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