闪屏加倒计时

最新推荐文章于 2024-11-16 15:41:00 发布

原创最新推荐文章于 2024-11-16 15:41:00 发布 · 603 阅读

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CC 4.0 BY-SA版权

本文介绍了一个Android启动页活动的实现方式，包括使用Glide加载图片、通过网络检测进行资源加载判断及启动页倒计时跳转等功能。

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package com.example.administrator.test1;

import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.view.View;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;

import com.bumptech.glide.Glide;

public class TGsplashActivity extends Activity {
    ImageView    banner;
    TextView tv;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_gsplash);
        banner= (ImageView) findViewById(R.id.banner_view);
        tv= (TextView)findViewById(R.id.tv_jump);
        initView();
        initglide();

        banner.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View arg0) {
                Toast.makeText(TGsplashActivity.this, "点击加载的图片", Toast.LENGTH_LONG).show();
            }
        });

    }
    private void initglide(){
        if(isNetworkAvailable(this)){
            Glide.with(TGsplashActivity.this).load(this.getString(R.string.urlinfo)).placeholder(R.mipmap.splashs)
                    .error(R.mipmap.splashs).centerCrop().into(banner);
        }
        else{
            Toast.makeText(this,"请求网络失败",Toast.LENGTH_LONG).show();
            Glide.with(TGsplashActivity.this).load(R.mipmap.splashs).centerCrop().into(banner);
        }

    }

    private void initView() {
        Handler handler = new Handler();
        handler.postDelayed(new Runnable() {
            @Override
            public void run() {
                tv.setVisibility(View.VISIBLE);
                Thread t = new Thread(new JumpThreadT(tv,3,TGsplashActivity.this));
                t.start();
            }
        }, 1000);
    }
        /**
         * 检测当的网络（WLAN、3G/2G）状态
         * @param context Context
         * @return true 表示网络可用
         */
        public  boolean isNetworkAvailable(Context context) {
            ConnectivityManager connectivity = (ConnectivityManager) context
                    .getSystemService(Context.CONNECTIVITY_SERVICE);
            if (connectivity != null) {
                NetworkInfo info = connectivity.getActiveNetworkInfo();
                if (info != null && info.isConnected())
                {
                    // 当前网络是连接的
                    if (info.getState() == NetworkInfo.State.CONNECTED)
                    {
                        // 当前所连接的网络可用
                        return true;
                    }
                }
            }
            return false;
        }


    public class JumpThreadT implements Runnable {
        private TextView textView;
        private int numberTime ;
        private Activity activity;

        public JumpThreadT(TextView textView, int numberTime, Activity activity) {
            this.textView = textView;
            this.numberTime = numberTime;
            this.activity = activity;
        }

        Handler handler =new Handler(){
            @Override
            public void handleMessage(Message msg) {
                super.handleMessage(msg);
                //textView.setText("跳转  "+ String.valueOf(numberTime));
                String tz=activity.getString(R.string.tiaozhuan);
                textView.setText(tz+"   " +String.valueOf(numberTime));
                if (numberTime==0) {
                    jumpActivity();
                }
            }
        };
        private void jumpActivity(){
            Intent intent = new Intent(activity, GuideActivity.class);
            activity.startActivity(intent);
            //activity切换动画
            activity.overridePendingTransition(R.anim.screen_zoom_in, R.anim.screen_zoom_out);

            activity.finish();
        }
        @Override
        public void run() {
            try {
                while (numberTime>0) {
                    Thread.sleep(1000);
                    numberTime--;
                    handler.sendMessage(new Message());
                }

            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
    }



    }

xml文件

<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"
  >

    <ImageView
        android:id="@+id/banner_view"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        >



</ImageView>
    <TextView
        android:id="@+id/tv_jump"
        android:layout_width="70dp"
        android:layout_height="30dp"
        android:layout_alignParentRight="true"
        android:layout_alignParentTop="true"
        android:layout_marginRight="30dp"
        android:layout_marginTop="40dp"
        android:background="@drawable/shape_jump"
        android:gravity="center"
        android:textColor="#fff"
        android:textSize="16sp"
        android:visibility="gone"
        android:text="跳过   3"/>

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