Android -对图片Drawable进行变色

Dear 丶 2022-06-10 14:29 263阅读 0赞

# Android 图片DrawableCompat利用setTint（）对图片Drawable进行变色 #

# 1.利用color资源对Drawable变色 #

Drawable对象的来源不限制，可以是从资源getResource（）.getDrawable(int resourceId)也可以是其他的方式得到的Drawable

Drawable wrappedDrawable = DrawableCompat.wrap(drawable);
    DrawableCompat.setTint(wrappedDrawable, color);

# 2.采用ColorStateList来改变Drawable #

Drawable wrappedDrawable = DrawableCompat.wrap(drawable);
    DrawableCompat.setTintList(wrappedDrawable, colors);

# 3.介绍一下ColorStateList #

<?xml version="1.0" encoding="utf-8"?>  
    <selector xmlns:android="http://schemas.android.com/apk/res/android">  
        <item android:state_pressed="true" android:color="#ffff0000"/>   
        <item android:state_focused="true" android:color="#ff0000ff"/>   
        <item android:color="#ff000000"/>   
    </selector>

# Java代码（用于改变按钮的字体颜色） #

Button btn=(Button)findViewById(R.id.btn); Resources resource=(Resources)getBaseContext().getResources(); ColorStateList csl=(ColorStateList)resource.getColorStateList(R.color.button_text); if(csl!=null){ btn.setTextColor(color_state_list);//设置按钮文字颜色 }

# 4.安利一个朋友封装的工具类 #

public class DrawableTintUtil { 
    
      /** * Drawable 颜色转化类 * * @param drawable * @param color资源 * @return 改变颜色后的Drawable */
      public static Drawable tintDrawable(@NonNull Drawable drawable, int color) {
        Drawable wrappedDrawable = DrawableCompat.wrap(drawable);
        DrawableCompat.setTint(wrappedDrawable, color);
        return wrappedDrawable;
      }
    
      /** * Drawable 颜色转化类 * * @param drawable 源Drawable * @param ColorStateList * @return 改变颜色后的Drawable */
      public static Drawable tintListDrawable(@NonNull Drawable drawable, ColorStateList colors) {
        Drawable wrappedDrawable = DrawableCompat.wrap(drawable);
        DrawableCompat.setTintList(wrappedDrawable, colors);
        return wrappedDrawable;
      }
    }