1. 程式人生 > >我的Android進階之旅------>解決錯誤:You need to use a Theme.AppCompat theme (or descendant) with this activity.

我的Android進階之旅------>解決錯誤:You need to use a Theme.AppCompat theme (or descendant) with this activity.

#1、錯誤描述

今天,想實現Activity不顯示標題欄的效果,在專案的AndroidManifest.xml檔案,對相應的Activity新增屬性

 android:theme="@android:style/Theme.NoTitleBar"

具體程式碼如下:

<activity android:name=".module.view.activity.KuwoMusicPlayActivity"
            android:theme="@android:style/Theme.NoTitleBar">
            <intent-filter
>
<action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity>

結果執行app的時候,報瞭如下錯誤:

java.lang.IllegalStateException: You need to use a Theme.AppCompat theme (or
descendant) with this activity.

具體錯誤log如下:

01-01 01:33:41.950 6637-6637/com.xtc.kuwo E/AndroidRuntime: FATAL EXCEPTION: main
                                                            Process: com.xtc.kuwo, PID: 6637
                                                            java.lang.RuntimeException
: Unable to start activity ComponentInfo{com.xtc.kuwo/com.xtc.kuwo.module.view.activity.KuwoMusicPlayActivity}: java.lang.IllegalStateException: You need to use a Theme.AppCompat theme (or descendant) with this activity. at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2325) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2387) at android.app.ActivityThread.access$800(ActivityThread.java:151) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1303) at android.os.Handler.dispatchMessage(Handler.java:102) at android.os.Looper.loop(Looper.java:135) at android.app.ActivityThread.main(ActivityThread.java:5254) at java.lang.reflect.Method.invoke(Native Method) at java.lang.reflect.Method.invoke(Method.java:372) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:955) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:750) Caused by: java.lang.IllegalStateException: You need to use a Theme.AppCompat theme (or descendant) with this activity. at android.support.v7.app.AppCompatDelegateImplV7.createSubDecor(AppCompatDelegateImplV7.java:340) at android.support.v7.app.AppCompatDelegateImplV7.ensureSubDecor(AppCompatDelegateImplV7.java:309) at android.support.v7.app.AppCompatDelegateImplV7.setContentView(AppCompatDelegateImplV7.java:273) at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:136) at com.xtc.kuwo.module.view.activity.KuwoMusicPlayActivity.onCreate(KuwoMusicPlayActivity.java:57) at android.app.Activity.performCreate(Activity.java:5990) at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1106) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2278) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2387)? at android.app.ActivityThread.access$800(ActivityThread.java:151)? at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1303)? at android.os.Handler.dispatchMessage(Handler.java:102)? at android.os.Looper.loop(Looper.java:135)? at android.app.ActivityThread.main(ActivityThread.java:5254)? at java.lang.reflect.Method.invoke(Native Method)? at java.lang.reflect.Method.invoke(Method.java:372)? at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:955)? at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:750)?

如下圖所示:
這裡寫圖片描述

2、錯誤分析

原來我的Activity繼承自 android.support.v7.app.AppCompatActivity,而不是 android.app.Activity。

3、解決方法

方法1:

建立的activity時,如果不是那麼強烈需要繼承自AppCompatActivity,就直接繼承Activity。
如將activity繼承自AppCompatActivity:

public class MainActivity extends ActionBarActivity 

改成activity繼承自Activity:

public class MainActivity extends Activity

方法2:

還是想繼承自AppCompatActivity,那麼根據提示來使用AppCompat的theme,即將AndroidManifest.xml檔案中關於Activity的主題配置改成:

android:theme="@style/Theme.AppCompat.Light.NoActionBar"

完整程式碼如下:

<activity android:name=".module.view.activity.KuwoMusicPlayActivity"
            android:theme="@style/Theme.AppCompat.Light.NoActionBar">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
</activity>

問題解決!

這裡寫圖片描述