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Android碎片兼顾平板简单示例

2018年11月01日  | 移动技术网IT编程  | 我要评论

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示例一（简单）：

activity_main：

left_fragment：

right_fragment：

leftfragment：

package com.example.mjon.myapplication;

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;

public class leftfragment extends fragment {

    @nullable
    @override
    public view oncreateview(layoutinflater inflater, @nullable viewgroup container, @nullable bundle savedinstancestate) {
        view view = inflater.inflate(r.layout.left_fragment,container,false);
        return view;
    }
}

rightfragment：

package com.example.mjon.myapplication;

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;

public class rightfragment extends fragment {

    @nullable
    @override
    public view oncreateview(layoutinflater inflater, @nullable viewgroup container, @nullable bundle savedinstancestate) {
        view view = inflater.inflate(r.layout.right_fragment,container,false);
        return view;
    }
}

示例二（动态加载）：

activity_main：






<framelayout android:id="@+id/right_fragment" android:layout_height="match_parent" android:layout_weight="1" android:layout_width="0dp">

</framelayout>

left_fragment：

right_fragment：

other_fragment：

leftfragment：



package com.example.mjon.myapplication;

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;

public class leftfragment extends fragment {

    @nullable
    @override
    public view oncreateview(layoutinflater inflater, @nullable viewgroup container, @nullable bundle savedinstancestate) {
        view view = inflater.inflate(r.layout.left_fragment,container,false);
        return view;
    }
}



rightfragment：




package com.example.mjon.myapplication;

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;

public class rightfragment extends fragment {

    @nullable
    @override
    public view oncreateview(layoutinflater inflater, @nullable viewgroup container, @nullable bundle savedinstancestate) {
        view view = inflater.inflate(r.layout.right_fragment,container,false);
        return view;
    }
}



otherfragment：


package com.example.mjon.myapplication;

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;

public class otherfragment extends fragment {

    @nullable
    @override
    public view oncreateview(layoutinflater inflater, @nullable viewgroup container, @nullable bundle savedinstancestate) {
        view view = inflater.inflate(r.layout.other_fragment,container,false);
        return view;
    }
}


mainactivity：


package com.example.mjon.myapplication;

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 android.os.bundle;
import android.view.view;
import android.widget.button;

public class mainactivity extends appcompatactivity {

    @override
    protected void oncreate(bundle savedinstancestate) {
        super.oncreate(savedinstancestate);
        setcontentview(r.layout.activity_main);
        replacefragment(new rightfragment());
        button btn = (button)findviewbyid(r.id.button);
        btn.setonclicklistener(new view.onclicklistener() {
            @override
            public void onclick(view view) {
                replacefragment(new otherfragment());
            }
        });
    }

    private void replacefragment(fragment fragment){
        fragmentmanager fragmentmanager = getsupportfragmentmanager();
        fragmenttransaction transaction = fragmentmanager.begintransaction();
        transaction.replace(r.id.right_fragment,fragment);
        transaction.commit();
    }
}




                    

                        

                            
                        

                    

                    


                    
                    

                        
    
                            
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