Activity+Fragment基本框架（主要解決重啟後，出現重疊的問題）
阿新 • • 發佈：2019-01-27
之前寫過，這裡記載一個完整的
MainActivity
package com.example.apple.quickdemo.activity;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentTransaction;
import android.support.v7.app.AppCompatActivity;
import BaseFragment
package com.example.apple.quickdemo.base;
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 butterknife.ButterKnife;
import butterknife.Unbinder;
/**
* Created by apple on 2017/7/3.
*/
public abstract class BaseFragment extends Fragment {
Unbinder unbinder;
@Nullable
@Override
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
View view = inflater.inflate(provieResourceID(), container, false);
unbinder = ButterKnife.bind(this, view);
init();
return view;
}
protected abstract void init();
protected abstract int provieResourceID();
@Override
public void onDestroyView() {
super.onDestroyView();
unbinder.unbind();
}
}
Fragment1
package com.example.apple.quickdemo.fragment;
import android.os.Bundle;
import android.util.Log;
import android.widget.TextView;
import com.example.apple.quickdemo.R;
import com.example.apple.quickdemo.base.BaseFragment;
import butterknife.BindView;
/**
* Created by apple on 2017/7/3.
*/
public class Fragment1 extends BaseFragment {
@BindView(R.id.textView)
TextView tv;
private static final String ARG = "arg";
public Fragment1() {
Log.i("INFO", "TestFragment non-parameter constructor");
}
public static Fragment1 newInstance(String arg) {
Bundle bundle = new Bundle();
bundle.putString(ARG, arg);
Fragment1 fragment = new Fragment1();
fragment.setArguments(bundle);
return fragment;
}
@Override
protected int provieResourceID() {
return R.layout.fragment1;
}
@Override
protected void init() {
tv.setText(getArguments().getString(ARG));
}
}
FragmentFactory
package com.example.apple.quickdemo.fragment;
import android.support.v4.app.Fragment;
import java.util.HashMap;
/**
* Created by a on 2017/4/5.
*/
public class FragmentFactory {
public final static int F1 = 1;
public final static int F2 = 2;
public final static int F3 = 3;
public final static int F4 = 4;
private static HashMap<Integer, Fragment> mFragments = new HashMap<>();
public static Fragment createFragment(int fragmentName) {
// 從快取中取出
Fragment fragment = mFragments.get(fragmentName);
if (fragment == null) {
switch (fragmentName) {
case F1:
fragment = Fragment1.newInstance("100");
break;
case F2:
fragment = Fragment2.newInstance("200");
break;
case F3:
fragment = Fragment3.newInstance("300");
break;
case F4:
fragment = Fragment4.newInstance("400");
break;
}
// 把frament加入到快取中
mFragments.put(fragmentName,fragment);
}
return fragment;
}
}activity_main
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.example.apple.quickdemo.activity.MainActivity">
<FrameLayout
android:id="@+id/fl_content"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_above="@+id/ll_bottom_navigation"
android:background="@color/colorAccent">
</FrameLayout>
<android.support.v7.widget.LinearLayoutCompat
android:id="@+id/ll_bottom_navigation"
android:layout_width="match_parent"
android:layout_height="40dp"
android:layout_alignParentBottom="true"
android:background="@color/white_bg"
android:orientation="horizontal"
app:divider="@drawable/divider_line"
app:dividerPadding="3dp"
app:showDividers="middle">
<TextView
android:id="@+id/tv_bottom_nav_1"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="1"
android:gravity="center"
android:text="導航一"
/>
<TextView
android:id="@+id/tv_bottom_nav_2"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="1"
android:gravity="center"
android:text="導航二"/>
<TextView
android:id="@+id/tv_bottom_nav_3"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="1"
android:gravity="center"
android:text="導航三"/>
<TextView
android:id="@+id/tv_bottom_nav_4"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="1"
android:gravity="center"
android:text="導航四"/>
</android.support.v7.widget.LinearLayoutCompat>
</RelativeLayout>