com.geekandroid.sdk.ClearEditText.java Source code

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Here is the source code for com.geekandroid.sdk.ClearEditText.java

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/*******************************************************************************
 *
 * Copyright (c) 2016 Mickael Gizthon . All rights reserved. Email:2013mzhou@gmail.com
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 ******************************************************************************/

package com.geekandroid.sdk;

import android.content.Context;
import android.graphics.drawable.Drawable;
import android.support.v4.content.ContextCompat;
import android.support.v7.widget.AppCompatEditText;
import android.text.Editable;
import android.text.TextWatcher;
import android.util.AttributeSet;
import android.view.MotionEvent;
import android.view.View;
import android.view.animation.Animation;
import android.view.animation.CycleInterpolator;
import android.view.animation.TranslateAnimation;

/**
 * <p>Created by gizthon on 16/9/23. email:2013mzhou@gmail.com</p>
 * <p>
 * des:
 */
public class ClearEditText extends AppCompatEditText implements View.OnFocusChangeListener, TextWatcher {
    /**
     * 
     */
    private Drawable mClearDrawable;
    /**
     * ?
     */
    private boolean hasFoucs;

    public ClearEditText(Context context) {
        this(context, null);
    }

    public ClearEditText(Context context, AttributeSet attrs) {
        //?????XML?
        this(context, attrs, android.R.attr.editTextStyle);
    }

    public ClearEditText(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
        init();
    }

    private void init() {
        //?EditTextDrawableRight,?
        mClearDrawable = getCompoundDrawables()[2];
        if (mClearDrawable == null) {
            //          throw new NullPointerException("You can add drawableRight attribute in XML");
            mClearDrawable = ContextCompat.getDrawable(getContext(), android.R.drawable.ic_menu_close_clear_cancel);
        }

        mClearDrawable.setBounds(0, 0, mClearDrawable.getIntrinsicWidth(), mClearDrawable.getIntrinsicHeight());
        //??
        setClearIconVisible(false);
        //??
        setOnFocusChangeListener(this);
        //????
        addTextChangedListener(this);
    }

    /**
     * ?EditText???
     * ?   EditText - ?? -   
     * EditText - ???
     */
    @Override
    public boolean onTouchEvent(MotionEvent event) {
        if (event.getAction() == MotionEvent.ACTION_UP) {
            if (getCompoundDrawables()[2] != null) {

                boolean touchable = event.getX() > (getWidth() - getTotalPaddingRight())
                        && (event.getX() < ((getWidth() - getPaddingRight())));

                if (touchable) {
                    this.setText("");
                }
            }
        }

        return super.onTouchEvent(event);
    }

    /**
     * ClearEditText?????
     */
    @Override
    public void onFocusChange(View v, boolean hasFocus) {
        this.hasFoucs = hasFocus;
        if (hasFocus) {
            setClearIconVisible(getText().length() > 0);
        } else {
            setClearIconVisible(false);
        }
    }

    /**
     * ??setCompoundDrawablesEditText
     * @param visible
     */
    protected void setClearIconVisible(boolean visible) {
        Drawable right = visible ? mClearDrawable : null;
        setCompoundDrawables(getCompoundDrawables()[0], getCompoundDrawables()[1], right,
                getCompoundDrawables()[3]);
    }

    /**
     * ???
     */
    @Override
    public void onTextChanged(CharSequence s, int start, int count, int after) {
        if (hasFoucs) {
            setClearIconVisible(s.length() > 0);
        }
    }

    @Override
    public void beforeTextChanged(CharSequence s, int start, int count, int after) {

    }

    @Override
    public void afterTextChanged(Editable s) {

    }

    /**
     * 
     */
    public void setShakeAnimation() {
        this.setAnimation(shakeAnimation(5));
    }

    /**
     * 
     * @param counts 1
     * @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;
    }

}