專案中經常遇到一個按鈕需要不同的狀態效果，如點選效果、普通效果、禁用效果等，如果給每個控制元件都在drawable下新建個xml樣式檔案，那一個工程下來，就會有太多的xml檔案， 所以通過程式碼實現樣式效果，一勞永逸。

程式碼：

多張圖片樣式：

<span style="font-size:14px;">public  StateListDrawable createStateListDrawable() {
		StateListDrawable state = new StateListDrawable();
		state.addState(new int[]{-android.R.attr.state_enabled}, mAttrs.getDisableDrawable());
		state.addState(new int[]{android.R.attr.state_checked}, mAttrs.getCheckedDrawable());
		state.addState(new int[]{android.R.attr.state_pressed}, mAttrs.getPressedDrawable());
		state.addState(new int[]{}, mAttrs.getNormalDrawable());
		return state;
	}</span>
 

<span style="font-size:14px;">/**
 * 形狀狀態
 * @author thduan
 * 2015-12-29 15:12:19
 */
public class ShapeStateListCreator {
	private ShapeAttrs mAttrs;
	
	public ShapeStateListCreator(ShapeAttrs attrs) {
		mAttrs = attrs;
	}
	
	public StateListDrawable createStateListDrawable() {
		DrawableAttrs drawableAttrs = new DrawableAttrs();
		drawableAttrs.setNormalDrawable(normalDrawable());
		drawableAttrs.setPressedDrawable(pressedDrawable());
		drawableAttrs.setCheckedDrawable(checkedDrawable());
		drawableAttrs.setDisableDrawable(disableDrawable());
		return new DrawableStateListCreator(drawableAttrs).createStateListDrawable();
	}
	
	private GradientDrawable disableDrawable() {
		if(mAttrs.hasDisableState()) {
			return newGradientDrawable(mAttrs.getDisableArgb(), 
					mAttrs.getStrokeDisableArgb());
		}else {
			return null;
		}
	}
	
	private GradientDrawable pressedDrawable() {
		if(mAttrs.hasPressedState()) {
			return newGradientDrawable(mAttrs.getPressedArgb(), 
					mAttrs.getStrokePressedArgb());
		}else {
			return null;
		}
	}
	
	private GradientDrawable checkedDrawable() {
		if(mAttrs.hasCheckedState()) {
			return newGradientDrawable(mAttrs.getCheckedArgb(), 
					mAttrs.getStrokeCheckedArgb());
		}else {
			return null;
		}
	}
	
	private GradientDrawable normalDrawable() {
		if(mAttrs.hasNormalState()) {
			return newGradientDrawable(mAttrs.getNormalArgb(), 
					mAttrs.getStrokeNormalArgb());
		}else {
			return null;
		}
	}
	
	private GradientDrawable newGradientDrawable(int color, int strokeColor) {
		GradientDrawable drawable = new GradientDrawable();
		drawable.setShape(mAttrs.getShapeType());
		drawable.setColor(color);
		drawable.setStroke(mAttrs.getStrokeWidth(), strokeColor);
		if(mAttrs.getCornerRadii() != null && mAttrs.getCornerRadii().length == 8) {
			drawable.setCornerRadii(mAttrs.getCornerRadii());
		}
		return drawable;
	}
}
</span>
 

activity中使用：

ImageView imageView = (ImageView) findViewById(R.id.imageView);
    	imageView.setOnClickListener(new OnClickListener() {
			
			@Override
			public void onClick(View v) {
				
			}
		});
    	DrawableTools.setImageDrawableWithStateList(imageView, 
    			new ShapeAttrs()    //畫形狀
    				.setNormalArgb("#D682A3")  //普通時的顏色
    				.setPressedArgb("#A8D499") //按下時的顏色
    				.setStrokeWidth(4)  //如果不希望有邊框，不設定該屬性即可，或設定為0
    				.shapeOval()     //形狀為圓形， 還可以設定為矩形
    				.setStrokeNormalArgb("#0000ff")  //普通時邊框的顏色
    				.setStrokePressedArgb("#F9DF92") //按下時邊框的顏色
    			);