我有一個相當簡單的Fragment,它將一些彩色ImageView添加到RelativeLayout中。有更多的圖像可以放在屏幕上,所以我實現了一些自定義滾動。滾動RelativeLayout-部分內容的白色邊框
但是,當我滾動時,我看到有一個大約90dp的白色邊框重疊部分內容,右邊的屏幕邊緣在我滾動之前。 很明顯,ImageViews仍在創建和繪製正確,但它們被掩蓋了。
我該如何擺脫這個?
我曾嘗試:
- 同時更改了的RelativeLayout和FrameLayout裏到WRAP_CONTENT,FILL_PARENT,MATCH_PARENT,而那些少數的組合。
- 將兩個佈局的填充和頁邊距設置爲0dp。
例子:
片段:
public class MyFrag extends Fragment implements OnTouchListener {
int currentX;
int currentY;
RelativeLayout container;
final int[] colors = {Color.BLACK, Color.RED, Color.BLUE};
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup fragContainer, Bundle savedInstanceState) {
return inflater.inflate(R.layout.fragment_myfrag, null);
}
@Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
container = (RelativeLayout) getView().findViewById(R.id.container);
container.setOnTouchListener(this);
// Temp- Add a bunch of images to test scrolling
for(int i=0; i<1500; i+=100) {
for (int j=0; j<1500; j+=100) {
int color = colors[(i+j)%3];
ImageView image = new ImageView(getActivity());
image.setScaleType(ImageView.ScaleType.CENTER);
image.setBackgroundColor(color);
LayoutParams lp = new RelativeLayout.LayoutParams(100, 100);
lp.setMargins(i, j, 0, 0);
image.setLayoutParams(lp);
container.addView(image);
}
}
}
@Override
public boolean onTouch(View v, MotionEvent event) {
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN: {
currentX = (int) event.getRawX();
currentY = (int) event.getRawY();
break;
}
case MotionEvent.ACTION_MOVE: {
int x2 = (int) event.getRawX();
int y2 = (int) event.getRawY();
container.scrollBy(currentX - x2 , currentY - y2);
currentX = x2;
currentY = y2;
break;
}
case MotionEvent.ACTION_UP: {
break;
}
}
return true;
}
}
XML:
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
tools:context=".FloorPlanFrag">
<RelativeLayout
android:id="@+id/container"
android:layout_width="fill_parent"
android:layout_height="fill_parent" />
</FrameLayout>