Android 之打造仿微信页面切换公共方法及实现

来源：互联网发布：tik江苏泰微课网络课程编辑：程序博客网时间：2024/05/18 00:34

  1.切换调用：  private void setSelect(int i){    setTab(i);}private void setTab(i){    //全部设置为默认图片        ReSerImage();    switch(i){    case 0:     //功能1.setImageResouce(R.drawable.....);     break;   case 1:    //功能2.setImageResouce(R.drawable.....);    break;}private void ResetImage(){ 功能1.setImageResouce(R.drawable...);   //设置为默认图标 功能2.setImageResouce(R.drawable...);}//当是VerPager加滑动时，在SetSelect(i)调用VewPager.setCurrentItem(i);//在ViewPager的onPageSelected(int ago)方法里面调用：   int  currentItem=ViewPager.getCurrentItem();       SetTab(currentItem);

具体实现

//我们使用的是android v4包下的fragment,这里必须要继承自FragmentActivity，而不是Activitypublic class MainActivity extends FragmentActivity implements OnClickListener{    //底部的4个导航控件    private LinearLayout mTabWeixin;    private LinearLayout mTabFrd;    private LinearLayout mTabAddress;    private LinearLayout mTabSetting;    //底部4个导航控件中的图片按钮    private ImageButton mImgWeixin;    private ImageButton mImgFrd;    private ImageButton mImgAddress;    private ImageButton mImgSetting;    //初始化4个Fragment    private Fragment tab01;    private Fragment tab02;    private Fragment tab03;    private Fragment tab04;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        requestWindowFeature(Window.FEATURE_NO_TITLE);        setContentView(R.layout.activity_main);        initView();//初始化所有的view        initEvents();        setSelect(0);//默认显示微信聊天界面    }    private void initEvents() {        mTabWeixin.setOnClickListener(this);        mTabFrd.setOnClickListener(this);        mTabAddress.setOnClickListener(this);        mTabSetting.setOnClickListener(this);    }    private void initView() {        mTabWeixin = (LinearLayout)findViewById(R.id.id_tab_weixin);        mTabFrd = (LinearLayout)findViewById(R.id.id_tab_frd);        mTabAddress = (LinearLayout)findViewById(R.id.id_tab_address);        mTabSetting = (LinearLayout)findViewById(R.id.id_tab_setting);        mImgWeixin = (ImageButton)findViewById(R.id.id_tab_weixin_img);        mImgFrd = (ImageButton)findViewById(R.id.id_tab_frd_img);        mImgAddress = (ImageButton)findViewById(R.id.id_tab_address_img);        mImgSetting = (ImageButton)findViewById(R.id.id_tab_setting_img);    }    @Override    public void onClick(View v) {        resetImg();        switch (v.getId()) {        case R.id.id_tab_weixin://当点击微信按钮时，切换图片为亮色，切换fragment为微信聊天界面            setSelect(0);            break;        case R.id.id_tab_frd:            setSelect(1);            break;        case R.id.id_tab_address:            setSelect(2);            break;        case R.id.id_tab_setting:            setSelect(3);            break;        default:            break;        }    }    /*     * 将图片设置为亮色的；切换显示内容的fragment     * */    private void setSelect(int i) {        FragmentManager fm = getSupportFragmentManager();        FragmentTransaction transaction = fm.beginTransaction();//创建一个事务        hideFragment(transaction);//我们先把所有的Fragment隐藏了，然后下面再开始处理具体要显示的Fragment        switch (i) {        case 0:            if (tab01 == null) {                tab01 = new WeixinFragment();                /*                 * 将Fragment添加到活动中，public abstract FragmentTransaction add (int containerViewId, Fragment fragment)                *containerViewId即为Optional identifier of the container this fragment is to be placed in. If 0, it will not be placed in a container.                 * */                transaction.add(R.id.id_content, tab01);//将微信聊天界面的Fragment添加到Activity中            }else {                transaction.show(tab01);            }            mImgWeixin.setImageResource(R.drawable.tab_weixin_pressed);            break;        case 1:            if (tab02 == null) {                tab02 = new FrdFragment();                transaction.add(R.id.id_content, tab02);            }else {                transaction.show(tab02);            }            mImgFrd.setImageResource(R.drawable.tab_find_frd_pressed);            break;        case 2:            if (tab03 == null) {                tab03 = new AddressFragment();                transaction.add(R.id.id_content, tab03);            }else {                transaction.show(tab03);            }            mImgAddress.setImageResource(R.drawable.tab_address_pressed);            break;        case 3:            if (tab04 == null) {                tab04 = new SettingFragment();                transaction.add(R.id.id_content, tab04);            }else {                transaction.show(tab04);            }            mImgSetting.setImageResource(R.drawable.tab_settings_pressed);            break;        default:            break;        }        transaction.commit();//提交事务    }    /*     * 隐藏所有的Fragment     * */    private void hideFragment(FragmentTransaction transaction) {        if (tab01 != null) {            transaction.hide(tab01);        }        if (tab02 != null) {            transaction.hide(tab02);        }        if (tab03 != null) {            transaction.hide(tab03);        }        if (tab04 != null) {            transaction.hide(tab04);        }    }    private void resetImg() {        mImgWeixin.setImageResource(R.drawable.tab_weixin_normal);        mImgFrd.setImageResource(R.drawable.tab_find_frd_normal);        mImgAddress.setImageResource(R.drawable.tab_address_normal);        mImgSetting.setImageResource(R.drawable.tab_settings_normal);    }}

1 0