在动作中使用Intent
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对。我有一个需要调用其他活动的动作。据我了解，如果要解析此活动的值，则需要使用Intents进行操作。
但是，我的代码失败了，我对原因有些困惑。
我的主要活动：
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.main);
final ArrayList<menuItem> AMI = new ArrayList<menuItem>();
/*Menu item: String name, String menu ID*/
/*ToDo: Logic to fecth new menu structure from server*/
menuItem MI1 = new menuItem(\"menu item 1\",\"1\");
menuItem MI2 = new menuItem(\"menu item 2\",\"2\");
AMI.add(MI1);
AMI.add(MI2);
GridView gridview = (GridView) findViewById(R.id.GridView01);
gridview.setAdapter(new menuAdapter(this, AMI));
gridview.setOnItemClickListener(new OnItemClickListener()
{
public void onItemClick(AdapterView<?> parent, View v, int position, long id)
{
//Toast.makeText(Runner.this, AMI.get(position).getMenuID(), Toast.LENGTH_SHORT).show();
Intent myIntent = new Intent(v.getContext(), showMenu.class);
myIntent.putExtra(\"parentID\", AMI.get(position).getMenuID());
startActivityForResult(myIntent, 0);
}
});
public class showMenu extends Activity{
public String menuParent = \"\";
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.submenu);
Bundle extras = getIntent().getExtras();
if(extras !=null)
{
menuParent = extras.getString(\"parentID\");
}
/*ToDo: Logic to fecth new menu structure from server*/
final ArrayList<menuItem> AMI = new ArrayList<menuItem>();
menuItem MI1 = new menuItem(\"submenu 1\",\"1\");
menuItem MI2 = new menuItem(\"submenu 2\",\"2\");
AMI.add(MI1);
AMI.add(MI2);
GridView gridview = (GridView) findViewById(R.id.GridView01);
gridview.setAdapter(new subMenuAdapter(this, AMI));
}
public class subMenuAdapter extends BaseAdapter {
private ArrayList<menuItem> MIL = new ArrayList<menuItem>();
public static final int ACTIVITY_CREATE = 10;
public subMenuAdapter(Context c, ArrayList<menuItem> AMI) {
MIL = AMI;
}
public int getCount() {
return MIL.size();
}
public Object getItem(int position) {
return null;
}
public long getItemId(int position) {
return 0;
}
public View getView(int position, View convertView, ViewGroup parent) {
View v;
if (convertView == null) {
LayoutInflater li = getLayoutInflater();
v = (LinearLayout) li.inflate(R.layout.grid_item, null);
TextView tv = (TextView)v.findViewById(R.id.grid_text);
tv.setText(MIL.get(position).getMenuname());
} else {
v = convertView;
}
return v;
}
}
没有找到相关结果
已邀请:
4 个回复
吐兄
<activity android:name=\"Package.Name.showMenu\" android:theme=\"@android:style/Theme.Light\"></activity>渐首洽陈染
草票
类中，而不是使用Listner。疾桓