[ VerbatimBOT @ 29.05.2014. 16:55 ] @
Pozdrav svima, Radim neke primere za Android, i dobijam ovu gresku, nemam pojma o cemu se radi. Na netu sam nasao da ce pomoci ako skinem neke pakete preko SDK Managera, probao sam i nije uspelo. Naime evo koda, vrlo jednostavno.. imam dve Activity klase, na prvoj stoji dugme koje otvara drugu, na drugoj se unosi ime u tekst polje, zatim klikom na dugme se ta Activity klasa zatvara i podatak se prenosi nazad. MainActivity.java (prva) Code: package com.example.usingactivities; import android.support.v7.app.ActionBarActivity; import android.support.v7.app.ActionBar; import android.support.v4.app.Fragment; import android.content.Intent; import android.os.Bundle; import android.view.LayoutInflater; import android.view.Menu; import android.view.MenuItem; import android.view.View; import android.view.ViewGroup; import android.widget.EditText; import android.widget.Toast; import android.os.Build; public class MainActivity extends ActionBarActivity { int requestCode = 1; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); if (savedInstanceState == null) { getSupportFragmentManager().beginTransaction() .add(R.id.container, new PlaceholderFragment()) .commit(); } } public void btnSetUserInfo_Click(View v){ //Toast.makeText(getBaseContext(), "Hello world!", Toast.LENGTH_SHORT).show(); startActivityForResult(new Intent(this, UserDetails.class), requestCode); } public void onActivityResult(int requestCode, int resultCode, Intent data){ if (requestCode == this.requestCode){ if (resultCode == RESULT_OK){ String name = data.getDataString(); EditText txt = (EditText)findViewById(R.id.txtUserInfo); txt.setText("Welcome back " + name + "!"); } } } @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.main, menu); return true; } @Override public boolean onOptionsItemSelected(MenuItem item) { // Handle action bar item clicks here. The action bar will // automatically handle clicks on the Home/Up button, so long // as you specify a parent activity in AndroidManifest.xml. int id = item.getItemId(); if (id == R.id.action_settings) { return true; } return super.onOptionsItemSelected(item); } /** * A placeholder fragment containing a simple view. */ public static class PlaceholderFragment extends Fragment { public PlaceholderFragment() { } @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { View rootView = inflater.inflate(R.layout.fragment_main, container, false); return rootView; } } } evo i druge UserDetails.java Code: package com.example.usingactivities; import android.app.Activity; import android.content.Intent; import android.net.Uri; import android.os.Bundle; import android.view.View; import android.widget.EditText; public class UserDetails extends Activity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_user_details); } public void btnSetUserInfo_Click(View v){ EditText txt = (EditText)findViewById(R.id.txtUserInput); Intent obj = new Intent(this, MainActivity.class); obj.setData(Uri.parse(txt.getText().toString())); setResult(RESULT_OK, obj); finish(); } } Svaka pomoc je dobrodosla. Hvala unapred! |