实现不改变activity，只切换View

抽取View界面的基类

利用面向对象多态的思路，实现通用

 

TitleManager.java 管理标题

 

package com.tsh.lottery.views;import android.app.Activity;import android.view.View;import android.view.View.OnClickListener;import android.widget.Button;import android.widget.RelativeLayout;import com.tsh.lottery.R;/** * 标题管理 * @author taoshihan * */public class TitleManager {    private RelativeLayout generalTitle,unloginTitle,loginTitle;    private Button title_login_btn,title_unlogin_btn;    private Activity activity;    //单例    private static TitleManager instance=new TitleManager();    private TitleManager(){}    public static TitleManager getInstance(){        return instance;    }    /**     * 初始化标题     * @param activity     */    public void init(Activity activity){        this.activity=activity;        generalTitle=(RelativeLayout) activity.findViewById(R.id.title_general);        loginTitle=(RelativeLayout) activity.findViewById(R.id.title_login);        unloginTitle=(RelativeLayout) activity.findViewById(R.id.title_unlogin);                title_login_btn=(Button) activity.findViewById(R.id.title_login_btn);        title_unlogin_btn=(Button) activity.findViewById(R.id.title_unlogin_btn);        setListener();    }    /**     * 设置点击事件     */    private void setListener() {        //登陆按钮        title_login_btn.setOnClickListener(new OnClickListener() {            @Override            public void onClick(View v) {                showLoginTitle();                                BaseView indexView=new IndexView(activity);                MiddleManager.getInstance().loadView(indexView);            }        });        //退出按钮        title_unlogin_btn.setOnClickListener(new OnClickListener() {            @Override            public void onClick(View v) {                showUnloginTitle();                                BaseView loginView=new LoginView(activity);                MiddleManager.getInstance().loadView(loginView);            }        });    }    /**     * 隐藏所有标题     */    public void hideTitle(){        generalTitle.setVisibility(View.GONE);        unloginTitle.setVisibility(View.GONE);        loginTitle.setVisibility(View.GONE);    }    /**     * 显示通用的标题     */    public void showGeneralTitle() {        hideTitle();        generalTitle.setVisibility(View.VISIBLE);    }    /**     * 显示未登录的标题     */    public void showUnloginTitle() {        hideTitle();        unloginTitle.setVisibility(View.VISIBLE);    }    /**     * 显示已经登陆的标题     */    public void showLoginTitle() {        hideTitle();        loginTitle.setVisibility(View.VISIBLE);    }}

 

MiddleManager.java 管理主体内容

package com.tsh.lottery.views;import android.view.View;import android.view.animation.AnimationUtils;import android.widget.RelativeLayout;import com.tsh.lottery.R;public class MiddleManager {    private RelativeLayout mainContainer;    //单例    private static MiddleManager manager=new MiddleManager();    private MiddleManager(){};    public static MiddleManager getInstance(){        return manager;    }    public void setMainContainer(RelativeLayout mainContainer) {        this.mainContainer = mainContainer;    }    /**     * 加载界面     */    public void loadView(BaseView baseView) {        mainContainer.removeAllViews();        View child=baseView.getView();        mainContainer.addView(child);        child.startAnimation(AnimationUtils.loadAnimation(mainContainer.getContext(), R.anim.left_to_right));    }}

BaseView.java

package com.tsh.lottery.views;import android.content.Context;import android.view.View;/** * 主体View基类 * @author taoshihan * */public abstract class BaseView {    public Context context;    public BaseView(Context context) {        this.context = context;    }    public abstract View getView();}

IndexView.java

package com.tsh.lottery.views;import android.content.Context;import android.util.AttributeSet;import android.view.View;import android.view.ViewGroup.LayoutParams;import android.widget.TextView;/** * 会员界面 * @author taoshihan * */public class IndexView extends BaseView{    public IndexView(Context context) {        super(context);    }    @Override    public View getView() {        TextView tv=new TextView(context);        LayoutParams params=new LayoutParams(LayoutParams.MATCH_PARENT,LayoutParams.WRAP_CONTENT);        tv.setLayoutParams(params);        tv.setText("我是会员界面");        return tv;    }}

 

 

MainActivity.java 管理容器

package com.tsh.lottery;import java.lang.reflect.Field;import android.app.Activity;import android.os.Bundle;import android.os.Handler;import android.os.Message;import android.view.Menu;import android.view.MenuInflater;import android.view.View;import android.view.ViewConfiguration;import android.view.animation.AnimationUtils;import android.widget.RelativeLayout;import com.tsh.lottery.views.BaseView;import com.tsh.lottery.views.IndexView;import com.tsh.lottery.views.LoginView;import com.tsh.lottery.views.MiddleManager;import com.tsh.lottery.views.TitleManager;public class MainActivity extends Activity {    private RelativeLayout mainContainer;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.il_main);        getActionBar();        setOverflowMenuQues();        initTitle();        initMiddle();    }    /**     * 初始化主体     */    public void initMiddle() {        mainContainer=(RelativeLayout) findViewById(R.id.il_main);        BaseView loginView=new LoginView(this);        MiddleManager.getInstance().setMainContainer(mainContainer);        MiddleManager.getInstance().loadView(loginView);    }    /**     * 初始化标题     */    private void initTitle() {        TitleManager manager=TitleManager.getInstance();        manager.init(this);        manager.showUnloginTitle();    }