package org.osmdroid.samplefragments.cache;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.os.Bundle;
import android.text.Editable;
import android.text.TextWatcher;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;
import android.widget.SeekBar;
import android.widget.SeekBar.OnSeekBarChangeListener;
import org.osmdroid.R;
import org.osmdroid.samplefragments.BaseSampleFragment;
import org.osmdroid.tileprovider.cachemanager.CacheManager;
import org.osmdroid.util.BoundingBox;
import org.osmdroid.util.BoundingBoxE6;
import org.osmdroid.util.GeoPoint;
import org.osmdroid.views.MapView;
/**
* Sample for using the cache manager to download tiles on screen
* Created by alex on 2/21/16.
*/
public class SampleCacheDownloader extends BaseSampleFragment implements View.OnClickListener, OnSeekBarChangeListener, TextWatcher {
@Override
public String getSampleTitle() {
return "Cache Manager";
}
Button btnCache,executeJob;
SeekBar zoom_min;
SeekBar zoom_max;
EditText cache_north, cache_south, cache_east,cache_west;
TextView cache_estimate;
CacheManager mgr;
AlertDialog downloadPrompt=null;
AlertDialog alertDialog=null;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View root = inflater.inflate(R.layout.sample_cachemgr, container,false);
setHasOptionsMenu(false);//prevent tile source changes
mMapView = (MapView) root.findViewById(R.id.mapview);
btnCache = (Button) root.findViewById(R.id.btnCache);
btnCache.setOnClickListener(this);
mgr = new CacheManager(mMapView);
return root;
}
@Override
public void addOverlays() {
}
@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.executeJob:
updateEstimate(true);
break;
case R.id.btnCache:
showCacheManagerDialog();
break;
}
}
private void showCacheManagerDialog(){
AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(
getActivity());
// set title
alertDialogBuilder.setTitle(R.string.cache_manager);
//.setMessage(R.string.cache_manager_description);
// set dialog message
alertDialogBuilder.setItems(new CharSequence[]{
getResources().getString(R.string.cache_current_size),
getResources().getString(R.string.cache_download),
getResources().getString(R.string.cancel)
}, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
switch (which){
case 0:
showCurrentCacheInfo();
break;
case 1:
downloadJobAlert();
default:
dialog.dismiss();
break;
}
}
}
);
// create alert dialog
alertDialog = alertDialogBuilder.create();
// show it
alertDialog.show();
//mgr.possibleTilesInArea(mMapView.getBoundingBox(), 0, 18);
// mgr.
}
private void downloadJobAlert() {
//prompt for input params
AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
View view = View.inflate(getActivity(), R.layout.sample_cachemgr_input, null);
BoundingBox boundingBox = mMapView.getBoundingBox();
zoom_max=(SeekBar) view.findViewById(R.id.slider_zoom_max);
zoom_max.setMax(mMapView.getMaxZoomLevel());
zoom_max.setOnSeekBarChangeListener(SampleCacheDownloader.this);
zoom_min=(SeekBar) view.findViewById(R.id.slider_zoom_min);
zoom_min.setMax(mMapView.getMaxZoomLevel());
zoom_min.setProgress(mMapView.getMinZoomLevel());
zoom_min.setOnSeekBarChangeListener(SampleCacheDownloader.this);
cache_east= (EditText) view.findViewById(R.id.cache_east);
cache_east.setText(boundingBox.getLonEast() +"");
cache_north= (EditText) view.findViewById(R.id.cache_north);
cache_north.setText(boundingBox.getLatNorth() +"");
cache_south= (EditText) view.findViewById(R.id.cache_south);
cache_south.setText(boundingBox.getLatSouth() +"");
cache_west= (EditText) view.findViewById(R.id.cache_west);
cache_west.setText(boundingBox.getLonWest() +"");
cache_estimate = (TextView) view.findViewById(R.id.cache_estimate);
//change listeners for both validation and to trigger the download estimation
cache_east.addTextChangedListener((TextWatcher) this);
cache_north.addTextChangedListener((TextWatcher) this);
cache_south.addTextChangedListener((TextWatcher) this);
cache_west.addTextChangedListener((TextWatcher) this);
executeJob= (Button) view.findViewById(R.id.executeJob);
executeJob.setOnClickListener(this);
builder.setView(view);
builder.setCancelable(true);
builder.setOnCancelListener(new DialogInterface.OnCancelListener() {
@Override
public void onCancel(DialogInterface dialog) {
cache_east=null;
cache_south=null;
cache_estimate=null;
cache_north=null;
cache_west=null;
executeJob=null;
zoom_min=null;
zoom_max=null;
}
});
downloadPrompt=builder.create();
downloadPrompt.show();
}
/**
* if true, start the job
* if false, just update the dialog box
*/
private void updateEstimate(boolean startJob) {
try {
if (cache_east != null &&
cache_west != null &&
cache_north != null &&
cache_south != null &&
zoom_max != null &&
zoom_min != null) {
double n = Double.parseDouble(cache_north.getText().toString());
double s = Double.parseDouble(cache_south.getText().toString());
double e = Double.parseDouble(cache_east.getText().toString());
double w = Double.parseDouble(cache_west.getText().toString());
int zoommin = zoom_min.getProgress();
int zoommax = zoom_max.getProgress();
//nesw
BoundingBox bb= new BoundingBox(n, e, s, w);
int tilecount = mgr.possibleTilesInArea(bb, zoommin, zoommax);
cache_estimate.setText(tilecount + " tiles");
if (startJob)
{
if ( downloadPrompt!=null) {
downloadPrompt.dismiss();
downloadPrompt=null;
}
//this triggers the download
mgr.downloadAreaAsync(getActivity(), bb, zoommin, zoommax, new CacheManager.CacheManagerCallback() {
@Override
public void onTaskComplete() {
Toast.makeText(getActivity(), "Download complete!", Toast.LENGTH_LONG).show();
}
@Override
public void onTaskFailed(int errors) {
Toast.makeText(getActivity(), "Download complete with " + errors + " errors", Toast.LENGTH_LONG).show();
}
@Override
public void updateProgress(int progress, int currentZoomLevel, int zoomMin, int zoomMax) {
//NOOP since we are using the build in UI
}
@Override
public void downloadStarted() {
//NOOP since we are using the build in UI
}
@Override
public void setPossibleTilesInArea(int total) {
//NOOP since we are using the build in UI
}
});
}
}
}catch (Exception ex){
ex.printStackTrace();
}
}
private void showCurrentCacheInfo() {
Toast.makeText(getActivity(), "Calculating..." ,Toast.LENGTH_SHORT).show();
new Thread(new Runnable() {
@Override
public void run() {
final AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(
getActivity());
// set title
alertDialogBuilder.setTitle(R.string.cache_manager)
.setMessage("Cache Capacity (bytes): " + mgr.cacheCapacity() + "\n"+
"Cache Usage (bytes): " + mgr.currentCacheUsage());
// set dialog message
alertDialogBuilder.setItems(new CharSequence[]{
getResources().getString(R.string.cancel)
}, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
}
}
);
getActivity().runOnUiThread(new Runnable() {
@Override
public void run() {
// show it
// create alert dialog
final AlertDialog alertDialog = alertDialogBuilder.create();
alertDialog.show();
}
});
}
}).start();
}
@Override
public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
updateEstimate(false);
}
@Override
public void onStartTrackingTouch(SeekBar seekBar) {
}
@Override
public void onStopTrackingTouch(SeekBar seekBar) {
}
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
updateEstimate(false);
}
@Override
public void afterTextChanged(Editable s) {
}
@Override
public void onPause(){
super.onPause();
if (alertDialog!=null && alertDialog.isShowing()){
alertDialog.dismiss();
}
if (downloadPrompt!=null && downloadPrompt.isShowing()){
downloadPrompt.dismiss();
}
}
@Override
public void runTestProcedures(){
}
}