package com.wenming.weiswift.ui.login.activity;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.graphics.Color;
import android.os.Bundle;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentTransaction;
import android.support.v7.app.AlertDialog;
import android.support.v7.app.AppCompatActivity;
import android.view.KeyEvent;
import android.view.View;
import android.view.inputmethod.InputMethodManager;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.RelativeLayout;
import com.wenming.weiswift.MyApplication;
import com.wenming.weiswift.R;
import com.wenming.weiswift.ui.common.BarManager;
import com.wenming.weiswift.ui.common.StatusBarUtils;
import com.wenming.weiswift.ui.login.fragment.discovery.DiscoverFragment;
import com.wenming.weiswift.ui.login.fragment.home.HomeFragment;
import com.wenming.weiswift.ui.login.fragment.message.MessageFragment;
import com.wenming.weiswift.ui.login.fragment.post.PostActivity;
import com.wenming.weiswift.ui.login.fragment.profile.ProfileFragment;
import com.wenming.weiswift.utils.LogUtil;
import com.wenming.weiswift.utils.SharedPreferencesUtil;
import java.lang.reflect.Field;
public class MainActivity extends AppCompatActivity {
/**
* 首页fragment的标识
*/
private static final String HOME_FRAGMENT = "home";
/**
* 消息fragment的标识
*/
private static final String MESSAGE_FRAGMENT = "message";
/**
* 发现fragment的标识
*/
private static final String DISCOVERY_FRAGMENT = "discovery";
/**
* 关于我fragment的标识
*/
private static final String PROFILE_FRAGMENT = "profile";
/**
* 标识处于哪个fragment
*/
private String mCurrentIndex;
/**
* 上下文
*/
private Context mContext;
/**
* 首页fragment
*/
private HomeFragment mHomeFragment;
/**
* 消息fragment
*/
private MessageFragment mMessageFragment;
/**
* 发现fragment
*/
private DiscoverFragment mDiscoverFragment;
/**
* 关于我fragment
*/
private ProfileFragment mProfileFragment;
/**
* 管理fragment的类
*/
private FragmentManager mFragmentManager;
/**
* 底部icon的点击区域，分别标识首页， 消息，发现，关于我
*/
private RelativeLayout mHomeTab, mMessageTab, mDiscoeryTab, mProfile;
/**
* 发微博按钮
*/
private ImageView mPostTab;
/**
* 标识此Activity是否来自AccoutActivity的跳转
*/
private boolean mComeFromAccoutActivity;
/**
* 底部导航栏
*/
private LinearLayout mButtonBar;
/**
* 对fragment进行添加,移除,替换,以及执行其他动作。
*/
private FragmentTransaction mTransaction;
/**
* 管理顶部与底部的导航栏的显示与隐藏
*/
private BarManager mBarManager;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.mainactivity_layout);
mContext = this;
mHomeTab = (RelativeLayout) findViewById(R.id.tv_home);
mMessageTab = (RelativeLayout) findViewById(R.id.tv_message);
mDiscoeryTab = (RelativeLayout) findViewById(R.id.tv_discovery);
mProfile = (RelativeLayout) findViewById(R.id.tv_profile);
mPostTab = (ImageView) findViewById(R.id.fl_post);
mButtonBar = (LinearLayout) findViewById(R.id.buttonBarId);
//mSnackBarContainer = (CoordinatorLayout) findViewById(R.id.coordinatorLayoutId);
//LogReport.getInstance().upload(mContext);
mBarManager = new BarManager(mContext);
mFragmentManager = getSupportFragmentManager();
mComeFromAccoutActivity = getIntent().getBooleanExtra("comeFromAccoutActivity", false);
//如果是从崩溃中恢复，还需要加载之前的缓存
if (savedInstanceState != null) {
restoreFragment(savedInstanceState);
} else {
setTabFragment(HOME_FRAGMENT);
}
setUpListener();
boolean setNightMode = (boolean) SharedPreferencesUtil.get(this, "setNightMode", false);
if (!setNightMode) {
StatusBarUtils.from(this)
.setTransparentStatusbar(true)
.setStatusBarColor(Color.parseColor("#FFFFFF"))
.setLightStatusBar(true)
.process(this);
}else {
StatusBarUtils.from(this)
.setTransparentStatusbar(true)
.setStatusBarColor(Color.parseColor("#262626"))
.process(this);
}
}
@Override
protected void onDestroy() {
fixInputMethodManagerLeak(this);
super.onDestroy();
}
/**
* 如果fragment因为内存不够或者其他原因被销毁掉，在这个方法中执行恢复操作
*/
private void restoreFragment(Bundle savedInstanceState) {
mCurrentIndex = savedInstanceState.getString("index");
mHomeFragment = (HomeFragment) mFragmentManager.findFragmentByTag(HOME_FRAGMENT);
mMessageFragment = (MessageFragment) mFragmentManager.findFragmentByTag(MESSAGE_FRAGMENT);
mDiscoverFragment = (DiscoverFragment) mFragmentManager.findFragmentByTag(DISCOVERY_FRAGMENT);
mProfileFragment = (ProfileFragment) mFragmentManager.findFragmentByTag(PROFILE_FRAGMENT);
switchToFragment(mCurrentIndex);
}
/**
* Activity被销毁的时候，要记录当前处于哪个页面
*
* @param outState
*/
@Override
protected void onSaveInstanceState(Bundle outState) {
outState.putString("index", mCurrentIndex);
super.onSaveInstanceState(outState);
}
/**
* 设计底部导航栏5个按钮的点击事件
*/
private void setUpListener() {
mHomeTab.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
setTabFragment(HOME_FRAGMENT);
}
});
mMessageTab.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
setTabFragment(MESSAGE_FRAGMENT);
}
});
mPostTab.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent(MainActivity.this, PostActivity.class);
startActivity(intent);
}
});
mDiscoeryTab.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
setTabFragment(DISCOVERY_FRAGMENT);
}
});
mProfile.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
setTabFragment(PROFILE_FRAGMENT);
}
});
}
/**
* 执行切换fragment 的操作
* 注意：
* 1. 切换页面的时候，还要调用showBottomBar来保证底部导航栏的显示
*
* @param index
* @param screenRotate
*/
private void switchToFragment(String index) {
mButtonBar.clearAnimation();
mButtonBar.setVisibility(View.VISIBLE);
mTransaction = mFragmentManager.beginTransaction();
hideAllFragments(mTransaction);
switch (index) {
case HOME_FRAGMENT:
showHomeFragment();
break;
case MESSAGE_FRAGMENT:
showMessageFragment();
break;
case DISCOVERY_FRAGMENT:
showDiscoveryFragment();
break;
case PROFILE_FRAGMENT:
showProfileFragment();
break;
}
mCurrentIndex = index;
mTransaction.commit();
}
/**
* 切换到首页模块
*/
private void showHomeFragment() {
mHomeTab.setSelected(true);
if (mHomeFragment == null) {
mHomeFragment = HomeFragment.newInstance(mComeFromAccoutActivity);
mTransaction.add(R.id.contentLayout, mHomeFragment, HOME_FRAGMENT);
} else {
mTransaction.show(mHomeFragment);
if (mCurrentIndex.equals(HOME_FRAGMENT) && mHomeFragment != null && mHomeFragment.mRecyclerView != null) {
mHomeFragment.scrollToTop(false);
}
}
mHomeFragment.setOnBarListener(new HomeFragment.onButtonBarListener() {
@Override
public void showButtonBar() {
mBarManager.showBottomBar(mButtonBar);
}
@Override
public void hideButtonBar() {
mBarManager.hideBottomBar(mButtonBar);
}
});
}
/**
* 切换到消息模块
*/
private void showMessageFragment() {
mMessageTab.setSelected(true);
if (mMessageFragment == null) {
mMessageFragment = new MessageFragment();
mTransaction.add(R.id.contentLayout, mMessageFragment, MESSAGE_FRAGMENT);
} else {
mTransaction.show(mMessageFragment);
}
}
/**
* 切换到发现模块
*/
private void showDiscoveryFragment() {
mDiscoeryTab.setSelected(true);
if (mDiscoverFragment == null) {
mDiscoverFragment = new DiscoverFragment();
mTransaction.add(R.id.contentLayout, mDiscoverFragment, DISCOVERY_FRAGMENT);
} else {
mTransaction.show(mDiscoverFragment);
}
}
/**
* 切换到关于我模块
*/
private void showProfileFragment() {
mProfile.setSelected(true);
if (mProfileFragment == null) {
mProfileFragment = new ProfileFragment();
mTransaction.add(R.id.contentLayout, mProfileFragment, PROFILE_FRAGMENT);
} else {
mTransaction.show(mProfileFragment);
}
}
/**
* 显示指定的fragment，并且把对应的导航栏的icon设置成高亮状态
* 注意：
* 1. 如果选项卡已经位于当前页，则执行其他操作
*
* @param index 需要切换到的具体页面
*/
private void setTabFragment(String index) {
if (mHomeFragment != null) {
mBarManager.showBottomBar(mButtonBar);
}
if (!index.equals(mCurrentIndex)) {
switchToFragment(index);
} else {
alreadyAtFragment(mCurrentIndex);
}
}
/**
* 如果选项卡已经位于当前页
* 1. 对于首页fragment，执行：滑动到顶部，并且刷新时间线，获取最新微博
* 2. 对于消息fragment，执行：无
* 3. 对于发现fragment，执行：无
* 4. 对于关于我fragment，执行：无
*
* @param currentIndex
*/
private void alreadyAtFragment(String currentIndex) {
//如果在当前页
switch (currentIndex) {
case HOME_FRAGMENT:
if (mHomeFragment != null) {
mHomeFragment.scrollToTop(true);
}
break;
case MESSAGE_FRAGMENT:
break;
case DISCOVERY_FRAGMENT:
break;
case PROFILE_FRAGMENT:
break;
}
}
/**
* 隐藏所有的fragment，并且取消所有的底部导航栏的icon的高亮状态
*
* @param transaction
*/
private void hideAllFragments(FragmentTransaction transaction) {
if (mHomeFragment != null) {
transaction.hide(mHomeFragment);
}
if (mMessageFragment != null) {
transaction.hide(mMessageFragment);
}
if (mDiscoverFragment != null) {
transaction.hide(mDiscoverFragment);
}
if (mProfileFragment != null) {
transaction.hide(mProfileFragment);
}
mHomeTab.setSelected(false);
mMessageTab.setSelected(false);
mDiscoeryTab.setSelected(false);
mProfile.setSelected(false);
}
/**
* @param requestCode
* @param resultCode
* @param data
*/
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (mHomeFragment != null) {
mHomeFragment.onActivityResult(requestCode, resultCode, data);
}
}
/**
* 监听返回按钮
*
* @param keyCode
* @param event
* @return
*/
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
if (keyCode == android.view.KeyEvent.KEYCODE_BACK) {
showExitDialog();
}
return false;
}
/**
* 解决输入法中的内存泄漏问题
*
* @param destContext
*/
public void fixInputMethodManagerLeak(Context destContext) {
if (destContext == null) {
return;
}
InputMethodManager imm = (InputMethodManager) destContext.getSystemService(Context.INPUT_METHOD_SERVICE);
if (imm == null) {
return;
}
String[] arr = new String[]{"mCurRootView", "mServedView", "mNextServedView"};
Field f = null;
Object obj_get = null;
for (int i = 0; i < arr.length; i++) {
String param = arr[i];
try {
f = imm.getClass().getDeclaredField(param);
if (f.isAccessible() == false) {
f.setAccessible(true);
} // author: sodino mail:sodino@qq.com
obj_get = f.get(imm);
if (obj_get != null && obj_get instanceof View) {
View v_get = (View) obj_get;
if (v_get.getContext() == destContext) { // 被InputMethodManager持有引用的context是想要目标销毁的
f.set(imm, null); // 置空，破坏掉path to gc节点
} else {
// 不是想要目标销毁的，即为又进了另一层界面了，不要处理，避免影响原逻辑,也就不用继续for循环了
LogUtil.d("fixInputMethodManagerLeak break, context is not suitable, get_context=" + v_get.getContext() + " dest_context=" + destContext);
break;
}
}
} catch (Throwable t) {
t.printStackTrace();
}
}
}
/**
* 显示退出窗口
*/
public void showExitDialog() {
AlertDialog.Builder builder = new AlertDialog.Builder(mContext);
builder.setMessage("确定要退出？")
.setCancelable(true)
.setIcon(R.drawable.logo)
.setPositiveButton("确定", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
((MyApplication) getApplication()).finishAll();
}
})
.setNegativeButton("取消", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
dialog.cancel();
}
});
AlertDialog alert = builder.create();
alert.show();
}
}