我正在我的应用中播放视频，但效果很好。 问题是，当我尝试将其全屏显示（在新活动或其他情况下）时，屏幕为空白。
我已按照建议here：
尝试在不启动新活动的情况下执行此操作在我的主要活动中：
butFullScreen.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
if(isFS)
setContentView(R.layout.activity_full_screen_video);
else
setContentView(R.layout.activity_starting_point);
}
});
我也尝试在新活动（我更喜欢）中打开它：
butFullScreen.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
//Start fs intent
Intent myIntent = new Intent(StartingPoint.this, FullScreenVideo.class);
StartingPoint.this.startActivity(myIntent);
}
});
FullScreenVideo：
public class FullScreenVideo extends StartingPoint{
//private VideoView vv;
public FullScreenVideo(){
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
getSupportActionBar().hide();
setContentView(R.layout.activity_full_screen_video);
vv.start();
}
}
和activity_full_screen_video：
<?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"
android:layout_alignParentRight="true"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:layout_alignParentBottom="true"
android:background="#ff000000">
<VideoView
android:id="@+id/vv"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_centerVertical="true"
android:layout_centerHorizontal="true" />
</RelativeLayout>
在我的清单中：
<activity
android:name=".FullScreenVideo"
android:label="@string/app_name"
android:screenOrientation="landscape"
android:configChanges="keyboardHidden|orientation|screenSize" />
它不显示任何错误或崩溃，只是一个空白屏幕。此外，我没有使用媒体控制器，所以没有它的答案将不胜感激：）
编辑::
起点：
public class PlayVid extends ActionBarActivity {
int play = -1;
int k;
int m = 0;
int where;
int pausePressed = 0;
int displaySub = 0;
String curSub = " ";
ArrayList<Stime> timeArray = new ArrayList<Stime>();
Button but;
Button butStop;
Button butSub;
Button butFS;
TextView subs, log;
VideoView vv;
ProgressBar pBar;
int isFS, space;
String srt = "00:00:01,478 --> 00:00:04,020\n" +
"VimeoSrtPlayer Example\n" +
"\n" +
"00:00:05,045 --> 00:00:09,545\n" +
"Support for <i>italic</i> font\n" +
"\n" +
"00:00:09,378 --> 00:00:13,745\n" +
"Support for <b>bold</b> font\n" +
"\n" +
"00:00:14,812 --> 00:00:16,144\n" +
"Multi\n" +
"Line\n" +
"Support ;)\n" +
"\n" +
"00:00:18,211 --> 00:00:21,211\n" +
"Fonts: DejaVu\n" +
"http://dejavu-fonts.org\n" +
"\n" +
"00:00:22,278 --> 00:00:25,678 \n" +
"END OF EXAMPLE FILE";
subParse sp = new subParse(this, srt);
@Override
protected void onCreate(Bundle savedInstanceState) {
requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS);
setProgressBarIndeterminateVisibility(true);
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_starting_point);
pBar = (ProgressBar) findViewById(R.id.progressBar);
subs = (TextView) findViewById(R.id.subtitleBox);
log = (TextView) findViewById(R.id.logBox);
but = (Button) findViewById(R.id.but);
butStop = (Button) findViewById(R.id.butStop);
butSub = (Button) findViewById(R.id.butSub);
butFS = (Button) findViewById(R.id.butFS);
vv = (VideoView) findViewById(R.id.vv);
vv.setVideoPath("@string/video_link");
String[] lines = {" \n", " \n"};
sp.parseSub(srt);
subs.setText("--Click Play to start--\n--Click on SUB to view subtitles--");
final String[] sub2 = log.getText().toString().split(System.getProperty("line.separator"));
final subHelper sob = new subHelper(this, sub2);
final onPauseHelper oph = new onPauseHelper();
final fsHelper fsh = new fsHelper(this);
final playHelper ph = new playHelper();
timeArray.add(new Stime(vv.getDuration(), 0));
but.setOnClickListener(new View.OnClickListener() {
long startTime = 0, trop = 0;
int space = 0;
public void onClick(View v) {
subs.setText(curSub);
fsh.space = space;
if (fsh.isFS == 1) {
//Chill
} else if (play == 0 || play == -1) {
vv.start();
pBar.setVisibility(View.VISIBLE);
if (vv.isPlaying()) {
startTime = Calendar.getInstance().getTimeInMillis();
pBar.setVisibility(View.INVISIBLE);
//Play
if (play == -1) {
sob.setDefaults();
}
oph.putAttr(3, startTime);
but.setText("||");
but.setTextColor(Color.parseColor("#ffaaaaaa"));
if (k < m) {
play = 1;
final Handler handler = new Handler();
final Runnable run = new Runnable() {
@Override
public void run() {
if (k < m && play == 1 && fsh.isFS == 0) {
if (pausePressed == 0) {
oph.putAttr(0, Calendar.getInstance().getTimeInMillis());
} else {
oph.putAttr(0, startTime);
where--;
}
//oph.nextPressed=Calendar.getInstance().getTimeInMillis();
if (space == 0) {
space = 1;
fsh.space = space;
play = sob.subPlay(startTime, 0);
fsh.play = play;
trop = (timeArray.get(k).getTime(1) - timeArray.get(k).getTime(0));
handler.postDelayed(this, Math.abs(trop > 0 ? (trop - oph.done) : 0));
} else if (space == 1) {
space = 0;
fsh.space = space;
play = sob.subPlay(startTime, 1);
fsh.play = play;
trop = timeArray.get(k + 1).getTime(0) - timeArray.get(k).getTime(1);
handler.postDelayed(this, Math.abs(trop > 0 ? (trop - oph.done) : 0));
k++;
}
oph.putAttr(1, Calendar.getInstance().getTimeInMillis());
pausePressed = 0;
sob.pp = 0;
oph.reset();
oph.done = 0;
} else if (k >= m && fsh.isFS == 0) {
final Runnable run = new Runnable() {
@Override
public void run() {
but.setText("↻");
but.setTextColor(Color.parseColor("#ffcdcdcd"));
subs.setText("Play Again?");
handler.removeCallbacks(this);
play = -1;
fsh.play = play;
//ph.saveState(play,0,k,0,curSub,displaySub);
curSub = " ";
}
};
while (vv.isPlaying()) {
}
handler.postDelayed(run, 0);
}
}
};
if (k == 0)
handler.postDelayed(run, (timeArray.get(0).getTime(0)));
else if (k < m) handler.postDelayed(run, 0);
}
}
} else if (play == 1) {
//Pause
vv.pause();
oph.reset();
oph.putAttr(2, Calendar.getInstance().getTimeInMillis());
subs.setText(curSub);
pausePressed = 1;
oph.done = +oph.getProg();
sob.pp++;
but.setText("▶");
but.setTextColor(Color.parseColor("#ffcdcdcd"));
if (k < m) {
if (space == 0) {
space = 1;
fsh.space = space;
} else if (space == 1) {
space = 0;
fsh.space = space;
}
play = sob.subPause(oph.getAttr(2));
fsh.play = play;
}
}
}
});
butStop.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
vv.stopPlayback();
sob.setDefaults();
play = 0;
fsh.play = play;
but.setText("▶");
subs.setText("--Click Play to start--");
curSub = " ";
}
});
butSub.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
if (displaySub == 0) {
displaySub = 1;
subs.setText(curSub);
butSub.setTextColor(Color.parseColor("#ffaaaaaa"));
} else if (displaySub == 1) {
displaySub = 0;
subs.setText(" ");
butSub.setTextColor(Color.parseColor("#ffcdcdcd"));
}
}
});
butFS.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
//Start fs intent
Intent myIntent = new Intent(PlayVid.this, TwoFullScreenVideo.class);
PlayVid.this.startActivity(myIntent);
}
});
}
}
FullScreenVideo：
public class FullScreenVideo extends StartingPoint {
fsHelper fsh;
onPauseHelper oph;
subHelper sob;
playHelper ph;
protected PlayVid context;
TextView subs;
Button but, butStop, butSub, butFS;
public FullScreenVideo(){}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
getSupportActionBar().hide();
setContentView(R.layout.activity_full_screen_video);
subs = (TextView) findViewById(R.id.subtitleBox);
but = (Button) findViewById(R.id.but);
butStop = (Button) findViewById(R.id.butStop);
butSub = (Button) findViewById(R.id.butSub);
butFS = (Button) findViewById(R.id.butFS);
vv = (VideoView) findViewById(R.id.vv);
butFS.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
FullScreenVideo.this.finish();
}
});
}
}