自定义带有删除功能的EditText

实例：在登录，搜索等地方经常用到可以直接用

package com.android.myedittext;import com.android.myedittext.R;import android.content.Context;import android.graphics.Rect;import android.graphics.drawable.Drawable;import android.text.Editable;import android.text.TextWatcher;import android.util.AttributeSet;import android.util.Log;import android.view.MotionEvent;import android.widget.EditText;public class EditTextWithDel extends EditText {    private final static String TAG = "EditTextWithDel";    private Drawable imgInable;    private Drawable imgAble;    private Context mContext;    public EditTextWithDel(Context context) {        super(context);        mContext = context;        init();    }    public EditTextWithDel(Context context, AttributeSet attrs, int defStyle) {        super(context, attrs, defStyle);        mContext = context;        init();    }    public EditTextWithDel(Context context, AttributeSet attrs) {        super(context, attrs);        mContext = context;        init();    }    private void init() {        imgInable = mContext.getResources().getDrawable(R.drawable.delete_gray);        imgAble = mContext.getResources().getDrawable(R.drawable.delete);        addTextChangedListener(new TextWatcher() {            @Override            public void onTextChanged(CharSequence s, int start, int before, int count) {}            @Override            public void beforeTextChanged(CharSequence s, int start, int count, int after) {}            @Override            public void afterTextChanged(Editable s) {                setDrawable();            }        });        setDrawable();    }    //设置删除图片    private void setDrawable() {        if(length() < 1)            setCompoundDrawablesWithIntrinsicBounds(null, null, imgInable, null);        else            setCompoundDrawablesWithIntrinsicBounds(null, null, imgAble, null);    }     // 处理删除事件    @Override    public boolean onTouchEvent(MotionEvent event) {        if (imgAble != null && event.getAction() == MotionEvent.ACTION_UP) {            int eventX = (int) event.getRawX();            int eventY = (int) event.getRawY();            Log.e(TAG, "eventX = " + eventX + "; eventY = " + eventY);            Rect rect = new Rect();            getGlobalVisibleRect(rect);            rect.left = rect.right - 50;            if(rect.contains(eventX, eventY))                 setText("");        }        return super.onTouchEvent(event);    }    @Override    protected void finalize() throws Throwable {        super.finalize();    }}