1 import android.content.Context; 2 import android.graphics.Rect; 3 import android.graphics.drawable.Drawable; 4 import android.text.Editable; 5 import android.text.TextWatcher; 6 import android.util.AttributeSet; 7 import android.util.Log; 8 import android.view.MotionEvent; 9 import android.widget.EditText;10 11  12 public class EditTextWithDel extends EditText {13     private final static String TAG = "EditTextWithDel";14     private Drawable imgInable;15     private Drawable imgAble;16     private Context mContext;17 18     public EditTextWithDel(Context context) {19         super(context);20         mContext = context;21         init();22     }23 24     public EditTextWithDel(Context context, AttributeSet attrs, int defStyle) {25         super(context, attrs, defStyle);26         mContext = context;27         init();28     }29 30     public EditTextWithDel(Context context, AttributeSet attrs) {31         super(context, attrs);32         mContext = context;33         init();34     }35     36     private void init() {37         // 灰色叉号38         imgInable = mContext.getResources().getDrawable(R.drawable.delete_gray);39         // 带色叉号40         imgAble = mContext.getResources().getDrawable(R.drawable.delete);41         addTextChangedListener(new TextWatcher() {42             @Override43             public void onTextChanged(CharSequence s, int start, int before, int count) {}44             @Override45             public void beforeTextChanged(CharSequence s, int start, int count, int after) {}46             @Override47             public void afterTextChanged(Editable s) {48                 setDrawable();49             }50         });51         setDrawable();52     }53     54     //设置删除图片55     private void setDrawable() {56         if(length() < 1)57             setCompoundDrawablesWithIntrinsicBounds(null, null, imgInable, null);58         else59             setCompoundDrawablesWithIntrinsicBounds(null, null, imgAble, null);60     }61     62      // 处理删除事件63     @Override64     public boolean onTouchEvent(MotionEvent event) {65         if (imgAble != null && event.getAction() == MotionEvent.ACTION_UP) {66             int eventX = (int) event.getRawX();67             int eventY = (int) event.getRawY();68             Log.e(TAG, "eventX = " + eventX + "; eventY = " + eventY);69             Rect rect = new Rect();70             getGlobalVisibleRect(rect);71             rect.left = rect.right - 50;72             if(rect.contains(eventX, eventY)) 73                 setText("");74         }75         return super.onTouchEvent(event);76     }77 78     @Override79     protected void finalize() throws Throwable {80         super.finalize();81     }82 83 }

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