我在菜单键事件上创建弹出菜单时遇到问题。我不明白如何将所需参数传递给popmenu构造函数。如果有人知道我的代码中有什么问题,请建议。
public boolean onKeyUp(int keyCode, KeyEvent event) {
if (keyCode == KeyEvent.KEYCODE_MENU)
{
View v=getCurrentFocus();
PopupMenu popupMenu = new PopupMenu(this,v);
popupMenu.inflate(R.menu.poupup_menu);
popupMenu.setOnMenuItemClickListener(
new PopupMenu.OnMenuItemClickListener() {
@Override
public boolean onMenuItemClick(MenuItem item) {
switch (item.getItemId()) {
case R.id.menu_red:
Toast.makeText(context,"red",2000).show();
break;
case R.id.menu_blue:
Toast.makeText(context,"red",2000).show();
break;
case R.id.menu_green:
Toast.makeText(context,"red",2000).show();
break;
}
return true;
}
});
popupMenu.show();
// ...
return true;
} else {
return super.onKeyUp(keyCode, event);
}
}
}
答案 0 :(得分:0)
感谢各位回答...我得到了处理android菜单的perferct解决方案..Override onCreateoption菜单方法,在获取菜单实例中并充气我们的自定义菜单..并处理菜单点击事件。
/* Initiating Menu XML file (menu.xml) */ @Override public boolean onCreateOptionsMenu(Menu menu) { MenuInflater menuInflater = getMenuInflater(); menuInflater.inflate(R.layout.menu, menu); return true; }
/**
* Event Handling for Individual menu item selected
* Identify single menu item by it's id
* */
@Override
public boolean onOptionsItemSelected(MenuItem item)
{
switch (item.getItemId())
{
case R.id.menu_bookmark:
// Single menu item is selected do something
// Ex: launching new activity/screen or show alert message
Toast.makeText(AndroidMenusActivity.this, "Bookmark is Selected", Toast.LENGTH_SHORT).show();
return true;
case R.id.menu_save:
Toast.makeText(AndroidMenusActivity.this, "Save is Selected", Toast.LENGTH_SHORT).show();
return true;
case R.id.menu_search:
Toast.makeText(AndroidMenusActivity.this, "Search is Selected", Toast.LENGTH_SHORT).show();
return true;
case R.id.menu_share:
Toast.makeText(AndroidMenusActivity.this, "Share is Selected", Toast.LENGTH_SHORT).show();
return true;
case R.id.menu_delete:
Toast.makeText(AndroidMenusActivity.this, "Delete is Selected", Toast.LENGTH_SHORT).show();
return true;
case R.id.menu_preferences:
Toast.makeText(AndroidMenusActivity.this, "Preferences is Selected", Toast.LENGTH_SHORT).show();
return true;
default:
return super.onOptionsItemSelected(item);
}
}