Android Cleanedittext automatically with X number input box EditText

Icon is here. You know
The effect of the implementation is as follows:
The problem of doing the project today. Recorded. EditText with the Delete button automatically.

  
 

   
  

  
public class CleanEditText extends EditText implements OnFocusChangeListener, TextWatcher { 
   
  

  
/**
   
  

  
 * 删除按钮的引用
   
  

  
 */
   
  

  
 private Drawable mClearDrawable; 
   
  

  
 
   
  

  
 public CleanEditText(Context context) { 
   
  

  
 this(context, null); 
   
  

  
 } 
   
  

  
 
   
  

  
 public CleanEditText(Context context, AttributeSet attrs) { 
   
  

  
 //这里构造方法也很重要，不加这个很多属性不能再XML里面定义
   
  

  
 this(context, attrs, android.R.attr.editTextStyle); 
   
  

  
 } 
   
  

  
 
   
  

  
 public CleanEditText(Context context, AttributeSet attrs, int defStyle) {
   
  

  
 super(context, attrs, defStyle);
   
  

  
 init();
   
  

  
 }
   
  

  
 
   
  

  
 
   
  

  
 private void init() { 
   
  

  
 //获取EditText的DrawableRight,假如没有设置我们就使用默认的图片
   
  

  
 mClearDrawable = getCompoundDrawables()[2]; 
   
  

  
 if (mClearDrawable == null) { 
   
  

  
 mClearDrawable = getResources() 
   
  

  
 .getDrawable(R.drawable.ic_clear_black); 
   
  

  
 } 
   
  

  
 mClearDrawable.setBounds(0, 0, mClearDrawable.getIntrinsicWidth(), mClearDrawable.getIntrinsicHeight()); 
   
  

  
 setClearIconVisible(false); 
   
  

  
 setOnFocusChangeListener(this); 
   
  

  
 addTextChangedListener(this); 
   
  

  
 } 
   
  

  
 
   
  

  
 /**
   
  

  
 * 因为我们不能直接给EditText设置点击事件，所以我们用记住我们按下的位置来模拟点击事件
   
  

  
 * 当我们按下的位置 在 EditText的宽度 - 图标到控件右边的间距 - 图标的宽度 和
   
  

  
 * EditText的宽度 - 图标到控件右边的间距之间我们就算点击了图标，竖直方向没有考虑
   
  

  
 */
   
  

  
 @Override 
   
  

  
 public boolean onTouchEvent(MotionEvent event) { 
   
  

  
 if (getCompoundDrawables()[2] != null) { 
   
  

  
 if (event.getAction() == MotionEvent.ACTION_UP) { 
   
  

  
 boolean touchable = event.getX() > (getWidth() 
   
  

  
 - getPaddingRight() - mClearDrawable.getIntrinsicWidth()) 
   
  

  
 && (event.getX() < ((getWidth() - getPaddingRight())));
   
  

  
 if (touchable) { 
   
  

  
 this.setText(""); 
   
  

  
 } 
   
  

  
 } 
   
  

  
 } 
   
  

  
 
   
  

  
 return super.onTouchEvent(event); 
   
  

  
 } 
   
  

  
 
   
  

  
 /**
   
  

  
 * 当ClearEditText焦点发生变化的时候，判断里面字符串长度设置清除图标的显示与隐藏
   
  

  
 */
   
  

  
 @Override 
   
  

  
 public void onFocusChange(View v, boolean hasFocus) { 
   
  

  
 if (hasFocus) { 
   
  

  
 setClearIconVisible(getText().length() > 0); 
   
  

  
 } else { 
   
  

  
 setClearIconVisible(false); 
   
  

  
 } 
   
  

  
 } 
   
  

  
 
   
  

  
 
   
  

  
 /**
   
  

  
 * 设置清除图标的显示与隐藏，调用setCompoundDrawables为EditText绘制上去
   
  

  
 * @param visible
   
  

  
 */
   
  

  
 protected void setClearIconVisible(boolean visible) { 
   
  

  
if (this.isEnabled()) {
   
  

  
Drawable right = visible ? mClearDrawable : null;
   
  

  
setCompoundDrawables(getCompoundDrawables()[0],
   
  

  
getCompoundDrawables()[1], right, getCompoundDrawables()[3]);
   
  

  
}
   
  

  
 } 
   
  

  
 
   
  

  
 
   
  

  
 /**
   
  

  
 * 当输入框里面内容发生变化的时候回调的方法
   
  

  
 */
   
  

  
 @Override 
   
  

  
public void onTextChanged(CharSequence s, int start, int count, int after) {
   
  

  
setClearIconVisible(s.length() > 0);
   
  

  
}
   
  

  
 
   
  

  
 @Override 
   
  

  
 public void beforeTextChanged(CharSequence s, int start, int count, 
   
  

  
 int after) { 
   
  

  
 
   
  

  
 } 
   
  

  
 
   
  

  
 @Override 
   
  

  
 public void afterTextChanged(Editable s) { 
   
  

  
 
   
  

  
 } 
   
  

  
 
   
  

  
 
   
  

  
 /**
   
  

  
 * 设置晃动动画
   
  

  
 */
   
  

  
 public void setShakeAnimation(){
   
  

  
 this.setAnimation(shakeAnimation(5));
   
  

  
 }
   
  

  
 
   
  

  
 
   
  

  
 /**
   
  

  
 * 晃动动画
   
  

  
 * @param counts 1秒钟晃动多少下
   
  

  
 * @return
   
  

  
 */
   
  

  
 public static Animation shakeAnimation(int counts){
   
  

  
 Animation translateAnimation = new TranslateAnimation(0, 10, 0, 0);
   
  

  
 translateAnimation.setInterpolator(new CycleInterpolator(counts));
   
  

  
 translateAnimation.setDuration(1000);
   
  

  
 return translateAnimation;
   
  

  
 }
   
  

  
 
   
  

  
 
   
  

  
}
  
 

From for notes (Wiz)

List of attachments

• Ic_clear_black.png
• Ic_clear_black_2.png

EditText of Cleanedittext automatically with X entry box in Android