Android Fragment 参数传递与动态布局

package org.metrox.drawlayoutdemo;

import android.os.Bundle;
import android.support.v4.app.FragmentManager;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.ListView;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;

public class MainActivity extends AppCompatActivity {

private String[] mPlanetTitles;
private DrawerLayout mDrawerLayout;
private ListView mDrawerList;
private CharSequence mTitle;
private List<String> BackStackTitles;
FragmentManager fragmentManager;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.drawlayout);
BackStackTitles = new ArrayList<String>();
BackStackTitles.add(getSupportActionBar().getTitle().toString());
//得到标题集合
mPlanetTitles = getResources().getStringArray(R.array.planets_array);
//得到侧滑菜单布局
mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
//得到列表项布局
mDrawerList = (ListView) findViewById(R.id.left_drawer);

//添加列表数据适配器
mDrawerList.setAdapter(new ArrayAdapter<String>(this,
android.R.layout.simple_list_item_1, mPlanetTitles));
//添加列表项单击事件监听
mDrawerList.setOnItemClickListener(new DrawerItemClickListener());

}

/*
*   列表项事件监听
*/
private class DrawerItemClickListener implements ListView.OnItemClickListener {
@Override
public void onItemClick(AdapterView parent, View view, int position, long id) {
selectItem(position);
}
}

/*自定义点击事件*/
private void selectItem(int position) {
//保存标题
mTitle =  mPlanetTitles[position] ;
//生成Fragment并替换已存在的Fragment
CustomeFragment frg = new CustomeFragment();
List<String> fields =  new ArrayList<String>();
Collections.addAll(fields,getResources().getStringArray(R.array.class_array));
fragmentManager = getSupportFragmentManager();
fragmentManager.beginTransaction()
.addToBackStack(mTitle.toString())
.replace(R.id.content_frame, CustomeFragment.newInstance(fields))
.commit();

BackStackTitles.add(mTitle.toString());
//高亮显示选中项
mDrawerList.setItemChecked(position, true);
//改变标题
setTitle(mTitle.toString());
//关闭侧滑菜单
mDrawerLayout.closeDrawer(mDrawerList);
}

/*修改标题*/
@Override
public void setTitle(CharSequence title) {
mTitle = title;
//得到标题栏，并修改标题
getSupportActionBar().setTitle(mTitle);
}

//处理后退键事件
@Override
public void onBackPressed() {
super.onBackPressed();
//得到暂时存放FRAGMENT的回退栈的数量
int count = getSupportFragmentManager().getBackStackEntryCount();
//因为栈是先进后出的原理,所以当前数量就是现在后退的那个FRAGMENT
setTitle(BackStackTitles.get(count));
}
}

package org.metrox.drawlayoutdemo;

import android.graphics.Color;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.ListView;
import android.widget.Toast;

import java.util.ArrayList;
import java.util.List;
public class CustomeFragment extends Fragment {

ArrayAdapter adapter;
//实例化带参数Fragment
public static CustomeFragment newInstance(List<String> fields) {
CustomeFragment fragment = new CustomeFragment();
Bundle args = new Bundle();
args.putStringArrayList("fields", (ArrayList<String>) fields);
fragment.setArguments(args);
return fragment;
}

@Override
public void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if(getArguments() != null){
List<String> fields = getArguments().getStringArrayList("fields");
adapter = new ArrayAdapter(getActivity(),android.R.layout.simple_list_item_1,fields);

}
}

@Nullable
@Override
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
//inflate第二个参数为容器，如果布局文件中已有FrameLayout，此处应为null
//不然会报RemoveView错误
View v =   inflater.inflate(R.layout.basefragment,null);
ListView  lv = (ListView) v.findViewById(R.id.lv);
lv.setAdapter(adapter);
return v;
}

private  List<View> initControls(String title) {
List<View> views = new ArrayList<View>();
Button btn = new Button(getActivity());
btn.setText(title);
btn.setTextColor(Color.RED);
btn.setBackgroundColor(Color.YELLOW);
btn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Toast.makeText(v.getContext(),
((Button)v).getText(), Toast.LENGTH_SHORT).show();
}
});
views.add(btn);
return views;
}

@Override
public void onDestroy() {
super.onDestroy();
}

@Override
public void onDestroyView() {
super.onDestroyView();
}

}