小编Ver*_*mus的帖子

我有问题.我遵循了很多指南,但仍然无法让我的Share按钮工作.我在ActionBar中显示了图标,但是当我按下时没有任何事情发生在android:showAsAction ="always".但是当android:showAsAction ="never"时它会起作用.我只想让分享图标始终显示在ActionBar中.我做错了什么？请帮忙

这是我的代码:

public class Main extends Activity {

    private ShareActionProvider mShareActionProvider;

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.menu, menu);
        MenuItem item = menu.findItem(R.id.shareButton);
        mShareActionProvider = (ShareActionProvider) item.getActionProvider();
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        switch (item.getItemId()) {
        case R.id.shareButton:
            Intent sharingIntent = new Intent(android.content.Intent.ACTION_SEND); 
            sharingIntent.setType("text/plain");
            String shareBody = "Check it out";
            sharingIntent.putExtra(android.content.Intent.EXTRA_SUBJECT,"Subject");
            sharingIntent.putExtra(android.content.Intent.EXTRA_TEXT, shareBody);
            startActivity(Intent.createChooser(sharingIntent, "Share via"));
            return true;
        case R.id.aboutButton:
            Intent intent = new Intent(this, About.class);
            startActivity(intent);
            return true;
        default:
            return super.onOptionsItemSelected(item);
        }
    }
} …