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173 changes: 173 additions & 0 deletions
173
...KTestApp/src/main/java/com/mapbox/mapboxsdk/testapp/activity/style/StyleFileActivity.java
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package com.mapbox.mapboxsdk.testapp.activity.style; | ||
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import android.os.AsyncTask; | ||
import android.os.Bundle; | ||
import android.support.annotation.NonNull; | ||
import android.support.annotation.RawRes; | ||
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.util.Log; | ||
import android.view.MenuItem; | ||
import android.view.View; | ||
import android.widget.Toast; | ||
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import com.mapbox.mapboxsdk.maps.MapView; | ||
import com.mapbox.mapboxsdk.maps.MapboxMap; | ||
import com.mapbox.mapboxsdk.maps.OnMapReadyCallback; | ||
import com.mapbox.mapboxsdk.testapp.R; | ||
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import java.io.BufferedReader; | ||
import java.io.BufferedWriter; | ||
import java.io.File; | ||
import java.io.FileWriter; | ||
import java.io.IOException; | ||
import java.io.InputStream; | ||
import java.io.InputStreamReader; | ||
import java.io.Reader; | ||
import java.io.StringWriter; | ||
import java.io.Writer; | ||
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import static com.mapbox.mapboxsdk.style.layers.PropertyFactory.circleColor; | ||
import static com.mapbox.mapboxsdk.style.layers.PropertyFactory.circleRadius; | ||
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/** | ||
* Example on how to use a file:// resource for the style.json | ||
*/ | ||
public class StyleFileActivity extends AppCompatActivity { | ||
private static final String TAG = StyleFileActivity.class.getSimpleName(); | ||
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private MapboxMap mapboxMap; | ||
private MapView mapView; | ||
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@Override | ||
public void onCreate(Bundle savedInstanceState) { | ||
super.onCreate(savedInstanceState); | ||
setContentView(R.layout.activity_style_file); | ||
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Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar); | ||
setSupportActionBar(toolbar); | ||
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ActionBar actionBar = getSupportActionBar(); | ||
if (actionBar != null) { | ||
actionBar.setDisplayHomeAsUpEnabled(true); | ||
actionBar.setDisplayShowHomeEnabled(true); | ||
} | ||
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mapView = (MapView) findViewById(R.id.mapView); | ||
mapView.onCreate(savedInstanceState); | ||
mapView.getMapAsync(new OnMapReadyCallback() { | ||
@Override | ||
public void onMapReady(@NonNull final MapboxMap map) { | ||
mapboxMap = map; | ||
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FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab); | ||
fab.setColorFilter(ContextCompat.getColor(StyleFileActivity.this, R.color.primary)); | ||
fab.setOnClickListener(new View.OnClickListener() { | ||
@Override | ||
public void onClick(View view) { | ||
Log.i(TAG, "Loading style file"); | ||
new CreateStyleFileTask().execute(); | ||
} | ||
}); | ||
} | ||
}); | ||
} | ||
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/** | ||
* Task to write a style file to local disk and load it in the map view | ||
*/ | ||
private class CreateStyleFileTask extends AsyncTask<Void, Integer, Long> { | ||
private File cacheStyleFile; | ||
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@Override | ||
protected Long doInBackground(Void... params) { | ||
try { | ||
cacheStyleFile = File.createTempFile("my-", ".style.json"); | ||
cacheStyleFile.createNewFile(); | ||
Log.i(TAG, "Writing style file to: " + cacheStyleFile.getAbsolutePath()); | ||
writeToFile(cacheStyleFile, readRawResource(R.raw.local_style)); | ||
} catch (Exception e) { | ||
Toast.makeText(StyleFileActivity.this, "Could not create style file in cache dir", Toast.LENGTH_SHORT).show(); | ||
} | ||
return 1l; | ||
} | ||
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protected void onPostExecute(Long result) { | ||
//Actual file:// usage | ||
mapboxMap.setStyleUrl("file://" + cacheStyleFile.getAbsolutePath()); | ||
} | ||
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private String readRawResource(@RawRes int rawResource) throws IOException { | ||
InputStream is = getResources().openRawResource(rawResource); | ||
Writer writer = new StringWriter(); | ||
char[] buffer = new char[1024]; | ||
try { | ||
Reader reader = new BufferedReader(new InputStreamReader(is, "UTF-8")); | ||
int n; | ||
while ((n = reader.read(buffer)) != -1) { | ||
writer.write(buffer, 0, n); | ||
} | ||
} finally { | ||
is.close(); | ||
} | ||
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return writer.toString(); | ||
} | ||
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private void writeToFile(File file, String contents) throws IOException { | ||
BufferedWriter writer = null; | ||
try { | ||
writer = new BufferedWriter(new FileWriter(file)); | ||
writer.write(contents); | ||
} finally { | ||
if (writer != null) { | ||
writer.close(); | ||
} | ||
} | ||
} | ||
} | ||
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@Override | ||
public void onResume() { | ||
super.onResume(); | ||
mapView.onResume(); | ||
} | ||
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@Override | ||
public void onPause() { | ||
super.onPause(); | ||
mapView.onPause(); | ||
} | ||
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@Override | ||
public void onSaveInstanceState(Bundle outState) { | ||
super.onSaveInstanceState(outState); | ||
mapView.onSaveInstanceState(outState); | ||
} | ||
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@Override | ||
public void onLowMemory() { | ||
super.onLowMemory(); | ||
mapView.onLowMemory(); | ||
} | ||
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@Override | ||
public void onDestroy() { | ||
super.onDestroy(); | ||
mapView.onDestroy(); | ||
} | ||
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@Override | ||
public boolean onOptionsItemSelected(MenuItem item) { | ||
switch (item.getItemId()) { | ||
case android.R.id.home: | ||
onBackPressed(); | ||
return true; | ||
default: | ||
return super.onOptionsItemSelected(item); | ||
} | ||
} | ||
} |
36 changes: 36 additions & 0 deletions
36
platform/android/MapboxGLAndroidSDKTestApp/src/main/res/layout/activity_style_file.xml
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<?xml version="1.0" encoding="utf-8"?> | ||
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" | ||
xmlns:app="http://schemas.android.com/apk/res-auto" | ||
android:layout_width="match_parent" | ||
android:layout_height="match_parent" | ||
android:orientation="vertical"> | ||
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<android.support.v7.widget.Toolbar | ||
android:id="@+id/toolbar" | ||
android:layout_width="match_parent" | ||
android:layout_height="?attr/actionBarSize" | ||
android:background="@color/primary" | ||
android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar" /> | ||
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<com.mapbox.mapboxsdk.maps.MapView | ||
android:id="@id/mapView" | ||
android:layout_below="@id/toolbar" | ||
android:layout_width="match_parent" | ||
app:center_latitude="52.519003" | ||
app:center_longitude="13.400972" | ||
app:style_url="@string/style_mapbox_streets" | ||
app:zoom="16" | ||
android:layout_height="match_parent"/> | ||
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<android.support.design.widget.FloatingActionButton | ||
android:id="@id/fab" | ||
android:layout_width="wrap_content" | ||
android:layout_height="wrap_content" | ||
android:layout_alignParentBottom="true" | ||
android:layout_alignParentEnd="true" | ||
android:layout_alignParentRight="true" | ||
android:layout_margin="@dimen/fab_margin" | ||
android:src="@drawable/ic_add_24dp" | ||
app:backgroundTint="@android:color/white" /> | ||
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</RelativeLayout> |
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