这篇文章将为大家详细讲解有关如何在android项目中里ListView隐藏底部View，文章内容质量较高，因此小编分享给大家做个参考，希望大家阅读完这篇文章后对相关知识有一定的了解。
成都创新互联制作网站网页找三站合一网站制作公司,专注于网页设计,成都网站设计、网站建设,网站设计,企业网站搭建,网站开发,建网站业务,680元做网站,已为成百上千服务,成都创新互联网站建设将一如既往的为我们的客户提供最优质的网站建设、网络营销推广服务!
1。底部BottomView的内容如下，这个XML文件的内容是自定义的，根据各项目的内容需求来定义的，我例子中bottom_view.xml:
2、main.xml如下
3、自定义ListView控件BottomFloatListView
package com.example.BottomFloatListView;
import android.content.Context;
import android.os.Handler;
import android.util.AttributeSet;
import android.util.Log;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewGroup;
import android.view.animation.Animation;
import android.view.animation.OvershootInterpolator;
import android.view.animation.TranslateAnimation;
import android.widget.*;
import android.widget.AbsListView.OnScrollListener;
/**
* 底部View自动隐藏和消失listview(其他ListView可以继承该类，如CtripBottomRefreshListView类等)
**/
public class BottomFloatListView extends ListView implements OnScrollListener {
public View mBottomBar;
private int mCurrentScrollState;
private boolean bIsMoved = false;
private boolean bIsDown = false;
private int mDeltaY;
private float mMotionY;
private int oldFirstVisibleItem = 0;
private Handler mHandler = new Handler();
private static final String TAG = "BottomFloatListView";
public BottomFloatListView(Context context) {
this(context, null);
super.setOnScrollListener(this);
}
public BottomFloatListView(Context context, AttributeSet attrs) {
this(context, attrs, 0);
super.setOnScrollListener(this);
}
public BottomFloatListView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
super.setOnScrollListener(this);
}
@Override
public void setAdapter(ListAdapter adapter) {
super.setAdapter(adapter);
}
@Override
public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {
showBottomViewOnBottom(visibleItemCount, totalItemCount, firstVisibleItem);
}
@Override
public void onScrollStateChanged(AbsListView view, int scrollState) {
hideBottomViewOnScrollStateChanged(view, scrollState);
}
@Override
public boolean onTouchEvent(MotionEvent ev) {
float y = ev.getY();
float x = ev.getX();
Log.d("FloatListView", "onTouchEvent" + "" + x + "" + y);
int action = ev.getAction() & MotionEvent.ACTION_MASK;
switch (action) {
case MotionEvent.ACTION_DOWN:
action_down(y);
break;
case MotionEvent.ACTION_MOVE:
mDeltaY = (int) (y - mMotionY);
bIsMoved = true;
//移动的时候，要移除掉显示bottomView的消息
mHandler.removeCallbacks(showBottomBarRunnable);
//补齐action_down事件，因为有的时候，action_down 事件没有执行
action_down(y);
break;
case MotionEvent.ACTION_UP:
bIsMoved = false;
bIsDown = false;
if (!bIsMoved && !bIsDown) {
// 如果屏幕上什么没做，则过2s之后要显示bottomView
mHandler.postDelayed(showBottomBarRunnable, 2000);
}
if (mDeltaY < 0) { //下滑影藏
hideBottomBar();
} else { //上滑显示
showBottomBar();
}
bIsMoved = false;
break;
}
return super.onTouchEvent(ev);
}
private void action_down(float y){
mMotionY = y;
bIsDown = true;
Log.d(TAG, "action down execed");
mHandler.removeCallbacks(showBottomBarRunnable);
}
/**
* 滑动到顶部时，要隐藏bottomView
* @param view
* @param scrollState
*/
private void hideBottomViewOnScrollStateChanged(AbsListView view, int scrollState) {
mCurrentScrollState = scrollState;
if(view!=null){
if (view.getFirstVisiblePosition() == 0 && scrollState == SCROLL_STATE_IDLE) {
hideBottomBar();
Log.d(TAG, "hide bottom view");
}
}
}
/**
* 显示底部浮动栏
*/
public void showBottomBar() {
if (mBottomBar != null && mBottomBar.getVisibility() == View.GONE) {
mBottomBar.setVisibility(View.INVISIBLE);
Animation translateAnimation = new TranslateAnimation(mBottomBar.getLeft(), mBottomBar.getLeft(),30, 0);
translateAnimation.setDuration(300);
translateAnimation.setInterpolator(new OvershootInterpolator(0.6f));
mBottomBar.startAnimation(translateAnimation);
translateAnimation.setAnimationListener(new Animation.AnimationListener() {
@Override
public void onAnimationStart(Animation animation) {
}
@Override
public void onAnimationRepeat(Animation animation) {
}
@Override
public void onAnimationEnd(Animation animation) {
mBottomBar.setVisibility(View.VISIBLE);
}
});
}
}
/**
* 隐藏浮动底部栏
*/
private void hideBottomBar() {
if (mBottomBar != null && mBottomBar.getVisibility() == View.VISIBLE) {
Animation translateAnimation = new TranslateAnimation(mBottomBar.getLeft(), mBottomBar.getLeft(), 0, 30);
translateAnimation.setDuration(300);
translateAnimation.setInterpolator(new OvershootInterpolator(0.6f));
mBottomBar.startAnimation(translateAnimation);
translateAnimation.setAnimationListener(new Animation.AnimationListener() {
@Override
public void onAnimationStart(Animation animation) {
}
@Override
public void onAnimationRepeat(Animation animation) {
}
@Override
public void onAnimationEnd(Animation animation) {
mBottomBar.setVisibility(View.GONE);
}
});
}
}
/**
* 滑动到底部时直接显示bottomView
* @param visibleItemCount
* @param totalItemCount
* @param firstVisibleItem
*/
private void showBottomViewOnBottom(int visibleItemCount, int totalItemCount, int firstVisibleItem) {
Log.d(TAG, "visible bottem item count:" + "firstVisibleItem:" + firstVisibleItem + "oldFirstVisibleItem:" + oldFirstVisibleItem + mBottomBar);
if(getLastVisiblePosition() == totalItemCount -1 && mCurrentScrollState != SCROLL_STATE_IDLE){
showBottomBar();
}
}
private Runnable showBottomBarRunnable = new Runnable() {
@Override
public void run() {
showBottomBar();
}
};
/**
* 将需要隐藏显示的view传入
*
* @param bottomBar
*/
public void setBottomBar(ViewGroup bottomBar) {
this.mBottomBar = bottomBar;
}
}4、主界面测试的Activity，MainActivity代码如下
public class MainActivity extends Activity {
private BottomFloatListView mBottomFloatListView;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
mBottomFloatListView = (BottomFloatListView)findViewById(R.id.listView) ;
mBottomFloatListView.setAdapter(new ArrayAdapter(this, android.R.layout.simple_expandable_list_item_1,getData()));
ViewGroup bottomView = (ViewGroup)findViewById(R.id.bottombar) ;
mBottomFloatListView.setBottomBar(bottomView);
}
private List getData(){
List data = new ArrayList();
for(int i = 0; i <100; i++) {
data.add("测试数据" + i);
}
return data;
}
}ViewGroup bottomView = (ViewGroup)findViewById(R.id.bottombar) ;
mBottomFloatListView.setBottomBar(bottomView);
将底部的bottomView传入到ListView中，就可以让ListView具有底部View自动隐藏和消失的功能。
关于如何在android项目中里ListView隐藏底部View就分享到这里了，希望以上内容可以对大家有一定的帮助，可以学到更多知识。如果觉得文章不错，可以把它分享出去让更多的人看到。
分享名称：如何在android项目中里ListView隐藏底部View
本文链接：
http://csdahua.cn/article/jdssso.html
