();
inputStream.close();
httpURLConnection.disconnect();
return response;
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
return null;
}
}
答案 0 :(得分：0)
如果数据长度和结构未知
您可以像以下一样显示它。
数据的结构应该类似于（XML，Json）
{ “名称”：“托马斯”， “时代”：12， “地址”：“伦敦” }
每个元素都应包含一个键，以便您可以使用键生成TextView（用于标签）。
但请记住，如果android中显示的某些数据没有任何自定义样式。布局不仅难看，而且难以理解。如果来自服务器的所有数据（包括服务器的项目ID或敏感信息）都显示在移动设备上，则可能容易受到攻击。为了最好地使用数据和您的安全，您应该逐个将数据提取到每个文本视图中（findViewById）。如果这个方法对你来说很麻烦，你可以告别它并使用android数据绑定（https://developer.android.com/topic/libraries/data-binding/index.html）。 但是，此库尚未与JDK 8兼容。使用前请三思而后行。