飞道的博客

三步实现Android应用内一键换肤,无需重启应用,无需编写多余代码

543人阅读  评论(0)

古人学问无遗力,少壮工夫老始成。
纸上得来终觉浅,绝知此事要躬行。 --《冬夜读书示子聿》 · 陆游

换肤效果演示

四种皮肤切换:默认白色、蓝色、绿色和玫瑰红:

前言

先给大家介绍一下现在比较主流的、Star比较多的换肤框架:

而我这篇文章讲的是基于Android-skin-support框架实现的Android应用内换肤,在此非常感谢这个换肤框架的作者,因为他的默默付出,使我们的开发更加简单快捷,而且这个换肤框架的功能非常强大:支持应用内换肤、插件式换肤(包括zip包资源换肤),学习成本低,快速上手,代码侵入性低还有最重要的用户体验极佳。

如何实现一键换肤?

下面内容是基于上面演示的demo:
使用的布局是android.support.constraint.ConstraintLayout
使用的控件有 ImageView、TextView、Button、RecyclerView、AlertDialog、RadioGroup和RadioButton:

layout文件示例

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@drawable/window_bg"
    tools:context=".MainActivity">

    <ImageView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        android:layout_marginTop="14dp"
        android:layout_marginEnd="14dp"
        android:src="@drawable/dragon_ic"/>

    <LinearLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:orientation="vertical"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent">

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:gravity="center"
            android:drawableEnd="@drawable/skin_ic"
            android:textColor="@color/textColor"
            android:textSize="28sp"
            android:textStyle="bold"
            android:text="@string/current_skin_text"/>

        <TextView
            android:id="@+id/tv_show"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginTop="40dp"
            android:background="@drawable/input_bg"
            android:gravity="start|center_vertical"
            android:paddingStart="20dp"
            android:paddingEnd="0dp"
            android:textColor="@color/textColor"
            android:textSize="22sp"
            android:textStyle="bold"/>

        <android.support.v7.widget.RecyclerView
            android:id="@+id/rv_bts"
            android:layout_width="420dp"
            android:layout_height="wrap_content"
            android:overScrollMode="never"/>

        <Button
            android:id="@+id/bt_switch_skin"
            android:layout_width="400dp"
            android:layout_height="wrap_content"
            android:layout_marginTop="14dp"
            android:background="@drawable/button_selector"
            android:textColor="@android:color/black"
            android:textSize="22sp"
            android:textStyle="bold"
            android:text="@string/switch_skin_text"/>
    </LinearLayout>

</android.support.constraint.ConstraintLayout>

item_button.xml

<?xml version="1.0" encoding="utf-8"?>
<Button
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/bt_item"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_marginTop="14dp"
    android:background="@drawable/button_selector"
    android:textColor="@android:color/black"
    android:textSize="22sp"
    android:textStyle="bold"/>

view_dialog.xml

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@drawable/window_bg"
    xmlns:app="http://schemas.android.com/apk/res-auto">

    <TextView
        android:id="@+id/tv_title"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        android:gravity="center"
        android:background="@drawable/title_bg"
        android:textColor="@android:color/white"
        android:textSize="26sp"
        android:textStyle="bold"
        android:text="@string/dialog_title"/>

    <RadioGroup
        android:id="@+id/rg_skin_check"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        app:layout_constraintTop_toBottomOf="@id/tv_title"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        android:layout_marginTop="20dp"
        android:orientation="vertical">

        <RadioButton
            android:id="@+id/rb_blue"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:drawableEnd="@drawable/rect_blue"
            android:drawablePadding="8dp"
            android:paddingStart="15dp"
            android:paddingEnd="0dp"
            android:textColor="@color/blue_skin_color"
            android:textSize="22sp"
            android:textStyle="bold"
            android:text="@string/blue_skin"/>

        <RadioButton
            android:id="@+id/rb_green"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:drawableEnd="@drawable/rect_green"
            android:drawablePadding="8dp"
            android:layout_marginTop="10dp"
            android:paddingStart="15dp"
            android:paddingEnd="0dp"
            android:textColor="@color/green_skin_color"
            android:textSize="22sp"
            android:textStyle="bold"
            android:text="@string/green_skin"/>

        <RadioButton
            android:id="@+id/rb_rose_red"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:drawableEnd="@drawable/rect_rose_red"
            android:drawablePadding="8dp"
            android:layout_marginTop="10dp"
            android:paddingStart="15dp"
            android:paddingEnd="0dp"
            android:textColor="@color/rose_red_skin_color"
            android:textSize="22sp"
            android:textStyle="bold"
            android:text="@string/rose_red_skin"/>

        <RadioButton
            android:id="@+id/rb_default"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:checked="true"
            android:layout_marginTop="10dp"
            android:paddingStart="15dp"
            android:paddingEnd="0dp"
            android:textColor="@android:color/black"
            android:textSize="22sp"
            android:textStyle="bold"
            android:text="@string/default_skin"/>


    </RadioGroup>

</android.support.constraint.ConstraintLayout>
  • 导入
    demo中用到了android.support.constraint.ConstraintLayout,添加以下依赖:
    implementation 'skin.support:skin-support:3.1.4'
    implementation 'skin.support:skin-support-constraint-layout:3.1.4'

如果用到了material design控件或者CardView v7 控件可以添加下面依赖:

implementation 'skin.support:skin-support-design:3.1.4'            // skin-support-design material design 控件支持
implementation 'skin.support:skin-support-cardview:3.1.4'          // skin-support-cardview CardView 控件支持
  • 初始化
    如果项目中没有Application,可以新建Application,在onCreate()方法中初始化:
    @Override
    public void onCreate() {
   
        super.onCreate();
        SkinCompatManager.withoutActivity(this)
                .addInflater(new SkinConstraintViewInflater())
                .loadSkin();
     }

如果用到了material design控件或者CardView v7 控件,可以这样写:

    SkinCompatManager.withoutActivity(this)                         // 基础控件换肤初始化
            .addInflater(new SkinMaterialViewInflater())            // material design 控件换肤初始化[可选]
            .addInflater(new SkinConstraintViewInflater())          // ConstraintLayout 控件换肤初始化[可选]
            .addInflater(new SkinCardViewInflater())                // CardView v7 控件换肤初始化[可选]              
            .loadSkin();

项目中的Activity如果继承AppCompatActivity,需要重载getDelegate()方法:

    @NonNull
    @Override
    public AppCompatDelegate getDelegate() {
   
        return SkinAppCompatDelegateImpl.get(this, this);
    }
  • 最重要的一步,也是比较繁琐,准备皮肤包。 应用内换肤皮肤名为: blue、green、rosered, 新增需要换肤的资源添加上面三种后缀,如图所示:

如何新建皮肤资源?

右键app选择New -> Folder -> Res Folder

改变Res Folder路径,新建res-greenres-rosered同理:

三个换肤资源新建完成之后,在build.gradle中检查一下:

sourceSets {
   
        main {
   
            res.srcDirs = ['src/main/res', 'src/main/res-blue', 'src/main/res-green', 'src/main/res-rosered']
        }
    }

将各皮肤的资源文件复制进相应的文件夹,举例子:
默认的res文件夹

新建的res-blue文件夹

看到上面的区别了吗?基本上layout文件用到的drawable,需要换肤的都要加上相应皮肤资源名字的后缀!
还有res-blue下的colors需要改变颜色的也要加上相应皮肤资源名字的后缀!


res下的colors对比:

res-greenres-rosered皮肤资源准备步骤跟上面一致,就不再详细描述了。

  • 最后一步!一键换肤!

demo示例,加载皮肤资源:

            switch (checkedId) {
   
                    case R.id.rb_blue:
                        SkinCompatManager.getInstance()
                                .loadSkin("blue", null, SkinCompatManager.SKIN_LOADER_STRATEGY_BUILD_IN);
                        skin = "蓝色";
                        break;

                    case R.id.rb_green:
                        SkinCompatManager.getInstance()
                                .loadSkin("green", null, SkinCompatManager.SKIN_LOADER_STRATEGY_BUILD_IN);
                        skin = "绿色";
                        break;

                    case R.id.rb_rose_red:
                        SkinCompatManager.getInstance()
                                .loadSkin("rosered", null, SkinCompatManager.SKIN_LOADER_STRATEGY_BUILD_IN);
                        skin = "玫瑰红";
                        break;

                    case R.id.rb_default:
                        SkinCompatManager.getInstance().restoreDefaultTheme();
                        break;

                    default:break;
                }

最后贴上MainActivity代码,仅供参考:

public class MainActivity extends AppCompatActivity {
   

    @BindView(R.id.tv_show)
    TextView mTvShowText;
    @BindView(R.id.rv_bts)
    RecyclerView mRvBts;

    private String inputText = "";
    private AlertDialog mAlertDialog;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
   
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        ButterKnife.bind(this);
        init();
    }

    private void init() {
   
        final List<ViewBean> viewBeans = new ArrayList<>();
        viewBeans.add(new ViewBean("A"));
        viewBeans.add(new ViewBean("B"));
        viewBeans.add(new ViewBean("C"));
        viewBeans.add(new ViewBean("D"));
        viewBeans.add(new ViewBean("E"));
        viewBeans.add(new ViewBean("F"));
        viewBeans.add(new ViewBean("1"));
        viewBeans.add(new ViewBean("0"));
        viewBeans.add(new ViewBean("清空"));
        ViewBeanAdapter viewBeanAdapter = new ViewBeanAdapter(R.layout.item_button, viewBeans);
        mRvBts.setLayoutManager(new GridLayoutManager(this, 3));
        mRvBts.setAdapter(viewBeanAdapter);
        viewBeanAdapter.setOnItemClickListener(new BaseQuickAdapter.OnItemClickListener() {
   
            @Override
            public void onItemClick(BaseQuickAdapter adapter, View view, int position) {
   
                if (position == 8) {
   
                    inputText = "";
                    mTvShowText.setText(inputText);
                    return;
                }
                String text = viewBeans.get(position).getName();
                inputText += text;
                mTvShowText.setText(inputText);
            }
        });

        mAlertDialog = new AlertDialog.Builder(this).create();
        View view = View.inflate(this, R.layout.view_dialog, null);
        RadioGroup rgSkinCheck = view.findViewById(R.id.rg_skin_check);
        rgSkinCheck.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {
   
            @Override
            public void onCheckedChanged(RadioGroup group, int checkedId) {
   
                switch (checkedId) {
   
                    case R.id.rb_blue:
                        SkinCompatManager.getInstance()
                                .loadSkin("blue", null, SkinCompatManager.SKIN_LOADER_STRATEGY_BUILD_IN);
                        break;

                    case R.id.rb_green:
                        SkinCompatManager.getInstance()
                                .loadSkin("green", null, SkinCompatManager.SKIN_LOADER_STRATEGY_BUILD_IN);
                        break;

                    case R.id.rb_rose_red:
                        SkinCompatManager.getInstance()
                                .loadSkin("rosered", null, SkinCompatManager.SKIN_LOADER_STRATEGY_BUILD_IN);
                        break;

                    case R.id.rb_default:
                        SkinCompatManager.getInstance().restoreDefaultTheme();
                        break;

                    default:break;
                }
            }
        });
        mAlertDialog.setView(view, 0, 0, 0, 0);
    }

    @OnClick(R.id.bt_switch_skin)
    public void onSwitchSkin() {
   
        mAlertDialog.show();
        if (null != mAlertDialog.getWindow())
            mAlertDialog.getWindow().setLayout(800, ViewGroup.LayoutParams.WRAP_CONTENT);
    }

    @NonNull
    @Override
    public AppCompatDelegate getDelegate() {
   
        return SkinAppCompatDelegateImpl.get(this, this);
    }

    @Override
    protected void onDestroy() {
   
        super.onDestroy();
        if (null != mAlertDialog) mAlertDialog.dismiss();
    }
}

看到最后是不是觉得一键换肤非常简单呢!纸上得来终觉浅,绝知此事要躬行!非常感谢你能看到这里,如果能够帮助到你是我的荣幸!


转载:https://blog.csdn.net/qq_36270361/article/details/115733971
查看评论
* 以上用户言论只代表其个人观点,不代表本网站的观点或立场