1.操作步骤简单，使用方便
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);
//事件监听
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){
//表示没有输入文本内容时显示的图片，个人觉得不需要设置默认图片
setCompoundDrawablesWithIntrinsicBounds(null, null, imgInable, null);
// 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 - 70;
if(rect.contains(eventX, eventY))
setText("");
}
return super.onTouchEvent(event);
}
@Override
protected void finalize() throws Throwable {
super.finalize();
}
/**
* 设置晃动动画
*/
public void setShakeAnimation(){
this.startAnimation( 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;
}
}2.效果图：
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