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android – 从屏幕底部向上滑动布局

作者:互联网

我有一个隐藏在视图中的布局.在按钮上单击,我希望它从底部向上滑动,向上推动整个屏幕内容,非常类似于whatsapp在聊天屏幕中显示表情符号面板的方式.

我见过SlidingDrawer,这对我不起作用.它需要一个图像作为一个手柄,显示在屏幕的中心,我不希望这样.它还会滑动现有的屏幕内容,我正在寻找一种向上移动现有内容的方法.

更新1:

我尝试使用Sanket Kachhela建议的动画.但隐藏的布局从未显示过.这是代码.

布局(activity_main.xml):

<RelativeLayout
    android:id="@+id/main_screen"
    android:layout_width="match_parent"
    android:layout_height="match_parent" >

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/hello_world" 
        android:layout_alignParentTop="true"/>

     <TextView
       android:layout_width="wrap_content"
       android:layout_height="wrap_content"
       android:text="@string/hello_world" 
       android:layout_centerInParent="true"/>

    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Slide up / down"
        android:layout_alignParentBottom="true" 
        android:onClick="slideUpDown"/>

</RelativeLayout>

<RelativeLayout
    android:id="@+id/hidden_panel"
    android:layout_width="match_parent"
    android:layout_height="wrap_content" 
    android:layout_below="@id/main_screen">

    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/app_name" />

</RelativeLayout>

活动(MainActivity.java):

package com.example.slideuplayout;

import android.app.Activity;
import android.os.Bundle;
import android.view.Menu;
import android.view.View;
import android.view.ViewGroup;
import android.view.animation.Animation;
import android.view.animation.AnimationUtils;

public class MainActivity extends Activity {

private ViewGroup hiddenPanel;
private boolean isPanelShown;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    hiddenPanel = (ViewGroup)findViewById(R.id.hidden_panel);
    hiddenPanel.setVisibility(View.INVISIBLE);
    isPanelShown = false;
}

@Override
public boolean onCreateOptionsMenu(Menu menu) {
    // Inflate the menu; this adds items to the action bar if it is present.
    getMenuInflater().inflate(R.menu.main, menu);
    return true;
}

public void slideUpDown(final View view) {
    if(!isPanelShown) {
        // Show the panel
        Animation bottomUp = AnimationUtils.loadAnimation(this,
                R.anim.bottom_up);

        hiddenPanel.startAnimation(bottomUp);
        hiddenPanel.setVisibility(View.VISIBLE);
        isPanelShown = true;
    }
    else {
        // Hide the Panel
        Animation bottomDown = AnimationUtils.loadAnimation(this,
                R.anim.bottom_down);

        hiddenPanel.startAnimation(bottomDown);
        hiddenPanel.setVisibility(View.INVISIBLE);
        isPanelShown = false;
    }
}

}

动画:

bottom_up.xml:

<?xml version="1.0" encoding="utf-8"?>
 <set xmlns:android="http://schemas.android.com/apk/res/android">
    <translate 
       android:fromYDelta="75%p"
       android:toYDelta="0%p"
       android:fillAfter="true"
       android:duration="500" />
</set>

bottom_down.xml:

<?xml version="1.0" encoding="utf-8"?>
 <set xmlns:android="http://schemas.android.com/apk/res/android">
<translate 
    android:fromYDelta="0%p" 
    android:toYDelta="100%p" 
    android:fillAfter="true"
    android:interpolator="@android:anim/linear_interpolator"
    android:duration="500" />
</set>

有什么想法可以做到这一点?

谢谢.

解决方法:

使用这些动画:

bottom_up.xml

<?xml version="1.0" encoding="utf-8"?>
 <set xmlns:android="http://schemas.android.com/apk/res/android">
   <translate android:fromYDelta="75%p" android:toYDelta="0%p" 
    android:fillAfter="true"
 android:duration="500"/>
</set>

bottom_down.xml

 <?xml version="1.0" encoding="utf-8"?>
 <set xmlns:android="http://schemas.android.com/apk/res/android">

<translate android:fromYDelta="0%p" android:toYDelta="100%p" android:fillAfter="true"
            android:interpolator="@android:anim/linear_interpolator"
    android:duration="500" />

</set>

在您的活动中使用此代码隐藏/动画您的视图:

Animation bottomUp = AnimationUtils.loadAnimation(getContext(),
            R.anim.bottom_up);
ViewGroup hiddenPanel = (ViewGroup)findViewById(R.id.hidden_panel);
hiddenPanel.startAnimation(bottomUp);
hiddenPanel.setVisibility(View.VISIBLE);

标签:uislider,android,layout
来源: https://codeday.me/bug/20190917/1808992.html