在开发过程中我们往往会遇到图片旁边带文字的布局,这种布局有些比较Low的开发会直接用一个ImageView和TextView,有经验的会给TextView设置DrawableLeft、DrawableRight等等属性,一个View搞定,但是这个属性设置图片是无法控制大小的,在xml里面,当然在Java代码里是可以设置的。
TextView textView = new TextView(mContext);
Drawable drawable = getResources().getDrawable(R.drawable.icon_friend);
// 设置图片的大小
drawable.setBounds(0, 0, 20, 20);
// 设置图片的位置,左、上、右、下
textView.setCompoundDrawables(null, null, drawable, null);
当然,我们还可以用自定义View来实现这个效果,代码也是非常的简单
<!-- 图片文字自定义属性 -->
<declare-styleable name="DrawableTextView">
<attr name="drawableLeft" format="reference"/>
<attr name="drawableBottom" format="reference"/>
<attr name="drawableRight" format="reference"/>
<attr name="drawableTop" format="reference"/>
<attr name="drawableWidth" format="dimension"/>
<attr name="drawableHeight" format="dimension"/>
</declare-styleable>
import android.content.Context;
import android.content.res.TypedArray;
import android.graphics.drawable.Drawable;
import android.support.annotation.Nullable;
import android.util.AttributeSet;
import com.rzj.zhongshi.R;
public class DrawableTextView extends android.support.v7.widget.AppCompatTextView {
private Drawable drawableLeft = null, drawableTop = null, drawableRight = null,
drawableBottom = null;
private int drawableWidth, drawableHeight;
public DrawableTextView(Context context) {
this(context, null);
}
public DrawableTextView(Context context, @Nullable AttributeSet attrs) {
this(context, attrs, 0);
}
public DrawableTextView(Context context, @Nullable AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
TypedArray typedArray = context.obtainStyledAttributes(attrs, R.styleable.DrawableTextView);
int count = typedArray.getIndexCount();
for(int i = 0; i < count; i++){
int attr = typedArray.getIndex(i);
switch (attr){
case R.styleable.DrawableTextView_drawableRight:
drawableRight = typedArray.getDrawable(attr);
break;
case R.styleable.DrawableTextView_drawableLeft:
drawableLeft = typedArray.getDrawable(attr);
break;
case R.styleable.DrawableTextView_drawableTop:
drawableTop = typedArray.getDrawable(attr);
break;
case R.styleable.DrawableTextView_drawableBottom:
drawableBottom = typedArray.getDrawable(attr);
break;
case R.styleable.DrawableTextView_drawableWidth:
drawableWidth = typedArray.getDimensionPixelSize(attr, 0);
break;
case R.styleable.DrawableTextView_drawableHeight:
drawableHeight = typedArray.getDimensionPixelSize(attr,0);
break;
}
}
if(null != drawableLeft){
drawableLeft.setBounds(0,0, drawableWidth, drawableHeight);
}
if(null != drawableRight){
drawableRight.setBounds(0,0, drawableWidth, drawableHeight);
}
if(null != drawableTop){
drawableTop.setBounds(0,0, drawableWidth, drawableHeight);
}
if(null != drawableBottom){
drawableBottom.setBounds(0,0, drawableWidth, drawableHeight);
}
setCompoundDrawables(drawableLeft, drawableTop, drawableRight, drawableBottom);
}
}