Search box to search marker (Google Map)

Question

I want to ask about android app that I develop using google map in my apps. I already make multi marker on my map (1323 data so 1323 marker). So the question is:

I want to make search box to find specific marker on my map. I dont know how to find. Is it can find using title or snippet in marker

c = myDbHelper.query("Landslide", null, null, null, null,null, null);
if(c.moveToFirst()) {
    do {
        String loc = c.getString(3);
        Double lat = c.getDouble(4);
        Double lng = c.getDouble(5);
        String date = c.getString(1);
        //Integer death = c.getInt(6);

        mMap.addMarker(new MarkerOptions()
            .position(new LatLng(lat, lng))
            .title(loc + "")
            .snippet("Latitude:" + lat + " " + "Longitude:" + lng + " " + "Date:" + date + "")
            .icon(BitmapDescriptorFactory.fromResource(R.drawable.red1)));
        } while (c.moveToNext());
    }
}

Thanks In advance who helping me, regards, Hafizul Reza

Answer 1

I gess your markers data are stored in SQLite on your device. You can try to add a search box such as EditText, in your layout xml :

<EditText android:id="@+id/edit_textt_d"  android:layout_width="wrap_content" android:layout_height="wrap_content"/>

Then implement then onChange :

    yourEditText = (EditText) findViewById(R.id.yourEditTextId);
    yourEditTextaddTextChangedListener(new TextWatcher() {
        @Override
        public void afterTextChanged(Editable s) {}
        @Override
        public void beforeTextChanged(CharSequence s, int start, int count, int after) {}
        @Override
        public void onTextChanged(CharSequence s, int start, int before, int count) {
            changeMarker(s)
        } 
 });

On each change you should : delete the current marker of your map, query only markers that match the search box value :

public void changeMarker(String searchString) {
    ...
    myGoogleMap.clear();
    c=myDbHelper.getReadableDatabase().rawQuery("SELECT * FROM marker WHERE marker.name LIKE '"+searchString+"%'");
    ...
}

And then add your marker back on the map as you did in your question. Hope this help...