I am new to android development. tried to implement android dialog in my project but the it's not showing .There are no errors in the logcat.
This is the XML code for it :
<android.support.design.widget.FloatingActionButton
android:id="@+id/add_item"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="16dp"
android:layout_marginEnd="8dp"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
android:clickable="true"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.927"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.935"
app:srcCompat="@android:drawable/ic_input_add" />
This is the part where I have implemented alertdialog :
FloatingActionButton add_button = findViewById(R.id.add_item);
add_button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
final AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this);
builder.setTitle("Create item list");
final EditText enter_item_list=new EditText(MainActivity.this);
enter_item_list.setInputType(InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_FLAG_CAP_WORDS);
enter_item_list.setHint("Type a name");
enter_item_list.setHintTextColor(Color.RED);
builder.setView(enter_item_list);
builder.setPositiveButton("Add", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int i) {
String item_name = enter_item_list.getText().toString().trim();
add_item_to_list(item_name);
}
});
builder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int which) {
dialogInterface.dismiss();
AlertDialog alertDialog=builder.create();
alertDialog.show();
}
});
itemList_ref = Firestore_ref.collection("itemList").document(UserEmail).collection("user_item_list");
}
});
}
private void add_item_to_list(String item_name) {
String item_id = itemList_ref.document().getId();
InventoryModel inventoryModel = new InventoryModel(item_id,item_name ,UserName);
itemList_ref.document(item_id).set(inventoryModel).addOnSuccessListener(new OnSuccessListener<Void>() {
@Override
public void onSuccess(Void aVoid) {
Log.d("TAG","Inventory list created");
}
});
}
This is the full code :
import android.content.DialogInterface;
import android.content.Intent;
import android.graphics.Color;
import android.support.annotation.NonNull;
import android.support.design.widget.FloatingActionButton;
import android.support.v7.app.AlertDialog;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.text.InputType;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.EditText;
import android.widget.Toast;
import com.google.android.gms.auth.api.Auth;
import com.google.android.gms.auth.api.signin.GoogleSignIn;
import com.google.android.gms.auth.api.signin.GoogleSignInAccount;
import com.google.android.gms.common.api.GoogleApiClient;
import com.google.android.gms.tasks.OnSuccessListener;
import com.google.firebase.auth.FirebaseAuth;
import com.google.firebase.auth.FirebaseUser;
import com.google.firebase.firestore.CollectionReference;
import com.google.firebase.firestore.FieldValue;
import com.google.firebase.firestore.FirebaseFirestore;
import com.omniheart.elloslai.storage_checker.model.InventoryModel;
import java.util.HashMap;
import java.util.Map;
public class MainActivity extends AppCompatActivity {
private String UserEmail , UserName ;
private GoogleApiClient googleApiClient ;
private FirebaseAuth firebase_auth;
private FirebaseFirestore Firestore_ref;
private FirebaseAuth.AuthStateListener authStateListener;
private CollectionReference itemList_ref ;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
GoogleSignInAccount googleSignInAccount = GoogleSignIn.getLastSignedInAccount(this);
if(googleSignInAccount!=null){
UserEmail=googleSignInAccount.getEmail();
UserName = googleSignInAccount.getDisplayName();
Toast.makeText(this,"Welcome" + UserName,Toast.LENGTH_LONG).show();
}
googleApiClient = new GoogleApiClient.Builder(this)
.addApi(Auth.GOOGLE_SIGN_IN_API)
.build();
firebase_auth=FirebaseAuth.getInstance();
Firestore_ref=FirebaseFirestore.getInstance();
authStateListener=new FirebaseAuth.AuthStateListener() {
@Override
public void onAuthStateChanged(@NonNull FirebaseAuth firebaseAuth) {
FirebaseUser firebaseUser = firebase_auth.getCurrentUser();
if(firebaseUser == null) {
Intent intent = new Intent(MainActivity.this,LoginActivity.class);
startActivity(intent);
finish();
}
}
};
FloatingActionButton add_button = findViewById(R.id.add_item);
add_button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
final AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this);
builder.setTitle("Create item list");
final EditText enter_item_list=new EditText(MainActivity.this);
enter_item_list.setInputType(InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_FLAG_CAP_WORDS);
enter_item_list.setHint("Type a name");
enter_item_list.setHintTextColor(Color.RED);
builder.setView(enter_item_list);
builder.setPositiveButton("Add", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int i) {
String item_name = enter_item_list.getText().toString().trim();
add_item_to_list(item_name);
}
});
builder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int which) {
dialogInterface.dismiss();
AlertDialog alertDialog=builder.create();
alertDialog.show();
}
});
itemList_ref = Firestore_ref.collection("itemList").document(UserEmail).collection("user_item_list");
}
});
}
private void add_item_to_list(String item_name) {
String item_id = itemList_ref.document().getId();
InventoryModel inventoryModel = new InventoryModel(item_id,item_name ,UserName);
itemList_ref.document(item_id).set(inventoryModel).addOnSuccessListener(new OnSuccessListener<Void>() {
@Override
public void onSuccess(Void aVoid) {
Log.d("TAG","Inventory list created");
}
});
}
@Override
protected void onStart() {
super.onStart();
googleApiClient.connect();
firebase_auth.addAuthStateListener(authStateListener);
}
@Override
protected void onStop() {
super.onStop();
if(googleApiClient.isConnected()){
googleApiClient.disconnect();
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.main_menu, menu);
return true ;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()){
case R.id.sign_out_button:
signOut() ;
return true ;
default:
return super.onOptionsItemSelected(item);
}
}
private void signOut() {
Map<String ,Object> map = new HashMap<>();
map.put("tokenId", FieldValue.delete());
Firestore_ref.collection("users").document(UserEmail).update(map).addOnSuccessListener(new OnSuccessListener<Void>() {
@Override
public void onSuccess(Void aVoid) {
firebase_auth.signOut();
if (googleApiClient.isConnected()){
Auth.GoogleSignInApi.signOut(googleApiClient);
}
}
});
}
}
