当前位置:  开发笔记 > 编程语言 > 正文

将导航抽屉添加到现有活动

如何解决《将导航抽屉添加到现有活动》经验,为你挑选了1个好方法。

我有一个我正在编写的应用程序,它已经包含了很多代码,我决定要在主活动工具栏中添加导航抽屉,但我不知道如何在不创建新的导航抽屉项目的情况下进行复制我的整个项目似乎很多工作,是否有一个教程将导航抽屉添加到现有项目?



1> 小智..:

创建一个布局layout_left_menu.xml








    
        
        
    







在自定义视图中对其进行充气:

public class SimpleLeftMenuView extends NavigationView {
    private LayoutInflater mInflater;
    private Context mContext;

    private ListView mItemsList;
    private MenuItemsAdapter mItemsAdapter;
    private ProgressBar mProgress;

    private OnClickMenu mListener;

    private ImageView mHeader;
    private TextView userName;
    private TextView userEmail;

    //region Constructors
    public SimpleLeftMenuView(Context context) {
        super(context);
        mContext = context;
        mInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);

        initLayout();

        setData();
    }

    public SimpleLeftMenuView(Context context, AttributeSet attrs) {
        super(context, attrs);
        mContext = context;
        mInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);

        initLayout();

        setData();
    }

    public SimpleLeftMenuView(Context context, AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
        mContext = context;
        mInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);

        initLayout();

        setData();
    }
    //endregion

    private void initLayout(){
        mInflater.inflate(R.layout.layout_left_menu, this);
        mItemsList = (ListView) findViewById(R.id.menu_items_list);
        mProgress = (ProgressBar) findViewById(R.id.progress);

        mHeader = (ImageView) findViewById(R.id.header);
        userName = (TextView) findViewById(R.id.userName);
        userEmail = (TextView) findViewById(R.id.userEmail);

        mHeader.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                // do something
            }
        });
    }

    public void setSelectedSection(String idSection) {
        mItemsAdapter.setLastSelectedSection(idSection);
    }

    public void setmListener(OnClickMenu mListener) {
        this.mListener = mListener;
    }

    private void setData() {

        List sections = new ArrayList<>();

        sections.add(mContext.getString(R.string.home_id));
        sections.add(mContext.getString(R.string.login_id));
        sections.add(mContext.getString(R.string.settings_id));
        //.........
        //sections.add(mContext.getString(R.string.exit_id));

        mItemsAdapter = new MenuItemsAdapter(mContext, sections, new OnClickMenu() {
            @Override
            public void onClick(String id) {
                mItemsAdapter.setLastSelectedSection(id);

                if (mListener != null)
                    mListener.onClick(id);
            }
        });
        mItemsList.setAdapter(mItemsAdapter);
        mItemsList.setSelection(0);
        mItemsList.setItemChecked(0, true);
    }
}

您必须创建MenuItemAdapter。

    public class MenuItemsAdapter extends BaseAdapter {

    private Context mContext;
    private static String lastSelectedSection;

    private List mSections;
    private int currentTextcolor;
    private OnClickMenu mListener;

    public MenuItemsAdapter(Context context, List sections, OnClickMenu listener) {
        mContext = context;
        mSections = sections;
        mListener = listener;

        lastSelectedSection = sections.get(0);
    }

    @Override
    public int getCount() {
        return mSections.size();
    }

    @Override
    public String getItem(int position) {
        return mSections.get(position);
    }

    @Override
    public long getItemId(int position) {
        return position;
    }

    @Override
    public View getView(final int position, View convertView, ViewGroup parent) {
        return getCustomView(position, convertView, parent);
    }

    public View getCustomView(final int position, View convertView, ViewGroup parent) {
        final MenuItemHolder holder;

        if (convertView==null){

            LayoutInflater inflater = ((Activity) mContext).getLayoutInflater();
            convertView = inflater.inflate(R.layout.layout_left_menu_item, parent, false);
            holder = new MenuItemHolder(convertView);


            convertView.setTag(holder);

        }else {

            holder = (MenuItemHolder) convertView.getTag();

        }

        Resources r = mContext.getResources();
        int pxMarginSection = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 8, r.getDisplayMetrics());

        holder.position = position;

        holder.mLine.setVisibility(View.GONE);
        holder.mTitle.setTextColor(mContext.getResources().getColor(R.color.primary));
        holder.mIconView.setColorFilter(mContext.getResources().getColor(R.color.primary));

        if (mSections.get(position).equals(mContext.getString(R.string.login_id))) {
            holder.mIconView.setImageResource(R.drawable.ic_login_gp);
            // holder.mIconView.setColorFilter(mContext.getResources().getColor(R.color.primary));
            holder.mTitle.setText(mContext.getString(R.string.action_login));
            holder.mLine.setVisibility(View.VISIBLE);
            holder.mLayoutItem.setPadding(0, pxMarginSection, 0, pxMarginSection);
        } else if (mSections.get(position).equals(mContext.getString(R.string.settings_id))) {
            holder.mIconView.setImageResource(R.drawable.option);
            holder.mTitle.setText(mContext.getString(R.string.action_settings));
            holder.mLayoutItem.setPadding(0, pxMarginSection, 0, pxMarginSection);
            holder.mLine.setVisibility(View.VISIBLE);
        } else if (mSections.get(position).equals(mContext.getString(R.string.exit_id))) {
            holder.mIconView.setImageResource(R.drawable.shutdown);
            holder.mTitle.setText(mContext.getString(R.string.salir));
            holder.mLayoutItem.setPadding(0, pxMarginSection, 0, pxMarginSection);
            holder.mLine.setVisibility(View.VISIBLE);
        }

        holder.mLayoutItem.setOnTouchListener(new View.OnTouchListener() {
            @Override
            public boolean onTouch(View view, MotionEvent motionEvent) {

                switch (motionEvent.getActionMasked()){
                    case MotionEvent.ACTION_DOWN:
                        currentTextcolor = holder.mTitle.getCurrentTextColor();
                        holder.mLayoutItemSelect.setBackgroundColor(mContext.getResources().getColor(R.color.primary));
                        holder.mTitle.setTextColor(mContext.getResources().getColor(R.color.text_info));
                        holder.mIconView.setColorFilter(mContext.getResources().getColor(R.color.text_info));
                        return true;


                    case MotionEvent.ACTION_UP:

                        holder.mLayoutItemSelect.setBackgroundResource(R.color.bgLeftMenu);
                        holder.mTitle.setTextColor(currentTextcolor);
                        holder.mIconView.setColorFilter(mContext.getResources().getColor(R.color.primary));

                        mListener.onClick(mSections.get(position));
                        return true;

                    case MotionEvent.ACTION_CANCEL:

                        holder.mLayoutItemSelect.setBackgroundColor(mContext.getResources().getColor(R.color.bgLeftMenu));
                        holder.mTitle.setTextColor(currentTextcolor);
                        holder.mIconView.setColorFilter(mContext.getResources().getColor(R.color.primary));

                        return true;

                }

                return false;
            }
        });

        return convertView;

    }

    class MenuItemHolder {

        // butterKnife
        View view;
        @Bind(R.id.title)
        TextView mTitle;
        @Bind(R.id.icon)
        ImageView mIconView;
        @Bind(R.id.layoutItem)
        LinearLayout mLayoutItem;
        @Bind (R.id.rl_line)
        View mLine;
        @Bind(R.id.layoutItemSelect)
        LinearLayout mLayoutItemSelect;

        int position;

        public MenuItemHolder(View itemView) {
            ButterKnife.bind(this, itemView);
            view = itemView;
        }

    }

    public void setLastSelectedSection(String idSection) {
        lastSelectedSection = idSection;
    }
}

现在,您必须修改当前的活动:

    更改您的主要活动布局以使用DrawerLayout并添加自定义视图“ SimpleLeftMenuView”:

    
    
    // YOUR CURRENT LAYOUT
    
    
    
    
    
    

    活动课:

添加全局变量:

protected @Bind(R.id.navigation_view) SimpleLeftMenuView mLeftMenuView;
protected @Bind(R.id.drawerLayout) DrawerLayout mDrawerLayout;

设置onclick监听器。您可以根据ID进行操作:

mLeftMenuView.setmListener(new OnClickMenu() {
        @Override
        public void onClick(String id) {
            Log.d("MENU", "ic_menu_hamburger clicked: " + id);

            closeDrawer(null);

            if (id.equals(getString(R.string.settings_id))) {
                Intent intent = new Intent(MainActivity.this,
                        SettingsActivity.class);
                MainActivity.this.startActivity(intent);
            } else if (id.equals(getString(R.string.exit_id))) {
                // salir
                showRateDialogBeforeExit();
            }

        }
    });

我创建了自己的界面OnClickMenu:

public interface OnClickMenu {

   void onClick(String id);

}

并添加操作以从菜单图标打开抽屉:

@Override
public void onBackPressed() {
    if((mDrawerLayout) != null && (mDrawerLayout.isDrawerOpen(GravityCompat.START)))
        closeDrawer(null);
    else {
        super.onBackPressed();
    }
}

public void closeDrawer(DrawerLayout.DrawerListener listener) {
    mDrawerLayout.setDrawerListener(listener);
    mDrawerLayout.closeDrawers();
}

public void openDrawer() {
    mDrawerLayout.setDrawerListener(null);
    mDrawerLayout.openDrawer(GravityCompat.START);
}

菜单:

@Override
public boolean onCreateOptionsMenu(Menu menu) {

    getMenuInflater().inflate(R.menu.menu_home, menu);

    return true;
}

@Override
public boolean onOptionsItemSelected(MenuItem item) {
    switch (item.getItemId()) {
        case android.R.id.home:
            openDrawer();
            return true;
    }
    return super.onOptionsItemSelected(item);
}

添加到应用程序build.gradle

compile 'com.android.support:design:26.0.0'
compile 'com.jakewharton:butterknife:8.6.0'

将所有@Bind更改为@BindView

推荐阅读
Gbom2402851125
这个屌丝很懒,什么也没留下!
DevBox开发工具箱 | 专业的在线开发工具网站    京公网安备 11010802040832号  |  京ICP备19059560号-6
Copyright © 1998 - 2020 DevBox.CN. All Rights Reserved devBox.cn 开发工具箱 版权所有