I download bike car service app from tech vidvan but i don't know which algorithm use in this program so how to i check it. Please check below program this is Main Activity.
public class MainActivity extends AppCompatActivity {
Button btn_vehicleOwner, btn_serviceCentre;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
btn_serviceCentre = findViewById(R.id.btn_serviceCentre);
btn_vehicleOwner = findViewById(R.id.btn_vehicleOwner);
btn_serviceCentre.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
startActivity(new Intent(MainActivity.this, ServiceLogin.class).setFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK | Intent.FLAG_ACTIVITY_NEW_TASK));
}
});
btn_vehicleOwner.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
startActivity(new Intent(MainActivity.this, UserLogin.class).setFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK | Intent.FLAG_ACTIVITY_NEW_TASK));
}
Which algorithm i am use in this program?
Related
I'm having an Issue that I have two Activities A and B when I clicked on Button to change an Activity from A to B . It Restart my Application I don't know what going wrong Please help me
public class Login_Choice_Activity extends AppCompatActivity{
private Button d_btn,p_btn;
#Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_login__choice);
FindAllView();
p_btn.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
// startActivity(new
Intent(Login_Choice_Activity.this,Patient_SignIn_Activity.class));
Toast.makeText(getApplicationContext(),"CLICKED",Toast.LENGTH_LONG).show();
}
});
}
private void FindAllView(){
d_btn = findViewById(R.id.choice_doctor_btn);
p_btn = findViewById(R.id.choice_patient_btn);
}
}
https://i.stack.imgur.com/KcgAh.gif
It could be better if you create a method for opening the new Activity and call it from onClick(View v) method. Example
private void openActivity() {
startActivity(new Intent(this,Patient_SignIn_Activity.class));
}
In your onClick call:
#Override
public void onClick(View v) {
openActivity()
}
public class MainActivity extends AppCompatActivity {
private Button c;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
c = (Button)findViewById(R.id.buttonRegister1);
c.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Intent j = new Intent(MainActivity.this,Welcome.class);
}
});
}
}
You should call
startActivity(j);
you forgot a simple thing :-
c.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Intent j = new Intent(MainActivity.this,Welcome.class);
startActivity(j);
}
});
I devised some activities with its relationships between each other after I pass any acttivity from Main Actvity. But I couldn't succeed to pass another activity from any activity.
Here is the code below.
public class A extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_istanbul);
TextView attractivePlaces = (TextView) findViewById(R.id.a_category_attractive_places);
attractivePlaces.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Toast.makeText(getApplicationContext(),"A",Toast.LENGTH_SHORT).show();
Intent intent = new Intent(A.this,B.class); // Here the issue is.
startActivity(intent);
}
});
}
}
How can I solve the problem.
Try changing View.OnClickListener() to TextView.OnClickListener()
final code would be like this:
public class A extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_istanbul);
TextView attractivePlaces = (TextView) findViewById(R.id.a_category_attractive_places);
attractivePlaces.setOnClickListener(new TextView.OnClickListener() {
#Override
public void onClick(View v) {
Toast.makeText(getApplicationContext(),"A",Toast.LENGTH_SHORT).show();
Intent intent = new Intent(A.this,B.class); // Here the issue is.
startActivity(intent);
}
});
}
}
Maybe this will help.
I have made successfully my Imagebutton to open anther activity but the issue is by using the same method on another ImageButton it comes up with an error saying the method is already used in "Main Activity".
public class MainActivity extends ActionBarActivity {
private static ImageButton ImageButton_sbm;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
OnClickImageButtonListener();
}
public void OnClickImageButtonListener() {
ImageButton_sbm = (ImageButton)findViewById(R.id.imageButton);
ImageButton_sbm.setOnClickListener(
new View.OnClickListener() {
#Override
public void onClick(View v) {
Intent intent = new Intent("saintbedeslytham.saintbedes.event");
startActivity(intent);
}
}
);
}
private static ImageButton ImageButton2_sbm;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
OnClickImageButtonListener();
}
public void OnClickImageButtonListener() {
ImageButton_sbm = (ImageButton)findViewById(R.id.imageButton2);
ImageButton_sbm.setOnClickListener(
new View.OnClickListener() {
#Override
public void onClick(View v) {
Intent intent = new Intent("saintbedeslytham.saintbedes.news");
startActivity(intent);
}
}
);
}
How, if anything, can I apply another method for the "saintbedeslytham.saintbedes.news"
Your problem here is that you cannot create two method with the same definition.
You have two:
protected void onCreate(Bundle savedInstanceState);
and two:
public void OnClickImageButtonListener();
You can't have 2 methods with the same definition for 2 simple reasons.Imagine 2 people with the same name, call for their name.
Who will answer?
Who are you calling?
Edit:
So you can:
public class MainActivity extends ActionBarActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
prepareClicks();
}
private void prepareClicks() {
findViewById(R.id.imageButton).setOnClickListener(
new View.OnClickListener() {
#Override
public void onClick(View v) {
Intent intent = new Intent("saintbedeslytham.saintbedes.event");
startActivity(intent);
}
}
);
findViewById(R.id.imageButton2).setOnClickListener(
new View.OnClickListener() {
#Override
public void onClick(View v) {
Intent intent = new Intent("saintbedeslytham.saintbedes.news");
startActivity(intent);
}
}
);
}
}
public class MainActivity extends ActionBarActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
prepareClicks();
}
private void prepareClicks() {
findViewById(R.id.imageButton).setOnClickListener(
new View.OnClickListener() {
#Override
public void onClick(View v) {
Intent intent = new Intent("saintbedeslytham.saintbedes.event");
startActivity(intent);
}
}
);
findViewById(R.id.imageButton2).setOnClickListener(
new View.OnClickListener() {
#Override
public void onClick(View v) {
Intent intent = new Intent("saintbedeslytham.saintbedes.news");
startActivity(intent);
}
}
);
}
}
Yup the method worked.
Thanks for the replies,
(Done by Gorcyn)
I have a button which I am assigning an OnClickListener to. I want to start a new intent as a result of this. In order to do that, I have to reference the activity. The only one I know how to do this is via something like the following code. Is this the best way to start an intent from a button click? Also, what kind of memory implications will there be for this?
public class SomeActivity extends FragmentActivity {
private final FragmentActivity self=this;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
findViewById(R.id.startButton).setOnClickListener(new View.OnClickListener(){
public void onClick(View v) {
Intent intent=new Intent(self,someClass.class);
startActivity(intent);
}
});
}
The best way to do this is to simply pass ActtivityName.this, like this:
public class SomeActivity extends FragmentActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
findViewById(R.id.startButton).setOnClickListener(new View.OnClickListener(){
public void onClick(View v) {
Intent intent=new Intent(SomeActivity.this,someClass.class);
startActivity(intent);
}
});
}
Another way to do this will be calling :
findViewById(R.id.startButton).setOnClickListener(this);
Then make your Activity implement View.OnClickListener and implement the methods onClick(View v) in this way :
public void onClick(View v) {
switch(v.getId()) {
case R.id.startButton:
Intent intent=new Intent(self,someClass.class);
startActivity(intent);
break;
// Handle click on other views
}
}
It prevents from instantiating a listener and should be a bit better for memory consumption.