我写了一个小程序tp练习根据官方文档动态添加菜单项,它只是不起作用:
主要活动:
public class MainActivity extends Activity {
private MenuInflater mi;
@Override
public boolean onCreateOptionsMenu(Menu menu) {
super.onCreateOptionsMenu(menu);
Intent intent = new Intent();
mi = getMenuInflater();
mi.inflate(R.menu.opt, menu);
intent.addCategory(Intent.CATEGORY_ALTERNATIVE);
menu.addIntentOptions(Menu.CATEGORY_ALTERNATIVE,
3,
0,
this.getComponentName(),
null,
intent,
0,
null);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
return super.onOptionsItemSelected(item);
}
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
}
}
和DestActivity是:
public class DestActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
}
manifest.xml:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.app.alex.testadd"
android:versionCode="1"
android:versionName="1.0">
<uses-sdk android:minSdkVersion="3" />
<application android:icon="@drawable/icon" android:label="@string/app_name">
<activity android:name=".MainActivity"
android:label="@string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name=".DestActivity"
android:label="@string/app_name">
<intent-filter>
<category android:name="android.intent.category.ALTERNATIVE" />
</intent-filter>
</activity>
</application>
</manifest>
提前感谢....
答案 0 :(得分:2)
尝试一下,适合我:
package com.learn.menu;
import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
public class TestActivity extends Activity {
private static final int UPDATE_DATA = 0;
private static final int ADD_NEW = 1;
/** 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){
menu.add(0,UPDATE_DATA,0,"Update Information");
menu.add(0,ADD_NEW,1,"Add New Inspection");
return true;
}
public boolean onOptionsItemSelected (MenuItem item)
{
switch(item.getItemId())
{
case(UPDATE_DATA):
Log.d("tag", "update");
break;
case(ADD_NEW):
Log.d("tag", "Add");
break;
}
return false;
}
}