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();
}