可以设置textview图片的大小

TextViewDrawableSize.java

package com.wukongtv.wkremote.client.widget;

import android.content.Context;
import android.content.res.TypedArray;
import android.graphics.Rect;
import android.graphics.drawable.Drawable;
import android.util.AttributeSet;
import android.widget.TextView;

import com.wukongtv.wkremote.client.R;

/**
 * Created by sadieyu
 * Date: 15-10-14.
 * Time: ${Time}.
 * Pkg: com.wukongtv.wkremote.client.widget
 * <p/>
 * resource in attrs.xml
 * <declare-styleable name="TextViewDrawableSize">
 * <attr name="compoundDrawableWidth" format="dimension" />
 * <attr name="compoundDrawableHeight" format="dimension" />
 * </declare-styleable>
 * 
 * <com.wukongtv.wkremote.client.widget.TextViewDrawableSize
 * android:layout_width="wrap_content"
 * android:layout_height="wrap_content"
 * android:drawableLeft="@drawable/ic_launcher"
 * android:drawablePadding="4dp"
 * app:compoundDrawableHeight="16dp"
 * app:compoundDrawableWidth="16dp"/>
 */
public class TextViewDrawableSize extends TextView {

    private int mDrawableWidth;
    private int mDrawableHeight;

    public TextViewDrawableSize(Context context) {
        this(context, null);
    }

    public TextViewDrawableSize(Context context, AttributeSet attrs) {
        this(context, attrs, 0);
    }

    public TextViewDrawableSize(Context context, AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
        init(context, attrs, defStyleAttr, 0);
    }

    private void init(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) {
        TypedArray array = context.obtainStyledAttributes(attrs, R.styleable.TextViewDrawableSize, defStyleAttr, defStyleRes);

        try {
            mDrawableWidth = array.getDimensionPixelSize(R.styleable.TextViewDrawableSize_compoundDrawableWidth, -1);
            mDrawableHeight = array.getDimensionPixelSize(R.styleable.TextViewDrawableSize_compoundDrawableHeight, -1);
        } finally {
            array.recycle();
        }
        initCompoundDrawableSize();
    }

    private void initCompoundDrawableSize() {
        if (mDrawableWidth > 0 || mDrawableHeight > 0) {
            Drawable[] drawables = getCompoundDrawables();
            for (Drawable drawable : drawables) {
                if (drawable == null) {
                    continue;
                }

                Rect realBounds = drawable.getBounds();
                float scaleFactor = realBounds.height() / (float) realBounds.width();

                float drawableWidth = realBounds.width();
                float drawableHeight = realBounds.height();

                if (mDrawableWidth > 0) {
                    // save scale factor of image
                    if (drawableWidth > mDrawableWidth) {
                        drawableWidth = mDrawableWidth;
                        drawableHeight = drawableWidth * scaleFactor;
                    }
                }
                if (mDrawableHeight > 0) {
                    // save scale factor of image

                    if (drawableHeight > mDrawableHeight) {
                        drawableHeight = mDrawableHeight;
                        drawableWidth = drawableHeight / scaleFactor;
                    }
                }

                realBounds.right = realBounds.left + Math.round(drawableWidth);
                realBounds.bottom = realBounds.top + Math.round(drawableHeight);

                drawable.setBounds(realBounds);
            }
            setCompoundDrawables(drawables[0], drawables[1], drawables[2], drawables[3]);
        }
    }
}

    <com.wukongtv.wkremote.client.widget.TextViewDrawableSize
        android:id="@+id/tv_sourcelist"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_vertical"
        android:background="@drawable/video_detail_sourcelist_selector"
        android:gravity="center"
        android:padding="4dp"
        android:drawableLeft="@drawable/ic_launcher"
        android:drawablePadding="4dp"
        app:compoundDrawableHeight="16dp"
        app:compoundDrawableWidth="16dp"
        android:textColor="@color/video_detail_80_white"
        android:layout_marginRight="12dp"/>