I am trying to open a new activity on button click but I am getting these two errors:
not an enclosing class:Main Activity
Execution failed for task ':app:compileDebugJavaWithJavac'
Compilation failed; see the compiler error output for details. Here is the code for MainActivity.java
package com.example.admin.viewsandevents;
import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
final EditText etUSN=(EditText) findViewById(R.id.etUSN);
final EditText etPassword=(EditText) findViewById(R.id.etPassword);
final Button bLogin=(Button) findViewById(R.id.bLogin);
final TextView registerLink =(TextView) findViewById(R.id.tvRegisterhere);
registerLink.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Intent registerIntent = new Intent(MainActivity.this,RegisterActivity.class);
MainActivity.this.startActivity(registerIntent);
}
});
}
}
And here is the code for RegisterActivity.java
package com.example.admin.viewsandevents;
import android.content.Intent;
import android.support.v7.app.AlertDialog;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import com.android.volley.RequestQueue;
import com.android.volley.Response;
import com.android.volley.toolbox.Volley;
import org.json.JSONException;
import org.json.JSONObject;
public class RegisterActivity extends AppCompatActivity
{
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_register);
final EditText etAge=(EditText) findViewById(R.id.etAge);
final EditText etName=(EditText) findViewById(R.id.etName);
final EditText etUSN=(EditText) findViewById(R.id.etUSN);
final EditText etPassword=(EditText) findViewById(R.id.etPassword);
final Button bRegister=(Button) findViewById(R.id.bRegister);
bRegister.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
final String name=etName.getText().toString();
final String username=etUSN.getText().toString();
final String password=etPassword.getText().toString();
final int age=Integer.parseInt(etAge.getText().toString());
Response.Listener<String> responseListener =new Response.Listener<String>(){
@Override
public void onResponse(String response) {
try {
JSONObject jsonResponse =new JSONObject(response);
boolean success =jsonResponse.getBoolean("success");
if(success){
Intent myintent =new Intent(RegisterActivity.this, MainActivity.class);
RegisterActivity.this.startActivity(myintent);
}
else{
AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this);
builder.setMessage("Register Failed")
.setNegativeButton("Retry",null)
.create()
.show();
}
} catch (JSONException e) {
e.printStackTrace();
}
}
};
RegisterRequest registerRequest =new RegisterRequest(name,username,age,password, responseListener );
RequestQueue queue = Volley.newRequestQueue(MainActivity.this);
queue.add(registerRequest);
}
});
}
}
so please do help me out with this
The problem is in RegisterActivity.java
. You're trying to create an alert dialog from it but you use MainActivity.this
as the context:
AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this);
builder.setMessage("Register Failed")
.setNegativeButton("Retry",null)
.create()
.show();
Change it to use RegisterActivity.this
like:
AlertDialog.Builder builder = new AlertDialog.Builder(RegisterActivity.this);
builder.setMessage("Register Failed")
.setNegativeButton("Retry",null)
.create()
.show();
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