登录创建动画,如Facebook的Andr​​oid [英] Creating login animation like facebook android

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问题描述

我想创建一个登录页面(如Facebook Android应用程序),其中的用户名和密码的EditText 字段被隐藏。一个logo显示其上面的高达动画有一定的距离,并停留在新的位置,然后在编辑字段显示在页面上。

下面是我曾尝试。但这里的标志开始从页面的底部,并行进到页面的顶部。凡为我想要的标志,从页面的中间开始和转移一点至新的位置。

如何可以做到这一点任何想法>?

main.xml中

 < ImageView的
        机器人:ID =@ + ID / imageView1
        机器人:layout_width =WRAP_CONTENT
        机器人:layout_height =WRAP_CONTENT
        机器人:layout_alignParentTop =真
        机器人:layout_centerHorizo​​ntal =真
        机器人:layout_marginTop =116dp
        机器人:SRC =@可绘制/ ic_launcher/>
 

RES /动画/ animationfile.xml

 < XML版本=1.0编码=UTF-8&GT?;

<设置的xmlns:机器人=htt​​p://schemas.android.com/apk/res/android
机器人:插=@机器人:动画/ linear_interpolator>

<翻译
    机器人:时间=5000
    机器人:fromYDelta =50%P
    机器人:toYDelta = -  50%P
   />
     < /集>
 

Main.java

 动画translatebu = AnimationUtils.loadAnimation(这一点,R.anim.animationfile);
       // tv.setText(一些文本视图。);
        img.startAnimation(translatebu);
 


解决方案

1日Facebook的图像上升,所以你必须把它从当前位置转换到顶部

 <翻译
    机器人:fromYDelta =0%P
    机器人:toYDelta = -  30%P
    机器人:时间=1000/>
 

下面安卓fromYDelta 的起始位置和安卓toYDelta 是个即<$ C $结束位置C> 30%安卓病程是时间,即1秒

2日现在附加一个监听器来检查时,动画完成 3现在淡入您的登录框

这里是code

MinActivity.java

 进口android.app.Activity;
进口android.os.Bundle;
进口android.view.View;
进口android.view.View.OnClickListener;
进口android.view.animation.Animation;
进口android.view.animation.Animation.AnimationListener;
进口android.view.animation.AnimationUtils;
进口android.widget.Button;
进口android.widget.ImageView;
进口android.widget.LinearLayout;

公共类MainActivity延伸活动{

    @覆盖
    保护无效的onCreate(包savedInstanceState){
        super.onCreate(savedInstanceState);
        的setContentView(R.layout.activity_main);
        按钮startAnimation =(按钮)findViewById(R.id.button1);
        最后的LinearLayout LoginBox =(的LinearLayout)findViewById(R.id.LoginBox);
        LoginBox.setVisibility(View.GONE);
        startAnimation.setOnClickListener(新OnClickListener(){

            @覆盖
            公共无效的onClick(查看为arg0){
                动画animTranslate = AnimationUtils.loadAnimation(MainActivity.this,R.anim.translate);
                animTranslate.setAnimationListener(新AnimationListener(){

                    @覆盖
                    公共无效onAnimationStart(动画为arg0){}

                    @覆盖
                    公共无效onAnimationRepeat(动画为arg0){}

                    @覆盖
                    公共无效onAnimationEnd(动画为arg0){
                        LoginBox.setVisibility(View.VISIBLE);
                        动画animFade = AnimationUtils.loadAnimation(MainActivity.this,R.anim.fade);
                        LoginBox.startAnimation(animFade);
                    }
                });
                ImageView的imgLogo =(ImageView的)findViewById(R.id.imageView1);
                imgLogo.startAnimation(animTranslate);

            }
        });

    }

}
 

而在动画文件夹中使用这些XML的

fade.xml

 &LT; XML版本=1.0编码=UTF-8&GT?;
&LT;设置的xmlns:机器人=htt​​p://schemas.android.com/apk/res/android
    机器人:fillAfter =真
    机器人:插=@机器人:动画/ accelerate_decelerate_interpolator&GT;
    &LT;阿尔法
        机器人:时间=200
        机器人:fromAlpha =0.0
        机器人:插=@机器人:动画/ accelerate_interpolator
        机器人:toAlpha =1.0/&GT;

&LT; /集&gt;
 

translate.xml

 &LT; XML版本=1.0编码=UTF-8&GT?;
&LT;集
    的xmlns:机器人=htt​​p://schemas.android.com/apk/res/android
    机器人:插=@机器人:动画/ accelerate_decelerate_interpolator
    机器人:fillAfter =真正的&GT;

   &LT;翻译
        机器人:fromYDelta =0%P
        机器人:toYDelta = -  30%P
        机器人:时间=1000/&GT;
&LT; /集&gt;
 

和布局 activity_main.xml

 &LT; RelativeLayout的的xmlns:机器人=htt​​p://schemas.android.com/apk/res/android
    的xmlns:工具=htt​​p://schemas.android.com/tool​​s
    机器人:layout_width =match_parent
    机器人:layout_height =match_parent
    机器人:paddingBottom会=@扪/ activity_vertical_margin
    机器人:以下属性来=@扪/ activity_horizo​​ntal_margin
    机器人:paddingRight =@扪/ activity_horizo​​ntal_margin
    机器人:paddingTop =@扪/ activity_vertical_margin
    工具:上下文=MainActivity。&GT;

    &LT;按钮
        机器人:ID =@ + ID /按钮1
        机器人:layout_width =WRAP_CONTENT
        机器人:layout_height =WRAP_CONTENT
        机器人:layout_alignParentLeft =真
        机器人:layout_alignParentTop =真
        机器人:文本=开始动画/&GT;

    &LT; ImageView的
        机器人:ID =@ + ID / imageView1
        机器人:layout_width =WRAP_CONTENT
        机器人:layout_height =WRAP_CONTENT
        机器人:layout_centerHorizo​​ntal =真
        机器人:layout_centerVertical =真
        机器人:SRC =@可绘制/ ic_launcher/&GT;

    &LT;的LinearLayout
        机器人:ID =@ + ID / LoginBox
        机器人:layout_width =match_parent
        机器人:layout_height =WRAP_CONTENT
        机器人:layout_centerHorizo​​ntal =真
        机器人:layout_centerVertical =真
        机器人:方向=垂直&GT;

        &LT;的EditText
            机器人:ID =@ + ID / editText1
            机器人:layout_width =match_parent
            机器人:layout_height =WRAP_CONTENT
            机器人:提示=邮件ID/&GT;

        &LT;的EditText
            机器人:ID =@ + ID / editText2
            机器人:layout_width =match_parent
            机器人:layout_height =WRAP_CONTENT
            机器人:提示=密码
            机器人:inputType =textPassword/&GT;

        &LT;按钮
            机器人:ID =@ + ID /按钮2
            机器人:layout_width =match_parent
            机器人:layout_height =WRAP_CONTENT
            机器人:文本=登陆/&GT;

    &LT; / LinearLayout中&GT;

&LT; / RelativeLayout的&GT;
 

I want to create a login page (Like facebook android app) where the userid and password EditText fields are hidden. A logo is shown on the page which animates above upto a certain distance and stays at the new position and then the edit fields are shown.

Here is something I have tried. But here the logo starts from bottom of the page and travels to the top of the page. Where as I want the logo to start from middle of the page and shift a little up to its new position.

Any idea on how this can be done>?

main.xml

  <ImageView
        android:id="@+id/imageView1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentTop="true"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="116dp"
        android:src="@drawable/ic_launcher" />

res/anim/animationfile.xml

<?xml version="1.0" encoding="utf-8"?>

<set xmlns:android="http://schemas.android.com/apk/res/android"
android:interpolator="@android:anim/linear_interpolator" >

<translate
    android:duration="5000"
    android:fromYDelta="50%p"
    android:toYDelta="-50%p" 
   />
     </set>

Main.java

  Animation translatebu= AnimationUtils.loadAnimation(this, R.anim.animationfile);
       // tv.setText("Some text view.");
        img.startAnimation(translatebu);


解决方案

1st The facebook image goes up so you have to translate it from current position to top

<translate
    android:fromYDelta="0%p"
    android:toYDelta="-30%p"
    android:duration="1000" />

Here android:fromYDelta is start position and android:toYDelta is end position in percentage i.e -30% and android:duration is in time i.e. 1 second

2nd Now attach a listener to check when animation is done 3rd Now Fade in your login box

here is the code

MinActivity.java

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.animation.Animation;
import android.view.animation.Animation.AnimationListener;
import android.view.animation.AnimationUtils;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.LinearLayout;

public class MainActivity extends Activity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        Button startAnimation =(Button) findViewById(R.id.button1);
        final LinearLayout LoginBox = (LinearLayout) findViewById(R.id.LoginBox);
        LoginBox.setVisibility(View.GONE);
        startAnimation.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View arg0) {
                Animation animTranslate  = AnimationUtils.loadAnimation(MainActivity.this, R.anim.translate);
                animTranslate.setAnimationListener(new AnimationListener() {

                    @Override
                    public void onAnimationStart(Animation arg0) { }

                    @Override
                    public void onAnimationRepeat(Animation arg0) { }

                    @Override
                    public void onAnimationEnd(Animation arg0) {
                        LoginBox.setVisibility(View.VISIBLE);
                        Animation animFade  = AnimationUtils.loadAnimation(MainActivity.this, R.anim.fade);
                        LoginBox.startAnimation(animFade);
                    }
                });
                ImageView imgLogo = (ImageView) findViewById(R.id.imageView1);
                imgLogo.startAnimation(animTranslate);

            }
        });

    }

}

And in the anim folder use these xml's

fade.xml

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
    android:fillAfter="true"
    android:interpolator="@android:anim/accelerate_decelerate_interpolator" >
    <alpha
        android:duration="200"
        android:fromAlpha="0.0"
        android:interpolator="@android:anim/accelerate_interpolator"
        android:toAlpha="1.0" />

</set>

translate.xml

<?xml version="1.0" encoding="utf-8"?>
<set
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:interpolator="@android:anim/accelerate_decelerate_interpolator"
    android:fillAfter="true">

   <translate
        android:fromYDelta="0%p"
        android:toYDelta="-30%p"
        android:duration="1000" />
</set>

And the layout activity_main.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context=".MainActivity" >

    <Button
        android:id="@+id/button1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_alignParentTop="true"
        android:text="Start Animation" />

    <ImageView
        android:id="@+id/imageView1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerHorizontal="true"
        android:layout_centerVertical="true"
        android:src="@drawable/ic_launcher" />

    <LinearLayout
        android:id="@+id/LoginBox"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_centerHorizontal="true"
        android:layout_centerVertical="true"
        android:orientation="vertical" >

        <EditText
            android:id="@+id/editText1"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:hint="Email ID" />

        <EditText
            android:id="@+id/editText2"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:hint="Password"
            android:inputType="textPassword" />

        <Button
            android:id="@+id/button2"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="Login" />

    </LinearLayout>

</RelativeLayout>

这篇关于登录创建动画,如Facebook的Andr​​oid的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!

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