1
請指導我，我怎麼能叫上其他活動菜單從其他活動調用菜單
喜歡這裏的主要活動
package com.droidnova.android.howto.optionmenu;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.widget.Toast;
public class ControlMenu 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) {
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.menu, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.settings:
Intent intent = new Intent(this, ShowSettings.class);
startActivity(intent);
break;
case R.id.services: Toast.makeText(this, "You pressed the text!", Toast.LENGTH_LONG).show();
break;
case R.id.Quit:
new Thread(new Runnable() {
public void run() {
ControlMenu.this.finish();
// The following makes the Android Gods frown upon me
android.os.Process.killProcess(android.os.Process.myPid());
System.exit(0);
}
}).start();
break;
default:
break;
}
return true;
}
}
現在我有做的另一項活動中，我需要證明在此
package com.droidnova.android.howto.optionmenu;
import android.app.Activity;
import android.app.AlertDialog;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
public class ShowSettings extends Activity {
Prefs myprefs = null;
final String tag = "CH12:ShowSettings";
AlertDialog.Builder adb;// = new AlertDialog.Builder(this);
@Override
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
setContentView(R.layout.showsettings);
this.myprefs = new Prefs(getApplicationContext());
// load screen
PopulateScreen();
this.adb = new AlertDialog.Builder(this);
final Button savebutton = (Button) findViewById(R.id.settingssave);
// create anonymous click listener to handle the "save"
savebutton.setOnClickListener(new Button.OnClickListener() {
public void onClick(View v) {
try {
// get the string and do something with it.
final EditText email = (EditText) findViewById(R.id.emailaddress);
if (email.getText().length() == 0) {
AlertDialog ad = ShowSettings.this.adb.create();
ad.setMessage("Please Enter Your Email Address");
ad.show();
return;
}
final EditText serverurl = (EditText) findViewById(R.id.serverurl);
if (serverurl.getText().length() == 0) {
AlertDialog ad = ShowSettings.this.adb.create();
ad.setMessage("Please Enter The Server URL");
ad.show();
return;
}
// save off values
ShowSettings.this.myprefs.setEmail(email.getText().toString());
ShowSettings.this.myprefs.setServer(serverurl.getText().toString());
ShowSettings.this.myprefs.save();
// we're done!
finish();
} catch (Exception e) {
Log.i(ShowSettings.this.tag, "Failed to Save Settings [" + e.getMessage() + "]");
}
}
});
}
private void PopulateScreen() {
try {
final EditText emailfield = (EditText) findViewById(R.id.emailaddress);
final EditText serverurlfield = (EditText) findViewById(R.id.serverurl);
emailfield.setText(this.myprefs.getEmail());
serverurlfield.setText(this.myprefs.getServer());
} catch (Exception e) {
}
}
}
我應該在上面的代碼寫同樣的菜單，所以我的菜單也可以出現在這裏。