android Dialog

				Dialog dialog = new AlertDialog.Builder(Fun2.this)
				.setTitle("Exit?")
				.setIcon(R.drawable.icon2)
				.setPositiveButton("退出", new DialogInterface.OnClickListener() {//积极按钮
					
					public void onClick(DialogInterface dialog, int which) {
						finish();
					}
				})
				.setNeutralButton("查看详情", new DialogInterface.OnClickListener() {//中立按钮
					
					public void onClick(DialogInterface dialog, int which) {
						Toast.makeText(Fun2.this, "退出", Toast.LENGTH_SHORT).show();
					}
				})
				.setNegativeButton("取消", new DialogInterface.OnClickListener() {//消极按钮
					
					public void onClick(DialogInterface dialog, int which) {
						dialog.cancel();
					}
				})
				.create();
				dialog.show();