layout-inflater

问题 I'm trying to make a custom adapter for my navigation drawer, and keep getting a nullpointer exception on the layout inflater. I've tried declaring the LayoutInflater variable inside and outside the getView method as suggested in other posts, but to no avail. Below is my Custom Adapter Class Context mContext; private ArrayList<String> mValues = new ArrayList<String>(); LayoutInflater inflater; public DrawerListAdapter(Context context, ArrayList<String> mValues) { super(context, R.layout

问题 I want to achieve exactly like PopupMenu with icons On layout click which is in Custom Toolbar . So , i have taken the help of an answer but issue i am facing is : Nothing is poping out on click . POPLayout.xml <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/poplayout" android:layout_width="wrap_content" android:layout_height="wrap_content" android:orientation="vertical" > <LinearLayout android:layout_width=

问题 In Android reference, it says For performance reasons, view inflation relies heavily on pre-processing of XML files that is done at build time. Therefore, it is not currently possible to use LayoutInflater with an XmlPullParser over a plain XML file at runtime; it only works with an XmlPullParser returned from a compiled resource (R.something file.) Details here if it really causes performance reasons why Android developers don't solve this problem? Is it any solution about it? Can I use a

问题 I am making an Custom listview with Custom Adapter extending BaseAdapter . Now I want to set a different layout only for first row and another layout for all other rows. I am using this code but it sets the special layout for 1st row and also repeats it after every 5/6 rows. How can I fix it and can set it only for 1st row and another layout for all other rows. public class NewsAdapter extends BaseAdapter { private Context context; List<News> newsList; private Typeface customBanglaFont;

问题 I have called a make layout method that takes input label and input public void makeLayout(String label, String inputType) { Toast.makeText(getApplicationContext(), label + " " + inputType, Toast.LENGTH_SHORT).show(); LayoutInflater vi = (LayoutInflater) getApplicationContext() .getSystemService(Context.LAYOUT_INFLATER_SERVICE); View v = vi.inflate(R.layout.activity_main, null); // fill in any details dynamically here TextView textView = (TextView) v.findViewById(R.id.textView1); textView

问题 I have two separate xml files as shown below and both of them are placed inside the layout folder. One of the is named firstlayout and the other is secondlayout . In the activity, I want to show the contents of both using layoutinflater . Despite of, the firstlayout.xml its contents are oriented and aligned horizontally and the secondlayout.xml has a relativelayout aligned at the center, however, when I use addcontentview as shown below in my code, the output is a horizontal blended text of

问题 I have an adapter class which uses the getFilter function within a ListView . I wanted to modify it so that when the search is empty, the EditText text color becomes red. I have the following code which doesn't FC my app but the return string is blank instead of what is in the EditText My partial adapter class: @SuppressWarnings("unchecked") @Override protected void publishResults(CharSequence constraint, FilterResults results) { data = (ArrayList<SetRows>)results.values; if (data.isEmpty())

问题 From the Android development page we have the following quote for Custom ArrayAdapter of ListViews: "there is absolutely no guarantee on the order in which getView() will be called nor how many times." When I have the following and getView is called a few times, it's no problem, since I'm just recycling the Views instead of inflating them again: @Override public void getView(int position, View convertView, ViewGroup parent){ Log.i(TAG, "getView of position " + String.valueOf(position) + " is

问题 I have an activity that can show two different layouts. Both of the layouts are pre-defined (XML). Basically, if a condition is met, then layout A should be displayed. If the condition fails, then layout B should be displayed. Layout A is a simplistic Linear Layout - it's my main "form", so to speak. Layout B is a simplistic Relative Layout - it's a placeholder until some data can be downloaded. Once the data is downloaded (and a notification is sent), then I want to remove Layout B and

问题 I know similar questions like this has been answered but I seem to have done what the tutorial suggested and reading from other posts but still I get the Inflator error. Not sure what I am doing wrong. I don't see Google-Map. Please check the code. Thanks a lot. I generate My Key with: keytool -list -v -keystore mystore.keystore Activity_Map.java package pt.example.project; import android.os.Bundle; import android.support.v4.app.FragmentActivity; public class Activity_Map extends