我有两个 View A和B， View A在 View B上方(均为线性布局)。
当我以编程方式将 View A设置为GONE时，它消失了，位于它下面(B)的 View 转到了 View A的位置(如预期的那样)。
但是，当我再次将相同的 View (A)设置为可见时，它显示在 View B上方。我不希望那样。我希望 View B返回到其原始位置(在 View A下方)，这就是我认为会发生的情况(但事实并非如此)。我怎样才能做到这一点？
先感谢您!
编辑-代码
package com.test;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.animation.ScaleAnimation;
import android.view.animation.Transformation;
import android.widget.LinearLayout.LayoutParams;
public class ViewGoneEffectActivity extends Activity implements OnClickListener {
private View viewComEfeito = null;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
findViewById(R.id.outroLinear).setOnClickListener(this);
findViewById(R.id.segundo).setOnClickListener(this);
viewComEfeito = findViewById(R.id.outroLinear);
}
@Override
public void onClick(View view) {
if (view.getId() == R.id.outroLinear) {
view.startAnimation(new MyScaler(1.0f, 1.0f, 1.0f, 0.0f, 500, view,
true));
}else if(view.getId() == R.id.segundo){
viewComEfeito.setVisibility(View.VISIBLE);
}
}
public class MyScaler extends ScaleAnimation {
private LayoutParams mLayoutParams;
private int mMarginBottomFromY, mMarginBottomToY;
private boolean mVanishAfter = false;
public MyScaler(float fromX, float toX, float fromY, float toY,
int duration, View view, boolean vanishAfter) {
super(fromX, toX, fromY, toY);
setDuration(duration);
mVanishAfter = vanishAfter;
mLayoutParams = (LayoutParams) view.getLayoutParams();
//int height = mView.getHeight();
int height = viewComEfeito.getHeight();
mMarginBottomFromY = (int) (height * fromY) + mLayoutParams.bottomMargin - height;
mMarginBottomToY = (int) (0 - ((height * toY) + mLayoutParams.bottomMargin)) - height;
}
@Override
protected void applyTransformation(float interpolatedTime,
Transformation t) {
super.applyTransformation(interpolatedTime, t);
if (interpolatedTime < 1.0f) {
int newMarginBottom = mMarginBottomFromY + (int) ((mMarginBottomToY - mMarginBottomFromY) * interpolatedTime);
mLayoutParams.setMargins(mLayoutParams.leftMargin, mLayoutParams.topMargin, mLayoutParams.rightMargin, newMarginBottom);
viewComEfeito.getParent().requestLayout();
} else if (mVanishAfter) {
viewComEfeito.setVisibility(View.GONE);
}
}
}
}
XML:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<LinearLayout
android:id="@+id/outroLinear"
android:orientation="vertical"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Welcome to the real world" />
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="No" />
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Wow! =P" />
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Free your mind!" />
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="In Tylor we trust" />
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="First rule of fight club is" />
</LinearLayout>
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="@string/hello"
android:id="@+id/segundo" />
</LinearLayout>
最佳答案
您可以尝试将两个 View 都放在RelativeLayout中，并设置它们相对于彼此的位置。