大家好,我使用了v7 Appcompact ActionBar支持库。 我使用ActionBarActivity扩展了我的Activity类。以下是我的主要类:
import android.os.Bundle;
import android.support.v7.app.ActionBarActivity;
import android.support.v7.widget.SearchView;
import android.view.Menu;
import android.view.MenuItem;
public class MainActivity extends ActionBarActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.activity_main, menu);
MenuItem menuItem=menu.findItem(R.id.menu_settings);
SearchView mSearchView=(SearchView)menuItem.getActionView();
return super.onCreateOptionsMenu(menu);
}
}
在清单文件中,我像这样声明主题类型
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.appcompactdemo"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="16" />
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name="com.example.appcompactdemo.MainActivity"
android:label="@string/app_name"
android:theme="@style/Theme.AppCompat.Light.DarkActionBar">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
在 style.xml 中,如下所示:
<style name="ExampleTheme" parent="Theme.AppCompat.Light.DarkActionBar">
<item name="homeAsUpIndicator">@drawable/new_indicator</item>
<item name="android:homeAsUpIndicator">@drawable/new_indicator</item>
</style>
上面的代码在 Android 4.0 版本中可以正常工作,但在 2.3 设备上不起作用,会出现以下错误:
java.lang.NoSuchMethodError: android.view.MenuItem.getActionView
07-26 04:11:40.900: E/AndroidRuntime(412): at com.example.appcompactdemo.MainActivity.onCreateOptionsMenu(MainActivity.java:24)
07-26 04:11:40.900: E/AndroidRuntime(412): at android.app.Activity.onCreatePanelMenu(Activity.java:2158)
07-26 04:11:40.900: E/AndroidRuntime(412): at android.support.v4.app.FragmentActivity.onCreatePanelMenu(FragmentActivity.java:224)
07-26 04:11:40.900: E/AndroidRuntime(412): at android.support.v7.app.ActionBarActivity.superOnCreatePanelMenu(ActionBarActivity.java:224)
07-26 04:11:40.900: E/AndroidRuntime(412): at android.support.v7.app.ActionBarActivityDelegateBase$1.run(ActionBarActivityDelegateBase.java:69)
07-26 04:11:40.900: E/AndroidRuntime(412): at android.os.Handler.handleCallback(Handler.java:587)
07-26 04:11:40.900: E/AndroidRuntime(412): at android.os.Handler.dispatchMessage(Handler.java:92)
07-26 04:11:40.900: E/AndroidRuntime(412): at android.os.Looper.loop(Looper.java:130)
07-26 04:11:40.900: E/AndroidRuntime(412): at android.app.ActivityThread.main(ActivityThread.java:3683)
07-26 04:11:40.900: E/AndroidRuntime(412): at java.lang.reflect.Method.invokeNative(Native Method)
07-26 04:11:40.900: E/AndroidRuntime(412): at java.lang.reflect.Method.invoke(Method.java:507)
07-26 04:11:40.900: E/AndroidRuntime(412): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
07-26 04:11:40.900: E/AndroidRuntime(412): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
07-26 04:11:40.900: E/AndroidRuntime(412): at dalvik.system.NativeStart.main(Native Method)
有任何想法如何解决它吗?