Flash基础入门之flash数据交互-职坐标

Flash基础入门之flash数据交互

小标 2018-08-24 来源：阅读 1035 评论 0

摘要：本文主要向大家介绍了Flash基础入门之flash数据交互，通过具体的内容向大家展现，希望对大家学习Flash基础入门有所帮助。

本文主要向大家介绍了Flash基础入门之flash数据交互，通过具体的内容向大家展现，希望对大家学习Flash基础入门有所帮助。

[java] view plain copy
   //类中类：定义js中调用的Android类
lass RunJavaScript {
public void runJs2Activity(String str) {
    strFromJs = str;
    mScriptHandler.removeCallbacks(mPlayerRunnable);
    mScriptHandler.postDelayed(mPlayerRunnable, 300);
}
Android中是Vebview加载html文件的，其中交互类的别名是这样定义的
[java] view plain copy
//给网页文件添加Android与JS交互函数的定义
mWebView.addJavascriptInterface(new RunJavaScript(), "playerJs");
下面是Android完整代码

[java] view plain copy
package com.ideal.swfplayer;
/************************
*用来加载flash.html文件*
************************/
import java.io.File;
import java.util.Timer;
import java.util.TimerTask;
import sunvision.database.DBOperation;
import sunvision.dialog.MatchDialog;
import sunvision.dialog.TipDialog;
import sunvision.dialog.VersionDialog;
import sunvision.file.FileOperation;
import sunvision.tools.FlashPath;
import sunvision.tools.IdealSystemProperties;
import android.annotation.SuppressLint;
import android.app.Activity;
import android.content.Intent;
import android.graphics.Bitmap;
import android.os.Build;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.os.SystemClock;
import android.util.Log;
import android.view.Gravity;
import android.view.KeyEvent;
import android.view.LayoutInflater;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewGroup;
import android.view.WindowManager;
import android.webkit.WebChromeClient;
import android.webkit.WebSettings;
import android.webkit.WebSettings.PluginState;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.FrameLayout;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;

public class MainFlashActivity extends Activity {
    private WebView mWebView = null;
    private FrameLayout mFrameLayout = null;
    private ImageView mImageView = null;
    private Timer mTimer = null;
    private Timer mTimer2 = null;
    private WebSettings settings;
    private String strFromJs = "";
    private String TAG = "SwfPlayer";
    private int mLoadingIndex = 0;
    private int mWebViewLoadTimes = 0;
    private int versionloadtime=0;
    private MatchDialog mDialogManager;
    private Handler mHandler = null;
    private FileOperation mFileUnit;
    private boolean isversionup=true;
    Handler mScriptHandler = new Handler() {};
    //加载驱动
    public native void native_initPlayer( ) throws Exception;
    public native void native_prepare() throws Exception;
    public native void native_start();
    public native void native_finish();

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_flash);
        //初始化UI界面
        InitUI();
        //加载主界面
        loadSwf(FlashPath.MainPath);
        //等待消息传过来更新界面
        //mHandler.post(task);  //启动定时器1秒刷新一次
        mHandler = new Handler() {
            @SuppressLint("Recycle")
            public void handleMessage(Message msg) {
                Log.i(TAG, "PlayerActivity-mLoadingIndex==" + mLoadingIndex);
                switch (msg.arg1) {
                case 0:
                    mImageView.setImageResource(R.drawable.flashloading);
                    break;
                case 1:
                    mTimer.cancel();
                    mImageView.setVisibility(View.GONE);
                    mImageView.destroyDrawingCache();
                    mLoadingIndex = 0;
                    break;
                case 6:
                    mWebView.dispatchTouchEvent(MotionEvent.obtain(SystemClock.uptimeMillis(),SystemClock.uptimeMillis(),MotionEvent.ACTION_DOWN, mWebView.getLeft() + 5,mWebView.getTop() + 5, 0));
                    mWebView.dispatchTouchEvent(MotionEvent.obtain(SystemClock.uptimeMillis(),SystemClock.uptimeMillis(), MotionEvent.ACTION_UP,mWebView.getLeft() + 5, mWebView.getTop() + 5, 0));
                    break;
                default:
                    break;
                }
                super.handleMessage(msg);
            }
        };

    }
    //UI界面初始化函数
    private void InitUI() {
        mFileUnit = new FileOperation(getApplicationContext());
        mFileUnit.createFlashPlayerTrust();
        mFrameLayout = (FrameLayout) findViewById(R.id.player_frameLayout);
        mImageView = (ImageView) findViewById(R.id.swf_loading_img);
        mWebView = (WebView) findViewById(R.id.webView_show);
    }

     //加载Flash动画
        @SuppressLint({ "SetJavaScriptEnabled", "Recycle" })
        public void loadSwf(String swfPath) {
            //获得配置函数
            settings = mWebView.getSettings();
            //设置允许与js交互
            settings.setJavaScriptEnabled(true);
            //设置允许文件操作
            settings.setAllowFileAccess(true);
            //设置允许使用Adobe Flash播放视频
            settings.setPluginState(PluginState.ON);
            //设置加载方式是替换加载，而不是新页面加载
            settings.setLoadWithOverviewMode(true);
            //设置编码方式
            settings.setDefaultTextEncodingName("GBK");
            //设置透明背景
            mWebView.setBackgroundColor(0);
            //重写Flash加载辅助函数
            mWebView.setWebChromeClient(new WebChromeClient() {
                public void onShowCustomView(View view, int requestedOrientation,
                        WebChromeClient.CustomViewCallback callback) {
                    super.onShowCustomView(view, callback);
                    //Android SDK版本
                    if (Build.VERSION.SDK_INT >= 14) {
                        if (view instanceof FrameLayout) {
                            mFrameLayout.addView(view,new FrameLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT,ViewGroup.LayoutParams.MATCH_PARENT,Gravity.CENTER));
                            mFrameLayout.setVisibility(View.VISIBLE);
                        }
                    }
                }
                @Override
                public void onHideCustomView() {
                    super.onHideCustomView();
                }
            });
            //重写Flash加载主要函数
            mWebView.setWebViewClient(new WebViewClient() {
                @Override
                public boolean shouldOverrideUrlLoading(WebView view, String url) {
                    view.loadUrl(url);
                    return true;
                }
                //Flash启东时调用
                @Override
                public void onPageStarted(WebView view, String url, Bitmap favicon) {
                    super.onPageStarted(view, url, favicon);
                    mWebViewLoadTimes++;

                }
                //Flash加载完成之后调用
                @Override
                public void onPageFinished(WebView view, String url) {
                    super.onPageFinished(view, url);
                    //Flash加载之前会有一段时间是白屏，为了掩盖，让五张图片隔时刷新
                    if (mWebViewLoadTimes == 1) {
                        mTimer = new Timer();
                        mTimer.schedule(new TimerTask() {
                            @Override
                            public void run() {
                                Message msg = new Message();
                                msg.what = 0;
                                msg.arg1 = mLoadingIndex;
                                mHandler.sendMessage(msg);
                                mLoadingIndex++;
                            }
                        }, 0, 2000);
                        //flash偶尔会失去焦点，让flash加载完成之后每隔2秒点击一次界面获得焦点
                        mTimer2 = new Timer();
                        mTimer2.schedule(new TimerTask() {
                            @Override
                            public void run() {
                                Message msg = new Message();
                                msg.what = 0;
                                msg.arg1 = 6;
                                mHandler.sendMessage(msg);
                            }
                        }, 0, 2000);
                    } else if (mWebViewLoadTimes >= 2) {
                        mWebViewLoadTimes = 0;
                        String path = FlashPath.TIP_NO_FILE;
                        Intent intent = new Intent(MainFlashActivity.this,NoFileFlashActivity.class);
                        intent.putExtra("swfPath", path);
                        startActivity(intent);
                        MainFlashActivity.this.finish();
                    }
                }
            });
            //给网页文件添加Android与JS交互函数的定义
            mWebView.addJavascriptInterface(new RunJavaScript(), "playerJs");
            //设置网页能够获得焦点
            mWebView.requestFocusFromTouch();
            mWebView.requestFocus();
            mWebView.setFocusable(true);
            //设置完毕之后加载Flash
            mWebView.loadUrl(swfPath);
        }
        //类中类：定义js中调用的Android类
    class RunJavaScript {
        public void runJs2Activity(String str) {
            strFromJs = str;
            mScriptHandler.removeCallbacks(mPlayerRunnable);
            mScriptHandler.postDelayed(mPlayerRunnable, 300);
        }
    }
     //类中接口：当js调用RunJavaScript时，新开辟线程处理消息，这里是接口
    Runnable mPlayerRunnable = new Runnable() {
        @Override
        public void run() {
            //文件操作行为
            if (strFromJs.equals("file1_open")||strFromJs.equals("file2_open")||strFromJs.equals("file3_open")||strFromJs.equals("file4_open")||strFromJs.equals("file5_open")||strFromJs.equals("file6_open") ) {
                File folder = new File("/mnt/external_sd/");
                //TF卡存在
                if(folder.length()>0){
                  Intent intent = new Intent(MainFlashActivity.this,FileListActivity.class);
                  intent.putExtra("filename", strFromJs);
                  startActivity(intent);
                  //TF卡不在
                }else{
                    TipDialog mTipDialog = new TipDialog(MainFlashActivity.this, R.style.IdealDialog,R.drawable.no_tf_card,3);
                    //设置背景透明度
                    WindowManager.LayoutParams lp=mTipDialog.getWindow().getAttributes();
                    lp.dimAmount=0.7f;
                    mTipDialog.getWindow().setAttributes(lp);
                    mTipDialog.getWindow().addFlags(WindowManager.LayoutParams.FLAG_DIM_BEHIND);
                    mTipDialog.show();
                }
            }
        }
    };

    //加载Antivity是调用
    @SuppressLint("Recycle") @Override
    protected void onResume() {
        super.onResume();
        //flash在回到该Activity是能够继续播放
        try {
            mWebView.getClass().getMethod("onResume").invoke(mWebView, (Object[]) null);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    //Activity停止时调用
    @Override
    protected void onPause() {
        super.onPause();
        //允许flash暂停播放
        try {
            mWebView.getClass().getMethod("onPause").invoke(mWebView, (Object[]) null);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    //该Activity销毁时调用
    @Override
    protected void onDestroy() {
        super.onDestroy();
        mWebView.destroyDrawingCache();
        mWebView.destroy();
        try {
            mHandler.removeMessages(0);
            mTimer.cancel();
        } catch (Exception e) {
        }
    }

}
Android加载flash时有一些要注意的问题：Webview加载flash一开始会出现白屏，可以通过刷图的形式掩盖；刚加载完flash，它还无法获得Android用户的焦点事件，必须在代码里面模拟点击屏幕，才可以获得焦点；在运行flash的过程中可能会出现焦点丢失的情况，我的方案是每隔几秒点击屏幕一次；Android加载flash需要flash插件，必须确保插件装好了，但是。即使插件装好了也不能通信，必须要把要加载的flash的路径写到flash插件安装目录下的安全路径文件中，这点非常重要，如读者遇到该问题，需要帮助的话可在线留言~