运动事件具有无效指针计数0＆gt;＆gt;在导航抽屉中打开/关闭/选择

Question

如果我对导航抽屉做任何事情，我会收到此错误。

Motion event has invalid pointer count 0; value must be between 1 and 16.

此错误不会导致我的活动崩溃。但只是充斥着我的日志。以下是活动。适配器是自定义适配器，其中包含图像和文本。

public class FirstActivity extends AppCompatActivity implements AdapterView.OnItemClickListener {
private DrawerLayout drawerLayout;
private ActionBarDrawerToggle actionBarDrawerToggle;
private ListView navList;
private NavAdapter navAdapter;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_first);

    drawerLayout = (DrawerLayout)findViewById(R.id.drawerLayout);
    navList = (ListView)findViewById(R.id.navigation_list);
    navAdapter = new NavAdapter(this);
    navList.setAdapter(navAdapter);
    navList.setOnItemClickListener(this);
    actionBarDrawerToggle = new ActionBarDrawerToggle(this, drawerLayout, R.string.opendrawer, R.string.closedrawer);

    drawerLayout.setDrawerListener(actionBarDrawerToggle);
    getSupportActionBar().setDisplayShowHomeEnabled(true);
    getSupportActionBar().setDisplayHomeAsUpEnabled(true);
}

@Override
public boolean onOptionsItemSelected(MenuItem item) {
    if(actionBarDrawerToggle.onOptionsItemSelected(item)){
        return true;
    }
    return super.onOptionsItemSelected(item);
}

@Override
public void onConfigurationChanged(Configuration newConfig) {
    super.onConfigurationChanged(newConfig);
    actionBarDrawerToggle.onConfigurationChanged(newConfig);
}

@Override
public void onPostCreate(Bundle savedInstanceState) {
    super.onPostCreate(savedInstanceState);
    actionBarDrawerToggle.syncState();
}

@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
    navList.setItemChecked(position, true);
    String menuItem = (((TextView)view.findViewById(R.id.drawerTV)).getText().toString());
    getSupportActionBar().setTitle(menuItem);
}
}