android学习笔记
2014-11-20 13:10 anjsoft 阅读(156) 评论(0) 编辑 收藏 举报db shell dmesg 会打印出内核的调试信息
可以设置任意的端口号,做为主机向模拟器或设备的请求端口。如:
adb forward tcp:5555 tcp:8000
adb bugreport
db shell logcat -b radio 记录无线通讯日志
db get-product adb get-serialno 设备ID和序列号
db shell sqlite3
Bitmap myBmp= BitmapFactory.decodeResource()
myBmp.getHeight()/getWidth() ;//获取图片高和宽
xImageView.setImageDrawble(getResources().getDrawable(R.drawable.xxx);//设置图片给imageView
getResources().getString(R.string.xxx);//取字符串
requestWindowFeature(Window.FEATURE_NO_TITLE);//设置全屏
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,WindowManager.LayoutParams.FLAG_FULLSCREEN);//设置全屏
new Date(System.currentTimeMillis()); //系统时间
am = (AudioManager)getSystemService(Content.AUDIO_SERVICE);
volume= am.getStreamVolume(AudioManager.STREAM_RING);//声音大小
xxProgress.setProgress(volume);
am.setRingerMode(AudioManager.RINGER_MODE_SILENT);//静音
am.adjustVolume(AudioManager.ADJUST_LOWER,0);//设置音量调小格 ADJUST_RAISE 调大
* 播放MP3
mp = new MediaPlayer();
mp = MediaPlayer.create(xx.this,R.raw.xxx);
mp.prepare();
mp.start();stop() pause();
*录音机
Environment.getExternalStorageState().equals(android.os.Environment.MEDIA_MOUNTED); //sdcard是否存在
myRecAudioDir = Environment.getExternalStorageDirectory();//sdcard目录
myRecAudioFile = File.creaetTempFile(strTempFile,".amr",myRecAudioDir);//创建录音文件
mr = new MediaRecorder();
mr.setAudioSource(MediaRecorder.AudioSource.MIC);
mr.setOutputFormat(MediaRecorder.OutputFormat.DEFAULT);
mr.setAudioEncoder(MediaRecorder.AudioEncoder.DEFAULT);
mr.setOutputFile(mRecAudioFile.getAbsolutePath());
mr.prepare();
mr.start(); stop ;release();
*拍照
*视频播放
ViewView
*优化
<merge/>
Runtime.getRuntime().totalMemory();
Runtime.getRuntime().freeMemory();