surfaceview
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2022-03-29 19:24:50
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@[toc] surfaceview
播放视频
activity
package com.example.day11_surfaceview_exe;
import android.content.pm.ActivityInfo;
import android.media.MediaPlayer;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.support.v7.app.AppCompatActivity;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
import android.view.View;
import android.widget.Button;
import android.widget.ProgressBar;
import android.widget.SeekBar;
import android.widget.TextView;
import android.widget.Toast;
import java.io.IOException;
import java.util.Timer;
import java.util.TimerTask;
public class MainActivity extends AppCompatActivity implements SurfaceHolder.Callback {
private SurfaceView surface;
private SurfaceHolder holder;
private MediaPlayer player;
private Button start;
private Button pause;
private SeekBar pro;
private Button previous;
private Button next;
private Button change;
private Timer timer = new Timer();
private boolean isLANDSCAP;
private Handler handler = new Handler() {
@Override
public void handleMessage(Message msg) {
super.handleMessage(msg);
if (msg.what == 101) {
int position = player.getCurrentPosition();
int duration = player.getDuration();
int progress = position * 100 / duration;
pro.setProgress(progress);
//总时长
int min = duration / (1000 * 60);
int sec = duration / 1000 % 60;
String time_w = "";
if (min < 10) {
time_w += "0";
}
time_w += min + ":";
if (sec < 10) {
time_w += "0";
}
time_w += sec;
tvWei.setText(time_w);
//已播放时长
int min_t = position / (1000 * 60);
int sec_t = position / 1000 % 60;
String time_t = "";
if (min_t < 10) {
time_t += "0";
}
time_t += min_t + ":";
if (sec_t < 10) {
time_t += "0";
}
time_t += sec_t;
tvTou.setText(time_t);
}
}
};
private TextView tvTou;
private TextView tvWei;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
player = new MediaPlayer();
initView();
initPlayer();
}
private void initPlayer() {
try {
player.setDataSource("http://vd3.bdstatic.com/mda-jk060vvmi12xmdc9/mda-jk060vvmi12xmdc9.mp4");
player.prepareAsync();
player.setOnPreparedListener(new MediaPlayer.OnPreparedListener() {
@Override
public void onPrepared(MediaPlayer mp) {
player.start();
//进度
initTimer();
}
});
} catch (IOException e) {
e.printStackTrace();
}
}
private void initTimer() {
timer.schedule(new TimerTask() {
@Override
public void run() {
handler.sendEmptyMessage(101);
}
}, 0, 500);
}
private void initView() {
surface = (SurfaceView) findViewById(R.id.surface);
start = (Button) findViewById(R.id.start);
pro = (SeekBar) findViewById(R.id.pro);
previous = (Button) findViewById(R.id.previous);
next = (Button) findViewById(R.id.next);
change = (Button) findViewById(R.id.change);
tvTou = (TextView) findViewById(R.id.tv_tou);
tvWei = (TextView) findViewById(R.id.tv_wei);
holder = surface.getHolder();
//添加接口，以便回调接口
holder.addCallback(this);
start.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (player.isPlaying()) {
player.pause();
start.setBackgroundResource(R.drawable.playbar_btn_play);
} else {
player.start();
start.setBackgroundResource(R.drawable.playbar_btn_pause);
}
}
});
change.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (isLANDSCAP) {
//切换成竖屏
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
isLANDSCAP = false;
} else {
//切换成横屏
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
isLANDSCAP = true;
}
}
});
player.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
@Override
public void onCompletion(MediaPlayer mp) {
Toast.makeText(MainActivity.this, "播放完毕！", Toast.LENGTH_SHORT).show();
}
});
pro.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
@Override
public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
if (fromUser) {
player.seekTo(progress * player.getDuration() / 100);
}
}
@Override
public void onStartTrackingTouch(SeekBar seekBar) {
}
@Override
public void onStopTrackingTouch(SeekBar seekBar) {
}
});
}
@Override
public void surfaceCreated(SurfaceHolder holder) {
//显示在surfaceview上
player.setDisplay(holder);
}
@Override
public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {
}
@Override
public void surfaceDestroyed(SurfaceHolder holder) {
if (player != null) {
//释放资源
player.release();
player = null;
}
}
}
歌词滚动
activity
package com.example.day_surface_view_sing_word;
import android.Manifest;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.Path;
import android.media.MediaPlayer;
import android.os.Build;
import android.os.Bundle;
import android.os.Handler;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
import android.view.View;
import android.widget.Button;
import android.widget.SeekBar;
import com.example.day_surface_view_sing_word.bean.Sing;
import com.google.gson.Gson;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.Timer;
import java.util.TimerTask;
public class MainActivity extends AppCompatActivity implements SurfaceHolder.Callback {
private static final String TAG = "MainActivity";
private String Alyric = "{\"sgc\":false,\"sfy\":false,\"qfy\":false,\"lyricUser\":{\"id\":29418062,\"status\":0,\"demand\":0,\"userid\":12907497,\"nickname\":\"Simfre\",\"uptime\":1441503572343},\"lrc\":{\"version\":5,\"lyric\":\"[by:简单de频率]\\n[00:00.000] 作曲 : 张超\\n[00:01.000] 作词 : 张超\\n[00:22.600]苍茫的天涯是我的爱\\n[00:26.280]绵绵的青山脚下花正开\\n[00:30.130]什么样的节奏是最呀最摇摆\\n[00:33.880]什么样的歌声才是最开怀\\n[00:37.750]弯弯的河水从天上来\\n[00:41.310]流向那万紫千红一片海\\n[00:45.330]火辣辣的歌谣是我们的期待\\n[00:48.880]一路边走边唱才是最自在\\n[00:52.630]我们要唱就要唱得最痛快\\n[00:56.610]你是我天边最美的云彩\\n[01:00.280]让我用心把你留下来（留下来）\\n[01:04.340]悠悠的唱着最炫的民族风\\n[01:07.840]让爱卷走所有的尘埃\\n[01:10.470]（我知道）你是我心中最美的云彩\\n[01:15.380]斟满美酒让你留下来（留下来）\\n[01:19.380]永远都唱着最炫的民族风\\n[01:22.760]是整片天空最美的姿态\\n[01:26.700]哟啦啦呵啦呗\\n[01:28.520]伊啦嗦啦呵啦呗呀\\n[01:30.700]我听见你心中动人的天籁\\n[01:34.260]登上天外云霄的舞台\\n[01:37.530]\\n[01:53.250]苍茫的天涯是我的爱\\n[01:56.940]绵绵的青山脚下花正开\\n[02:00.820]什么样的节奏是最呀最摇摆\\n[02:04.570]什么样的歌声才是最开怀\\n[02:08.440]弯弯的河水从天上来\\n[02:12.000]流向那万紫千红一片海\\n[02:15.810]火辣辣的歌谣是我们的期待\\n[02:19.620]一路边走边唱才是最自在\\n[02:23.310]我们要唱就要唱得最痛快\\n[02:27.220]你是我天边最美的云彩\\n[02:30.920]让我用心把你留下来（留下来）\\n[02:34.920]悠悠的唱着最炫的民族风\\n[02:38.410]让爱卷走所有的尘埃\\n[02:41.410]（我知道）你是我心中最美的云彩\\n[02:46.210]斟满美酒让你留下来（留下来）\\n[02:50.140]永远都唱着最炫的民族风\\n[02:53.460]是整片天空最美的姿态\\n[02:57.810]\\n[03:18.290]你是我天边最美的云彩\\n[03:21.910]让我用心把你留下来（留下来）\\n[03:26.030]悠悠的唱着最炫的民族风\\n[03:29.510]让爱卷走所有的尘埃\\n[03:32.260]（我知道）你是我心中最美的云彩\\n[03:37.010]斟满美酒让你留下来（留下来）\\n[03:41.070]永远都唱着最炫的民族风\\n[03:44.570]是整片天空最美的姿态\\n[03:48.990]\\n[03:50.300]我听见你心中那动人的天籁\\n[03:53.990]就忽如一夜春风袭来满面桃花开\\n[03:57.860]我忍不住去采 我忍不住去摘\\n[04:01.620]我敞开胸怀为你等待\\n[04:04.340]\\n[04:05.840]你是我天边最美的云彩\\n[04:09.280]让我用心把你留下来\\n[04:13.010]悠悠的唱着最炫的民族风\\n[04:16.750]让爱卷走所有的尘埃\\n[04:19.500]（我知道）你是我心中最美的云彩\\n[04:24.250]斟满美酒让你留下来（留下来）\\n[04:28.380]永远都唱着最炫的民族风\\n[04:31.750]是整片天空最美的姿态\\n[04:36.190]\\n\"},\"klyric\":{\"version\":0,\"lyric\":null},\"tlyric\":{\"version\":0,\"lyric\":null},\"code\":200}";
private String lyric;
private List<Sing> list = new ArrayList<>();
private SurfaceView sfv;
private SeekBar seek;
private SurfaceHolder holder;
private Path path = new Path();
private int position;
private Timer timer = new Timer();
private MediaPlayer player;
private Handler handler = new Handler();
private Button start;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
requestPermissions(new String[]{
Manifest.permission.READ_EXTERNAL_STORAGE,
Manifest.permission.WRITE_EXTERNAL_STORAGE
}, 100);
}
initView();
initLyric();
initPlayer();
initTimer();
}
private void initTimer() {
timer.schedule(new TimerTask() {
@Override
public void run() {
//获取当前播放的进度
int currentPosition = player.getCurrentPosition();
int duration = player.getDuration();
final int progress = currentPosition * 100 / duration;
handler.post(new Runnable() {
@Override
public void run() {
seek.setProgress(progress);
}
});
//歌词跟随
for (int i = 0; i < list.size(); i++) {
if (list.get(i).getSingTime() > currentPosition) {
position = i - 1;
break;
}
}
}
}, 0, 100);
}
private void initPlayer() {
//创建对象
player = new MediaPlayer();
//判断是否存在
if (player != null) {
//重置
player.reset();
try {
//设置播放的资源
player.setDataSource("/storage/emulated/0/Music/凤凰传奇 - 最炫民族风(Live).mp3");
//异步准备
player.prepareAsync();
//监听
player.setOnPreparedListener(new MediaPlayer.OnPreparedListener() {
@Override
public void onPrepared(MediaPlayer mp) {
//启动
player.start();
start.setBackgroundResource(R.drawable.playbar_btn_pause);
}
});
} catch (IOException e) {
e.printStackTrace();
}
}
}
private void initLyric() {
//获取歌词
lyric = new Gson().fromJson(Alyric, Lyric.class).getLrc().getLyric();
//切割歌词
String[] split = lyric.split("\n");
for (int i = 0; i < split.length; i++) {
String[] song = split[i].split("\\[|\\:|\\.|\\]");
if (song.length > 4) {
String min = song[1];
Log.d(TAG, "initLyric: 分" + min);
String sec = song[2];
Log.d(TAG, "initLyric: 秒" + sec);
String msec = song[3];
Log.d(TAG, "initLyric:毫秒" + msec);
String texts = song[4];
Log.d(TAG, "initLyric:歌词" + texts);
int times = Integer.parseInt(min) * 60 * 1000 + Integer.parseInt(sec) * 1000 + Integer.parseInt(msec);
Sing sing = new Sing(texts, times);
list.add(sing);
}
}
}
@Override
public void surfaceCreated(SurfaceHolder holder) {
new SongThread().start();
}
@Override
public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {
}
@Override
public void surfaceDestroyed(SurfaceHolder holder) {
if (player != null) {
player.release();
player = null;
}
if (timer != null) {
timer.cancel();
}
}
private void initView() {
sfv = (SurfaceView) findViewById(R.id.sfv);
seek = (SeekBar) findViewById(R.id.seek);
holder = sfv.getHolder();
holder.addCallback(this);
seek.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
@Override
public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
int duration = player.getDuration();
if (fromUser) {
player.seekTo(progress * duration / 100);
}
}
@Override
public void onStartTrackingTouch(SeekBar seekBar) {
}
@Override
public void onStopTrackingTouch(SeekBar seekBar) {
}
});
start = (Button) findViewById(R.id.start);
start.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (player.isPlaying()) {
player.pause();
start.setBackgroundResource(R.drawable.playbar_btn_play);
} else {
player.start();
start.setBackgroundResource(R.drawable.playbar_btn_pause);
}
}
});
}
class SongThread extends Thread {
@Override
public void run() {
super.run();
//正在播放
Paint paint = new Paint();
paint.setColor(Color.RED);
paint.setTextSize(60);
paint.setStyle(Paint.Style.FILL);
paint.setAntiAlias(true);
//已播或者未播
Paint paint2 = new Paint();
paint2.setColor(Color.GREEN);
paint2.setTextSize(60);
paint2.setStyle(Paint.Style.FILL);
paint2.setAntiAlias(true);
while (true) {
Canvas canvas = holder.lockCanvas();
if (canvas == null) {
break;
}
path = new Path();
canvas.drawColor(Color.WHITE);
//播过的
for (int i = 0; i <= position - 1; i++) {
canvas.drawText(list.get(i).getText(), 100, 700 - (position - i) * 100, paint2);
canvas.drawPath(path, paint2);
}
//正在播的
canvas.drawText(list.get(position).getText(), 100, 700, paint);
canvas.drawPath(path, paint);
//未播的
for (int i = position + 1; i < list.size() - 1; i++) {
canvas.drawText(list.get(i).getText(), 100, 700 + (i - position) * 100, paint2);
canvas.drawPath(path, paint2);
}
holder.unlockCanvasAndPost(canvas);
}
}
}
}
画板
activity
package com.example.day1113_surfaceview;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.Path;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.MotionEvent;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
import android.view.View;
import android.widget.Button;
public class MainActivity extends AppCompatActivity implements SurfaceHolder.Callback {
private Button butC;
private SurfaceView sfv;
private Paint paint;
private Path path = new Path();
private SurfaceHolder holder;
private Button red;
private Button green;
private Button blue;
private Button yellow;
private Button black;
private Button purple;
private Button gray;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
initView();
}
private void initView() {
butC = (Button) findViewById(R.id.but_c);
sfv = (SurfaceView) findViewById(R.id.sfv);
red = (Button) findViewById(R.id.red);
green = (Button) findViewById(R.id.green);
blue = (Button) findViewById(R.id.blue);
yellow = (Button) findViewById(R.id.yellow);
black = (Button) findViewById(R.id.black);
purple = (Button) findViewById(R.id.purple);
gray = (Button) findViewById(R.id.gray);
holder = sfv.getHolder();
holder.addCallback(this);
red.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
paint.setColor(Color.RED);
}
});
green.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
paint.setColor(Color.GREEN);
}
});
blue.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
paint.setColor(Color.BLUE);
}
});
yellow.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
paint.setColor(Color.YELLOW);
}
});
black.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
paint.setColor(Color.BLACK);
}
});
purple.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
paint.setColor(0xFFFF00FF);
}
});
gray.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
paint.setColor(Color.GRAY);
}
});
butC.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
path.reset();
}
});
sfv.setOnTouchListener(new View.OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
int action = event.getAction();
float x = event.getX();
float y = event.getY();
if (action == MotionEvent.ACTION_DOWN) {
path.moveTo(x, y);
} else if (action == MotionEvent.ACTION_MOVE) {
path.lineTo(x, y);
}
return true;
}
});
}
@Override
public void surfaceCreated(SurfaceHolder holder) {
new HuaBanThread().start();
}
@Override
public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {
}
@Override
public void surfaceDestroyed(SurfaceHolder holder) {
}
class HuaBanThread extends Thread {
@Override
public void run() {
super.run();
paint = new Paint();
paint.setColor(Color.RED);
paint.setStrokeWidth(2);
paint.setStyle(Paint.Style.STROKE);//空心
while (true) {
Canvas canvas = holder.lockCanvas();
if (canvas == null) {
break;
}
canvas.drawColor(Color.WHITE);
canvas.drawPath(path, paint);
holder.unlockCanvasAndPost(canvas);
}
}
}
}
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