Android中的BungeeAnimation示例

BungeeAnimation是一个动画库，可帮助吸引用户的注意。众所周知，应用程序由许多活动组成，因此用户在应用程序中的不同活动之间旅行是很常见的。通过在这些交易上添加动画，它一定会吸引用户。活动可以在不使用Bungee的情况下进行切换，但是众所周知Bungee是一个动画库，动画有助于吸引用户的注意力，因此最好学习它。

蹦极提供的活动过渡动画是：

Transition Animations	Functionality
split	Start activity will be split into 2 parts, animate them in the way out and revealing destination activity.
shrink	Destination activity will appear from the center of the screen resulting in shrinking the start activity
card	Destination activity will appear from left and added at the top of start activity
in and out	Start activity will go in the left-center of the screen whereas destination activity will appear from the right side of the screen
swipe left	Destination activity will appear from the right side of the screen  and start activity will disappear to the left side of the screen
swipe right	Destination activity will appear from the left side of the screen  and start activity will disappear to the right side of the screen
slide up	Destination activity will appear from the bottom of the screen  and start activity will go to the top of the screen
slide down	Destination activity will appear from the top of the screen  and start activity will go to the bottom of the screen
slide left	Destination activity will appear from the right of the screen  and start activity will go to the left of the screen
slide right	Destination activity will appear from the left side of the screen  and start activity will go to the right side of the screen
zoom	Start activity will go at the center of the screen i.e. zoom in at the center whereas destination activity will appear from the boundary of the screen
fade	Start activity will disappear slowly resulting in showing the destination activity.
spin	Start activity will disappear and destination activity will appear to the user making the transition in a spin.
diagonal	Destination activity will appear from the top left corner of the app
windmill	Start activity will go at the top right screen and destination activity will appear from the top left side of the screen i.e. both activities will act as a fan of the windmill

方法

• 步骤1：在根build.gradle文件(而不是模块build.gradle文件)中添加支持库。这个库jitpack是一个新颖的软件包存储库。它是为JVM设计的，因此github和bigbucket中存在的任何库都可以直接在应用程序中使用。

  allprojects {           
   repositories {           
          maven { url 'https://jitpack.io' }           
       }          
  }           
  

• 步骤2：在build.gradle文件中添加支持库，并在“依赖项”部分中添加依赖项。

  implementation 'com.github.Binary-Finery:Bungee:2.0'
  

• 步骤3：现在创建一个新的空活动(转到app- > new- > activity-> empty activity )并将其命名为SecondActivity并生成布局文件。将以下代码添加到activity_second.xml文件。在此文件中，将TextView添加到布局中。

• 步骤4：现在将以下代码添加到SecondActivity。 Java文件。在此文件中，将蹦极动画添加到onBackPressed()函数。因此，每当用户单击后退按钮时，都会调用slideLeft()函数。

  SecondActivity。Java

  package org.geeksforgeeks.gfgexcuseme;
    
  import androidx.appcompat.app.AppCompatActivity;
  import android.os.Bundle;
  import spencerstudios.com.bungeelib.Bungee;
    
  public class SecondActivity extends AppCompatActivity {
    
      @Override
      protected void onCreate(Bundle savedInstanceState) {
          super.onCreate(savedInstanceState);
          setContentView(R.layout.activity_second);
      }
    
      // whenever user taps on BackButton
      // slideLeft animaion will be
      // shown to the user
      @Override
      public void onBackPressed() {
          super.onBackPressed();
          Bungee.slideLeft(this);
      }
  }    
  

• 步骤5：在activity_main.xml文件中添加以下代码。在此文件中，在布局中添加各种Button ，当用户点击它时，它们将以不同的动画打开SecondActivity 。
• 步骤6：在MainActivity中添加以下代码。 Java文件。现在，单击任何按钮都将Open()函数，并将执行相应的动画。

  主要活动。Java

  package org.geeksforgeeks.bungee          
    
  import android.content.Intent;
  import android.os.Bundle;
  import android.view.View;
  import androidx.annotation.Nullable;
  import androidx.appcompat.app.AppCompatActivity;
  import spencerstudios.com.bungeelib.Bungee;
    
  public class MainActivity extends AppCompatActivity {
    
      @Override
      protected void onCreate(@Nullable Bundle savedInstanceState) {
          super.onCreate(savedInstanceState);
          setContentView(R.layout.activity_main);
      }
    
      // whenever user tap on any button
      // this function will get invoked 
      // automatically and corresponding 
      // case will be executed. 
      public void Open(View v){
          switch(v.getId()){
              case R.id.zoom_button:
                  startActivity(new Intent(this,
                       SecondActivity.class));
                  Bungee.zoom(this);
                  break;
              case R.id.split_button:
                  startActivity(new Intent(this, 
                       SecondActivity.class));
                  Bungee.split(this);
                  break;
              case R.id.shrink_button:
                  startActivity(new Intent(this, 
                        SecondActivity.class));
                  Bungee.shrink(this);
                  break;
              case R.id.card_button:
                  startActivity(new Intent(this,
                       SecondActivity.class));
                  Bungee.card(this);
                  break;
              case R.id.fade_button:
                  startActivity(new Intent(this,
                       SecondActivity.class));
                  Bungee.fade(this);
                  break;
              case R.id.diagnol_button:
                  startActivity(new Intent(this,
                       SecondActivity.class));
                  Bungee.diagonal(this);
                  break;
          }
    
      }
  }
  

  输出：在模拟器上运行