Example usage for android.widget AdapterView post

Introduction

In this page you can find the example usage for android.widget AdapterView post.

Prototype

public boolean post(Runnable action) 

Source Link

Document

Causes the Runnable to be added to the message queue.

Usage

From source file:org.mozilla.gecko.tests.BaseTest.java

/**
 * Gets the view in the tabs panel at the specified index.
 *
 * @return View at index//ww  w  .  j  av a  2 s.c o m
 */
private View getTabViewAt(final int index) {
    final View[] childView = { null };

    final AdapterView<ListAdapter> view = getTabsLayout();

    runOnUiThreadSync(new Runnable() {
        @Override
        public void run() {
            view.setSelection(index);

            // The selection isn't updated synchronously; posting a
            // runnable to the view's queue guarantees we'll run after the
            // layout pass.
            view.post(new Runnable() {
                @Override
                public void run() {
                    // getChildAt() is relative to the list of visible
                    // views, but our index is relative to all views in the
                    // list. Subtract the first visible list position for
                    // the correct offset.
                    childView[0] = view.getChildAt(index - view.getFirstVisiblePosition());
                }
            });
        }
    });

    boolean result = waitForCondition(new Condition() {
        @Override
        public boolean isSatisfied() {
            return childView[0] != null;
        }
    }, MAX_WAIT_MS);

    mAsserter.ok(result, "list item at index " + index + " exists", null);

    return childView[0];
}

---