I'm trying to reproduce the long pression of device key in the context of an Android Junit Test. Here's a simple application I wrote as a testbed: it simply prints the code of the last key pressed in one of the first two text fields, and increases a counter; the latter allows me to test if the key is also repeated. You may copy and paste the code to recreate it in your system

Here's the activity XML layout

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<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >

    <TextView
        android:id="@+id/textView1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="last Key"
        android:textAppearance="?android:attr/textAppearanceLarge" />


    <TextView
        android:id="@+id/lastKeyPressed"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="-" />

    <TextView
        android:id="@+id/textView2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Last Long Key"
        android:textAppearance="?android:attr/textAppearanceLarge" />

    <TextView
        android:id="@+id/longKeyPressed"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="-" />

    <TextView
        android:id="@+id/textView4"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Counter"
        android:textAppearance="?android:attr/textAppearanceLarge" />

    <TextView
        android:id="@+id/counter"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="0" />

</LinearLayout>


and here's the code for the Activity:

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package com.nofatclips.keyevent;

import android.app.Activity;
import android.os.Bundle;
import android.view.KeyEvent;
import android.widget.*;

public class KeyEventsDumpActivity extends Activity {

    int counter = 0;

    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.key_event);
    }

    public boolean onKeyDown(int keyCode, KeyEvent event)  {
        counter++;
        ((TextView)findViewById(R.id.counter)).setText(""+counter);
        ((TextView)findViewById(R.id.lastKeyPressed)).setText(""+keyCode);
        event.startTracking();
        return true; //super.onKeyDown (keyCode, event);
    }

    public boolean onKeyLongPress(int keyCode, KeyEvent event)  {
        counter--;
        ((TextView)findViewById(R.id.counter)).setText(""+counter);
        ((TextView)findViewById(R.id.longKeyPressed)).setText(""+keyCode);
        return super.onKeyLongPress (keyCode, event);
    }

}


And finally, here's one of my many fruitless attempt at generating the correct timed sequence of events for the long pression:

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package com.nofatclips.keyevent.test;

import com.nofatclips.keyevent.KeyEventsDumpActivity;

import android.os.SystemClock;
import android.test.ActivityInstrumentationTestCase2;
import android.util.Log;
import android.view.KeyEvent;

public class KeyEventTest extends ActivityInstrumentationTestCase2<KeyEventsDumpActivity> {
    private KeyEventsDumpActivity mActivity;  // the activity under test

    public KeyEventTest() {
      super("com.nofatclips.keyevent", KeyEventsDumpActivity.class);
    }

    @Override
    protected void setUp() throws Exception {
        super.setUp();
        mActivity = this.getActivity();
    }

    public void testLongPress() {
        sendKeyDownUpLong(KeyEvent.KEYCODE_MENU);
    }

    public void sendKeyDownUpLong(final int key) {
        final KeyEvent downEvent = new KeyEvent (KeyEvent.ACTION_DOWN, key);
        sendKeyDownUp(downEvent);
        sleep(500);

        for (int repetition = 0; repetition<50; repetition++) {
            KeyEvent newEvent = KeyEvent.changeTimeRepeat(downEvent, SystemClock.uptimeMillis(), repetition, downEvent.getFlags() | KeyEvent.FLAG_LONG_PRESS);
            sendKeyDownUp(newEvent);
            sleep(5);
        }

        final KeyEvent upEvent = new KeyEvent (KeyEvent.ACTION_UP, key);
        sendKeyDownUp (upEvent);
    }

    public void sendKeyDownUp(KeyEvent key) {
        getInstrumentation().sendKeySync(key);
        getInstrumentation().waitForIdleSync();
    }

    public void sleep (int msec) {
        try {
            Thread.sleep(msec);
        } catch (InterruptedException e) {
            Log.e("nofatclips", "Could not sleep. Mosquito alert!", e);
            return;
        }

    }

}


Thanks in advance for any constructive idea.

DeK