fragment 的切换并且解决重叠的问题

package com.dofun.dofunmusic.main;

import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.os.PersistableBundle;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentTransaction;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.util.Log;
import android.view.KeyEvent;
import android.view.MenuItem;
import android.view.View;
import android.view.WindowManager;
import android.view.inputmethod.EditorInfo;
import android.view.inputmethod.InputMethodManager;
import android.widget.Button;
import android.widget.EditText;
import android.widget.FrameLayout;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TextView;
import android.widget.Toast;

import com.dofun.dofunmusic.utils.OkHttpUtils;
import com.dofun.dofunmusic.utils.Utils;
import com.dofun.dofunmusic.view.fragment.NewSongsRankFragment;
import com.dofun.dofunmusic.view.fragment.PersonalRecommendFragment;
import com.dofun.
4000
dofunmusic.view.fragment.RecommandSongsFragment;
import com.ximalaya.ting.android.opensdk.constants.DTransferConstants;
import com.ximalaya.ting.android.opensdk.datatrasfer.CommonRequest;
import com.ximalaya.ting.android.opensdk.datatrasfer.IDataCallBack;
import com.ximalaya.ting.android.opensdk.model.album.AlbumList;
import com.ximalaya.ting.android.opensdk.model.album.SearchAlbumList;
import com.ximalaya.ting.android.opensdk.model.category.CategoryList;
import com.ximalaya.ting.android.opensdk.model.tag.TagList;
import com.ximalaya.ting.android.opensdk.player.XmPlayerManager;

import net.tsz.afinal.FinalBitmap;
import net.tsz.afinal.FinalHttp;

import java.util.HashMap;
import java.util.Map;

import butterknife.Bind;
import butterknife.ButterKnife;
import butterknife.OnClick;

public class CloudMusicActivity extends AppCompatActivity {

private static final String TAG = "CloudMusicActivity";

@Bind(R.id.recommendation_id)
TextView recommendationId;
@Bind(R.id.recommend_songs_id)
TextView recommendSongsId;
@Bind(R.id.new_song_list_id)
TextView newSongListId;
@Bind(R.id.search)
EditText search;
@Bind(R.id.toolbar)
Toolbar toolbar;
@Bind(R.id.details)
FrameLayout details;
@Bind(R.id.recommend_first_imv)
ImageView recommendFirstImv;
@Bind(R.id.recommend_second_imv)
ImageView recommendSecondImv;
@Bind(R.id.recommend_third_imv)
ImageView recommendThirdImv;
@Bind(R.id.test)
Button test;
@Bind(R.id.cloud_rootView)
LinearLayout cloudRootView;

private FragmentManager fragmentManager;
private PersonalRecommendFragment personalRecommendFragment;
private RecommandSongsFragment recommandSongsFragment;
private NewSongsRankFragment newSongsRankFragment;
public static final int FRAGMENT_ONE = 0;
public static final int FRAGMENT_TWO = 1;
public static final int FRAGMENT_THREE = 2;

private boolean flag_dn = false;
private boolean dnflag = false;
private Handler handler = new Handler();
private static SharedPreferences sharedPreferences;

private Context mContext;
private FinalBitmap mFinalBitmap;
private FinalHttp mFinalHttp;
private XmPlayerManager mPlayerManager;
private CommonRequest mXimalaya;
private String mAppSecret = "3e35490f09dd408efac49604a9a98cc9";
private CategoryList mCategoryList = null;
private final int ALL_CATEGORY = 1;
private final int ALL_CATEGORY_ERROR = 1002;
private final int GETMUSICTAGLIST = 1003;
private final int SearchAlbumData = 1004;
private final int SearchDataError = 1005;
private TagList mMusicTagList = new TagList();
private SearchAlbumList mSearchAlbumList = new SearchAlbumList();

private Handler mHandler = new Handler() {
public void handleMessage(Message msg) {
switch (msg.what) {
case ALL_CATEGORY:
if ((mCategoryList != null) && (mCategoryList.getCategories().size() > 0)) {
for (int i = 0; i < mCategoryList.getCategories().size(); i++) {
Log.e(TAG, "mCategoryList.getCategories().get(" + i + ")=" + mCategoryList.getCategories().get(i));
}
}
break;
case ALL_CATEGORY_ERROR:
Toast.makeText(CloudMusicActivity.this, "获取云音乐失败,稍后重试!", Toast.LENGTH_SHORT).show();
break;
case GETMUSICTAGLIST:

Log.e(TAG, "------获取MusicTagList----onSuccess!!!");
for (int i = 0; i < mMusicTagList.getTagList().size(); i++) {
Log.e(TAG, "mMusicTagList.getTagList().get(" + i + ")=" + mMusicTagList.getTagList().get(i));
}
break;
case SearchAlbumData:
mSearchAlbumList = (SearchAlbumList) msg.obj;
Log.e(TAG,"-----关键字搜索的返回专辑列表个数="+mSearchAlbumList.getAlbums().size());
break;
case SearchDataError:
Toast.makeText(CloudMusicActivity.this,"为获取到相关搜索内容,稍后再试!",Toast.LENGTH_SHORT).show();
break;

}
}
};

@Override
protected void onCreate(Bundle savedInstanceState) {
//解决fragment 重叠的问题
fragmentManager = getSupportFragmentManager();
if(savedInstanceState !=null){
personalRecommendFragment = (PersonalRecommendFragment) fragmentManager.findFragmentByTag("personalRecommendFragment_tag");
recommandSongsFragment = (RecommandSongsFragment) fragmentManager.findFragmentByTag("recommandSongsFragment_tag");
newSongsRankFragment = (NewSongsRankFragment) fragmentManager.findFragmentByTag("newSongRankFragment_tag");
}

super.onCreate(savedInstanceState);
MusicApplication.changeTheme(this);
setContentView(R.layout.activity_cloud_music);
ButterKnife.bind(this);     //注解
toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);

//        choicePopular.getPaint().setFlags(Paint.UNDERLINE_TEXT_FLAG); //下划线
//        choicePopular.getPaint().setAntiAlias(true);//抗锯齿
getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_HIDDEN);
sharedPreferences = getSharedPreferences("userStyle", Context.MODE_PRIVATE);
boolean flag = sharedPreferences.getBoolean("isNigtht", false);
toolbar.setNavigationIcon(R.mipmap.action_back_normal);

initView();

//初始化喜马拉雅SDK
initXiMaLaYaSDK();

if (OkHttpUtils.isNetworkAvailable(mContext)) {
Log.e(TAG, "------网络已经连接-----");
//获取喜马拉雅数据的分类(资讯,音乐,有声书,娱乐,等等),音乐Category id =2;可以直接获取音乐
getMusic_Data();

} else {
Toast.makeText(CloudMusicActivity.this, "hi,没有网络哦，请检查网络", Toast.LENGTH_SHORT).show();
}
}

private void getMusic_Data() {

}

private void initXiMaLaYaSDK() {

mContext = CloudMusicActivity.this;
mFinalBitmap = FinalBitmap.create(mContext.getApplicationContext());
mFinalBitmap.configLoadingImage(R.mipmap.ic_launcher);
mFinalBitmap.configLoadfailImage(R.mipmap.ic_launcher);
mFinalHttp = new FinalHttp();
//初始化接口
mXimalaya = CommonRequest.getInstanse();
mXimalaya.init(mContext, mAppSecret);
mXimalaya.setDefaultPagesize(50);
mPlayerManager = XmPlayerManager.getInstance(mContext);//获取内容发到管理器
mPlayerManager.init();
mPlayerManager.getPlayerStatus();
}

private void initView() {
Utils.setColor(this, getResources().getColor(R.color.hotpink));    //设置状态栏颜色
recommendationId.setTypeface(MusicApplication.typeface);
recommendSongsId.setTypeface(MusicApplication.typeface);
newSongListId.setTypeface(MusicApplication.typeface);

showFragment(FRAGMENT_ONE);

search.setOnEditorActionListener(new TextView.OnEditorActionListener() {
@Override
public boolean onEditorAction(TextView textView, int actionId, KeyEvent keyEvent) {
if (actionId == EditorInfo.IME_ACTION_SEARCH) {
//隐藏软键盘
InputMethodManager imm = (InputMethodManager) mContext.getSystemService(Context.INPUT_METHOD_SERVICE);
imm.toggleSoftInput(0, InputMethodManager.HIDE_NOT_ALWAYS);
String  tv_search = search.getText().toString();

getSearchAlbumData(tv_search);// 搜索框 输入框访问喜马拉雅

}
return true;
}
});
}

private void getSearchAlbumData(String tv_search) {
Map<String, String> map = new HashMap<String, String>();
map.put(DTransferConstants.SEARCH_KEY, tv_search);
map.put(DTransferConstants.CATEGORY_ID, "");
map.put(DTransferConstants.PAGE, ""+1);
CommonRequest.getSearchedAlbums(map, new IDataCallBack<SearchAlbumList>() {
@Override
public void onSuccess(SearchAlbumList searchAlbumList) {

Log.e(TAG, "Search数据长度--onSuccess " + (searchAlbumList != null));

if (searchAlbumList != null && searchAlbumList.getAlbums() != null && searchAlbumList.getAlbums().size() != 0) {

Log.e(TAG, "Search测试3----------");
Message msg = new Message();
msg.what = SearchAlbumData;
msg.obj = searchAlbumList;
mHandler.sendMessage(msg);

}
}

public void onError(int i, String s) {

Log.e(TAG, "Search数据长度--onError " + i + ", " + s);
Message msg = new Message();
msg.what = SearchDataError;
mHandler.sendMessage(msg);

}
});

}

@OnClick({R.id.toolbar,R.id.details,R.id.recommendation_id, R.id.recommend_songs_id, R.id.new_song_list_id, R.id.test})
public void onClick(View view) {
switch (view.getId()) {
case R.id.toolbar:
//隐藏软键盘
InputMethodManager imm3 = (InputMethodManager)
getSystemService(Context.INPUT_METHOD_SERVICE);
imm3.hideSoftInputFromWindow(view.getWindowToken(), 0);
break;
case R.id.details:
InputMethodManager imm2 = (InputMethodManager)
getSystemService(Context.INPUT_METHOD_SERVICE);
imm2.hideSoftInputFromWindow(view.getWindowToken(), 0);
break;
case R.id.recommendation_id:
showFragment(FRAGMENT_ONE);
break;
case R.id.recommend_songs_id:
showFragment(FRAGMENT_TWO);
break;
case R.id.new_song_list_id:
showFragment(FRAGMENT_THREE);
break;
//测试昼夜模式
case R.id.test:
handler.postDelayed(new Runnable() {
@Override
public void run() {
SharedPreferences.Editor editor = sharedPreferences.edit();
if (MusicApplication.isChange) {
Log.e(TAG, "白天模式" + MusicApplication.isChange);
flag_dn = MusicApplication.isChange = false;
Log.e(TAG, "白天模式flag：：：" + flag_dn);
} else {
Log.e(TAG, "夜间模式" + MusicApplication.isChange);
flag_dn = MusicApplication.isChange = true;
Log.e(TAG, "夜间模式flag：：：：" + flag_dn);
}
editor.putBoolean("isNigtht", flag_dn);
editor.commit();
CloudMusicActivity.this.startActivity(new Intent(CloudMusicActivity.this, CloudMusicActivity.class));
//CloudMusicActivity.this.recreate();
finish();
}
}, 0);
break;
}
}

private void showFragment(int index) {
FragmentTransaction transactions = fragmentManager.beginTransaction();
hideFragment(transactions);
boolean dnflag = sharedPreferences.getBoolean("isNigtht", false);
switch (index) {
case FRAGMENT_ONE:
if (personalRecommendFragment == null) {

personalRecommendFragment = new PersonalRecommendFragment();
transactions.add(R.id.details, personalRecommendFragment,"personalRecommendFragment_tag");
} else {
transactions.show(personalRecommendFragment);
}
if (dnflag) {
recommendationId.setTextColor(getResources().getColor(R.color.md_pink_300));
recommendSongsId.setTextColor(getResources().getColor(R.color.md_white_1000));
newSongListId.setTextColor(getResources().getColor(R.color.md_white_1000));
} else {
recommendationId.setTextColor(getResources().getColor(R.color.md_green_500));
recommendSongsId.setTextColor(getResources().getColor(R.color.md_black_1000));
newSongListId.setTextColor(getResources().getColor(R.color.md_black_1000));

}
recommendFirstImv.setImageResource(R.mipmap.research_development_icon_green);
recommendSecondImv.setImageResource(R.mipmap.recommend_songs_icon_gray);
recommendThirdImv.setImageResource(R.mipmap.new_song_list_icon_gray);

break;
case FRAGMENT_TWO:
if (recommandSongsFragment == null) {
recommandSongsFragment = new RecommandSongsFragment();
transactions.add(R.id.details, recommandSongsFragment,"recommandSongsFragment_tag");
} else {
transactions.show(recommandSongsFragment);
}
if (dnflag) {
recommendationId.setTextColor(getResources().getColor(R.color.md_white_1000));
recommendSongsId.setTextColor(getResources().getColor(R.color.md_pink_300));
newSongListId.setTextColor(getResources().getColor(R.color.md_white_1000));
} else {
recommendationId.setTextColor(getResources().getColor(R.color.md_black_1000));
recommendSongsId.setTextColor(getResources().getColor(R.color.md_green_500));
newSongListId.setTextColor(getResources().getColor(R.color.md_black_1000));

}

recommendFirstImv.setImageResource(R.mipmap.research_development_icon_gray);
recommendSecondImv.setImageResource(R.mipmap.recommend_songs_icon_green);
recommendThirdImv.setImageResource(R.mipmap.new_song_list_icon_gray);
break;
case FRAGMENT_THREE:
if (newSongsRankFragment == null) {
newSongsRankFragment = new NewSongsRankFragment();
transactions.add(R.id.details, newSongsRankFragment,"newSongRankFragment_tag");
} else {
transactions.show(newSongsRankFragment);
}
if (dnflag) {
recommendationId.setTextColor(getResources().getColor(R.color.md_white_1000));
recommendSongsId.setTextColor(getResources().getColor(R.color.md_white_1000));
newSongListId.setTextColor(getResources().getColor(R.color.md_pink_300));
} else {
recommendationId.setTextColor(getResources().getColor(R.color.md_black_1000));
recommendSongsId.setTextColor(getResources().getColor(R.color.md_black_1000));
newSongListId.setTextColor(getResources().getColor(R.color.md_green_500));

}
recommendFirstImv.setImageResource(R.mipmap.research_development_icon_gray);
recommendSecondImv.setImageResource(R.mipmap.recommend_songs_icon_gray);
recommendThirdImv.setImageResource(R.mipmap.new_song_list_icon_green);
break;
}
transactions.commit();
}

private void hideFragment(FragmentTransaction transactions) {

if (personalRecommendFragment != null) {
transactions.hide(personalRecommendFragment);
}
if (recommandSongsFragment != null) {
transactions.hide(recommandSongsFragment);
}
if (newSongsRankFragment != null) {
transactions.hide(newSongsRankFragment);
}

}

@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case android.R.id.home:
Intent mIntent = new Intent(this, MainActivity.class);
//mIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
startActivity(mIntent);
finish();
break;

default:
break;
}
return super.onOptionsItemSelected(item);
}

@Override
public void onBackPressed() {
super.onBackPressed();
Intent mIntent = new Intent(this, MainActivity.class);
//mIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
startActivity(mIntent);
finish();
}
}