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copied!<p>First thing you need to do is the class of OnClickListener should be as following:- </p> <pre><code> public void onCreate(Bundle savedInstanceState){ Button btn_find = (Button) findViewById(R.id.btn_find); btn_find.setOnClickListener(findClickListener); } OnClickListener findClickListener = new OnClickListener() { @Override public void onClick(View v) { // Getting reference to EditText to get the user input location EditText etLocation = (EditText) findViewById(R.id.et_location); // Getting user input location String location = etLocation.getText().toString(); if(location!=null && !location.equals("")){ new GeocoderTask().execute(location); } } }; </code></pre> <p>check this out and try to clean your projects ...!!!!</p> <p>use your layout as following:-</p> <pre><code><RelativeLayout android:layout_width="fill_parent" android:layout_height="wrap_content" android:orientation="horizontal" > <Button android:id="@+id/btn_find" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@string/str_btn_find" android:layout_alignParentRight="true" /> <EditText android:id="@+id/et_location" android:layout_width="fill_parent" android:layout_height="wrap_content" android:inputType="text" android:hint="@string/hnt_et_location" android:layout_toLeftOf="@id/btn_find" /> <com.google.android.maps.MapView android:id="@+id/map_view" android:layout_width="fill_parent" android:layout_height="wrap_content" android:apiKey="02XkocQETlvu36mzmDnwYr-A4GTX5mENmESOG8A" android:clickable="true" /> </RelativeLayout> </code></pre> <p>and check it out...!!!!</p>

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