自定义EditText-带清除所有输入按钮的EditText

最新推荐文章于 2020-07-14 14:14:42 发布

原创最新推荐文章于 2020-07-14 14:14:42 发布 · 350 阅读

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#控件

本文介绍了一种自定义的EditText组件，该组件内置清除按钮，可在输入文字后方便地清空输入框内容。通过简单的代码实现，适用于Android应用开发。

最近在项目中用到了带清除按钮的EditText 给大家分享一个自定义的控件可以直接拿来用废话不多说了直接上代码上图

/**
 * 自定义EditText-带清除按钮
 */
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.mipmap.delete_gray);
        imgAble = mContext.getResources().getDrawable(R.mipmap.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();
    }


    private void setDrawable() {
        if (length() < 1)
            setCompoundDrawablesWithIntrinsicBounds(null, null, null, null);

        else
            setCompoundDrawablesWithIntrinsicBounds(null, null, imgInable, null);
    }


    @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();
    }

}