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POhow to refresh the linear layout view after deleting an element
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  1. POhow to refresh the linear layout view after deleting an element
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    copied!<p>I have a simple app, in one activity I take name and date of birth. I store it in the database. and in the main activity I have linearlayout which will show all the names.</p> <p>When I click on any of the name in the main activity, it should delete that name from the database and also refresh the view. </p> <p>I am able to delete the entry from database, but my linear layout view is not being updated. Can some one pls help.</p> <p>public class child extends Activity { private Intent intent; private LinearLayout layout; private LayoutInflater linflater; private int i =0; private Cursor cr;</p> <pre><code>/** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.child); layout = (LinearLayout)findViewById(R.id.layout); Button addBtn = (Button)findViewById(R.id.AddButton); Button remBtn = (Button)findViewById(R.id.RemoveButton); intent = new Intent(this,login.class); layout = (LinearLayout) findViewById(R.id.mylayout1); linflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE); //Check the database if there are any entries available. If available, then //list them on the main screen final myDBAdapter mydb = new myDBAdapter(getApplicationContext()); mydb.open(); cr = mydb.GetMyData(); if(cr.getCount()&gt;0) { cr.moveToFirst(); for (int i=0;i&lt;cr.getCount();i++) { cr.moveToPosition(i); buildList(cr.getString(1),cr.getString(2)); } } //Start the login activity which will return the newly added baby name addBtn.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { startActivityForResult(intent, 1001); } }); //Remove all the entries from Database remBtn.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { if(cr.getCount()&gt;0) { cr.moveToFirst(); for (int i=0;i&lt;cr.getCount();i++) { Toast.makeText(getApplicationContext(), cr.getString(1), Toast.LENGTH_LONG).show(); mydb.RemoveEntry(cr.getString(1)); cr.moveToPosition(i); } } } }); mydb.close(); } private void buildList(final String bname,String bsex) { final View customView = linflater.inflate(R.layout.child_view, null); TextView tv = (TextView) customView.findViewById(R.id.TextView01); //tv.setId(i); tv.setText(bname); tv.setTextColor(getResources().getColor(R.color.black)); tv.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { myDBAdapter mydb = new myDBAdapter(getApplicationContext()); mydb.open(); if (mydb.RemoveEntry(bname)&gt;0) { Toast.makeText(getApplicationContext(), "Row deleted", Toast.LENGTH_LONG).show(); </code></pre> <p>////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// WHAT IS REQUIRED HERE TO UPDATE THE VIEW??? //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////</p> <pre><code> } else { Toast.makeText(getApplicationContext(), "Row not deleted", Toast.LENGTH_LONG).show(); } } }); layout.addView(customView); } @Override protected void onActivityResult(int requestCode, int resultCode, Intent data){ if(requestCode == 1001) { if(resultCode == RESULT_OK) { Bundle extras = data.getExtras(); buildList(extras.getString("bname"),extras.getString("bsex")); } } } </code></pre> <p>}</p>
 

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