Android scrollview实现底部继续拖动查看图文详情

Z时代
2024-01-10
分类：IT

本文实例为大家分享了Android实现底部拖动查看图文详情的具体代码，供大家参考，具体内容如下

一、效果图

二、实现步骤

1.xml布局的实现/p>


<ScrollView
 android:id="@+id/mymyscrollview"
 android:layout_width="fill_parent"
 android:layout_height="fill_parent"
 android:layout_above="@+id/rejcdosjflk"
 android:background="#ffffff"
 android:scrollbars="none">
 <LinearLayout
  android:layout_width="match_parent"
  android:layout_height="wrap_content"
  android:layout_marginBottom="60dp"
  android:orientation="vertical">
  </LinearLayout>
 </ScrollView>

2.activity的实现


private ScrollView mScrollView;
mScrollView = (ScrollView) findViewById(R.id.mymyscrollview);
//调用方法
mScrollView.setOnTouchListener(new TouchListenerImpl());
private int scrollY;
private int height;
private int scrollViewMeasuredHeight;
private class TouchListenerImpl implements View.OnTouchListener {
 @Override
 public boolean onTouch(View view, MotionEvent motionEvent) {
  switch (motionEvent.getAction()) {
   case MotionEvent.ACTION_DOWN:
    break;
   case MotionEvent.ACTION_MOVE:
    scrollY = view.getScrollY();
    height = view.getHeight();
    scrollViewMeasuredHeight = mScrollView.getChildAt(0)
      .getMeasuredHeight();
    break;
   case MotionEvent.ACTION_UP:
    System.out.println("scrollY=" + scrollY);
    System.out.println("height=" + height);
    System.out.println("scrollViewMeasuredHeight="
      + scrollViewMeasuredHeight);
    if (scrollY == 0) {
     System.out.println("滑动到了顶端 view.getScrollY()=" + scrollY);
    } else if ((scrollY + height) >= scrollViewMeasuredHeight) {
     Message msg = new Message();
     msg.what = 0;
     mHandlerht.sendMessage(msg);
    } else {
     System.out.println("滑动 height=" + height);
    }
    // 复位
    scrollY = 0;
    height = 0;
    scrollViewMeasuredHeight = 0;
    break;
   default:
    break;
  }
  return false;
 }
}
private Handler mHandlerht = new Handler() {
 public void handleMessage(Message msg) {
  switch (msg.what) {
   case 0:
    // 跳转
    Intent intentcll = new Intent();
    intentcll.setClass(BDDetialActivityCll.this,
      CSProductDetailsCll.class);
    intentcll.putExtra("product", ncspbean);
    startActivity(intentcll);
    break;
   default:
    break;
  }
 }
};