TextView控件中使用android:drawableLeft图片和文字使用gravity只能使文字居中,无法使图片随文字同时居中, 让图片随文字同时居中
1.xml布局
<com.yld.administrator.DrawableCenterTextView //包名.DrawableCenterTextView
android:text="同意"
android:background="#00ff00"
android:layout_width="0dp"
android:layout_weight="1"
android:layout_height="wrap_content"
android:drawableLeft="@mipmap/opendoor9"
android:layout_margin="5dp" />
1.DrawableCenterTextView类
public class DrawableCenterTextView extends android.support.v7.widget.AppCompatTextView{
public DrawableCenterTextView(Context context, AttributeSet attrs, int defStyle) { super(context, attrs, defStyle); }
public DrawableCenterTextView(Context context, AttributeSet attrs) { super(context, attrs); }
public DrawableCenterTextView(Context context) { super(context); }
@Override
protected void onDraw(Canvas canvas) {
Drawable[] drawables = getCompoundDrawables();
if (drawables != null) {
Drawable drawableLeft = drawables[0];
if (drawableLeft != null) {
float textWidth = getPaint().measureText(getText().toString());
int drawablePadding = getCompoundDrawablePadding();
int drawableWidth = 0;
drawableWidth = drawableLeft.getIntrinsicWidth();
float bodyWidth = textWidth + drawableWidth + drawablePadding;
canvas.translate((getWidth() - bodyWidth) / 2, 0);
}
}
super.onDraw(canvas);
}
}