【发布时间】：2019-08-05 05:24:58
【问题描述】：
我在活动中有一个 ImageView，当您单击图像的一部分时，片段会更新并可见。这可以根据需要工作，但是片段出现在 imageView 后面。所以我看不到它。我希望片段出现在视图的底部三分之一处。谁能说明为什么会这样？
.xml 文件
<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
xmlns:design="http://schemas.android.com/apk/res-auto">
<ImageView
android:id="@+id/limerickMapImageView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:src="@drawable/limerickmap" />
<android.support.design.widget.FloatingActionButton
android:id="@+id/centreButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="end|bottom"
android:layout_margin="16dp"
android:src="@drawable/centre"
app:backgroundTint="@color/linkBlue" />
<LinearLayout
android:id="@+id/infoFragmentLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:visibility="invisible"
>
<fragment
android:id="@+id/infoFragment"
class="com.codingwithmitch.googlemaps2018.ui.LocationInfoFragment"
android:layout_width="fill_parent"
android:layout_height="300dp"
android:layout_gravity="bottom"
app:layout_anchorGravity="center_vertical" />
</LinearLayout>
这是我使片段可见的活动中的 onCreate 的 sn-p
photoview2.setOnTouchListener(new View.OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
touchX = (int) event.getX();
touchY = (int) event.getY();
LocationInfoFragment fragobject2 = (LocationInfoFragment) getSupportFragmentManager().findFragmentById(R.id.infoFragment) ;
LinearLayout infoFragementLayout = (LinearLayout) findViewById(R.id.infoFragmentLayout);
//LinearLayout infoFragementLayout = (LinearLayout) findViewById(R.id.infoFragmentLayout);
infoFragementLayout.setVisibility(View.INVISIBLE);
for (InfoLocationInformation locationArrayVariable : mInfoLocationInformations) {
if(touchX > locationArrayVariable.getXy().get(0) & touchX < locationArrayVariable.getXy().get(2) & touchY > locationArrayVariable.getXy().get(1) & touchY < locationArrayVariable.getXy().get(3)){
//Log.e(TAG, "Location information for " + locationArrayVariable.getName() );
if(locationArrayVariable.getType()<1 && infoButton.getBackgroundTintList().getDefaultColor()==-49023+100){
bundleString = locationArrayVariable.getText();
fragobject2.updateFragment(bundleString);
infoFragementLayout.setVisibility(View.VISIBLE);
}else if(locationArrayVariable.getType()>0 && locationArrayVariable.getType()<3 && (barButton.getBackgroundTintList().getDefaultColor()==-524991+100 || restaurentButton.getBackgroundTintList().getDefaultColor()==-10879633+100)){
bundleString =locationArrayVariable.getText();
fragobject2.updateFragment(bundleString);
infoFragementLayout.setVisibility(View.VISIBLE);
}else if(locationArrayVariable.getType()>2 && locationArrayVariable.getType()<5 && (cafeButton.getBackgroundTintList().getDefaultColor()==-31949+100 || restaurentButton.getBackgroundTintList().getDefaultColor()==-10879633+100)){
fragobject2.updateFragment(bundleString);
infoFragementLayout.setVisibility(View.VISIBLE);
}else if(locationArrayVariable.getType()>4 && cafeButton.getBackgroundTintList().getDefaultColor()==-31949+100){
fragobject2.updateFragment(bundleString);
infoFragementLayout.setVisibility(View.VISIBLE);
}
}
}
Log.e(TAG, "touch coordinates X" + touchX +" Y "+ touchY );
ImageView view = (ImageView) v;
view.bringToFront();
viewTransformation(view, event);
return true;
}
});
我有这个运动事件功能，它允许我在活动中放大和缩小并在图像视图中移动。
private void viewTransformation(View view, MotionEvent event) {
switch (event.getAction() & MotionEvent.ACTION_MASK) {
case MotionEvent.ACTION_DOWN:
centreCheck =false;
xCoOrdinate = view.getX() - event.getRawX();
yCoOrdinate = view.getY() - event.getRawY();
start.set(event.getX(), event.getY());
isOutSide = false;
mode = DRAG;
lastEvent = null;
break;
case MotionEvent.ACTION_POINTER_DOWN:
centreCheck =false;
oldDist = spacing(event);
if (oldDist > 10f) {
midPoint(mid, event);
mode = ZOOM;
}
lastEvent = new float[4];
lastEvent[0] = event.getX(0);
lastEvent[1] = event.getX(1);
lastEvent[2] = event.getY(0);
lastEvent[3] = event.getY(1);
d = rotation(event);
break;
case MotionEvent.ACTION_UP:
centreCheck =false;
isZoomAndRotate = false;
if (mode == DRAG) {
float x = event.getX();
float y = event.getY();
}
case MotionEvent.ACTION_OUTSIDE:
centreCheck =false;
isOutSide = true;
mode = NONE;
lastEvent = null;
case MotionEvent.ACTION_POINTER_UP:
centreCheck =false;
mode = NONE;
lastEvent = null;
break;
case MotionEvent.ACTION_MOVE:
centreCheck =false;
if (!isOutSide) {
if (mode == DRAG) {
isZoomAndRotate = false;
view.animate().x(event.getRawX() + xCoOrdinate).y(event.getRawY() + yCoOrdinate).setDuration(0).start();
}
if (mode == ZOOM && event.getPointerCount() == 2) {
float newDist1 = spacing(event);
if (newDist1 > 10f) {
float scale = newDist1 / oldDist * view.getScaleX();
view.setScaleX(scale);
view.setScaleY(scale);
}
if (lastEvent != null) {
newRot = rotation(event);
view.setRotation((float) (view.getRotation() + (newRot - d)));
}
}
}
break;
}
}
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标签： java android xml android-fragments