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私はput extraを使って他のクラスのデータを取得します。他のクラスからどのようにして経度と緯度の価値を得ることができますか？あなたは、文字列の形式ではないで値を送信ここで最初のアクティビティでを「バンドル」別のクラスからLatLngを取る方法は？
package com.example.khoir.emegency_service;
Bundle extras =getIntent().getExtras();
Double lat1=Double.valueOf(extras.getString("lt1"));
Double lg1=Double.valueOf(extras.getString("lg2"));
LatLng fromPosition = new LatLng(lat1, lg1);
LatLng toPosition = new LatLng(-7.8032857, 110.3738408);
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_maps);
SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager()
.findFragmentById(R.id.map);
mapFragment.getMapAsync((OnMapReadyCallback) this);
if (android.os.Build.VERSION.SDK_INT > 9) {
StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
StrictMode.setThreadPolicy(policy);
}
md = new GMapV2Direction();
mMap = ((MapFragment) getFragmentManager()
.findFragmentById(R.id.map)).getMap();
LatLng coordinates = new LatLng(-7.8032857, 110.3738408);
mMap.animateCamera(CameraUpdateFactory.newLatLngZoom(coordinates, 16));
mMap.addMarker(new MarkerOptions().position(fromPosition).title("Start"));
mMap.addMarker(new MarkerOptions().position(toPosition).title("End"));
Document doc = md.getDocument(fromPosition, toPosition, GMapV2Direction.MODE_WALKING);
ArrayList<LatLng> directionPoint = md.getDirection(doc);
PolylineOptions rectLine = new PolylineOptions().width(3).color(Color.RED);
for (int i = 0; i < directionPoint.size(); i++) {
rectLine.add(directionPoint.get(i));
}
mMap.addPolyline(rectLine);
mMap.getUiSettings().setZoomControlsEnabled(true);
if (ActivityCompat.checkSelfPermission(this, android.Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, android.Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
// TODO: Consider calling
// ActivityCompat#requestPermissions
// here to request the missing permissions, and then overriding
// public void onRequestPermissionsResult(int requestCode, String[] permissions,
// int[] grantResults)
// to handle the case where the user grants the permission. See the documentation
// for ActivityCompat#requestPermissions for more details.
return;
}
mMap.setMyLocationEnabled(true);
}
package com.example.khoir.emegency_service;
DialogInterface.OnClickListener listener;
@Override
public void onCreate(final Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Button go = (Button) findViewById(R.id.button1);
go.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
Intent i = new Intent(MainActivity.this, Main_Pemadam_Kebakaran.class);
startActivity(i);
}
});
Button kul = (Button) findViewById(R.id.button2);
kul.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
Intent i = new Intent(MainActivity.this, MainRumahSakit.class);
startActivity(i);
}
});
final Button maps = (Button) findViewById(R.id.button4);
maps.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
Intent i = new Intent(MainActivity.this, MapsActivity.class);
i.putExtra("lt1",""+"-7.8013823");
i.putExtra("lg1",""+"110.3647725");
startActivity(i);
}
});
Button peng = (Button) findViewById(R.id.button3);
peng.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
Intent i = new Intent(MainActivity.this, MainPolisi.class);
startActivity(i);
}
});
Button tent = (Button) findViewById(R.id.button5);
tent.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
Intent i = new Intent(MainActivity.this, Tentang.class);
startActivity(i);
}
});
Button twit= (Button) findViewById(R.id.btntwitter);
twit.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
Intent i = new Intent(MainActivity.this, twitter.class);
startActivity(i);
}
});
final LocationManager manager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
if (!manager.isProviderEnabled(LocationManager.GPS_PROVIDER)) {
final AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setMessage("Aplikasi Memerlukan Akses GPS, GPS Anda Belum Aktif, Buka Setting Dan Aktifkan GPS?")
.setCancelable(false)
.setPositiveButton("Ya", new DialogInterface.OnClickListener() {
public void onClick(@SuppressWarnings("unused") final DialogInterface dialog, @SuppressWarnings("unused") final int id) {
startActivity(new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS));
}
})
.setNegativeButton("Tidak", new DialogInterface.OnClickListener() {
public void onClick(final DialogInterface dialog, @SuppressWarnings("unused") final int id) {
dialog.cancel();
}
});
final AlertDialog alert = builder.create();
alert.show();
} else {
Toast.makeText(getApplicationContext(), "GPS Sudah Aktif", Toast.LENGTH_LONG).show();
}
}
public boolean onKeyDown(int keyCode, KeyEvent event) {
//jika tombol BACK ditekan
if (keyCode == KeyEvent.KEYCODE_BACK) {
Keluar();
}
return super.onKeyDown(keyCode, event);
}
//method untuk keluar aplikasi menggunakan dialog terlebih dahulu
private void Keluar() {
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setMessage("Apakah Anda Yakin Ingin Keluar?");
builder.setCancelable(false);//tombol BACK tidak bisa tekan
//Membuat listener untuk tombol DIALOG
listener = new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
if (which == DialogInterface.BUTTON_POSITIVE) {
finish(); //keluar aplikasi
} else if (which == DialogInterface.BUTTON_NEGATIVE) {
dialog.cancel(); //batal keluar
}
}
};
//menerapkan listener pada tombol ya dan tidak
builder.setPositiveButton("Ya", listener);
builder.setNegativeButton("Tidak", listener);
builder.show(); //menampilkan dialog
}
。 maps.setOnClickListener（新View.OnClickListener（）{ ます。public void onClickの（ビューV）{ 意向I =新しいテント（MainActivity.this、MapsActivity.class）; i.putExtra（ "LT1"、」 "+" - 7.8013823 "）; i.putExtra（" LG1" 、 "" + "110.3647725"）; startActivity（I）; }}）。 –