platform/android/MapboxGLAndroidSDKTestApp/src/main/java/com/mapbox/mapboxsdk/testapp/activity/camera/ScrollByActivity.java


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157

package com.mapbox.mapboxsdk.testapp.activity.camera;

import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.annotation.StringRes;
import android.support.design.widget.FloatingActionButton;
import android.support.v4.content.ContextCompat;
import android.support.v7.app.ActionBar;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.MenuItem;
import android.widget.SeekBar;
import android.widget.TextView;

import com.mapbox.mapboxsdk.camera.CameraUpdateFactory;
import com.mapbox.mapboxsdk.maps.MapView;
import com.mapbox.mapboxsdk.maps.MapboxMap;
import com.mapbox.mapboxsdk.maps.OnMapReadyCallback;
import com.mapbox.mapboxsdk.maps.UiSettings;
import com.mapbox.mapboxsdk.testapp.R;

/**
 * Test activity showcasing using the scrollBy Camera API by moving x,y pixels above Grenada, Spain.
 */
public class ScrollByActivity extends AppCompatActivity implements OnMapReadyCallback {

  public static final int MULTIPLIER_PER_PIXEL = 50;

  private MapView mapView;
  private MapboxMap mapboxMap;
  private SeekBar seekBarX;
  private SeekBar seekBarY;

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_scroll_by);

    Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
    setSupportActionBar(toolbar);

    ActionBar actionBar = getSupportActionBar();
    if (actionBar != null) {
      actionBar.setDisplayHomeAsUpEnabled(true);
      actionBar.setDisplayShowHomeEnabled(true);
    }

    seekBarX = (SeekBar) findViewById(R.id.seekbar_move_x);
    TextView textViewX = (TextView) findViewById(R.id.textview_x);
    seekBarX.setOnSeekBarChangeListener(new PixelBarChangeListener(textViewX, R.string.scrollby_x_value));

    seekBarY = (SeekBar) findViewById(R.id.seekbar_move_y);
    TextView textViewY = (TextView) findViewById(R.id.textview_y);
    seekBarY.setOnSeekBarChangeListener(new PixelBarChangeListener(textViewY, R.string.scrollby_y_value));

    mapView = (MapView) findViewById(R.id.mapView);
    mapView.setTag(true);
    mapView.onCreate(savedInstanceState);
    mapView.getMapAsync(this);
  }

  @Override
  public void onMapReady(MapboxMap map) {
    mapboxMap = map;
    UiSettings uiSettings = mapboxMap.getUiSettings();
    uiSettings.setLogoEnabled(false);
    uiSettings.setAttributionEnabled(false);

    FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
    fab.setColorFilter(ContextCompat.getColor(ScrollByActivity.this, R.color.primary));
    fab.setOnClickListener(view -> mapboxMap.easeCamera(CameraUpdateFactory.scrollBy(
      seekBarX.getProgress() * MULTIPLIER_PER_PIXEL,
      seekBarY.getProgress() * MULTIPLIER_PER_PIXEL)
    ));
  }

  @Override
  protected void onStart() {
    super.onStart();
    mapView.onStart();
  }

  @Override
  protected void onResume() {
    super.onResume();
    mapView.onResume();
  }

  @Override
  protected void onPause() {
    super.onPause();
    mapView.onPause();
  }

  @Override
  protected void onStop() {
    super.onStop();
    mapView.onStop();
  }

  @Override
  protected void onSaveInstanceState(Bundle outState) {
    super.onSaveInstanceState(outState);
    mapView.onSaveInstanceState(outState);
  }

  @Override
  protected void onDestroy() {
    super.onDestroy();
    mapView.onDestroy();
  }

  @Override
  public void onLowMemory() {
    super.onLowMemory();
    mapView.onLowMemory();
  }

  @Override
  public boolean onOptionsItemSelected(MenuItem item) {
    switch (item.getItemId()) {
      case android.R.id.home:
        onBackPressed();
        return true;
      default:
        return super.onOptionsItemSelected(item);
    }
  }

  private static class PixelBarChangeListener implements SeekBar.OnSeekBarChangeListener {

    @StringRes
    private int prefixTextResource;
    private TextView valueView;

    public PixelBarChangeListener(@NonNull TextView textView, @StringRes int textRes) {
      valueView = textView;
      prefixTextResource = textRes;
    }

    @Override
    public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
      int value = progress * ScrollByActivity.MULTIPLIER_PER_PIXEL;
      valueView.setText(String.format(seekBar.getResources().getString(prefixTextResource), value));
    }

    @Override
    public void onStartTrackingTouch(SeekBar seekBar) {

    }

    @Override
    public void onStopTrackingTouch(SeekBar seekBar) {

    }
  }
}