andriod——Retrofit+Fresco+MVP+Fragment自定义动画3秒跳转_fragment 怎么写3秒后跳转-优快云博客

本文介绍了如何在Android应用中使用Retrofit进行网络请求，Fresco处理图片加载，结合MVP架构模式和Fragment，实现一个3秒钟的启动动画效果，提升用户体验。

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SplashActivity

package com.example.huayuan;

import android.animation.ObjectAnimator;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.os.Handler;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;

public class SplashActivity  extends AppCompatActivity implements View.OnClickListener {

    Handler handler;
    private Button mBtn;
    int time = 3;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.welocom);
        initView();
        handler = new Handler();
    }
    private void initView() {
        mBtn = (Button) findViewById(R.id.btn);
        mBtn.setOnClickListener(this);
    }

    @Override
    public void onClick(View v) {
        switch (v.getId()) {
            case R.id.btn:
                ObjectAnimator animator = ObjectAnimator.ofFloat(v, "translationY", 0f, 300f);
                animator.setDuration(5000);
                animator.start();
                handler.postDelayed(new Runnable() {
                    @Override
                    public void run() {
                        time--;
                        if (time == 1) {
                            Intent intent = new Intent(SplashActivity.this, MainActivity.class);
                            startActivity(intent);
                        }
                        handler.postDelayed(this,3000);
                    }
                }, 200);
                break;
            default:
                break;
        }
    }
}

welocom.xml

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

    <Button
        android:layout_gravity="center_horizontal"
        android:id="@+id/btn"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="跳转"
        android:layout_alignParentTop="true"
        android:layout_centerHorizontal="true" />

</RelativeLayout>

AndroidManifest.xml

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

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity android:name=".SplashActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <activity android:name=".MainActivity"></activity>
    </application>

</manifest>