Android – 调用GONE然后VISIBLE使视图显示在错误的位置

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我有两个视图,A和B,视图A在视图B上方(都是线性布局).

当我以编程方式将视图A设置为GONE时,它将消失,并且它正下方的视图(B)将转到视图A的位置(如预期的那样).

但是,当我再次将相同的视图(A)设置为VISIBLE时,它会在视图B上显示.我不希望这样.我希望视图B回到原来的位置(在视图A下面),这是我认为会发生的事情(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,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);
        }
    }
}

}

这里是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>

解决方法

您可以尝试将两个视图放在RelativeLayout中并相对于彼此设置它们的位置.
原文链接:/android/318581.html

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