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I have some textview in my application and want to check whether the properties of text on my textview has a value or null. then i want to display a toast if the value on my textview null but the toast is not running as it should this is my code : public class brekeleV2 extends Activity { static Context context; brekeleV2Model r = new brekeleV2Model(); private EditText jalan, kota, postal; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); context = getApplicationContext(); Button go = (Button)findViewById(R.id.go); go.setOnClickListener(onGo); Button reset = (Button)findViewById(R.id.reset); reset.setOnClickListener(onRes); jalan =(EditText)findViewById(R.id.jalan); kota =(EditText)findViewById(R.id.kota); postal =(EditText)findViewById(R.id.post); jalan.setText(null); kota.setText(null); postal.setText(null); } and this is the onClick method code: private View.OnClickListener onGo=new View.OnClickListener() { public void onClick(View v) { if (jalan.getText()!= null && kota.getText()!=null){ switch(v.getId()){ case R.id.go: Intent maps = new Intent(); maps.setClassName("com.openit.brekele", "com.openit.brekele.brekeleV2Nav"); brekeleV2Nav.putLatLong(lat, lon); startActivity(maps); break; } }else{ Toast msg = Toast.makeText(brekeleV2.this, "Lengkapi Data", Toast.LENGTH_LONG); msg.setGravity(Gravity.CENTER, msg.getXOffset() / 2, msg.getYOffset() / 2); msg.show(); }

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