Ativity起步指定的settings

Ativity启动指定的settings

Intent it = new Intent(Intent.ACTION_MAIN);it.setClassName("com.android.phone","com.android.phone.CallFeaturesSetting");startActivity(it);

?

简单注释下： intent.ACTION_MAIN

????????????????? "com.android.phone"

???????????????? "com.android.phone.CallFeatureSetting"

这些值可以根据想要打开的设置界面查找到，比如 call setting.我们在packages\apps\Settings\res\xml\settings.xlm

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        <com.android.settings.IconPreferenceScreen            android:key="call_settings"            settings:icon="@drawable/ic_settings_call"            android:title="@string/call_settings_title">            <intent                android:action="android.intent.action.MAIN"                android:targetPackage="com.android.phone"                android:target/>        </com.android.settings.IconPreferenceScreen>

?

红色字体就是我们想要跳转到的对应包和类名。

这样我们可以使用setClassName方法来跳转到我们指定的setting界面。

?

??

Intent it = new Intent();it.setAction(Settings.ACTION_WIRELESS_SETTINGS);startActivity(it);

? 根据指定的action

?

settings.java:

    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)    public static final String ACTION_WIRELESS_SETTINGS =            "android.settings.WIRELESS_SETTINGS";

?不是很明白这是根据什么来启动，类名？