scrollview和listview 衝突 動態定listview高度
阿新 • • 發佈：2018-12-11
- public class MainActivity extends Activity {
- private ListView listView;
- @Override
- protected void onCreate(Bundle savedInstanceState) {
- super.onCreate(savedInstanceState);
- setContentView(R.layout.activity_main);
- listView = (ListView) findViewById(R.id.listView1);
- String[] adapterData = new String[] { "Afghanistan", "Albania",… … "Bosnia"};
- listView.setAdapter(new ArrayAdapter<String>(this,android.R.layout.simple_list_item_1,adapterData));
- setListViewHeightBasedOnChildren(listView);
- }
- public void setListViewHeightBasedOnChildren(ListView listView) {
- // 獲取ListView對應的Adapter
- ListAdapter listAdapter = listView.getAdapter();
- if (listAdapter == null) {
- return;
- }
- int totalHeight = 0;
- for (int i = 0, len = listAdapter.getCount(); i < len; i++) {
- // listAdapter.getCount()返回資料項的數目
- View listItem = listAdapter.getView(i, null, listView);
- // 計運算元項View 的寬高
- listItem.measure(0, 0);
- // 統計所有子項的總高度
- totalHeight += listItem.getMeasuredHeight();
- }
- ViewGroup.LayoutParams params = listView.getLayoutParams();
- params.height = totalHeight+ (listView.getDividerHeight() * (listAdapter.getCount() - 1));
- // listView.getDividerHeight()獲取子項間分隔符佔用的高度
- // params.height最後得到整個ListView完整顯示需要的高度
- listView.setLayoutParams(params);
- }
- }