可展开的listview android单击即可更改布局
我有一个android项目,我必须改变最后一个exxpanded组(将崩溃)和被点击组的布局。我有以下几种方法:可展开的listview android单击即可更改布局,android,layout,expandablelistview,onclicklistener,Android,Layout,Expandablelistview,Onclicklistener,我有一个android项目,我必须改变最后一个exxpanded组(将崩溃)和被点击组的布局。我有以下几种方法: int cnt=list.getChildCount(); //set layout to all groups (for closed group) for(int i = 0; i < cnt; i`enter code here`++){
int cnt=list.getChildCount();
//set layout to all groups (for closed group)
for(int i = 0; i < cnt; i`enter code here`++){
View group = adapter.getGroupView(i, false,
null, list);
LinearLayout childLayout = (LinearLayout) group.findViewById(R.id.newsLayout); childLayout.setBackgroundResource(R.layout.group_layout_shape);
}
// set layout of clicked group
LinearLayout groupLayout = (LinearLayout) v.findViewById(R.id.newsLayout);
groupLayout.setBackgroundResource(R.layout.group_layout_opened_shape);`enter code here`
int cnt=list.getChildCount();
//将布局设置为所有组(对于闭合组)
对于(int i=0;i
它会更改单击组的布局(将展开),但不会更改组的布局,即:colapses:(ayone可以帮助我吗?您不应该使用此方法,因为它仅用于图片、颜色、要使用的布局充气机,充气机有一个非常有趣的方法 充气(R.layout.childLayout,ParentView,true) 首先放置要充气的层,第二个(包含子对象的父对象)和第三个(布尔变量必须为true才能充气) 活动中的示例:
public class MainActivity extends ActionBarActivity {
LayoutInflater inflater;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
inflater = (LayoutInflater)getSystemService(LAYOUT_INFLATER_SERVICE);
RelativeLayout parentView= (RelativeLayout) findViewById(R.id.mainLayout);
View v = (View) inflater.inflate(R.layout.child_layout, parentView, true);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
@Override
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();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
}