package me.henji.widget; import android.content.Context; import android.graphics.ColorMatrix; import android.graphics.ColorMatrixColorFilter; import android.util.AttributeSet; import android.view.MotionEvent; import android.view.View; import android.view.View.OnFocusChangeListener; import android.view.View.OnTouchListener; import android.widget.ImageButton; /**  * 自定义图片按钮（ImageButton），按下颜色改变  * @author Leo  * @created 2013-3-15  */ public class CmButton extends ImageButton implements OnTouchListener, OnFocusChangeListener {  public CmButton(Context context) {   super(context);   this.setOnTouchListener(this);   this.setOnFocusChangeListener(this);  }  public CmButton(Context context, AttributeSet attrs) {   this(context, attrs, android.R.attr.imageButtonStyle);   this.setOnTouchListener(this);   this.setOnFocusChangeListener(this);  }  public CmButton(Context context, AttributeSet attrs, int defStyle) {   super(context, attrs, defStyle);   setFocusable(true);   this.setOnTouchListener(this);   this.setOnFocusChangeListener(this);  }  @Override  public void onFocusChange(View v, boolean hasFocus) {   // 灰色效果   ColorMatrix cm = new ColorMatrix();   cm.setSaturation(0);   if (hasFocus) {    ((ImageButton) v).getDrawable().setColorFilter(new ColorMatrixColorFilter(cm));   } else {    ((ImageButton) v).getDrawable().clearColorFilter();   }  }  @Override  public boolean onTouch(View v, MotionEvent event) {   // 灰色效果   ColorMatrix cm = new ColorMatrix();   cm.setSaturation(0);   if (event.getAction() == MotionEvent.ACTION_DOWN) {    ((ImageButton) v).getDrawable().setColorFilter(new ColorMatrixColorFilter(cm));   } else if (event.getAction() == MotionEvent.ACTION_UP) {    ((ImageButton) v).getDrawable().clearColorFilter();   }   return false;  } }

<me.henji.widget.CmButton     android:id="@+id/btn_login"     android:layout_width="match_parent"     android:layout_height="wrap_content"     android:background="#00000000"     android:src="@drawable/button_login"     android:text="@string/login_login" />