标签：bar views ons end 工作 ppc 地址 pac bsp
package com.example.yanlei.myapplication; import android.media.MediaMetadataRetriever; import android.media.MediaPlayer; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.app.Activity; import android.content.Intent; import android.content.pm.ActivityInfo; import android.database.Cursor; import android.net.Uri; import android.os.Bundle; import android.provider.MediaStore; import android.support.v7.app.AppCompatActivity; import android.view.View; import android.widget.Button; import android.widget.EditText; import android.widget.SeekBar; import android.widget.TextView; import android.widget.Toast; import android.widget.VideoView; import android.app.Activity; import android.media.MediaPlayer; import android.media.MediaPlayer.OnCompletionListener; import android.media.MediaPlayer.OnErrorListener; import android.os.Bundle; import android.util.Log; import android.view.View; import android.widget.Button; import android.widget.EditText; import android.widget.SeekBar; import android.widget.Toast; import android.widget.VideoView; import android.widget.SeekBar.OnSeekBarChangeListener; import java.io.File; import java.util.HashMap; import android.os.Handler;
private Handler handler = null; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); seekBar = (SeekBar) findViewById(R.id.seekBar); // 为进度条添加进度更改事件 seekBar.setOnSeekBarChangeListener(change); //创建属于主线程的handler handler = new Handler(); }
protected void play(int msec) {
Log.i(TAG, " 获取视频文件地址");
String path = et_path.getText().toString().trim();
File file = new File(path);
if (!file.exists()) {
Toast.makeText(this, "视频文件路径错误", 0).show();
return;
}
Log.i(TAG, "指定视频源路径");
vv_video.setVideoPath(file.getAbsolutePath());
Log.i(TAG, "开始播放");
vv_video.start();
// 按照初始位置播放
vv_video.seekTo(msec);
// 设置进度条的最大进度为视频流的最大播放时长
final int time = getTimeLong(file.getAbsolutePath()) / 100;
seekBar.setMax(time);
Toast.makeText(this, "长度:" + time, Toast.LENGTH_LONG).show();
// 开始线程，更新进度条的刻度
new Thread() {
@Override
public void run() {
try {
isPlaying = true;
while (isPlaying) {
// 如果正在播放，0.1.毫秒更新一次进度条
final int current = vv_video.getCurrentPosition() / 100;
seekBar.setProgress(current);
/* try {
myText = "总时间：" + time / 10 + "秒,目前：" + current / 10 + "秒";
// pTextView.setText("总时间：" + time / 10 + "秒,目前：" + current / 10 + "秒");
new WorkThread().start();
} catch (Exception ex) {
Log.d("错误:", ex.getMessage().toString());
}*/
new Thread() {
public void run() {
myText = "总时间：" + time / 10 + "秒,目前：" + current / 10 + "秒";
handler.post(updateUIRunnable);
}
}.start();
//Toast.makeText(this, "当前:"+current,Toast.LENGTH_LONG).show();
sleep(100);
}
} catch (Exception e) {
e.printStackTrace();
}
}
}.start();
// 播放之后设置播放按钮不可用
btn_play.setEnabled(false);
vv_video.setOnCompletionListener(new OnCompletionListener() {
@Override
public void onCompletion(MediaPlayer mp) {
// 在播放完毕被回调
btn_play.setEnabled(true);
}
});
vv_video.setOnErrorListener(new OnErrorListener() {
@Override
public boolean onError(MediaPlayer mp, int what, int extra) {
// 发生错误重新播放
play(0);
isPlaying = false;
return false;
}
});
}
//工作线程
private class WorkThread extends Thread {
@Override
public void run() {
try {
pTextView.setText(myText);
} catch (Exception ex) {
Log.e("严重错误:", ex.getMessage().toString());
}
}
}
// 构建Runnable对象，并在runnable中更新UI
Runnable updateUIRunnable = new Runnable() {
@Override
public void run() {
try {
pTextView.setText(myText);
} catch (Exception ex) {
Log.e("严重错误:", ex.getMessage().toString());
}
}
};
andriod 错误：Only the original thread that created a view hierarchy can touch its views——Handler的使用
标签：bar views ons end 工作 ppc 地址 pac bsp
原文地址：http://www.cnblogs.com/gisoracle/p/7631287.html
