This framework of Android app support multiple theme(such as day/night mode) and needn’t finish current application or current activity.
第一步:在项目的attr.xml声明自定义属性(各种模式都会用到的属性)
<?xml version="1.0" encoding="utf-8"?>
<resources>
<attr name="main_bg" format="reference|color"/>
<attr name="main_textcolor" format="reference|color"/>
<attr name="second_bg" format="reference|color"/>
<attr name="second_textcolor" format="reference|color"/>
</resources>
第二步:在项目的style.xml指定各种模式主题下的自定义属性值
<?xml version="1.0" encoding="utf-8"?>
<resources>
<style name="theme_1" >
<item name="main_bg">@color/bg_main_normal</item>
<item name="main_textcolor">@color/textcolor_main_normal</item>
<item name="second_bg">@color/bg_second_normal</item>
<item name="second_textcolor">@color/textcolor_second_normal</item>
</style>
<style name="theme_2">
<item name="main_bg">@color/bg_main_dark</item>
<item name="main_textcolor">@color/textcolor_main_dark</item>
<item name="second_bg">@color/bg_second_dark</item>
<item name="second_textcolor">@color/textcolor_second_dark</item>
</style>
</resources>
第三步:在页面布局文件里使用自定义属性值
<derson.com.multipletheme.colorUi.widget.ColorTextView
android:textColor="?attr/main_textcolor"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/hello_world" />
<derson.com.multipletheme.colorUi.widget.ColorButton
android:id="@+id/btn"
android:text="换肤"
android:layout_centerInParent="true"
android:textColor="?attr/main_textcolor"
android:layout_width="100dip"
android:layout_height="80dip" />
第四步:在基类的onCreate方法里添加切换主题模式的逻辑代码
public class BaseActivity extends Activity{
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if(SharedPreferencesMgr.getInt("theme", 0) == 1) {
setTheme(R.style.theme_2);
} else {
setTheme(R.style.theme_1);
}
}
}
第五步:调用工具类方法切换主题模式
if(SharedPreferencesMgr.getInt("theme", 0) == 1) {
SharedPreferencesMgr.setInt("theme", 0);
setTheme(R.style.theme_1);
} else {
SharedPreferencesMgr.setInt("theme", 1);
setTheme(R.style.theme_2);
}
final View rootView = getWindow().getDecorView();
if(Build.VERSION.SDK_INT < 14) {
ColorUiUtil.changeTheme(rootView, getTheme());
} else {
//部分代码省略
}
第六步:针对切换主题模式时需要立即更新页面ui的页面,需要使用框架里的封装控件
<derson.com.multipletheme.colorUi.widget.ColorTextView
……>
<derson.com.multipletheme.colorUi.widget.ColorButton
……/>
<derson.com.multipletheme.colorUi.widget.ColorButton
……/>