两种方法,第一种是静态开启方法
把application 或者 activity的主题设置为Theme.Holo即可
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<? xml version = "1.0" encoding = "utf-8" ?> package = "com.baidu.homer" android:versionCode = "1" android:versionName = "1.0" > < uses-sdk android:minSdkVersion = "18" /> < application android:label = "@string/app_name" android:icon = "@drawable/ic_launcher" android:theme = "@android:style/Theme.Holo" > < activity android:name = "MyActivity" android:label = "@string/app_name" > < intent-filter > < action android:name = "android.intent.action.MAIN" /> < category android:name = "android.intent.category.LAUNCHER" /> </ intent-filter > </ activity > </ application > </ manifest > |
第二种是动态开启
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import android.app.ActionBar; import android.app.Activity; import android.drm.DrmStore; import android.os.Bundle; public class MyActivity extends Activity { /** * Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super .onCreate(savedInstanceState); setContentView(R.layout.main); ActionBar actionBar = getActionBar(); actionBar.show(); } } |