Android動畫工具類AnimeHepler

import android.content.Context;
import android.graphics.ColorMatrix;
import android.graphics.ColorMatrixColorFilter;
import android.graphics.drawable.AnimationDrawable;
import android.view.Gravity;
import android.view.View;
import android.view.ViewGroup;
import android.view.View.OnClickListener;
import android.view.animation.Animation;
import android.view.animation.AnimationUtils;
import android.view.animation.LinearInterpolator;
import android.view.animation.Animation.AnimationListener;
import android.widget.AbsListView;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.ProgressBar;
import android.widget.TextView;
import android.widget.FrameLayout.LayoutParams;

public class AnimeHepler {

private static AnimeHepler util;

public static AnimeHepler getInstance() {

    if (util == null) {
        util = new AnimeHepler();

    }
    return util;

}

private AnimeHepler() {
    super();
}

/**
 * 
 * 給listView加一個刷新動畫的EmptyView listview外層最好用FrameLayout單獨包著
 * 
 * @param context
 * @param lv
 * @param is
 */
public void setAnimationEmptyView(Context context, AbsListView lv,
        ProgressBar bar, String str) {
    ViewGroup parentView = (ViewGroup) lv.getParent();

    removeItem(parentView, lv, -10321);
    removeItem(parentView, lv, -10322);


    LinearLayout wait = getProgressView(context, bar, str);

    parentView.addView(wait);
    lv.setTag(-10322, wait);
    lv.setEmptyView(wait);

}



/**
 * 給listView加一個數據為空時EmptyView listview外層最好用FrameLayout單獨包著
 * 
 * @param context
 * @param lv
 * @param rid
 * @param message
 * @param listener
 */
public void setNoDataEmptyView(Context context, AbsListView lv,
        Integer rid, String message, OnClickListener listener) {
    ViewGroup parentView = (ViewGroup) lv.getParent();

    removeItem(parentView, lv, -10321);
    removeItem(parentView, lv, -10322);

    LinearLayout inflate = getEmptyView(context, rid, message, listener);
    parentView.addView(inflate);
    lv.setEmptyView(inflate);
    lv.setTag(-10321, inflate);

}

/**
 * 刪除上一個EmptyView
 * @param parentView
 * @param lv
 * @param index
 */
private void removeItem(ViewGroup parentView, AbsListView lv, int index) {
    Object tag = lv.getTag(index);
    if (tag != null && tag instanceof View) {
         View s = ( View) tag;
        parentView.removeView(s);
        lv.setTag(index, null);
    }

}

/**
 * 得到一個刷新動畫的EmptyView
 * 
 * @param context
 * @param bar
 * @param str
 * @return
 */
private LinearLayout getProgressView(Context context, ProgressBar bar,
        String str) {

    LinearLayout ll1 = new LinearLayout(context);
    ll1.setOrientation(LinearLayout.VERTICAL);
    LayoutParams params = new LayoutParams(LayoutParams.MATCH_PARENT,
            LayoutParams.MATCH_PARENT);
    ll1.setGravity(Gravity.CENTER);
    ll1.setLayoutParams(params);
    if (bar == null) {
        bar = new ProgressBar(context);
    }

    TextView textView = new TextView(context);

    textView.setText(str);
    textView.setGravity(Gravity.CENTER);

    ll1.addView(bar);
    ll1.addView(textView);
    return ll1;

}

/**
 * 得到一個數據為空時的EmptyView
 * 
 * @param context
 * @param rid
 * @param str
 * @param click
 * @return
 */
private LinearLayout getEmptyView(Context context, Integer rid, String str,
        OnClickListener click) {

    LinearLayout ll2 = new LinearLayout(context);
    ll2.setOrientation(LinearLayout.VERTICAL);
    LayoutParams params = new LayoutParams(LayoutParams.MATCH_PARENT,
            LayoutParams.MATCH_PARENT);
    ll2.setGravity(Gravity.CENTER);
    ll2.setLayoutParams(params);
    if (click != null) {
        ll2.setOnClickListener(click);
    }

    if (rid != null) {

        ImageView imageView = new ImageView(context);
        imageView.setImageResource(rid);
        ll2.addView(imageView);
    }
    TextView textView = new TextView(context);
    textView.setText(str);
    textView.setGravity(Gravity.CENTER);

    ll2.addView(textView);

    return ll2;

}

/**
 * 給view設置動畫效果，并設置動畫結束后回調
 * 
 * @param context
 * @param v
 * @param animationId
 * @param ae
 */
public static void startAnimation(Context context, View v, int animationId,
        final OnAnimEnd ae) {
    startAnimation(context, v, animationId, null, ae);
}

/**
 * 給view設置動畫效果，并設置動畫結束后回調
 * 
 * @param context
 * @param v
 * @param anim
 * @param ae
 */
public static void startAnimation(Context context, View v, Animation anim,
        final OnAnimEnd ae) {
    startAnimation(context, v, 0, anim, ae);
}

/**
 * 給view設置動畫效果，并設置動畫結束后回調
 * 
 * @param context
 * @param v
 * @param animationId
 * @param ae
 */
private static void startAnimation(Context context, View v,
        int animationId, Animation anim, final OnAnimEnd ae) {
    if (anim == null) {
        anim = AnimationUtils.loadAnimation(context, animationId);
    }
    v.startAnimation(anim);

    anim.setAnimationListener(new AnimationListener() {

        @Override
        public void onAnimationStart(Animation arg0) {
            // TODO Auto-generated method stub

        }

        @Override
        public void onAnimationRepeat(Animation arg0) {
            // TODO Auto-generated method stub

        }

        @Override
        public void onAnimationEnd(Animation arg0) {
            if (ae != null) {
                ae.end();
            }

        }
    });

}

public interface OnAnimEnd {

    void end();
}

/**
 * 將ImageView的圖片變為灰色，0灰色，1彩色
 * 
 * @param iv
 * @param f
 */
public void setImageViewGray(ImageView iv, float f) {
    try {
        ColorMatrix matrix = new ColorMatrix();
        matrix.setSaturation(f);
        ColorMatrixColorFilter filter = new ColorMatrixColorFilter(matrix);
        iv.setColorFilter(filter);
    } catch (Exception e) {
        // TODO: handle exception
    }

}

/**
 * ImageView開始播放動畫
 * 
 * @param iv
 */
public void startImageAnimation(ImageView iv) {
    iv.setVisibility(View.VISIBLE);
    AnimationDrawable anim = (AnimationDrawable) iv.getDrawable();
    anim.start();

}

/**
 * 旋轉動畫，旋轉后保留最后的狀態
 * 
 * @param rotate
 * @return
 */
public android.view.animation.RotateAnimation getRotateAnimation(int rotate) {

    android.view.animation.RotateAnimation animation = new android.view.animation.RotateAnimation(
            0, rotate);
    animation.setFillAfter(true);
    animation.setInterpolator(new LinearInterpolator());
    return animation;
}

}</pre>