自定义Menu的背景有一个错误 我从网上粘的代码,提示有错MenuAct cannot resolved to a type 解决方案 » 免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货 package mas.menu;import android.app.Activity;import android.content.Context;import android.os.Bundle;import android.os.Handler;import android.util.AttributeSet;import android.view.InflateException;import android.view.LayoutInflater;import android.view.Menu;import android.view.MenuInflater;import android.view.MenuItem;import android.view.View;import android.widget.Toast;/** * @author Sodino E-mail:[email protected] * @version Time:2011-1-26 下午04:42:04 */ public class MenuActivity extends Activity { @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); } public boolean onCreateOptionsMenu(Menu menu) { super.onCreateOptionsMenu(menu); MenuInflater inflater = new MenuInflater(getApplicationContext()); inflater.inflate(R.menu.menu, menu); setMenuBackground(); return true; } public boolean onOptionsItemSelected(MenuItem item) { String info = ""; switch (item.getItemId()) { case R.id.menu_add: info = "Add"; break; case R.id.menu_delete: info = "Delete"; break; case R.id.menu_home: info = "Home"; break; case R.id.menu_help: info = "Help"; break; default: info = "NULL"; break; } Toast toast = Toast.makeText(this, info, Toast.LENGTH_SHORT); toast.show(); return super.onOptionsItemSelected(item); } // 关键代码为重写Layout.Factory.onCreateView()方法自定义布局 protected void setMenuBackground() { MenuAct.this.getLayoutInflater().setFactory(new android.view.LayoutInflater.Factory() { /** * name - Tag name to be inflated.<br/> * context - The context the view is being created in.<br/> * attrs - Inflation attributes as specified in XML file.<br/> */ public View onCreateView(String name, Context context, AttributeSet attrs) { // 指定自定义inflate的对象 if (name.equalsIgnoreCase("com.android.internal.view.menu.IconMenuItemView")) { try { LayoutInflater f = getLayoutInflater(); final View view = f.createView(name, null, attrs); new Handler().post(new Runnable() { public void run() { // 设置背景图片 view.setBackgroundResource(R.drawable.button4); } }); return view; } catch (InflateException e) { e.printStackTrace(); } catch (ClassNotFoundException e) { e.printStackTrace(); } } return null; } }); } } 谢谢大家了 MenuAct是项目名,我写错了 在intel架构下安装了Oracle vm+Android x86 4.04 如何装Busybox android 错误 error opening trace file: 获取surfaceview的canvas 有谁知道这个控件的实现原理吗? 输入框为圆角,按纽为弧形角,在线等 求学、给分 Android ActionBar Tab的宽度 求助!遇到Android开发中Edittext输入延迟的问题 android studio新人 kotlin初学者的提问 androidIntent的使用 NDK是不是java与C交互用的啊?
import android.content.Context;
import android.os.Bundle;
import android.os.Handler;
import android.util.AttributeSet;
import android.view.InflateException;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.widget.Toast;
/**
* @author Sodino E-mail:[email protected]
* @version Time:2011-1-26 下午04:42:04
*/
public class MenuActivity extends Activity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
}
public boolean onCreateOptionsMenu(Menu menu) {
super.onCreateOptionsMenu(menu);
MenuInflater inflater = new MenuInflater(getApplicationContext());
inflater.inflate(R.menu.menu, menu);
setMenuBackground();
return true;
}
public boolean onOptionsItemSelected(MenuItem item) {
String info = "";
switch (item.getItemId()) {
case R.id.menu_add:
info = "Add";
break;
case R.id.menu_delete:
info = "Delete";
break;
case R.id.menu_home:
info = "Home";
break;
case R.id.menu_help:
info = "Help";
break;
default:
info = "NULL";
break;
}
Toast toast = Toast.makeText(this, info, Toast.LENGTH_SHORT);
toast.show();
return super.onOptionsItemSelected(item);
}
// 关键代码为重写Layout.Factory.onCreateView()方法自定义布局
protected void setMenuBackground() {
MenuAct.this.getLayoutInflater().setFactory(new android.view.LayoutInflater.Factory() {
/**
* name - Tag name to be inflated.<br/>
* context - The context the view is being created in.<br/>
* attrs - Inflation attributes as specified in XML file.<br/>
*/
public View onCreateView(String name, Context context, AttributeSet attrs) {
// 指定自定义inflate的对象
if (name.equalsIgnoreCase("com.android.internal.view.menu.IconMenuItemView")) {
try {
LayoutInflater f = getLayoutInflater();
final View view = f.createView(name, null, attrs);
new Handler().post(new Runnable() {
public void run() {
// 设置背景图片
view.setBackgroundResource(R.drawable.button4);
}
});
return view;
} catch (InflateException e) {
e.printStackTrace();
} catch (ClassNotFoundException e) {
e.printStackTrace();
}
}
return null;
}
});
}
}