我想通过相机录制视频，在我们开始录制相机预览之前应该在那里我们停止录制相机预览应该在那里
我写这段代码它只是在我们开始录制之前预览相机。当我停止录制相机不是预览。帮助我
MainActivity
public class MainActivity extends Activity implements View.OnClickListener, SurfaceHolder.Callback {
MediaRecorder recorder;
SurfaceHolder holder;
Button st;
TextView live, stopWatch;
boolean recording = false;
boolean loop = false;
EditText barcode;
TextView head;
ArrayList<Subtitle> Sub;
long MillisecondTime, StartTime, TimeBuff, UpdateTime = 0L;
int Seconds, Minutes, MilliSeconds;
Handler handler;
AVLoadingIndicatorView loading;
LinearLayout videoSurface;
LinearLayout cameraSurface;
Timer t;
SimpleDateFormat d2;
SimpleDateFormat d1;
boolean duration = true;
boolean durationVal = false;
int p = 0;
private CameraPreview mCameraView = null;
FrameLayout camera_view;
SurfaceView cameraView;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN);
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
recorder = new MediaRecorder();
File myDirectory = new File(Environment.getExternalStorageDirectory(), "C3dssImageProcessing");
if (!myDirectory.exists()) {
myDirectory.mkdirs();
}
setContentView(R.layout.activity_main2);
cameraView = (SurfaceView) findViewById(CameraView);
st = (Button) findViewById(R.id.actionbtn);
live = (TextView) findViewById(R.id.liveStatus);
barcode = (EditText) findViewById(R.id.barcode);
stopWatch = (TextView) findViewById(R.id.stopwatch);
loading = (AVLoadingIndicatorView) findViewById(R.id.load);
head = (TextView) findViewById(R.id.header1);
initiateCamera();
barcode.setEnabled(false);
getWindow().setSoftInputMode(
WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_HIDDEN
);
live.setVisibility(View.INVISIBLE);
holder = cameraView.getHolder();
holder.addCallback(this);
holder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
st.setClickable(true);
st.setOnClickListener(this);
barcode.addTextChangedListener(new TextWatcher() {
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
File myDirectory = new File(Environment.getExternalStorageDirectory(), "beforeTextChanged");
if (!myDirectory.exists()) {
myDirectory.mkdirs();
}
}
@Override
public void onTextChanged(CharSequence ss, int start, int before, int count) {
File myDirectory = new File(Environment.getExternalStorageDirectory(), "onTextChanged");
if (!myDirectory.exists()) {
myDirectory.mkdirs();
}
// Toast.makeText(getApplicationContext(), "on text changed ", Toast.LENGTH_LONG).show();
Subtitle subtitle = new Subtitle();
subtitle.setBarcode(barcode.getText().toString());
if (barcode.getText().length() > 12 && !(Sub == null)) {
barcode.setEnabled(false);
// Toast.makeText(getApplicationContext(), "barcode fired ", Toast.LENGTH_LONG).show();
if (stopWatch.getText().length() <= 5) {
subtitle.setStartTime("00:"+stopWatch.getText().toString());
String str = stopWatch.getText().toString();
String substring = str.length() > 2 ? str.substring(str.length() - 2) : str;
int second = Integer.parseInt(substring);
second += 5;
if (second == 60) {
String s = str.length() < 2 ? str : str.substring(0, 2);
int minitute = Integer.parseInt(s);
if (minitute == 59) {
minitute = 00;
second = 00;
subtitle.setEndTime("01:" + minitute + ":" + second);
} else {
minitute += 1;
second = 00;
subtitle.setEndTime("00:" + minitute + ":" + second);
}
}
if (second == 61) {
String s = str.length() < 2 ? str : str.substring(0, 2);
int minitute = Integer.parseInt(s);
if (minitute == 59) {
minitute = 00;
second = 02;
subtitle.setEndTime("01:" + minitute + ":" + second);
} else {
minitute += 1;
second = 02;
subtitle.setEndTime("00:" + minitute + ":" + second);
}
}
if (second == 62) {
String s = str.length() < 2 ? str : str.substring(0, 2);
int minitute = Integer.parseInt(s);
if (minitute == 59) {
minitute = 00;
second = 03;
subtitle.setEndTime("01:" + minitute + ":" + second);
} else {
minitute += 1;
second = 03;
subtitle.setEndTime("00:" + minitute + ":" + second);
}
}
if (second == 62) {
String s = str.length() < 2 ? str : str.substring(0, 2);
int minitute = Integer.parseInt(s);
if (minitute == 59) {
minitute = 00;
second = 04;
subtitle.setEndTime("01:" + minitute + ":" + second);
} else {
minitute += 1;
second = 04;
subtitle.setEndTime("00:" + minitute + ":" + second);
}
}
if (second == 63) {
String s = str.length() < 2 ? str : str.substring(0, 2);
int minitute = Integer.parseInt(s);
if (minitute == 59) {
minitute = 00;
second = 05;
subtitle.setEndTime("01:" + minitute + ":" + second);
} else {
minitute += 1;
second = 05;
subtitle.setEndTime("00:" + minitute + ":" + second);
}
}
if (second == 64) {
String s = str.length() < 2 ? str : str.substring(0, 2);
int minitute = Integer.parseInt(s);
if (minitute == 59) {
minitute = 00;
second = 06;
subtitle.setEndTime("01:" + minitute + ":" + second);
} else {
minitute += 1;
second = 06;
subtitle.setEndTime("00:" + minitute + ":" + second);
}
}
if (second < 60) {
String s = str.length() < 2 ? str : str.substring(0, 2);
int minitute = Integer.parseInt(s);
subtitle.setEndTime("00:" + minitute + ":" + second);
}
} else {
subtitle.setStartTime(stopWatch.getText().toString());
String str = stopWatch.getText().toString();
String substring = str.length() > 2 ? str.substring(str.length() - 2) : str;
int second = Integer.parseInt(substring);
second += 5;
if (second == 60) {
String s = str.length() < 2 ? str : str.substring(0, 2);
String s1 = str.substring(4, 5);
int hour = Integer.parseInt(s);
int minitute = Integer.parseInt(s1);
if (minitute == 59) {
minitute = 00;
second = 00;
hour += 1;
subtitle.setEndTime(hour + minitute + ":" + second);
} else {
minitute += 1;
second = 00;
subtitle.setEndTime(hour + minitute + ":" + second);
}
}
if (second == 61) {
String s = str.length() < 2 ? str : str.substring(0, 2);
String s1 = str.substring(4, 5);
int hour = Integer.parseInt(s);
int minitute = Integer.parseInt(s);
if (minitute == 59) {
minitute = 00;
second = 02;
hour += 1;
subtitle.setEndTime(hour + minitute + ":" + second);
} else {
minitute += 1;
second = 02;
subtitle.setEndTime(hour + minitute + ":" + second);
}
}
if (second == 62) {
String s = str.length() < 2 ? str : str.substring(0, 2);
String s1 = str.substring(4, 5);
int hour = Integer.parseInt(s);
int minitute = Integer.parseInt(s);
if (minitute == 59) {
minitute = 00;
second = 03;
hour += 1;
subtitle.setEndTime(hour + minitute + ":" + second);
} else {
minitute += 1;
second = 03;
subtitle.setEndTime(hour + minitute + ":" + second);
}
}
if (second == 62) {
String s = str.length() < 2 ? str : str.substring(0, 2);
String s1 = str.substring(4, 5);
int hour = Integer.parseInt(s);
int minitute = Integer.parseInt(s);
if (minitute == 59) {
minitute = 00;
second = 04;
hour += 1;
subtitle.setEndTime(hour + minitute + ":" + second);
} else {
minitute += 1;
second = 04;
subtitle.setEndTime(hour + minitute + ":" + second);
}
}
if (second == 63) {
String s = str.length() < 2 ? str : str.substring(0, 2);
String s1 = str.substring(4, 5);
int hour = Integer.parseInt(s);
int minitute = Integer.parseInt(s);
if (minitute == 59) {
minitute = 00;
second = 05;
hour += 1;
subtitle.setEndTime(hour + minitute + ":" + second);
} else {
minitute += 1;
second = 05;
subtitle.setEndTime(hour + minitute + ":" + second);
}
}
if (second == 64) {
String s = str.length() < 2 ? str : str.substring(0, 2);
String s1 = str.substring(4, 5);
int hour = Integer.parseInt(s);
int minitute = Integer.parseInt(s);
if (minitute == 59) {
minitute = 00;
second = 06;
hour += 1;
subtitle.setEndTime(hour + minitute + ":" + second);
} else {
minitute += 1;
second = 06;
subtitle.setEndTime(hour + minitute + ":" + second);
}
}
if (second > 60) {
String s = str.length() < 2 ? str : str.substring(0, 2);
String s1 = str.substring(4, 5);
int hour = Integer.parseInt(s);
int minitute = Integer.parseInt(s1);
second = 00;
subtitle.setEndTime(hour + minitute + ":" + second);
}
}
Sub.add(subtitle);
ValueHolder.Sub = Sub;
Timer t = new Timer(true);
t.schedule(new TimerTask() {
@Override
public void run() {
runOnUiThread(new Runnable() {
@Override
public void run() {
barcode.setText("");
barcode.setEnabled(true);
}
});
}
}, 5000);
File myDirectorytest = new File(Environment.getExternalStorageDirectory(), "onTextChangedValueHolder");
if (!myDirectorytest.exists()) {
myDirectorytest.mkdirs();
}
}
}
@Override
public void afterTextChanged(Editable s) {
}
});
}
private void initRecorder() {
recorder.setAudioSource(MediaRecorder.AudioSource.MIC);
recorder.setVideoSource(MediaRecorder.VideoSource.CAMERA);
CamcorderProfile cpHigh = CamcorderProfile
.get(CamcorderProfile.QUALITY_480P);
recorder.setProfile(cpHigh);
setDayTimestamp();
setvideoNamestamp();
recorder.setOutputFile("/sdcard/C3dssImageProcessing/" + ValueHolder.dayFile + "/" + ValueHolder.videoName + "/" + ValueHolder.videoName + ".mp4");
recorder.setMaxDuration(86400000); // 50 seconds
recorder.setMaxFileSize(1000000000); // Approximately 5 megabytes
}
private void prepareRecorder() {
recorder.setPreviewDisplay(holder.getSurface());
try {
recorder.prepare();
} catch (IllegalStateException e) {
e.printStackTrace();
Log.e("illegal :",e.toString());
// finish();
} catch (IOException e) {
e.printStackTrace();
Log.e("IOEXCEPTION :",e.toString());
//finish();
}
}
public void onClick(final View v) {
final Thread stopWh = new Thread() {
final int[] hour = new int[1];
final int[] minute = new int[1];
final int[] second = new int[1];
@Override
public void run() {
while (!isInterrupted()) {
if (!durationVal) {
second[0] = 00;
minute[0] = 00;
hour[0] = 00;
}
if (duration) {
runOnUiThread(new Runnable() {
@Override
public void run() {
durationVal = true;
second[0] += 1;
if (second[0] == 59) {
minute[0] += 1;
second[0] = 0;
}
if (minute[0] == 60) {
hour[0] = 1;
minute[0] = 0;
}
if (hour[0] > 0) {
DecimalFormat formatter = new DecimalFormat("00");
stopWatch.setText(formatter.format(hour[0]) + ":" + formatter.format(minute[0]) + "" + formatter.format(second[0]));
} else {
DecimalFormat formatter = new DecimalFormat("00");
stopWatch.setText(formatter.format(minute[0]) + ":" + formatter.format(second[0]));
}
}
});
}
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
};
if (recording) {
barcode.setEnabled(false);
barcode.setFocusable(false);
cameraView.setVisibility(View.INVISIBLE);
initiateCamera();
loading.hide();
camera_view.setVisibility(View.VISIBLE);
duration = false;
durationVal = false;
recording = false;
createSRTfile(ValueHolder.Sub);
stopWatch.setText("00:00");
p = 1;
live.setVisibility(View.INVISIBLE);
live.setSelected(false);
st.setText("START");
barcode.setFocusableInTouchMode(true);
barcode.setFocusable(true);
getWindow().setSoftInputMode(
WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_HIDDEN
);
loop = true;
} else {
recording = true;
barcode.setEnabled(true);
barcode.setFocusable(true);
if (p == 0) {
camera_view.setVisibility(View.INVISIBLE);
stopCamera();
initRecorder();
stopWh.start();
cameraView.setVisibility(View.VISIBLE);
} else {
camera_view.setVisibility(View.INVISIBLE);
stopCamera();
initRecorder();
duration = true;
cameraView.setVisibility(View.VISIBLE);
}
recorder.start();
loading.show();
barcode.setFocusableInTouchMode(true);
barcode.setFocusable(true);
getWindow().setSoftInputMode(
WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_HIDDEN
);
Sub = new ArrayList<>();
live.setVisibility(View.VISIBLE);
st.setText("STOP");
live.setText("Live Recording...");
live.setSelected(true);
File myDirectoryDay1 = new File(Environment.getExternalStorageDirectory(), "C3dssImageProcessing/" + ValueHolder.dayFile);
if (!myDirectoryDay1.exists()) {
myDirectoryDay1.mkdirs();
}
File myDirectoryDay = new File(Environment.getExternalStorageDirectory(), "C3dssImageProcessing/" + ValueHolder.dayFile + "/" + ValueHolder.videoName);
if (!myDirectoryDay.exists()) {
myDirectoryDay.mkdirs();
}
}
}
public void surfaceCreated(SurfaceHolder holder) {
prepareRecorder();
}
public void surfaceChanged(SurfaceHolder holder, int format, int width,
int height) {
}
public void surfaceDestroyed(SurfaceHolder holder) {
Toast.makeText(getApplicationContext(), "surface destroyed on main Activity", Toast.LENGTH_LONG).show();
if (recording) {
recorder.stop();
recording = false;
}
recorder.reset();
}
private void setDayTimestamp() {
ValueHolder.dayFile = new SimpleDateFormat("yyyy-MM-dd").format(new java.util.Date());
File myDirectory = new File(Environment.getExternalStorageDirectory(), "C3dssImageProcessing/" + ValueHolder.dayFile);
if (!myDirectory.exists()) {
myDirectory.mkdirs();
}
}
private void setvideoNamestamp() {
ValueHolder.videoName = new SimpleDateFormat("yyyy-MM-dd-HH-mm-ss").format(new java.util.Date());
File myDirectoryDay = new File(Environment.getExternalStorageDirectory(), "C3dssImageProcessing/" + ValueHolder.dayFile + "/" + ValueHolder.videoName);
if (!myDirectoryDay.exists()) {
// Toast.makeText(getApplicationContext(), "v name : "+ValueHolder.videoName, Toast.LENGTH_LONG).show();
myDirectoryDay.mkdirs();
}
}
private void createSRTfile(ArrayList<Subtitle> sub) {
if (!(sub == null)) {
if (sub.size() > 0) {
try {
BufferedWriter writer1 = new BufferedWriter(new FileWriter("/sdcard/C3dssImageProcessing/" + ValueHolder.dayFile + "/" + ValueHolder.videoName + "/" + ValueHolder.videoName + ".srt"));
// PrintWriter writer = new PrintWriter("/sdcard/C3dssImageProcessing/" + ValueHolder.dayFile + "/" + ValueHolder.videoName + ".srt", "UTF-8");
for (int i = 0; i < sub.size(); i++) {
if (i == 0) {
writer1.write("1");
//writer.println("1");
writer1.newLine();
} else {
int p = i+1;
writer1.write(p);
writer1.newLine();
}
writer1.write(sub.get(i).getStartTime() + ",560 --> " + sub.get(i).getEndTime() + ",580 ");
// writer1.write(newline);
writer1.newLine();
writer1.write(sub.get(i).getBarcode()+"\n");
writer1.newLine();
writer1.newLine();
}
writer1.close();
} catch (IOException e) {
// do something
}
}
}
}
@Override
public void onBackPressed() {
super.onBackPressed();
}
private void initiateCamera(){
camera_view = (FrameLayout)findViewById(R.id.camerPreview);
Camera mCamera = null;
try{
mCamera = Camera.open();//you can use open(int) to use different cameras
} catch (Exception e){
Log.d("ERROR", "Failed to get camera: " + e.getMessage());
}
if(mCamera != null) {
mCameraView = new CameraPreview(this, mCamera);//create a SurfaceView to show camera data
ValueHolder.cam = mCamera;
camera_view.addView(mCameraView);//add the SurfaceView to the layout
}
}
private void stopCamera(){
ValueHolder.cam.stopPreview();
ValueHolder.cam.release();
}
}
答案 0 :(得分：-3)
您可以使用此库来实现结果。 Material Camera
集成lib后使用此库的示例代码
{
"query": {
"bool": {
"should": [
{
"match": {
"text": "abc"
}
} ,
{
"match": {
"text": "zyx"
}
},
{
"match": {
"text": "something"
}
}
]
}
}
}