拍照、偷拍
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public class MainActivity extends Activity { private ImageView iv; private File file ; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); iv = (ImageView) findViewById(R.id.iv); } public void click(View view) { Intent intent = new Intent(); // 指定拍照的意图。 intent.setAction(MediaStore.ACTION_IMAGE_CAPTURE);//指定 录像的意图 intent.setAction(MediaStore.ACTION_VIDEO_CAPTURE); file = new File(Environment.getExternalStorageDirectory(),System.currentTimeMillis()+".jpg"); intent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(file)); // 指定保存文件的路径 startActivityForResult(intent, 100); } @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { if(requestCode==100){ iv.setImageURI(Uri.fromFile(file)); } super.onActivityResult(requestCode, resultCode, data); }}<uses-permission android:name="android.permission.CAMERA" /><uses-feature android:name="android.hardware.camera" /><uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" /><uses-permission android:name="android.permission.RECORD_AUDIO" /><uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
public class MainActivity extends Activity { private ImageView iv; //照相机 private Camera mCamera; //照相机预览类 private CameraPreview mPreview; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); iv = (ImageView) findViewById(R.id.iv); //照相机实例 mCamera = getCameraInstance(); //照相预览的画面 mPreview = new CameraPreview(this, mCamera); FrameLayout preview = (FrameLayout) findViewById(R.id.camera_preview); preview.addView(mPreview); } //拍摄照片 public void click(View view){ mCamera.autoFocus(new AutoFocusCallback() { //对焦完成之后 拍照 @Override public void onAutoFocus(boolean success, Camera camera) { //拍照功能 mCamera.takePicture(null, null, new PictureCallback() { @Override public void onPictureTaken(byte[] data, Camera camera) { try { File file = new File(Environment.getExternalStorageDirectory(),SystemClock.uptimeMillis()+".jpg"); FileOutputStream fos = new FileOutputStream(file); fos.write(data);//data:拍照的图片 fos.close(); Toast.makeText(getApplicationContext(), "成功", 0).show(); mCamera.startPreview(); } catch (Exception e) { e.printStackTrace(); } } }); } }); } /** 获取一个照相机实例 */ public static Camera getCameraInstance(){ Camera c = null; try { c = Camera.open(); // attempt to get a Camera instance } catch (Exception e){ // Camera is not available (in use or does not exist) } return c; // returns null if camera is unavailable } @Override protected void onDestroy() { mCamera.stopPreview(); mCamera.release(); mCamera = null; super.onDestroy(); }}
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