当我旋转屏幕时,我想更改MainActivity的布局,其中包含两个片段

时间:2018-03-23 08:12:27

标签: android layout fragment

以下是有关例外的信息:

E/AndroidRuntime: FATAL EXCEPTION: main
                  Process: app.v.layout, PID: 13198
                  android.view.InflateException: Binary XML file line #0: Binary XML file line #0: Error inflating class fragment
                  Caused by: android.view.InflateException: Binary XML file line #0: Error inflating class fragment
                  Caused by: java.lang.IllegalArgumentException: Binary XML file line #0: Duplicate id 0x7f070029, tag null, or parent id 0xffffffff with another fragment for app.v.layout.contentFragment
                      at android.support.v4.app.FragmentManagerImpl.onCreateView(FragmentManager.java:3680)
                      at android.support.v4.app.FragmentController.onCreateView(FragmentController.java:111)
                      at android.support.v4.app.FragmentActivity.dispatchFragmentsOnCreateView(FragmentActivity.java:338)
                      at android.support.v4.app.BaseFragmentActivityApi14.onCreateView(BaseFragmentActivityApi14.java:39)
                      at android.support.v4.app.FragmentActivity.onCreateView(FragmentActivity.java:67)
                      at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:780)
                      at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:730)
                      at android.view.LayoutInflater.rInflate(LayoutInflater.java:863)
                      at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:824)
                      at android.view.LayoutInflater.inflate(LayoutInflater.java:515)
                      at android.view.LayoutInflater.inflate(LayoutInflater.java:423)
                      at android.view.LayoutInflater.inflate(LayoutInflater.java:374)
                      at android.support.v7.app.AppCompatDelegateImplV9.setContentView(AppCompatDelegateImplV9.java:287)
                      at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:139)
                      at app.v.layout.MainActivity.onConfigurationChanged(MainActivity.java:21)
                      at android.app.ActivityThread.performActivityConfigurationChanged(ActivityThread.java:4942)
                      at android.app.ActivityThread.performConfigurationChangedForActivity(ActivityThread.java:4809)
                      at android.app.ActivityThread.performConfigurationChangedForActivity(ActivityThread.java:4787)
                      at android.app.ActivityThread.handleActivityConfigurationChanged(ActivityThread.java:5134)
                      at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1728)
                      at android.os.Handler.dispatchMessage(Handler.java:106)
                      at android.os.Looper.loop(Looper.java:164)
                      at android.app.ActivityThread.main(ActivityThread.java:6494)
                      at java.lang.reflect.Method.invoke(Native Method)
                      at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438)
                      at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807)

以下是MainActivity的代码:

package app.v.layout;
import android.content.res.Configuration;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;

public class MainActivity extends AppCompatActivity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
    }
    public void onConfigurationChanged(Configuration newConfig){
        super.onConfigurationChanged(newConfig);
        if(newConfig.orientation==Configuration.ORIENTATION_LANDSCAPE){
            setContentView(R.layout.activity_main_land);
        }else{
            setContentView(R.layout.activity_main);
        }
    }
}

两个xmls:

    <?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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"
    android:orientation="vertical"
    android:background="@color/colorPrimary"
    tools:context="app.v.layout.MainActivity">

    <fragment
        class="app.v.layout.contentFragment"
        android:id="@+id/content"
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:layout_weight="1">
    </fragment>
    <fragment
        class="app.v.layout.InteractionFragment"
        android:id="@+id/interaction"
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:layout_weight="1">
    </fragment>

</LinearLayout>
    <?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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"
    android:orientation="horizontal"
    android:background="@color/colorPrimary"
    tools:context="app.v.layout.MainActivity">

    <fragment
        android:id="@+id/content2"
        class="app.v.layout.contentFragment"
        android:layout_width="0dp"
        android:layout_height="match_parent"
        android:layout_weight="1">
    </fragment>
    <fragment
        android:id="@+id/interaction2"
        class="app.v.layout.InteractionFragment"
        android:layout_width="0dp"
        android:layout_height="match_parent"
        android:layout_weight="1">
    </fragment>

</LinearLayout>

当我对屏幕进行调整时,它第一次运行良好,但之后就会停止。我想知道为什么。有没有办法解决这个问题?提前谢谢。

事实上,我想切换的两个xmls之间没有太大的区别。如果我只能调整片段的属性,比如高度或宽度,那么,我就不需要使用函数:setContentView。

Ps:我已经添加了以下行: android:configChanges =&#34; orientation | screenSize&#34;但是,正如我之前提到的那样,它只会在它突然停止之前工作一次。 AndroidManifest.xml看起来像这样:

 <?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="app.v.layout">

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity android:name=".MainActivity"
            android:configChanges="orientation|screenSize">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>

4 个答案:

答案 0 :(得分:0)

使用此更新您的清单文件并尝试

<activity
android:name="com.example.test.activity.MainActivity"
android:configChanges="orientation|screenSize|keyboardHidden"/>

Android将自行管理以避免娱乐。

答案 1 :(得分:0)

您需要收听已经完成的屏幕旋转配置更改。但是您需要使用

将其明确声明到特定活动的清单中
android:configChanges="orientation|screenSize"

答案 2 :(得分:0)

转到此链接以获取有关的信息 https://developer.android.com/guide/topics/resources/providing-resources.html#AlternativeResources

为旋转放置不同的布局,屏幕尺寸根据:

更改

res / layout / layout.xml // app的默认布局

res / layout-land / layout.xml //旋转时的布局。

res / layout-w600dp / layout //当屏幕宽度增加600dp限制时的布局

答案 3 :(得分:0)

感谢所有人愿意提供帮助。 我的问题刚刚解决了,它是关于函数“setContentView()”的东西。 (我不知道究竟在哪里,任何详细说明都会受到赞赏。)但我确实设法通过更改有关该功能的几行来实现:

        LayoutInflater inflater=(LayoutInflater)getSystemService(LAYOUT_INFLATER_SERVICE);
        view=inflater.inflate(R.layout.activity_main,null);
        viewLand=inflater.inflate(R.layout.activity_main_land,null);

和“onConfigurationChanged()”:

        if(newConfig.orientation==Configuration.ORIENTATION_LANDSCAPE){
            setContentView(viewLand);
        }else{
            setContentView(view);
        }

总而言之,不能在“setContentView()”中使用相同的“R.layout.activity_main”两次。我希望这会帮助那些不幸遇到同样问题的人。