版权声明：本文为博主原创文章，未经博主允许不得转载。 https://blog.csdn.net/xyzdwf/article/details/54177369
大家都不用AlertDialog了，发现自己的应用还是AlertDialog，就想弄个打开底部/顶部菜单的工具类方法，封装个类可能好些，但是这样方便！
public class AndUtil {
/**
*打开底部/顶部滑动菜单
* @param context 上下文 Activity
* @param contentView 菜单内容
* @param showTp 0:底部弹出 other：顶部
* @return 返回值为VerticalHolderView
*/
public static View openSldBtmMenu(final Context context, View contentView,final int showTp) {
if (context == null || contentView == null) return null;
int[] hdLyloc = new int[2];
final int sHeight=getScreenHeight(context);
Activity act = (Activity) context;
VerticalHolderView hdVw = new VerticalHolderView(context);
hdVw.setVerticalScrollBarEnabled(false);
FrameLayout.LayoutParams reLyPrms1 = new FrameLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT);
hdVw.setLayoutParams(reLyPrms1);
final RelativeLayout reLy = new RelativeLayout(context);
FrameLayout.LayoutParams reLyPrms = new FrameLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT);
reLy.setLayoutParams(reLyPrms);
reLy.addView(contentView);
ViewGroup vg = (ViewGroup) act.getWindow().getDecorView();
hdVw.addView(reLy);
vg.addView(hdVw);
vg.getLocationOnScreen(hdLyloc);
final int reLHt=getViewHeight(reLy);
final int hdoff=hdLyloc[1];
if(showTp==0) {
doBtmMenuAnimation(context, reLy, sHeight, sHeight - hdoff - reLHt, 300, true);
}else{
doBtmMenuAnimation(context, reLy,-reLHt,0, 300, true);
}
//添加滑动事件，如果觉得堆在这里很挤，可以把实现写出去，弄个构造方法
hdVw.setOnTouchListener(new View.OnTouchListener() {
private Context contexta=context;
private RelativeLayout reLya =reLy;
private float ny, ny1, ry;
private int magtop;
private boolean mvf = false;
private FrameLayout.LayoutParams params;
private int reLHta=reLHt;
private int showTpa=showTp;
private int sHeighta=sHeight;
private int hdoffa = hdoff;
@Override
public boolean onTouch(View v, MotionEvent event) { boolean aniFlag=(boolean)reLya.getTag();//标志位,防止动画执行期间重复触发
if(aniFlag) return aniFlag;
ry = (int) event.getRawY();
if (event.getAction() == MotionEvent.ACTION_DOWN) {
mvf = false;
if(showTpa==0){
magtop = sHeighta-hdoffa-reLHta;
}else{
magtop = 0;
}
params = (FrameLayout.LayoutParams) reLya.getLayoutParams();
} else if (event.getAction() == MotionEvent.ACTION_UP||event.getAction() == MotionEvent.ACTION_CANCEL) {
if (mvf) {
boolean b = false;
if (ny > ny1) {
b = true;
}
int endp;
if(showTpa==0) {
endp=b?sHeighta:sHeighta - hdoffa - reLHta;
b=!b;
}else{
endp=b?0:-reLHta;
}
doBtmMenuAnimation(contexta, reLya, magtop,endp, 300, b);
} else {//这里处理类似单击事件
int lnup=magtop+hdoffa;
int lndn=lnup+reLHta;
if(ry>lndn||ry<lnup){
Log.d("AndUtil", "it looks like hdVw clicked! ");
closeSldBtmMenu(contexta, (View)reLya.getParent());
}
}
} else if (event.getAction() == MotionEvent.ACTION_MOVE && Math.abs(ry - ny) >= 5) {//移动大于5px才算move,主要用来区别开click，有拖影就小一点
mvf = true;
magtop += (int) (ry - ny);
if(showTpa==0){
int mxmg=sHeighta-hdoffa-reLHta;
if(magtop<=mxmg){
magtop=mxmg;
}
}else{
if(magtop>=0){
magtop=0;
}
}
if (params != null) {
params.topMargin = magtop;
reLya.setLayoutParams(params);
}
}
ny1 = ny;
ny = ry;
return true;
}
});
return hdVw;
}
/**
*关闭底部/顶部滑动菜单
* @param context 上下文 Activity
* @param genSldView VerticalHolderView
*/
public static void closeSldBtmMenu(Context context, View genSldView) {
if (context == null || genSldView == null) return;
ViewGroup vg=(ViewGroup)genSldView;
View vw=vg.getChildAt(0);
if(vw==null)return;
int sHeight=getScreenHeight(context);
FrameLayout.LayoutParams params = (FrameLayout.LayoutParams) vw.getLayoutParams();
int k=params.topMargin;
if(0==k){
doBtmMenuAnimation(context, vw,k,-getViewHeight(vw), 300, false);
}else{
doBtmMenuAnimation(context, vw,k,sHeight, 300, false);
}
}
/**
*移除底部/顶部滑动菜单View
* @param context 上下文 Activity
* @param genSldView VerticalHolderView
*/
private static void removeBtmMenuVw(Context context, View genSldView){
if (context == null || genSldView == null) return;
Activity act = (Activity) context;
ViewGroup vg = (ViewGroup) act.getWindow().getDecorView();
vg.removeView(genSldView);
}
/**
* 打开关闭底部/顶部滑动菜单动画
* @param context
* @param vw 菜单动态部分
* @param begin 位置开始
* @param end 位置结束
* @param duration 持续时间
* @param b false：动画结束移除View
*/
private static void doBtmMenuAnimation(final Context context,final View vw,final int begin, final int end, int duration, final boolean b) {
final FrameLayout.LayoutParams params = (FrameLayout.LayoutParams) vw.getLayoutParams();
ValueAnimator mAnimator = ValueAnimator.ofInt(begin, end);
mAnimator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
@Override
public void onAnimationUpdate(ValueAnimator animation) {
int aniVal = (int) animation.getAnimatedValue();
params.topMargin = aniVal;
vw.setLayoutParams(params);
}
});
mAnimator.addListener(new Animator.AnimatorListener() {
@Override
public void onAnimationStart(Animator animation) { vw.setTag(true);//标志位
}
@Override
public void onAnimationEnd(Animator animation) {
params.topMargin = end;
vw.setLayoutParams(params); vw.setTag(false);//标志位
if(!b){
removeBtmMenuVw(context,(View)vw.getParent());
}
}
@Override
public void onAnimationCancel(Animator animation) {
}
@Override
public void onAnimationRepeat(Animator animation) {
}
});
mAnimator.setInterpolator(new DecelerateInterpolator());
mAnimator.setDuration(duration);
mAnimator.start();
}
public static int dp2Px(Context context, float dp) {
return (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP,
dp, context.getResources().getDisplayMetrics());
}
public static float px2Dp(Context context, float px) {
final float scale = context.getResources().getDisplayMetrics().density;
return (px / scale);
}
public static int sp2px(Context context, float spVal) {
return (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_SP,
spVal, context.getResources().getDisplayMetrics());
}
public static float px2sp(Context context, float pxVal) {
return (pxVal / context.getResources().getDisplayMetrics().scaledDensity);
}
/**
* 获得屏幕宽度
*
* @param context
* @return
*/
public static int getScreenWidth(Context context) {
WindowManager wm = (WindowManager) context
.getSystemService(Context.WINDOW_SERVICE);
DisplayMetrics outMetrics = new DisplayMetrics();
wm.getDefaultDisplay().getMetrics(outMetrics);
return outMetrics.widthPixels;
}
/**
* 获得屏幕的高度
*
* @param context
* @return
*/
public static int getScreenHeight(Context context) {
WindowManager wm = (WindowManager) context
.getSystemService(Context.WINDOW_SERVICE);
DisplayMetrics outMetrics = new DisplayMetrics();
wm.getDefaultDisplay().getMetrics(outMetrics);
return outMetrics.heightPixels;
}
public static int getViewWidth(View view) {
int width = View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED);
int height = View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED);
view.measure(width, height);
int w = view.getMeasuredWidth();
return w;
}
public static int getViewHeight(View view) {
int width = View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED);
int height = View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED);
view.measure(width, height);
int h = view.getMeasuredHeight();
return h;
}
}
public class VerticalHolderView extends ScrollView {
public VerticalHolderView(Context context) {
super(context);
}
public VerticalHolderView(Context context, AttributeSet attrs) {
super(context, attrs);
}
public VerticalHolderView(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
}
@Override
public boolean onTouchEvent(MotionEvent ev) {
return false;
}
}测试一下：
case R.id.btmCtn_Btn: TextView t = new TextView(MainActivity.this);
t.setText("Android底部/顶部滑动菜单，方便调用的工具类");
t.setBackgroundColor(0xffffffff);
t.setGravity(Gravity.CENTER);
t.setTextSize(TypedValue.COMPLEX_UNIT_SP, 20);
t.setTextColor(0xff000000);
t.setLineSpacing(0,1.2f);
RelativeLayout.LayoutParams laypa = new RelativeLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT);
laypa.height=800;
t.setLayoutParams(laypa);
tmpView=AndUtil.openSldBtmMenu(MainActivity.this,t,1); break;
case R.id.btmCtn_closeBtn: AndUtil.closeSldBtmMenu(MainActivity.this,tmpView);
tmpView=null; break;