1 package com.sixin.view;  2   3 import android.content.Context;  4 import android.graphics.Canvas;  5 import android.graphics.Color;  6 import android.graphics.Paint;  7 import android.graphics.Rect;  8 import android.graphics.drawable.Drawable;  9 import android.text.Editable; 10 import android.text.TextWatcher; 11 import android.util.AttributeSet; 12 import android.view.MotionEvent; 13 import android.widget.EditText; 14  15 import com.sixin.R; 16  17 /** 18  * 带删除图标的EditText 19  *  20  * @author shidongxue 21  *  22  */ 23 public class EditTextWithDel extends EditText { 24     private Drawable imgInable; 25     private Context mContext; 26     private Paint mPaint; 27  28     public EditTextWithDel(Context context) { 29         super(context); 30         mContext = context; 31         init(); 32     } 33  34     public EditTextWithDel(Context context, AttributeSet attrs, int defStyle) { 35         super(context, attrs, defStyle); 36         mContext = context; 37         init(); 38     } 39  40     public EditTextWithDel(Context context, AttributeSet attrs) { 41         super(context, attrs); 42         mContext = context; 43         init(); 44     } 45  46     private void init() { 47         mPaint = new Paint(); 48         mPaint.setStyle(Paint.Style.STROKE); 49         mPaint.setColor(Color.GRAY); 50         imgInable = mContext.getResources().getDrawable(R.drawable.btn_del); 51         addTextChangedListener(new TextWatcher() { 52             @Override 53             public void onTextChanged(CharSequence s, int start, int before, int count) { 54             } 55  56             @Override 57             public void beforeTextChanged(CharSequence s, int start, int count, int after) { 58             } 59  60             @Override 61             public void afterTextChanged(Editable s) { 62                 setDrawable(); 63             } 64         }); 65         setDrawable(); 66     } 67  68     // 设置删除图片 69     public void setDrawable() { 70         if (length() > 0 && isFocused()) { 71             setCompoundDrawablesWithIntrinsicBounds(null, null, imgInable, null); 72         } else { 73             setCompoundDrawablesWithIntrinsicBounds(null, null, null, null); 74         } 75     } 76  77     @Override 78     protected void onFocusChanged(boolean focused, int direction, Rect previouslyFocusedRect) { 79         super.onFocusChanged(focused, direction, previouslyFocusedRect); 80         if (focused) { 81             setCursorVisible(true); 82         } else { 83             setCursorVisible(false); 84         } 85         setDrawable(); 86     } 87  88     // 处理删除事件 89     @Override 90     public boolean onTouchEvent(MotionEvent event) { 91         if (imgInable != null && event.getAction() == MotionEvent.ACTION_UP) { 92             int eventX = (int) event.getRawX(); 93             int eventY = (int) event.getRawY(); 94             Rect rect = new Rect(); 95             int r = getPaddingRight(); 96             getGlobalVisibleRect(rect); 97             rect.left = rect.right - r - 60; 98             rect.right = rect.right - r; 99             if (rect.contains(eventX, eventY))100                 setText("");101         }102         return super.onTouchEvent(event);103     }104 105     @Override106     protected void onDraw(Canvas canvas) {107         super.onDraw(canvas);108     }109 110     @Override111     protected void finalize() throws Throwable {112         super.finalize();113     }114 115 }