android自定义theme尝试

res/values/styles.xml配置中增加

<style name="CustomTheme" parent="android:Theme">
        <item name="android:textSize">30sp</item>
        <item name="android:windowTitleSize">40sp</item>
        <item name="android:textColor">#ffff00</item>
        <item name="android:layout_centerInParent">true</item>
        <item name="android:gravity">center_horizontal</item>
    </style>

AndroidManifest.xml中<application>中修改android:theme="@style/CustomTheme"

实现改字体大小和颜色，设置textGravity无法实现居中

有在Activity的onCreate方法中设置标题对齐(还是会出现明显的切换)

TextView view = (TextView) findViewById(android.R.id.title);

view.setGravity(Gravity.CENTER);