1.BitmapDrawable

<?xml version="1.0" encoding="utf-8"?>
<bitmap xmlns:android="http://schemas.android.com/apk/res/android"

        <!--圖片的資源 -->
        android:src="@drawable/create"
        <!--是否抗鋸齒-->
        android:antialias="true"
        <!--是否開(kāi)啟抖動(dòng)效果-->
        android:dither="true"
        <!--開(kāi)啟過(guò)濾效果-->
        android:filter="true"
        <!--圖片大小和容器不符合時(shí)圖片擺放位置嚼松，拉伸哲银，裁剪-->
        android:gravity="
        <!--圖片大小不發(fā)生變化-->
        top|bottom|left|right
        |center_vertical|center_horizontal|center
        <!--圖片大小發(fā)生變化-->
        |fill_vertical|fill_horizontal|fill
        |clip_vertical|clip_horizontal"
        <!--紋理映射，圖像處理技術(shù)，一般用不到-->
        android:mipMap="false"
        <!--平鋪模式,開(kāi)啟此屬性gravity會(huì)失效
       disabled 關(guān)閉
       clamp 圖片四周像素會(huì)擴(kuò)散到周?chē)鷧^(qū)域
       repeat 簡(jiǎn)單的水平和豎直方向重復(fù)圖片
       mirror 圖片倒立重復(fù)圖片
        -->
        android:tileMode=" ["disabled"|"clamp"|"repeat"|"mirror"]"
    >

</bitmap>

2.NinePatchDrawable

點(diǎn)9圖可以自動(dòng)根據(jù)所需的寬高進(jìn)行相應(yīng)的縮放并保證不失真

屬性基本和BitmapDrawable相同

<?xml version="1.0" encoding="utf-8"?>
<nine-patch xmlns:android="http://schemas.android.com/apk/res/android"
    android:src="@drawable/create"
    >

</nine-patch>

3.ShapeDrawable

在代碼中生成的是GradientDrawable對(duì)象

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    <!--圖形 可以是rectangle（矩形）
                   oval（橢圓）
                   line（線）
                   ring（圓環(huán)）
    -->
    android:shape=""
    <!--以下是圓環(huán)特有屬性
    圓環(huán)內(nèi)徑-->
    android:innerRadius="@dimen/activity_horizontal_margin"
    
    <!--內(nèi)徑所占整個(gè)Drawable的比例 默認(rèn)為9，如果為n,那么內(nèi)半徑=寬度/n，以innerRadius為主-->
    android:innerRadiusRatio="1"
    <!--圓環(huán)厚度-->
    android:thickness="@dimen/activity_horizontal_margin"
    <!--厚度所占整個(gè)Drawable的比例 默認(rèn)為3槽奕，如果為n,那么厚度=寬度/n，以thickness為主-->
    android:thicknessRatio="1"
    <!--除非用于LevelListDrawable一般為false-->
     android:useLevel="false"
 
    >
    
    <!--Drawable的內(nèi)在寬高-->
    <size android:height="@dimen/activity_horizontal_margin"
          android:width="@dimen/activity_horizontal_margin"/>
    <!--包含這個(gè)Drawable的View的空白-->
    <padding
        android:top="@dimen/activity_horizontal_margin"
        android:bottom="@dimen/activity_horizontal_margin"
        android:left="@dimen/activity_horizontal_margin"
        android:right="@dimen/activity_horizontal_margin"
        />
    <!--適用于rectangle四個(gè)角的圓角半徑-->
    <corners
        android:radius="@dimen/activity_horizontal_margin"
        android:topLeftRadius="@dimen/activity_horizontal_margin"
        android:topRightRadius="@dimen/activity_horizontal_margin"
        android:bottomRightRadius="@dimen/activity_horizontal_margin"
        android:bottomLeftRadius="@dimen/activity_horizontal_margin"
        />
    <!--顏色填充使用純色-->
    
     <solid android:color="@color/colorAccent"/>
     <!--顏色填充使用漸變色-->
    <gradient
    <!--漸變類(lèi)型
    linear 線性漸變（默認(rèn)）
    radial  徑向漸變
    sweep  掃描線漸變
    -->
        android:type=""
        
        <!-- 漸變的角度默認(rèn)為0房轿，其值必須為45的倍數(shù)
        0代表從左到右
        90代表從下到上-->
        android:angle="0"
        <!--漸變中心點(diǎn)坐標(biāo)-->
        android:centerX="1"
        android:centerY="1"
        
        android:startColor="@color/colorAccent"
        android:centerColor="@color/colorAccent"
        android:endColor="@color/colorAccent "
        <!--漸變半徑 僅當(dāng)type等于radial有效-->
        android:gradientRadius="1"
         <!--除非用于LevelListDrawable一般為false-->
        android:useLevel="false"
        />
   
   <!--描邊-->
    <stroke
        <!--描邊寬度-->
        android:width="@dimen/activity_horizontal_margin"
        <!--描邊顏色-->
        android:color="@color/colorAccent"
        <!--設(shè)置為虛線描邊寬度與dashGap同時(shí)使用才能生效-->
        android:dashWidth="@dimen/activity_horizontal_margin"
        <!--描邊虛線間隔空隙-->
        android:dashGap="@dimen/activity_horizontal_margin"
        />
</shape>

4.LayerDrawable

一種不同層次的Drawable的集合粤攒，放置不同層面而達(dá)到疊加后的效果，一個(gè)layer-list可包含多個(gè)item
默認(rèn)情況下囱持，layer-list中所有的View都會(huì)被縮放至View的大泻唤印（對(duì)于bitmap可通過(guò)android:gravity控制圖片顯示效果）,下面的item會(huì)覆蓋上面的item。

<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">


    <item 
            <!--可引用一個(gè)drawable資源-->
          android:drawable="@drawable/drawable_bitmap"
          <!--drawable相對(duì)于View的偏移量-->
          android:top="@dimen/activity_horizontal_margin"
          android:bottom="@dimen/activity_horizontal_margin"
          android:left="@dimen/activity_horizontal_margin"
          android:right="@dimen/activity_horizontal_margin"
        >
    <item>
        <shape android:shape="rectangle"
            >
            <solid android:color="#0ac39e"/>
        </shape>
    </item>
    <item android:bottom="6dp">
        <shape android:shape="rectangle"
            >
            <solid android:color="#ffffff"/>
        </shape>
    </item>
    <item android:bottom="1dp"
          android:left="1dp"
          android:right="1dp"

        >
        <shape android:shape="rectangle"
            >
            <solid android:color="#ffffff"/>
        </shape>
    </item>
</layer-list>

5.StateListDrawable

不同狀態(tài)選擇不同drawable

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android"

         <!--StateListDrawable固有大小是否隨著drawable的切換而發(fā)生變化為true不發(fā)生變化纷妆，為item中drawable最大的固有大小 默認(rèn)為false-->
          android:constantSize="true"
          <!--是否開(kāi)啟防抖效果-->
          android:dither="true"
          <!--StateListDrawable的padding是否隨著drawable的切換而發(fā)生變化盔几，為false不變是所有item中drawable padding的最大值，默認(rèn)為false-->
          android:variablePadding="true"
    >
    <item android:drawable="@drawable/create" android:state_pressed="true"/>
    <item android:drawable="@drawable/create" android:state_focused="true" />
    <item android:drawable="@drawable/create" android:state_checked="true" />
    <!--默認(rèn)-->
    <item android:drawable="@drawable/create" />
 
</selector>

6.LevelListDrawable

Drawable的集合掩幢，每個(gè)Drawable都可設(shè)置最小level和最大level逊拍，View的背景可通過(guò)getBackground().setLevel（）設(shè)置不同了Level匹配不同的Drawable
ImageView的話可通過(guò)setIamgeLevel()匹配不同的Drawable

<?xml version="1.0" encoding="utf-8"?>
<level-list xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:drawable="@drawable/create"
            android:minLevel="0"
            android:maxLevel="0"
        >
    </item>
    <item android:drawable="@drawable/b_now" android:maxLevel="1"/>
    <item android:drawable="@drawable/tap_launch" android:maxLevel="2"/>
    <item android:drawable="@drawable/uilib" android:maxLevel="3"/>


</level-list>

7.TransitionDrawable

只能實(shí)現(xiàn)兩個(gè)Drawable的淡入淡出效果
默認(rèn)顯示item1

 TransitionDrawable drawable= (TransitionDrawable) mIvLevel.getBackground();
        if (!mBoolean)
        {

            //從item1淡出，item2淡入
            drawable.startTransition(1000);
            mBoolean=true;
        }
        else
        {
            //反轉(zhuǎn)
            drawable.reverseTransition(1000);
            mBoolean=false;
        }

<?xml version="1.0" encoding="utf-8"?>
<transition xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:drawable="@drawable/b_now"
          android:top="@dimen/activity_horizontal_margin"
          android:bottom="@dimen/activity_horizontal_margin"
          android:left="@dimen/activity_horizontal_margin"
          android:right="@dimen/activity_horizontal_margin"

        ></item>
    <item android:drawable="@drawable/create"></item>
</transition>

8.InsetDrawable

把Drawable內(nèi)嵌到自己當(dāng)中

<?xml version="1.0" encoding="utf-8"?>
<inset xmlns:android="http://schemas.android.com/apk/res/android"
       android:drawable="@drawable/create"
       android:insetBottom="@dimen/activity_horizontal_margin"
       android:insetLeft="@dimen/activity_horizontal_margin"
       android:insetRight="@dimen/activity_horizontal_margin"
       android:insetTop="@dimen/activity_horizontal_margin"
    >
    <shape android:shape="rectangle">
        <solid android:color="@color/colorAccent"></solid>
    </shape>
</inset>

9.ScaleDrawable

適合縮小一個(gè)特定的drawable

<?xml version="1.0" encoding="utf-8"?>
<scale xmlns:android="http://schemas.android.com/apk/res/android"
    android:drawable="@drawable/create"
        <!--縮放寬高比例越大 Drawable顯示越小-->
       android:scaleWidth="1%"
       android:scaleHeight="50%"
       android:scaleGravity="center"
       <!--level取值0到10000 為0不顯示际邻，level越大Drawable顯示越大-->
       android:level="1"
    >
</scale>

10.ClipDrawable

裁剪Drawable 由clipOrientation和gravity共同決定裁剪位置

ClipDrawable clipDrawable= (ClipDrawable)
mIvLevel.getDrawable();
//level取值0到10000,取值越大裁剪越少 0完全裁剪芯丧，10000表示不裁剪
clipDrawable.setLevel(5000);

<?xml version="1.0" encoding="utf-8"?>
<clip xmlns:android="http://schemas.android.com/apk/res/android"
      android:drawable="@drawable/create"
      <!--裁剪的方向-->
      android:clipOrientation="vertical"
      android:gravity="center"
      
    >
</clip>

自定義Drawable

public class CustomDrawable extends Drawable {
    
    private Paint mPaint;

    public CustomDrawable(int  color) {
        mPaint=new Paint(Paint.ANTI_ALIAS_FLAG);
        mPaint.setColor(color);
    }

    @Override
    public void draw(Canvas canvas) {
        final Rect rect=getBounds();
        float cx=rect.exactCenterX();
        float cy=rect.exactCenterY();
        canvas.drawCircle(cx,cy,Math.min(cx,cy),mPaint);
    }

    @Override
    public void setAlpha(int alpha) {
        mPaint.setAlpha(alpha);
        invalidateSelf();

    }

    @Override
    public void setColorFilter(ColorFilter colorFilter) {

        mPaint.setColorFilter(colorFilter);
    }

    @Override
    public int getOpacity() {
        return PixelFormat.TRANSLUCENT;
    }
}

圓形Drawable

public class CircleImageDrawable extends Drawable {

    private Paint mPaint;
    private int mWidth;
    private Bitmap mBitmap ;

    public CircleImageDrawable(Bitmap bitmap)
    {
        mBitmap = bitmap ;
        BitmapShader bitmapShader = new BitmapShader(bitmap, Shader.TileMode.CLAMP,
                Shader.TileMode.CLAMP);
        mPaint = new Paint();
        mPaint.setAntiAlias(true);
        mPaint.setShader(bitmapShader);
        mWidth = Math.min(mBitmap.getWidth(), mBitmap.getHeight());
    }

    @Override
    public void draw(Canvas canvas)
    {
        canvas.drawCircle(mWidth / 2, mWidth / 2, mWidth / 2, mPaint);
    }

    @Override
    public int getIntrinsicWidth()
    {
        return mWidth;
    }

    @Override
    public int getIntrinsicHeight()
    {
        return mWidth;
    }

    @Override
    public void setAlpha(int alpha)
    {
        mPaint.setAlpha(alpha);
    }

    @Override
    public void setColorFilter(ColorFilter cf)
    {
        mPaint.setColorFilter(cf);
    }

    @Override
    public int getOpacity()
    {
        return PixelFormat.TRANSLUCENT;
    }
}

圓角矩形Drawable

public class RoundImageDrawable extends Drawable {
    private Paint mPaint;
    private Bitmap mBitmap;

    private RectF rectF;

    public RoundImageDrawable(Bitmap bitmap)
    {
        mBitmap = bitmap;
        BitmapShader bitmapShader = new BitmapShader(bitmap, Shader.TileMode.CLAMP,
                Shader.TileMode.CLAMP);
        mPaint = new Paint();
        mPaint.setAntiAlias(true);
        mPaint.setShader(bitmapShader);
    }

    @Override
    public void setBounds(int left, int top, int right, int bottom)
    {
        super.setBounds(left, top, right, bottom);
        rectF = new RectF(left, top, right, bottom);
    }

    @Override
    public void draw(Canvas canvas)
    {
        canvas.drawRoundRect(rectF, 30, 30, mPaint);
    }

    @Override
    public int getIntrinsicWidth()
    {
        return mBitmap.getWidth();
    }

    @Override
    public int getIntrinsicHeight()
    {
        return mBitmap.getHeight();
    }

    @Override
    public void setAlpha(int alpha)
    {
        mPaint.setAlpha(alpha);
    }

    @Override
    public void setColorFilter(ColorFilter cf)
    {
        mPaint.setColorFilter(cf);
    }

    @Override
    public int getOpacity()
    {
        return PixelFormat.TRANSLUCENT;
    }
}