我的Android進階之旅------>解決錯誤:You need to use a Theme.AppCompat theme (or descendant) with this activity.
阿新 • • 發佈:2019-01-22
#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:
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!