导航栏自定义控件

来源：互联网发布：mhp3数据库编辑：程序博客网时间：2024/05/17 04:51

每一个app都会有底部导航栏，那么就写一个自定义控件，每次用的时候，直接拿过来用就行了，不需要每次都要去写了

public class NavigationTabView extends LinearLayout {    private ImageView iv_tab_icon;    public TextView iv_tab_desc;    public TextView tv_circle_count;    public ImageView iv_red_point;    private boolean isSelected;    private Drawable navigation_icon_nomal;    private Drawable navigation_icon_selected;    private int navigation_name_nomal;    private int navigation_name_selected;    public NavigationTabView(Context context, AttributeSet attrs) {        super(context, attrs);        View.inflate(context, R.layout.layout_navigation_tab, this);        iv_tab_icon = (ImageView) findViewById(R.id.iv_main_tab_icon);        tv_circle_count = (TextView) findViewById(R.id.tv_circle_count);        iv_red_point = (ImageView) findViewById(R.id.iv_red_point);        iv_tab_desc = (TextView) findViewById(R.id.iv_main_tab_desc);        TypedArray typeArray = context.obtainStyledAttributes(attrs, R.styleable.NavigationTabView);        navigation_name_nomal = typeArray.getColor(R.styleable.NavigationTabView_navigation_name_nomal, Color.RED);        navigation_name_selected = typeArray.getColor(R.styleable.NavigationTabView_navigation_name_selected, Color.RED);        navigation_icon_nomal = typeArray.getDrawable(R.styleable.NavigationTabView_navigation_icon_nomal);        navigation_icon_selected = typeArray.getDrawable(R.styleable.NavigationTabView_navigation_icon_selected);        setSelected(false);        typeArray.recycle();        this.setGravity(Gravity.CENTER_HORIZONTAL);    }    /**     * 判断当前计数view是否显示     *     * @return     */    public boolean isShowCount() {        return tv_circle_count.getVisibility() == VISIBLE;    }    /**     * 设置当前view是否显示     *     * @param isShowCount 是否显示     * @param num         显示的数量     */    public void setShowCount(boolean isShowCount, int num) {        if (isShowCount) {            tv_circle_count.setVisibility(View.VISIBLE);            String numStr = String.valueOf(num);            if (num > 99) {                numStr = "99+";            }            tv_circle_count.setText(numStr);        } else {            tv_circle_count.setVisibility(View.INVISIBLE);        }    }    /**     * 设置是否显示小红点     *     * @param isShow 是否显示     */    public void setShowCountPoint(boolean isShow) {        iv_red_point.setVisibility(isShow ? View.VISIBLE : View.INVISIBLE);    }    /**     * 判断当前tab的状态     *     * @return boolean 是否选中     */    public boolean isSelected() {        return isSelected;    }    /**     * 设置tab的状态     *     * @param isSelected 是否选中     */    public void setSelected(boolean isSelected) {        if (isSelected) {            iv_tab_icon.setImageDrawable(navigation_icon_selected);            iv_tab_desc.setTextColor(navigation_name_selected);        } else {            iv_tab_icon.setImageDrawable(navigation_icon_nomal);            iv_tab_desc.setTextColor(navigation_name_nomal);        }        this.isSelected = isSelected;    }}

把这个自定义控件放到布局中就行了，在布局中自定义button选中状态和未选中状态的标志即可

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