Android StartActivity选项菜单

debugcn 发表于 Dev

用户名

我正在尝试从OptionsMenu启动一个活动，但是它没有启动。为什么？

@Override
public boolean onOptionsItemSelected(MenuItem item) {
    // toggle nav drawer on selecting action bar app icon/title
    if (mDrawerToggle.onOptionsItemSelected(item)) {
        return true;
    }
    // Handle action bar actions click
    switch (item.getItemId()) {
    case R.id.action_settings:
        return true;
    case R.id.main:
        Intent intent = null;
        intent = new Intent(MainActivity.this, Impostazioni.class);
        this.startActivity(intent);
        return true;

    default:
        return super.onOptionsItemSelected(item);
    }


}

豪尔赫西斯

// Delay is in milliseconds
static final int DRAWER_DELAY = 200;

@Override
public boolean onOptionsItemSelected(MenuItem item) {

  //open navigationDrawer
  new Handler().postDelayed(openDrawerRunnable(), DRAWER_DELAY);

    // Handle action bar actions click
    switch (item.getItemId()) {
    case R.id.action_settings:
        return true;
    case R.id.main:
        Intent intent = null;
        intent = new Intent(MainActivity.this, Impostazioni.class);
        this.startActivity(intent);
        return true;

    default:
        return super.onOptionsItemSelected(item);
    }

}

打开导航抽屉的方法...

private Runnable openDrawerRunnable() {
    return new Runnable() {

        @Override
        public void run() {
            mDrawerToggle.openDrawer(Gravity.LEFT);
        }
    }
}

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