第六節ffplay界面開發

作者：[email protected]

部落格：http://www.weibo.com/xdpan

工程位址：http://code.google.com/p/kudou-player/

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Android界面開發，屬于android開發範疇，我這裡沒有太多可以說的，簡單說寫我修改過的地方。還是使用第四節的android工程，主要修改聲音控制和按鍵控制，由于本人Android開發經驗有限，有些可能不太正确，也暫時放在文章中，待日後糾正。

修改

1，去掉Activity的內建關系，修改構造函數（這個類我不想作為界面顯示）

static {

System.loadLibrary("ffmpeg");

System.loadLibrary("SDL");

System.loadLibrary("main");

}

SDLActivity(Context context, Handlerhandler,String filename){

mSingleton = this;

mFilename = filename;

mSurface = new SDLSurface(context);

mHandler = handler;

SurfaceHolder holder =mSurface.getHolder();

}

2，添加notify函數(第五節中的提到的)

public static void notify(intmsg){

Log.v("SDL", "notify:" + msg);

mHandler.sendEmptyMessage(msg);

}

3，增加jni的調用接口（第五節中的接口）

public static native int PlayerInit();

public static native intPlayerPrepare(String url);

public static native int PlayerMain();

public static native int PlayerExit();

public static native int PlayerSeekTo(intmsec);

public static native int PlayerPause();

public static native int PlayerIsPlay();

public static native intPlayerGetDuration();

public static native intPlayergetCurrentPosition();

4，添加PlayerInit()到startApp()中，添加SDLActivity.PlayerPrepare(mFile)和SDLActivity.PlayerMain()到SDLMain中如下：

class SDLMainimplements Runnable {

private String mFile;

SDLMain(String f){

mFile = f;

}

public void run() {

SDLActivity.nativeInit();

SDLActivity.PlayerPrepare(mFile);

SDLActivity.PlayerMain();

//Log.v("SDL", "SDLthread terminated");

}

5，聲音和按鍵控制的修改如下

public boolean onKey(View v, int keyCode, KeyEvent event) {

Log.v("SDL", "keydown: " + keyCode + "aciton:" + event.getAction());

if (keyCode ==KeyEvent.KEYCODE_VOLUME_UP) {

VolumeUp();

return true;

}

else if (keyCode ==KeyEvent.KEYCODE_VOLUME_DOWN) {

VolumeDown();

return true;

}

return false;

}

public void VolumeUp(){

mAudioManager.adjustStreamVolume(AudioManager.STREAM_MUSIC,AudioManager.ADJUST_RAISE, AudioManager.FX_FOCUS_NAVIGATION_UP);

}

public void VolumeDown(){

//mAudioManager.adjustVolume(AudioManager.ADJUST_RAISE, 0);

mAudioManager.adjustStreamVolume(AudioManager.STREAM_MUSIC,AudioManager.ADJUST_LOWER, AudioManager.FX_FOCUS_NAVIGATION_UP);

}

界面編寫就不再解釋，隻給出代碼。

工程目錄如下：

主要播放代碼如下：

package com.kudou.player;

import android.net.Uri;

import android.os.Bundle;

import android.os.Handler;

import android.os.Message;

import android.util.Log;

import android.view.GestureDetector;

import android.view.Gravity;

import android.view.MotionEvent;

import android.view.View;

import android.view.Window;

import android.view.WindowManager;

import android.view.GestureDetector.OnGestureListener;

import android.view.View.OnClickListener;

import android.view.ViewGroup.LayoutParams;

import android.widget.FrameLayout;

import android.widget.ImageView;

import android.widget.SeekBar;

import android.widget.TextView;

import android.widget.SeekBar.OnSeekBarChangeListener;

import android.app.Activity;

import android.content.pm.ActivityInfo;

import org.libsdl.app.SDLActivity;

import org.libsdl.app.SDLSurface;

public classKudouPlayer extends Activityimplements OnGestureListener {

private StringTAG="TestPlayer";

private SDLActivitymSoftPlayer=null;

private ViewmHideContainer;

private SeekBarmSeekBar;

private TextViewcurrentTime,totalTime;

private ViewimgPlay;

private StringfileName="/sdcard/test_1.mp4";

privateinttotalDuration = 0;

private Handlerhandler;

private SeekUpdaterseekUpdater=null;

private GestureDetectorgestureDetector =null;

publicfinalintMSG_LOAD_FINISHED= 10;

publicfinalintMSG_LOAD_UNFINISHED= 11;

publicfinalintMSG_OPEN_ERROR= 12;

publicfinalintMSG_OPEN_OK= 13;

publicfinalintMSG_SEEK_UPDATE= 30;

@Override

protectedvoidonCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

// ==================設定全屏=========================

requestWindowFeature(Window.FEATURE_NO_TITLE);

getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,

WindowManager.LayoutParams.FLAG_FULLSCREEN);

setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);

getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);

// ===================設定亮度========================

WindowManager.LayoutParamslp = getWindow().getAttributes();

lp.screenBrightness = 0.5F;

setContentView(R.layout.player);

FrameLayoutframeContainer = (FrameLayout) findViewById(R.id.framecontainer);

findViews();

gestureDetector = newGestureDetector(this);

handler = newHandler() {

publicvoidhandleMessage(Message msg) {

if (!Thread.currentThread().isInterrupted()){

System.out.println("receivemsg : " + msg.what);

switch (msg.what){

caseMSG_OPEN_OK:

startPlayer();

break;

caseMSG_OPEN_ERROR:

break;

caseMSG_LOAD_FINISHED:

break;

caseMSG_LOAD_UNFINISHED:

break;

caseMSG_SEEK_UPDATE:

Globals.ShowLog("MSG_SEEK_UPDATE");

if (seekUpdater!=null)

seekUpdater.refresh();

break;

}

super.handleMessage(msg);

}

};

UritmpUri = (Uri)this.getIntent().getData();

if (tmpUri != null){

fileName = tmpUri.getPath();

}else {

Bundlebundle =this.getIntent().getExtras();

if (bundle !=null){

fileName = bundle.getString("PATH");

}

mSoftPlayer = newSDLActivity(getApplication(),handler,fileName);

SDLSurfacesurface =mSoftPlayer.getSDLSurface();

FrameLayout.LayoutParamsparams =newFrameLayout.LayoutParams(

LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT);

params.gravity = Gravity.CENTER;

surface.setLayoutParams(params);

frameContainer.addView(surface);

}

publicvoidstartPlayer() {

totalDuration = mSoftPlayer.getDuration();

totalTime.setText(formatTime(totalDuration / 1000));

if (seekUpdater==null) {

seekUpdater =newSeekUpdater();

seekUpdater.startIt();

}

publicvoidshowLog(String s) {

Log.i(TAG, s);

}

public String formatTime(long sec) {

int h = (int)sec / 3600;

int m = (int)(sec % 3600) / 60;

int s = (int)sec % 60;

if (h == 0)

return String.format("%02d:%02d", m, s);

else

return String.format("%d:%02d:%02d", h, m, s);

}

publicvoidfindViews() {

mSeekBar = (SeekBar) findViewById(R.id.progressbar);

currentTime = (TextView) findViewById(R.id.currenttime);

totalTime = (TextView) findViewById(R.id.totaltime);

imgPlay = findViewById(R.id.img_vp_play);

imgPlay.setOnClickListener(imgPlayListener);

mSeekBar.setOnSeekBarChangeListener(mSeekBarChangeListener);

mHideContainer = findViewById(R.id.hidecontainer);

mHideContainer.setOnClickListener(mVisibleListener);

}

OnClickListenerimgPlayListener =new OnClickListener() {

@Override

public voidonClick(View v) {

ImageViewimg = (ImageView) v;

SDLActivitysp =mSoftPlayer;

if (sp !=null){

if (sp.isPlaying()) {

img.setImageResource(R.drawable.vp_play);

sp.stop();

}else {

img.setImageResource(R.drawable.vp_pause);

sp.start();

}

};

OnSeekBarChangeListenermSeekBarChangeListener =new OnSeekBarChangeListener() {

@Override

public voidonStopTrackingTouch(SeekBar seekBar) {

int totalTime, seekTo = 0;

int progress = seekBar.getProgress();

SDLActivitysp =mSoftPlayer;

if (sp !=null){

totalTime= sp.getDuration();

seekTo= totalTime / 1000 * progress;

sp.seekTo(seekTo);

}

System.out.println("Seekedto new progress: " + seekTo);

}

@Override

public voidonProgressChanged(SeekBar seekBar,intprogress,

boolean fromUser) {

//TODO Auto-generated method stub

}

@Override

public voidonStartTrackingTouch(SeekBar seekBar) {

//TODO Auto-generated method stub

}

};

OnClickListenermVisibleListener =new OnClickListener() {

public voidonClick(View v) {

Log.i("Test","onClickmVisibleListener");

if ((mHideContainer.getVisibility()== View.GONE)

||(mHideContainer.getVisibility() == View.INVISIBLE)) {

if (seekUpdater!=null) {

seekUpdater.startIt();

seekUpdater.refresh();

}

mHideContainer.setVisibility(View.VISIBLE);

}else {

mHideContainer.setVisibility(View.INVISIBLE);

if (seekUpdater!=null)

seekUpdater.stopIt();

}

};

protectedvoidonPause() {

super.onPause();

mSoftPlayer.exit();

mSoftPlayer.onPause();

}

protectedvoidonResume() {

super.onResume();

mSoftPlayer.onResume();

}

protectedvoidonDestroy() {

super.onDestroy();

mSoftPlayer.onDestroy();

}

privateclassSeekUpdater {

public voidstartIt() {

handler.sendEmptyMessage(MSG_SEEK_UPDATE);

}

public voidstopIt() {

handler.removeMessages(MSG_SEEK_UPDATE);

}

public voidrefresh() {

SDLActivitysp =mSoftPlayer;

if (currentTime!=null) {

long playedDuration = 0;

if (sp !=null)

playedDuration= sp.getCurrentPosition();

currentTime.setText(formatTime(playedDuration /1000));

if (totalDuration!= 0) {

int progress = (int)((1000 * playedDuration) /totalDuration);

mSeekBar.setProgress(progress);

}

handler.sendEmptyMessageDelayed(MSG_SEEK_UPDATE, 1000);

}

@Override

publicbooleanonTouchEvent(MotionEvent event) {

return gestureDetector.onTouchEvent(event);

}

@Override

publicbooleanonDown(MotionEvent e) {