动态添加菜单项

落日映苍穹つ 2022-09-23 09:29 247阅读 0赞

package com.example.optionsmenu;
    
    import android.app.Activity;
    import android.os.Bundle;
    import android.view.Menu;
    import android.view.MenuItem;
    import android.widget.Toast;
    
    
    public class MainActivity extends Activity {
    
        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_main);
        }
    
    
        @Override
        public boolean onCreateOptionsMenu(Menu menu) {
            // Inflate the menu; this adds items to the action bar if it is present.
            //getMenuInflater().inflate(R.menu.main, menu);
        	menu.add(1,100,1,"菜单一");
        	menu.add(1,101,1,"菜单二");
        	menu.add(1,102,1,"菜单三");
        	menu.add(1,103,1,"菜单四");
        	menu.add(1,104,1,"菜单五");
        	menu.add(1,105,1,"菜单六");
        	menu.add(1,106,1,"菜单七");
            return true;
        }
        
        //重写onOptionsItemSelected方法
        @Override
        public boolean onOptionsItemSelected(MenuItem item) {
        	// TODO Auto-generated method stub
        	switch (item.getItemId()) {
    		case 100:
    			Toast.makeText(MainActivity.this,"点击了菜单一",Toast.LENGTH_LONG).show();
    			break;
            case 101:
            	Toast.makeText(MainActivity.this,"点击了菜单二",Toast.LENGTH_LONG).show();
    			break;
            case 102:
            	Toast.makeText(MainActivity.this,"点击了菜单三",Toast.LENGTH_LONG).show();
    			break;
            case 103:
            	Toast.makeText(MainActivity.this,"点击了菜单四",Toast.LENGTH_LONG).show();
    			break;
            case 104:
            	Toast.makeText(MainActivity.this,"点击了菜单五",Toast.LENGTH_LONG).show();
    			break;
            case 105:
            	Toast.makeText(MainActivity.this,"点击了菜单六",Toast.LENGTH_LONG).show();
    			break;
            case 106:
            	Toast.makeText(MainActivity.this,"点击了菜单七",Toast.LENGTH_LONG).show();
    			break;
    		default:
    			break;
    		}
        	return super.onOptionsItemSelected(item);
        }
    //    public boolean onOptionsItemSelected(MenuItem item) {
    //        // Handle action bar item clicks here. The action bar will
    //        // automatically handle clicks on the Home/Up button, so long
    //        // as you specify a parent activity in AndroidManifest.xml.
    //        int id = item.getItemId();
    //        if (id == R.id.item_menu1) {
    //            return true;
    //        }
    //        return super.onOptionsItemSelected(item);
    //    }
    }