需求:上次用TextView写了一个从标题栏下面弹出的提示框.android标题栏下面弹出提示框(一) TextView实现,带动画效果, 总在找事情做的产品经理又提出了奇葩的需求。之前在通知栏显示的提示需要在标题栏上面弹出提示框,然后用动画去显示隐藏,并且在大部分Activity上都要显示。
问题1:用上次那个TextView隐藏在布局文件中肯定不行了,不然每个activity都要修改,于是决定用PopupWindow,只要显示在activity的根布局上就行.
问题2:需要把显示PopupWindow的方法抽出来作为一个公共方法,我这边是放到一个工具类里面,传入当前activity.
问题3:从顶部移动多少距离呢?因为我们这个提示框跟标题栏的高度不一样的,于是我就计算提示框图片的高度,作为移动的高度.
效果图如下:
PopupWindowTest.java 程序的入口,调用显示popupwindow的工具类
- /**
- * 显示PopupWindow的activity
- * @author ansen
- * @create time 2015-10-27
- */
- public class PopupWindowTest extends Activity{
- @Override
- protected void onCreate(Bundle savedInstanceState) {
- super.onCreate(savedInstanceState);
- setContentView(R.layout.activity_popupwindow_test);
- findViewById(R.id.btn_show_tip).setOnClickListener(onClickListener);
- }
- private OnClickListener onClickListener=new OnClickListener() {
- @Override
- public void onClick(View v) {
- switch (v.getId()) {
- case R.id.btn_show_tip://显示提示.
- Util util=new Util();
- util.showTips(PopupWindowTest.this);
- break;
- }
- }
- };
- }
Util.java 封装了显示popupwindow的方法,并且增加了动画结束回调接口,动画结束隐藏popupwindow。
- /**
- * 封装了显示Popupwindow的方法.
- * @author ansen
- * @create time 2015-10-27
- */
- public class Util implements AnimationEndCallback{
- private PopupWindow reportVideoPopwindow;
- public void showTips(Activity activity){
- int translateHeight=(int) dip2px(activity,52);
- View parent = ((ViewGroup) activity.findViewById(android.R.id.content)).getChildAt(0);
- View popView = LayoutInflater.from(activity).inflate(R.layout.activity_popupwindow_tips, null);
- int statusBar=getStatusBarHeight(activity);
- reportVideoPopwindow = new PopupWindow(popView,LayoutParams.MATCH_PARENT,translateHeight*2);
- reportVideoPopwindow.showAtLocation(parent,Gravity.TOP, 0, 0);
- TipRelativeLayout tvTips=(TipRelativeLayout) popView.findViewById(R.id.rl_tips);
- tvTips.setTitleHeight(statusBar);//移动状态栏的高度
- tvTips.setAnimationEnd(this);//设置动画结束监听函数
- tvTips.showTips();//显示提示RelativeLayout,移动动画.
- }
- public int getStatusBarHeight(Context context) {
- int result = 0;
- int resourceId = context.getResources().getIdentifier("status_bar_height", "dimen", "android");
- if (resourceId > 0) {
- result = context.getResources().getDimensionPixelSize(resourceId);
- }
- return result;
- }
- private float dip2px(Context context, float dpValue) {
- final float scale = context.getResources().getDisplayMetrics().density;
- float result = dpValue * scale + 0.5f;
- return result;
- }
- @Override
- public void onAnimationEnd() {
- reportVideoPopwindow.dismiss();//动画结束，隐藏popupwindow
- }
- }
TipRelativeLayout.java 这个类也没啥好说的,就在原来的TipTextView基础上增加了一个动画结束回调接口。
- /**
- * 自定义RelativeLayout 显示提示信息,显示时有动画效果(从上面弹出,然后改变透明度慢慢隐藏)
- * @author ansen
- * @create time 2015-10-20
- */
- public class TipRelativeLayout extends RelativeLayout{
- private static final int START_TIME=400;//动画显示时间
- private static final int END_TIME=400;//动画移出时间
- private static final int SHOW_TIME=1000;//动画显示时间
- private AnimationEndCallback animationEnd;
- private int titleHeight=100;//标题栏默认的高度设置成100
- public TipRelativeLayout(Context context) {
- super(context);
- }
- public TipRelativeLayout(Context context, AttributeSet paramAttributeSet) {
- super(context, paramAttributeSet);
- }
- public TipRelativeLayout(Context context, AttributeSet paramAttributeSet,int paramInt) {
- super(context, paramAttributeSet, paramInt);
- }
- public void showTips(){
- setVisibility(View.VISIBLE);
- //向下移动动画
- TranslateAnimation downTranslateAnimation=new TranslateAnimation(0,0,0,titleHeight);
- downTranslateAnimation.setDuration(START_TIME);
- downTranslateAnimation.setFillAfter(true);
- startAnimation(downTranslateAnimation);
- //动画监听
- downTranslateAnimation.setAnimationListener(new AnimationListener() {
- @Override
- public void onAnimationStart(Animation animation) {}
- @Override
- public void onAnimationEnd(Animation animation){//向下移动动画结束
- topTranslateAnimation();
- }
- @Override
- public void onAnimationRepeat(Animation animation) {}
- });
- }
- private void topTranslateAnimation(){
- new Handler().postDelayed(new Runnable() {//延时1秒之后再向上移动
- @Override
- public void run(){
- //向上移动动画
- TranslateAnimation topTranslateAnimation=new TranslateAnimation(0,0,titleHeight,0);
- topTranslateAnimation.setDuration(END_TIME);
- topTranslateAnimation.setFillAfter(true);
- //改变透明度
- AlphaAnimation alphaAnimation=new AlphaAnimation(1,0);
- alphaAnimation.setDuration(END_TIME);
- //两个动画添加到动画集合中
- AnimationSet animationSet=new AnimationSet(true);
- animationSet.addAnimation(topTranslateAnimation);
- animationSet.addAnimation(alphaAnimation);
- startAnimation(animationSet);//开启动画
- animationSet.setAnimationListener(new AnimationListener() {
- @Override
- public void onAnimationStart(Animation animation) {}
- @Override
- public void onAnimationRepeat(Animation animation) {}
- @Override
- public void onAnimationEnd(Animation animation){//动画结束隐藏提示的TextView
- setVisibility(View.GONE);
- if(animationEnd!=null){
- animationEnd.onAnimationEnd();
- }
- }
- });
- }
- },SHOW_TIME);
- }
- /**
- * 设置标题栏高度
- * @param titleHeight
- */
- public void setTitleHeight(int titleHeight) {
- this.titleHeight = titleHeight;
- }
- public void setAnimationEnd(AnimationEndCallback animationEnd) {
- this.animationEnd = animationEnd;
- }
- /**
- * 动画结束监听函数
- * @author apple
- */
- public interface AnimationEndCallback{
- public void onAnimationEnd();
- }
- }
其他的布局文件什么的我就不贴出来了,有需要的自己可以去下载源码.推荐下自己创建的android QQ群:202928390 欢迎大家的加入.
下载第二版 修正了某些手机状态栏的高度不对出现的bug.
