最近做项目要用到横向的listvew,找了下却实在没有水平方向的listview,
就想到了gallery,虽然Gallery is deprecated,但它的作用个人觉得还是很不错的,,
(因本人不会写自定义的水平listview)
gallery实现的效果涂如下:
给gallery添加代码的只要代码如下:
protected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);Gallery gallery = (Gallery) findViewById(R.id.gallery);gallery.setOnItemSelectedListener(new OnItemSelectedListener() {@Overridepublic void onItemSelected(AdapterView<?> parent, View view,int position, long id) {System.out.println("onItemSelected" + position);}@Overridepublic void onNothingSelected(AdapterView<?> parent) {System.out.println("onNothingSelected");}});gallery.setAdapter(new BaseAdapter() {@Overridepublic View getView(int position, View convertView, ViewGroup parent) {TextView tv = new TextView(getApplicationContext());tv.setWidth(1800);tv.setBackgroundColor(Color.BLUE);tv.setGravity(Gravity.CENTER);tv.setHeight(120);tv.setText("test:" + position);return tv;}@Overridepublic long getItemId(int position) {return 0;}@Overridepublic Object getItem(int position) {return null;}@Overridepublic int getCount() {return 10;}});}gallery.setOnItemSelectedListener其实是监听的是在屏幕中间的那个item
,中间的item在变的时候,这个onItemSelected会一直调用。
之前一直认为listview设置listView.setOnItemSelectedListener也是一样,径调试当listview的item在滚动的时候
,onItemSelected方法是不会调用的,这是gallery和listview不同的一点。
可笑的小心谨慎,还有从来就不会安全的安全感。