How to use onCreateOptionsMenu,onOptionsItemSelected&onPrepareOptionsMenu?

[Allan Ai]

Why I cann`t run the following case? It says there are sth. wrong at
"onCreateOptionsMenu","onOptionsItemSelected"&"onPrepareOptionsMenu" .


package com.demo.menu;

import android.app.Activity;
import android.os.Bundle;

public class MenuDemo extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
}

@Override
public boolean onCreateOptionsMenu(Menu menu) {
super.onCreateOptionsMenu(menu);
menu.add(0,0,0,"1");
menu.add(0,1,0,"2");
menu.add(0,2,0,"3");
menu.add(0,3,0,"4");
menu.add(0,4,0,"5");
return true;
}

@Override
public boolean onOptionsItemSelected(MenuItem item) {
super.onOptionsItemSelected(item);
TextView view = (TextView) findViewById(R.id.text_view);
switch (item.getItemId()) {
case 0:
view.setText("This is"+item.getTitle());
break;
case 1:
view.setText("This is"+item.getTitle());
break;
default:
view.setText("Debug.");
break;
}
return false;
}

@Override
public boolean onPrepareOptionsMenu(Menu menu) {
return super.onPrepareOptionsMenu(menu);
}
}

[Glen Humphrey]

What does it say is wrong?

Post by Allan Ai
Why I cann`t run the following case? It says there are sth. wrong at
"onCreateOptionsMenu","onOptionsItemSelected"&"onPrepareOptionsMenu" .
package com.demo.menu;
import android.app.Activity;
import android.os.Bundle;
public class MenuDemo extends Activity {
    /** Called when the activity is first created. */
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
    }
@Override
 public boolean onCreateOptionsMenu(Menu menu) {
  super.onCreateOptionsMenu(menu);
  menu.add(0,0,0,"1");
  menu.add(0,1,0,"2");
  menu.add(0,2,0,"3");
  menu.add(0,3,0,"4");
  menu.add(0,4,0,"5");
  return true;
 }
 public boolean onOptionsItemSelected(MenuItem item) {
  super.onOptionsItemSelected(item);
  TextView view = (TextView) findViewById(R.id.text_view);
  switch (item.getItemId()) {
   view.setText("This is"+item.getTitle());
   break;
   view.setText("This is"+item.getTitle());
   break;
            view.setText("Debug.");
  break;
  }
  return false;
 }
 public boolean onPrepareOptionsMenu(Menu menu) {
  return super.onPrepareOptionsMenu(menu);
 }
}

[zhoubo shi]

please, say error message!

Post by Glen Humphrey
What does it say is wrong?

Post by Allan Ai
Why I cann`t run the following case? It says there are sth. wrong at
"onCreateOptionsMenu","onOptionsItemSelected"&"onPrepareOptionsMenu" .
package com.demo.menu;
import android.app.Activity;
import android.os.Bundle;
public class MenuDemo extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
super.onCreateOptionsMenu(menu);
menu.add(0,0,0,"1");
menu.add(0,1,0,"2");
menu.add(0,2,0,"3");
menu.add(0,3,0,"4");
menu.add(0,4,0,"5");
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
super.onOptionsItemSelected(item);
TextView view = (TextView) findViewById(R.id.text_view);
switch (item.getItemId()) {
view.setText("This is"+item.getTitle());
break;
view.setText("This is"+item.getTitle());
break;
view.setText("Debug.");
break;
}
return false;
}
@Override
public boolean onPrepareOptionsMenu(Menu menu) {
return super.onPrepareOptionsMenu(menu);
}
}

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[Nils]

It seems to be impossible to show checkmarks in the optionsmenu.
If that is the case, then I have to change the menu item text
dynamically to reflect the current state, right?
Comments, please!

Post by zhoubo shi
please, say error message!

Post by Glen Humphrey
What does it say is wrong?

Post by Allan Ai
Why I cann`t run the following case? It says there are sth. wrong at
"onCreateOptionsMenu","onOptionsItemSelected"&"onPrepareOptionsMenu" .
package com.demo.menu;
import android.app.Activity;
import android.os.Bundle;
public class MenuDemo extends Activity {
    /** Called when the activity is first created. */
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
    }
@Override
 public boolean onCreateOptionsMenu(Menu menu) {
  super.onCreateOptionsMenu(menu);
  menu.add(0,0,0,"1");
  menu.add(0,1,0,"2");
  menu.add(0,2,0,"3");
  menu.add(0,3,0,"4");
  menu.add(0,4,0,"5");
  return true;
 }
 public boolean onOptionsItemSelected(MenuItem item) {
  super.onOptionsItemSelected(item);
  TextView view = (TextView) findViewById(R.id.text_view);
  switch (item.getItemId()) {
   view.setText("This is"+item.getTitle());
   break;
   view.setText("This is"+item.getTitle());
   break;
            view.setText("Debug.");
  break;
  }
  return false;
 }
 public boolean onPrepareOptionsMenu(Menu menu) {
  return super.onPrepareOptionsMenu(menu);
 }
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