Android DrawableTextView图片文字居中显示实例

DrawableTextView.Java:

packagecom.xing.drawabletextview;

importandroid.content.Context;

importandroid.graphics.Canvas;

importandroid.graphics.drawable.Drawable;

importandroid.util.AttributeSet;

importandroid.widget.TextView;

/**

 * Created by Administrator on 2017/2/28.

 */

publicclassDrawableTextViewextendsTextView {

  publicDrawableTextView(Context context) {

    this(context,null);

  }

  publicDrawableTextView(Context context, AttributeSet attrs) {

    this(context, attrs,0);

  }

  publicDrawableTextView(Context context, AttributeSet attrs,intdefStyleAttr) {

    super(context, attrs, defStyleAttr);

  }

  @Override

  protectedvoidonDraw(Canvas canvas) {

    // getCompoundDrawables() : Returns drawables for the left, top, right, and bottom borders.

    Drawable[] drawables = getCompoundDrawables();

    // 得到drawableLeft设置的drawable对象

    Drawable leftDrawable = drawables[0];

    if(leftDrawable !=null) {

      // 得到leftDrawable的宽度

      intleftDrawableWidth = leftDrawable.getIntrinsicWidth();

      // 得到drawable与text之间的间距

      intdrawablePadding = getCompoundDrawablePadding();

      // 得到文本的宽度

      inttextWidth = (int) getPaint().measureText(getText().toString().trim());

      intbodyWidth = leftDrawableWidth + drawablePadding + textWidth;

      canvas.save();

      canvas.translate((getWidth() - bodyWidth) /2,0);

    }

    super.onDraw(canvas);

  }

}

    android:layout_width="match_parent"

    android:layout_height="100dp"

    android:orientation="horizontal">

      android:layout_width="0dp"

      android:layout_height="wrap_content"

      android:layout_weight="1"

      android:drawableLeft="@drawable/ic_one"

      android:drawablePadding="10dp"

      android:gravity="center_vertical"

      android:text="21"/>

      android:layout_width="0dp"

      android:layout_height="wrap_content"

      android:layout_weight="1"

      android:drawableLeft="@drawable/ic_two"

      android:drawablePadding="10dp"

      android:gravity="center_vertical"

      android:text="99"/>

      android:layout_width="0dp"

      android:layout_height="wrap_content"

      android:layout_weight="1"

      android:drawableLeft="@drawable/ic_three"

      android:drawablePadding="10dp"

      android:gravity="center_vertical"

      android:text="99+"/>