解决TextView drawableRight左侧图片大小不可控的问题

通过代码来修改图片的大小：

Drawable rightDrawable= context.getResources().getDrawable(R.drawable.more);
rightDrawable.setBounds(0, 0, drawable.getIntrinsicWidth() / 2, drawable.getIntrinsicHeight() / 2)
tvMore.setCompoundDrawablesWithIntrinsicBounds(null,null,rightDrawable,null);

其他解决方法

/**
* Package Name:com.xes.jazhanghui.views ClassName: ImageTextView <br/>
* Description: 解决TextView 图片大小不可控问题. <br/>
* Date: 2017-2-21 下午4:52:45 <br/>
*
* @author lihuixin
* @version
*/public class ImageTextView extends TextView {
private Drawable mDrawable;//设置的图片private int mScaleWidth; // 图片的宽度private int mScaleHeight;// 图片的高度private int mPosition;// 图片的位置 1上2左3下4右public ImageTextView(Context context) {
super(context);
}

public ImageTextView(Context context, AttributeSet attrs) {
super(context, attrs);
init(context, attrs);
}

public ImageTextView(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
init(context, attrs);
}

public void init(Context context, AttributeSet attrs) {
TypedArray typedArray = context.obtainStyledAttributes(attrs,
R.styleable.ImageTextView);

mDrawable = typedArray.getDrawable(R.styleable.ImageTextView_drawable);
mScaleWidth = typedArray
.getDimensionPixelOffset(
R.styleable.ImageTextView_drawableWidth,
DensityUtil.dip2px(20));
mScaleHeight = typedArray.getDimensionPixelOffset(
R.styleable.ImageTextView_drawableHeight,
DensityUtil.dip2px(20));
mPosition = typedArray.getInt(R.styleable.ImageTextView_position, 3);
}

@Overrideprotected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
if (mDrawable != null) {
mDrawable.setBounds(0, 0, DensityUtil.dip2px(mScaleWidth),
DensityUtil.dip2px(mScaleHeight));

}
}

@Overrideprotected void onDraw(Canvas canvas) {
super.onDraw(canvas);
switch (mPosition) {
case 1:
this.setCompoundDrawables(mDrawable, null, null, null);
break;
case 2:
this.setCompoundDrawables(null, mDrawable, null, null);
break;
case 3:
this.setCompoundDrawables(null, null, mDrawable, null);
break;
case 4:
this.setCompoundDrawables(null, null, null, mDrawable);
break;
default:
break;
}
}

/**
* 设置左侧图片并重绘
*
* @param drawableLeft
*/public void setDrawableLeft(Drawable drawable) {
this.mDrawable = drawable;
invalidate();
}

/**
* 设置左侧图片并重绘
*
* @param drawableLeftRes
*/public void setDrawableLeft(int drawableRes, Context context) {
this.mDrawable = context.getResources().getDrawable(drawableRes);
invalidate();
}
}

<declare-styleable name="ImageTextView">
<attr name="drawable" format="reference"/>
<attr name="drawableWidth" format="dimension"/>
<attr name="drawableHeight" format="dimension"/>
<attr name="position" format="integer"/>
</declare-styleable>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:app="http://schemas.android.com/apk/res/com.xes.jazhanghui.activity"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@drawable/bg_block_inset_white_ltr_8"
android:orientation="vertical" >

<com.xes.jazhanghui.views.ImageTextView
android:id="@+id/tv_more"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:drawablePadding="5dp"
android:text="更多"
android:textColor="@color/color_737373"
android:textSize="12sp"
app:drawable="@drawable/more"
app:drawableHeight="4dp"
app:drawableWidth="3dp"
app:position="3" />

</RelativeLayout>

</LinearLayout>

来源： http://www.jianshu.com/p/7d1c16e0b64b