需要做類似猿題庫答題板效果，網上沒有找到Android的，就自己寫一個，浮層上滑底層UI跟著改變的UI

public class DragLinearLayoutextends LinearLayout {

private int screenWidth;

private int screenHeight;

int lastX, lastY;

// 滑動監聽

public TouchListenertouchListener;

public DragLinearLayout(Context context) {

super(context);

init();

}

public DragLinearLayout(Context context, AttributeSet attrs) {

super(context, attrs);

init();

}

public void setTouchListener(TouchListener touchListener) {

this.touchListener = touchListener;

}

public void init() {

DisplayMetrics dm = getResources().getDisplayMetrics();

screenWidth = dm.widthPixels;

screenHeight = dm.heightPixels;

}

@Override

protected void onLayout(boolean changed, int l, int t, int r, int b) {

// TODO Auto-generated method stub

super.onLayout(changed, l, t, r, b);

}

/**

*

* @param groupViewHeight 父容器高度-拖拽按鈕高度

* @param v

* @param event

*/

public void slideView(int groupViewHeight,View v, MotionEvent event){

int action = event.getAction();

switch (action) {

case MotionEvent.ACTION_DOWN:

lastX = (int) event.getRawX();

lastY = (int) event.getRawY();

break;

case MotionEvent.ACTION_MOVE:

int dx = (int) event.getRawX() -lastX;

int dy = (int) event.getRawY() -lastY;

int left = DragLinearLayout.this.getLeft() + dx;

int top = DragLinearLayout.this.getTop() + dy;

int right = DragLinearLayout.this.getRight() + dx;

int bottom = DragLinearLayout.this.getBottom() + dy;

if (left <0) {

left =0;

right = left + DragLinearLayout.this.getWidth();

}

if (right >screenWidth) {

right =screenWidth;

left = right - DragLinearLayout.this.getWidth();

}

if (top <0) {

top =0;

bottom = top + DragLinearLayout.this.getHeight();

}

if (top > groupViewHeight) {

RelativeLayout.LayoutParams rl = (RelativeLayout.LayoutParams) getLayoutParams();

top = groupViewHeight;

rl.topMargin = top;

setLayoutParams(rl);

callBackMessage(left, top, right, bottom);

return ;

}else {

callBackMessage(left, top, right, bottom);

}

RelativeLayout.LayoutParams rl = (RelativeLayout.LayoutParams) getLayoutParams();

rl.topMargin = top;

setLayoutParams(rl);

lastX = (int) event.getRawX();

lastY = (int) event.getRawY();

break;

}

}

private void callBackMessage(int left,int top,int right,int bottom){

if(touchListener!=null){

touchListener.backTouchState(left, top, right, bottom);

}

}

/**

* Touch監聽接口

*/

public interface TouchListener {public void backTouchState(int left, int top, int right, int bottom);}

}

布局

MainActivity

主要方法

/**

* 按鈕的觸摸事件

*/

btn_drag.setOnTouchListener(new View.OnTouchListener() {

@Override

public boolean onTouch(View view, MotionEvent motionEvent) {

//觸摸按鈕的高度

int height_drag =btn_drag.getHeight();

//父容器的高度

int height =rel.getHeight();

int i = height - height_drag;

//滑動浮層

sbrl.slideView(i,view,motionEvent);

return false;

}

});

/**

* 被覆蓋層隨隨著浮層的滑動改變大小

*/

sbrl.setTouchListener(new DragLinearLayout.TouchListener() {

@Override

public void backTouchState(int left, int top, int right, int bottom) {

int bottom1 =sbrl.getBottom();

int height_drag? =btn_drag.getHeight();

int height =rel.getHeight();

RelativeLayout.LayoutParams rl = (RelativeLayout.LayoutParams)neds.getLayoutParams();

rl.bottomMargin =height-top-height_drag;

neds.setLayoutParams(rl);

Log.e("ice","------left---------" + left +"--top-" + top

+"----right--" + right +"---bottom-" + bottom+

"-------bottom1 = "+bottom1+" i "+i);

}

});

//第一次寫，希望能幫到大家，

總結

以上是生活随笔為你收集整理的android多媒体编程题库,android 仿猿题库答题UI的全部內容，希望文章能夠幫你解決所遇到的問題。

如果覺得生活随笔網站內容還不錯，歡迎將生活随笔推薦給好友。