android TextView中設置圖片大小

動態設置圖片寬高

        TextView textView = new TextView(mContext);
        Drawable drawable = getResources().getDrawable(R.drawable.file);
        // 設置圖片的大小
        drawable.setBounds(0, 0, 80, 80);
        // 設置圖片的位置，左、上、右、下
        textView.setCompoundDrawables(null, null, drawable, null);

自定義TextView然後在xml中設置圖片寬高

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

import androidx.annotation.Nullable;
import androidx.appcompat.widget.AppCompatTextView;

import com.huaiye.ecs.R;

public class DrawableTextView extends 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);
    }

}

TextView新增的屬性

    <!-- 圖片文字自定義屬性 -->
    <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>

使用：新增的屬性得用 app： 作爲開頭

        <包名.DrawableTextView
            android:id="@+id/tv_upload"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="本地上傳"
            android:background="@drawable/background_upload"
            android:drawablePadding="5dp" 
            app:drawableTop="@drawable/file"
            app:drawableHeight="30dp"
            app:drawableWidth="30dp"
            />