Android带清除功能的输入框控件EditTextWithDel

package com.xiaolijuan.edittextwithdeldome;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;/** * @author: adan * @description: 自定义带有删除功能的EditText * @projectName: EditTextWithDelDome * @date: 2016-02-28 * @time: 23:34 */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() { imgAble = mContext.getResources().getDrawable(  R.mipmap.icon_delete_gray); 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, null, 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(); }}

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical"> <RelativeLayout android:layout_width="match_parent" android:layout_height="60dp" android:layout_margin="25dp" android:background="#ffffff"> <ImageView  android:id="@+id/img"  android:layout_width="25dp"  android:layout_height="30dp"  android:layout_alignParentLeft="true"  android:layout_centerVertical="true"  android:layout_margin="5dp"  android:src="@mipmap/ic_launcher" /> <ImageView  android:layout_width="match_parent"  android:layout_height="1dp"  android:layout_alignParentBottom="true"  android:layout_marginLeft="2dp"  android:layout_marginRight="2dp"  android:background="#56AB55" /> <com.xiaolijuan.edittextwithdeldome.EditTextWithDel  android:id="@+id/et_phoneNumber"  android:layout_width="wrap_content"  android:layout_height="wrap_content"  android:layout_alignParentBottom="true"  android:layout_alignParentRight="true"  android:layout_alignParentTop="true"  android:layout_margin="2dp"  android:layout_toRightOf="@+id/img"  android:background="#ffffff"  android:hint="请输入手机号码"  android:maxLength="11"  android:phoneNumber="true"  android:singleLine="true" /> </RelativeLayout> <Button android:id="@+id/btn" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_margin="25dp" android:background="#56AB55" android:text="确定" /></LinearLayout>

package com.xiaolijuan.edittextwithdeldome;import android.app.Activity;import android.os.Bundle;import android.text.TextUtils;import android.view.View;import android.widget.EditText;import android.widget.Toast;public class MainActivity extends Activity { private EditText userName; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); userName = (EditText) findViewById(R.id.et_phoneNumber); findViewById(R.id.btn).setOnClickListener(new View.OnClickListener() {  @Override  public void onClick(View v) {  if (TextUtils.isEmpty(userName.getText().toString())){   Toast.makeText(getApplicationContext(),"手机号码为空",Toast.LENGTH_LONG).show();   return;  }  Toast.makeText(getApplicationContext(),userName.getText().toString(),Toast.LENGTH_LONG).show();  } }); }}