Android fragments 片段之间的导航问题
您好，我的back buttom有问题，我有一个主抽屉打开我的主片段，每次我更改我的片段时，我称为addToBackStack（null）。当我在第二个片段上并在抽屉上选择First选项时，导航抽屉有问题，片段正确显示，但之后我按下back buttom，我得到： 01-24 18:40:16.5221825-12825/？E/AndroidRuntime:致命异常：主 进程：ar.com.taxiexpress.taxiexpress，PID:12825 android.view.InflateException:二进制XML文件行#6:膨胀类片段时出错 位于android.view.LayoutInflater.createViewFromTag（LayoutInflater.java:713） 位于android.view.LayoutInflater.rInflate（LayoutInflater.java:755） 在android.view.LayoutInflater.inflate（LayoutInflater.java:492） 在android.view.LayoutInflater.inflate（LayoutInflater.java:397） 位于ar.com.taxiexpress.taxiexpress.MapaChofer.onCreateView（MapaChofer.java:80） 位于android.support.v4.app.Fragment.performCreateView（Fragment.java:1962） 位于android.support.v4.app.FragmentManagerImpl.moveToState（FragmentManager.java:1067） 在android.support.v4.app.FragmentManagerImpl.moveToState（FragmentManager.java:1248）上 这是我的密码： 主抽屉：Android fragments 片段之间的导航问题,android-fragments,navigation,onbackpressed,Android Fragments,Navigation,Onbackpressed,您好，我的back buttom有问题，我有一个主抽屉打开我的主片段，每次我更改我的片段时，我称为addToBackStack（null）。当我在第二个片段上并在抽屉上选择First选项时，导航抽屉有问题，片段正确显示，但之后我按下back buttom，我得到： 01-24 18:40:16.5221825-12825/？E/AndroidRuntime:致命异常：主 进程：ar.com.taxiexpress.taxiexpress，PID:12825 android.view.Inflat
public class DrawerPrincipal extends AppCompatActivity
implements NavigationView.OnNavigationItemSelectedListener,FragmentoPrincipalUsuario.OnFragmentInteractionListener {
private ParseFile mPrueba;
private Uri url;
private ImageView imagen;
SharedPreferences sharedPref;
SharedPreferences.Editor loginStateEditor ;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_drawer_principal);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
ParseUser usuario= ParseUser.getCurrentUser();
if(usuario==null){
Intent intento=new Intent(this,ActividadLogin.class);
intento.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
intento.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK);
startActivity(intento);
}
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(
this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
drawer.setDrawerListener(toggle);
toggle.syncState();
NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
navigationView.setNavigationItemSelectedListener(this);
View hView = navigationView.inflateHeaderView(R.layout.nav_header_drawer_principal);
final ImageView imgvw = (ImageView)hView.findViewById(R.id.imagenPerfil);
final TextView tv = (TextView)hView.findViewById(R.id.nombreUsuarioV);
//Picasso.with(getBaseContext()).load(url.toString()).into(imgvw);
tv.setText("new text");
ParseQuery<ParseUser> query2 = ParseUser.getQuery();
query2.whereEqualTo("username","gaspar@gmail.com");
query2.findInBackground(new FindCallback<ParseUser>() {
public void done(List<ParseUser> usuario, ParseException e) {
if (e == null) {
mPrueba = usuario.get(0).getParseFile("foto");
tv.setText(usuario.get(0).getUsername().toString());
url = Uri.parse(mPrueba.getUrl());
Picasso.with(getBaseContext()).load(url.toString()).transform(new RoundedTransformation(300, 4)).into(imgvw);
} else {
// Something went wrong.
}
}
});
//fragmento del chofer
Fragment fragmento;
fragmento = new FragmentoPrincipalChofer();
getSupportFragmentManager().beginTransaction()
.replace(R.id.content_main, fragmento)
.commit();
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.pantalla_principal_usuario, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
@SuppressWarnings("StatementWithEmptyBody")
@Override
public boolean onNavigationItemSelected(MenuItem item) {
// Handle navigation view item clicks here.
int id = item.getItemId();
if (id == R.id.cuenta) {
Fragment fragmento;
fragmento = new OpcionDrawerUsuario();
getSupportFragmentManager().beginTransaction()
.replace(R.id.content_main, fragmento)
.addToBackStack(null)
.commit();
} else if (id == R.id.historial_viajes) {
Fragment fragmento;
fragmento = new FragmentoViajesAcumulados();
getSupportFragmentManager().beginTransaction()
.replace(R.id.content_main, fragmento)
.commit();
} else if (id == R.id.contacto) {
String emailAdress[] = {"gastondelacruz@gmail.com"};
Intent email= new Intent(Intent.ACTION_SEND);
email.putExtra(Intent.EXTRA_EMAIL,emailAdress);
email.putExtra(Intent.EXTRA_SUBJECT,"Pon aqui el motivo de tu mail");
email.setType("text/plain");
email.putExtra(Intent.EXTRA_TEXT,"Su mensaje");
startActivity(email);
} else if (id == R.id.compartir) {
String texto="https://www.google.com.ar/?gfe_rd=cr&ei=9JuBVvmcGanX8gejsK_4CA&gws_rd=ssl";
Intent intento= new Intent();
intento.setAction(Intent.ACTION_SEND);
intento.putExtra(Intent.EXTRA_TEXT, texto);
intento.setType("text/plain");
startActivity(intento);
} else if (id == R.id.version) {
String prueba="aceptar";
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle("prueba") //
.setMessage("Esta es una prueba todavia no poseo el numero de version del producto") //
.setPositiveButton(prueba, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
// TODO
dialog.dismiss();
}
}); //
builder.show();
} else if (id == R.id.salir) {
finish();
}
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
drawer.closeDrawer(GravityCompat.START);
return true;
}
公共类DroperPrincipal扩展了AppCompative活动
实现NavigationView.OnNavigationItemSelectedListener、FragmentOprincipalUsario.OnFragmentInteractionListener{
私人文件mPrueba；
私有uriurl；
私有ImageView imagen；
SharedPreferences sharedPref；
SharedReferences.Editor登录安装编辑器；
@凌驾
创建时受保护的void（Bundle savedInstanceState）{
super.onCreate（savedInstanceState）；
setContentView（R.layout.activity\u drawer\u principal）；
Toolbar Toolbar=（Toolbar）findViewById（R.id.Toolbar）；
设置支持操作栏（工具栏）；
ParseUser usuario=ParseUser.getCurrentUser（）；
if（usuario==null）{
Intent intento=新的Intent（这是ActividadLogin.class）；
intento.addFlags（Intent.FLAG\u活动\u新任务）；
intento.addFlags（Intent.FLAG\u活动\u清除\u任务）；
星触觉；
}
抽屉布局抽屉=（抽屉布局）findViewById（R.id.抽屉布局）；
ActionBarDrawerToggle切换=新建ActionBarDrawerToggle(
这，抽屉，工具栏，R.string.navigation\u drawer\u open，R.string.navigation\u drawer\u close）；
抽屉。设置抽屉定位器（开关）；
toggle.syncState（）；
NavigationView NavigationView=（NavigationView）findViewById（R.id.nav_视图）；
navigationView.setNavigationItemSelectedListener（此）；
视图hView=导航视图。充气头视图（右布局。导航头/抽屉/主体）；
最终ImageView imgvw=（ImageView）hView.findViewById（R.id.imagenPerfil）；
最终文本视图tv=（文本视图）hView.findViewById（R.id.nombreUsuarioV）；
//Picasso.with（getBaseContext（））.load（url.toString（））.into（imgvw）；
tv.setText（“新文本”）；
ParseQuery query2=ParseUser.getQuery（）；
查询2.whereEqualTo（“用户名”gaspar@gmail.com");
query2.findInBackground（新的FindCallback（）{
已完成公共作废（列表usuario，Parsee）{
如果（e==null）{
mPrueba=usuario.get（0.getParseFile（“foto”）；
tv.setText（usuario.get（0.getUsername（）.toString（））；
url=Uri.parse（mPrueba.getUrl（））；
Picasso.with（getBaseContext（））.load（url.toString（））.transform（新一轮转换（300,4））.into（imgvw）；
}否则{
//出了点问题。
}
}
});
//德尔乔弗碎片酒店
碎片；
fragmento=新的FragmentoPrincipalChofer（）；
getSupportFragmentManager（）.beginTransaction（）
.更换（R.id.content_main，fragmento）
.commit（）；
}
@凌驾
公共布尔onCreateOptions菜单（菜单）{
//为菜单充气；这会将项目添加到操作栏（如果存在）。
getMenuInflater（）.充气（R.menu.pantalla\u principal\u usuario，菜单）；
返回true；
}
@凌驾
公共布尔值onOptionsItemSelected（菜单项项）{
//处理操作栏项目单击此处。操作栏将
//自动处理Home/Up按钮上的点击，只要
//在AndroidManifest.xml中指定父活动时。
int id=item.getItemId（）；
//noinspection SimplifiableIf语句
if（id==R.id.action\u设置）{
返回true；
}
返回super.onOptionsItemSelected（项目）；
}
@SuppressWarnings（“StatementWithEmptyBody”）
@凌驾
公共布尔值onNavigationItemSelected（MenuItem项）{
//处理导航视图项单击此处。
int id=item.getItemId（）；
if（id==R.id.cuenta）{
碎片；
fragmento=新的opciondrawersuario（）；
getSupportFragmentManager（）.beginTransaction（）
.更换（R.id.content_main，fragmento）
.addToBackStack（空）
.commit（）；
}else if（id==R.id.historial_viajes）{
碎片；
fragmento=新的Fragmentoviajesacumulatidos（）；
getSupportFragmentManager（）.beginTransaction（）
.更换（R.id。
public class FragmentoPrincipalChofer extends ListFragment {
private List<ParseObject> mPedido;
private List<ParseObject> mViaje;
private List<ParseUser> mUrlUsuario;
private ListView mLista;
private Runnable r;
final Handler handler = new Handler();
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View x = inflater.inflate(R.layout.fragmento_principal_chofer, container, false);
mLista = (ListView)x.findViewById(android.R.id.list);
return x;
}
@Override
public void onResume() {
super.onResume();
// logica de recibir pedidos
r = new Runnable() {
public void run() {
handler.postDelayed(r, 10000);
//obtener pedido de taxi
ParseQuery<ParseObject> query = ParseQuery.getQuery("Pedido");
query.whereEqualTo("chofer", "chofer1");
query.addDescendingOrder("createdAt");
query.findInBackground(new FindCallback<ParseObject>() {
public void done(List<ParseObject> pedido, com.parse.ParseException e) {
if (e == null) {
mPedido = pedido;
String[] nombreUsuarios = new String[mPedido.size()];
int i = 0;
for (ParseObject pedidos : mPedido) {
nombreUsuarios[i] = pedidos.getString("cliente");
i++;
}
AdaptadorDatosListviewChofer adaptador = new AdaptadorDatosListviewChofer(getListView().getContext(), mPedido);
setListAdapter(adaptador);
} else {
}
}
});
}
};
r.run();
ClickPedido();
}
// manejo de click sobre el pedido de taxi
public void ClickPedido(){
mLista.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
Fragment fragment2 = new MapaChofer();
FragmentTransaction transaction = getChildFragmentManager().beginTransaction();
transaction.replace(R.id.prueba2, fragment2).addToBackStack(null);
transaction.commit();
/*
DrawerPrincipal prueba=new DrawerPrincipal();
prueba.cambiarFragmento();*/
//verificar si aun existe el pedido en la base de datos
/* final String clienteSeleccionado = (String) mLista.getItemAtPosition(position);
ParseQuery<ParseObject> query = ParseQuery.getQuery("Pedido");
query.whereEqualTo("usuario", clienteSeleccionado);
query.findInBackground(new FindCallback<ParseObject>() {
public void done(List<ParseObject> pedido, com.parse.ParseException e) {
if (e == null) {
//guardar viaje tomado por chofer
ParseObject Viaje = new ParseObject("Viaje");
Viaje.put("chofer", "chofer1");
Viaje.put("cliente", clienteSeleccionado);
Viaje.saveInBackground();
//borrar pedido xque paso a viaje
ParseQuery<ParseObject> query = new ParseQuery<ParseObject>("Pedido");
query.whereEqualTo("cliente", clienteSeleccionado);
query.getFirstInBackground(new GetCallback<ParseObject>() {
@Override
public void done(ParseObject pedido, ParseException e) {
try {
pedido.delete();
pedido.saveInBackground();
} catch (ParseException ex) {
ex.printStackTrace();
}
}
});
} else {
//debo cambiarlo por un dialog
Toast.makeText(getContext(), "el pedido ya fue tomado", Toast.LENGTH_LONG).show();
}
}
});*/
}
});
}
@Override
public void onPause() {
super.onPause();
handler.removeCallbacks(r);
}
}
public class MapaChofer extends Fragment implements OnMapReadyCallback {
private SupportMapFragment sMapFragment;
private Runnable r;
final Handler handler = new Handler();
private String mDireccion;
private GoogleMap mMapaTaxi;
private Marker mMarcadorTaxi;
private Marker mMarcadorCliente;
public boolean mCambiarPosicion = false;
private Button mCancelar;
private Button mTomado;
private ParseFile mPrueba;
private Uri url;
private ImageView mUsuario;
private TextView mNUsuario;
private Double mLatitud;
private Double mLongitud;
private Double mLatitudCliente;
private Double mLongitudCliente;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
//conseguir usuario actual
// mUsuarioActual = ParseUser.getCurrentUser();
//preparar google maps
final View x = inflater.inflate(R.layout.mapa_chofer, container, false);
mCancelar = (Button) x.findViewById(R.id.cancelarPedido);
mTomado = (Button) x.findViewById(R.id.pTomadoBtn);
mUsuario = (ImageView) x.findViewById(R.id.usuarioIv);
mNUsuario = (TextView) x.findViewById(R.id.usuarioNTv);
mTomado.setEnabled(false);
ParseUser currentUser = ParseUser.getCurrentUser();
currentUser.logOut();
ParseUser.logInInBackground("chofer1", "12345", new LogInCallback() {
public void done(ParseUser user, ParseException e) {
if (user != null) {
// Hooray! The user is logged in.
} else {
// Signup failed. Look at the ParseException to see what happened.
}
}
});
ParseQuery<ParseUser> query2 = ParseUser.getQuery();
query2.whereEqualTo("username", "gaspar@gmail.com");
query2.findInBackground(new FindCallback<ParseUser>() {
public void done(List<ParseUser> usuario, ParseException e) {
if (e == null) {
mPrueba = usuario.get(0).getParseFile("foto");
mNUsuario.setText(usuario.get(0).getUsername().toString());
url = Uri.parse(mPrueba.getUrl());
Picasso.with(getContext()).load(url.toString()).transform(new RoundedTransformation(300, 4)).into(mUsuario);
} else {
// Something went wrong.
}
}
});
sMapFragment = SupportMapFragment.newInstance();
sMapFragment.getMapAsync(this);
android.support.v4.app.FragmentManager fm = getFragmentManager();
android.support.v4.app.FragmentManager sFm = getChildFragmentManager();
sFm.beginTransaction().add(R.id.mapaChofer, sMapFragment).commit();
//controlar pedido
seguirPedido();
return x;
}
public void seguirPedido() {
// mMarcadorTaxi = mMapaTaxi.addMarker(new MarkerOptions().position(sydney));
r = new Runnable() {
public void run() {
handler.postDelayed(r, 10000);
ParseQuery<ParseUser> query = ParseUser.getQuery();
query.whereEqualTo("username", "chofer1");
query.findInBackground(new FindCallback<ParseUser>() {
public void done(final List<ParseUser> objects, ParseException e) {
if (e == null) {
Double longitud = Double.parseDouble(objects.get(0).get("longitud").toString());
Double latitud = Double.parseDouble(objects.get(0).get("latitud").toString());
if (mCambiarPosicion == true) {
//obtener la posicion actual
posicionActual();
final ParseUser usuario = ParseUser.getCurrentUser();
usuario.put("longitud", mLongitud);
usuario.put("latitud", mLatitud);
usuario.saveInBackground(new SaveCallback() {
@Override
public void done(ParseException e) {
if (e == null) {
//success, saved!
} else {
//fail to save!
}
}
});
mMarcadorTaxi.remove();
LatLng posicionTaxista = new LatLng(mLatitud, mLongitud);
mMarcadorTaxi = mMapaTaxi.addMarker(new MarkerOptions().position(posicionTaxista));
Location prueba1 = new Location("punto a");
prueba1.setLongitude(mLongitud);
prueba1.setLatitude(mLatitud);
Location prueba2 = new Location("punto a");
prueba2.setLongitude(mLongitudCliente);
prueba2.setLatitude(mLatitudCliente);
float distance;
distance = prueba1.distanceTo(prueba2);
if (distance < 300) {
Toast.makeText(getContext(), "El taxi se encuentra a 1 cuadra", Toast.LENGTH_LONG).show();
mTomado.setEnabled(true);
mTomado.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
getFragmentManager().popBackStack();
}
});
}
} else {
posicionActual();
LatLng posicionTaxista = new LatLng(mLatitud,mLongitud );
mMarcadorTaxi = mMapaTaxi.addMarker(new MarkerOptions().position(posicionTaxista));
}
// handler.removeCallbacks(r);
// mTomado=true;
// Toast.makeText(getContext(),mLongitud+"",Toast.LENGTH_LONG).show();
mCambiarPosicion = true;
} else {
// Something went wrong.
}
}
});
}
};
r.run();
}
// mMarcadorTaxi.remove();
@Override
public void onMapReady(final GoogleMap googleMap) {
if (ActivityCompat.checkSelfPermission(getContext(), android.Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(getContext(), 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;
}
googleMap.setMyLocationEnabled(true);
Double longitud=-27.793483;
Double latitud=-64.257572;
final LatLng ubicacion = new LatLng(latitud,longitud );
googleMap.moveCamera(CameraUpdateFactory.newLatLngZoom(ubicacion,14 ));
mMapaTaxi = googleMap;
ParseQuery<ParseUser> query = ParseUser.getQuery();
query.whereEqualTo("username", "gaspar@gmail.com");
query.findInBackground(new FindCallback<ParseUser>() {
@Override
public void done(List<ParseUser> objects, ParseException e) {
Double longitud = Double.parseDouble(objects.get(0).get("longitud").toString());
Double latitud = Double.parseDouble(objects.get(0).get("latitud").toString());
final LatLng ubicacion = new LatLng(latitud,longitud );
float zoomLevel = 14;
mMarcadorCliente = googleMap.addMarker(new MarkerOptions().position(ubicacion).title("este es el cliente"));
googleMap.moveCamera(CameraUpdateFactory.newLatLngZoom(ubicacion, zoomLevel));
mLongitudCliente=longitud;
mLatitudCliente=latitud;
}
});
}
public void posicionActual() {
LocationManager mng = (LocationManager) getContext().getSystemService(getContext().LOCATION_SERVICE);
if (ActivityCompat.checkSelfPermission(getContext(), android.Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(getContext(), 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;
}
Location location1 = mng.getLastKnownLocation(mng.getBestProvider(new Criteria(), false));
mLatitud = location1.getLatitude();
mLongitud = location1.getLongitude();
}
@Override
public void onResume() {
super.onResume();
getView().setFocusableInTouchMode(true);
getView().requestFocus();
getView().setOnKeyListener(new View.OnKeyListener() {
@Override
public boolean onKey(View v, int keyCode, KeyEvent event) {
if (event.getAction() == KeyEvent.ACTION_UP && keyCode == KeyEvent.KEYCODE_BACK) {
getFragmentManager().popBackStack();
return true;
}
return false;
}
});
}
}
public class OpcionDrawerUsuario extends Fragment {
private TextView nombre;
private TextView pass;
private Button guardar;
private Button salir;
private FragmentoPrincipalChofer hilo=new FragmentoPrincipalChofer();
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
//conseguir usuario actual
// mUsuarioActual = ParseUser.getCurrentUser();
View x = inflater.inflate(R.layout.opcion_drawer_usuario, container, false);
nombre=(TextView)x.findViewById(R.id.nombreTv);
pass=(TextView)x.findViewById(R.id.passTv);
guardar=(Button)x.findViewById(R.id.guardarButtom);
salir=(Button)x.findViewById(R.id.volverButtom);
//cargar datos usuario
ParseQuery<ParseUser> query = ParseUser.getQuery();
query.whereEqualTo("username", "usuario1");
query.findInBackground(new FindCallback<ParseUser>() {
public void done(List<ParseUser> usuario, ParseException e) {
if (e == null) {
nombre.setText(usuario.get(0).getUsername());
} else {
// Something went wrong.
}
}
});
guardar.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
}
});
// Inflate the layout for this fragment
return x;
}
@Override
public void onResume() {
super.onResume();
getView().setFocusableInTouchMode(true);
getView().requestFocus();
getView().setOnKeyListener(new View.OnKeyListener() {
@Override
public boolean onKey(View v, int keyCode, KeyEvent event) {
if (event.getAction() == KeyEvent.ACTION_UP && keyCode == KeyEvent.KEYCODE_BACK) {
getFragmentManager().popBackStack();
return true;
}
return false;
}
});
}
}
if (mView != null) {
ViewGroup parent = (ViewGroup) mView.getParent();
if (parent != null)
parent.removeView(mView);
}
try {
} catch (InflateException e) {
e.printStackTrace();
}