如何以编程方式创建导航抽屉？

Question

I need create activity with navigation drawer only with java without xml. but this way doesn't work for me. Is it possible to create and add to app Navigation Drawer without using xml? Every example i saw had an additional xml file with layout. I searched very much but I did not get any results. Please help me. in this way navigation drawer always open on contentLayout and not moving with finger or swiping !

my activity code:

import androidx.drawerlayout.widget.DrawerLayout;

public class LaunchActivity extends Activity {

    private Context context;
    private DrawerLayout drawerLayout;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        context = getApplicationContext();

        //DrawerLayout
        drawerLayout = new DrawerLayout(context);
        drawerLayout.setLayoutParams(new DrawerLayout.LayoutParams(DrawerLayout.LayoutParams.MATCH_PARENT, DrawerLayout.LayoutParams.MATCH_PARENT));

        //ContentLayout
        LinearLayout contentLayout = new LinearLayout(context);
        contentLayout.setOrientation(LinearLayout.VERTICAL);
        contentLayout.setLayoutParams(new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.MATCH_PARENT));

        //CustomNavigationView
        RelativeLayout drawerView =  new RelativeLayout(context);
        drawerView.setLayoutParams(new RelativeLayout.LayoutParams(AndroidUtilities.dp(280), RelativeLayout.LayoutParams.MATCH_PARENT));
        drawerView.setGravity(Gravity.START);

        //Add View to ContentLayout
        TextViewFont textView = new TextViewFont(context);
        textView.setText("=");
        textView.setTextColor(Color.BLACK);
        textView.setTextSize(20);
        textView.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                drawerLayout.openDrawer(Gravity.START);
            }
        });
        contentLayout.addView(textView);

        //Add View to CustomNavigationView
        RelativeLayout drawerHeaderView = new RelativeLayout(context);
        drawerHeaderView.setBackground(getResources().getDrawable(R.drawable.drawer_header));
        drawerHeaderView.setGravity(Gravity.BOTTOM);
        drawerHeaderView.setLayoutParams(new RelativeLayout.LayoutParams(AndroidUtilities.dp(280), AndroidUtilities.dp(170)));
        ImageView imageView = new ImageView(context);
        imageView.setImageDrawable(getResources().getDrawable(R.drawable.user));
        imageView.setBaselineAlignBottom(true);
        RelativeLayout.LayoutParams params = new RelativeLayout.LayoutParams(AndroidUtilities.dp(90), AndroidUtilities.dp(90));
        params.addRule(RelativeLayout.ALIGN_PARENT_TOP);
        params.addRule(RelativeLayout.CENTER_HORIZONTAL);
        drawerHeaderView.addView(imageView, params);
        drawerView.addView(drawerHeaderView);

        //Add All to DrawerLayout
        drawerLayout.addView(contentLayout, new DrawerLayout.LayoutParams(DrawerLayout.LayoutParams.MATCH_PARENT, DrawerLayout.LayoutParams.MATCH_PARENT));
        drawerLayout.addView(drawerView, new RelativeLayout.LayoutParams(AndroidUtilities.dp(280), RelativeLayout.LayoutParams.MATCH_PARENT));
        setContentView(drawerLayout);
    }
}

Answer 1

你可以使用这个库，然后在 BaseActivity 中覆盖 setContentView() 并在那里初始化抽屉构建器。