Question

我使用全屏Dialog以全屏模式显示ExoPlayer视频。我已在托管onCreate的{{1}} Activity方法中使用以下代码隐藏Dialog。

Navigation Bar

问题是，只要对话框打开，导航栏就会出现，我无法隐藏它。

public class BaseActivity extends AppCompatActivity {
    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        //Hide the navigation bar in the beginning
        final View decorView = getWindow().getDecorView();
        int uiOptions = View.SYSTEM_UI_FLAG_HIDE_NAVIGATION
                | View.SYSTEM_UI_FLAG_FULLSCREEN;
        decorView.setSystemUiVisibility(uiOptions);

        //Set a system bar visibility change listener
        decorView.setOnSystemUiVisibilityChangeListener(
                new View.OnSystemUiVisibilityChangeListener() {
                    @Override
                    public void onSystemUiVisibilityChange(int visibility) {
                        if ((visibility & View.SYSTEM_UI_FLAG_FULLSCREEN) == 0) {
                            decorView.setSystemUiVisibility(
                                    View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
                                            | View.SYSTEM_UI_FLAG_HIDE_NAVIGATION);
                        }
                    }
                }
        );


    }
}

无论我使用哪种选项进行对话或private void openFullScreenDialog() { ((ViewGroup) mExoPlayerView.getParent()).removeView(mExoPlayerView); mFullScreenDialog.addContentView(mExoPlayerView, new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT)); mFullScreenIcon.setImageDrawable(ContextCompat.getDrawable(PlaybackActivity.this, R.drawable.ic_fullscreen_exit)); mExoPlayerFullScreen = true; mFullScreenDialog.show(); getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_HIDE_NAVIGATION | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION | View.SYSTEM_UI_FLAG_FULLSCREEN); }，都会显示导航栏。

Answer 1

这样做：

decorView.setOnSystemUiVisibilityChangeListener(
        new View.OnSystemUiVisibilityChangeListener() {
            @Override
            public void onSystemUiVisibilityChange(int visibility) {
                getWindow().addFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);
                getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION);
                getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_HIDE_NAVIGATION | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY);

            }
        }
);

同样覆盖此方法：

@Override
    public void onWindowFocusChanged(boolean hasFocus) {
        super.onWindowFocusChanged(hasFocus);
        if (hasFocus) {
            getWindow().addFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);
            getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION);
            getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_HIDE_NAVIGATION | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY);

        }
    }

Answer 2

试试这个

最佳解决方案是使用DialogFragment

显示对话框

unique_id

全屏

DialogFragment.show(getSupportFragmentManager(), DialogFragment.TAG);

风格

@NonNull
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
    Dialog dialog = new Dialog(getActivity(), R.style.MainDialog) { //set the style, the best code here or with me, we do not change
        @Override
        public void onBackPressed() {
            super.onBackPressed();
            getActivity().finish();
        }
    };
    return dialog;
}

使用全屏对话框时如何隐藏导航栏

2 个答案: