Android ProgressBar 显示在Title上面

package shortcut.song.com.myapplication;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.view.View;import android.view.Window;public class TitleProgressBarActivity extends AppCompatActivity {    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        requestWindowFeature(Window.FEATURE_PROGRESS);        requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS);        setContentView(R.layout.activity_title_progress_bar);    }    public void showProgress(View view)    {        setProgressBarIndeterminateVisibility(true);        setProgressBarVisibility(true);        setProgress(200);    }    public void hideProgress(View view)    {        setProgressBarIndeterminateVisibility(false);        setProgressBarVisibility(false);    }}