调用相机实现拍照

1.开启拍照权限

2.xml文件

<LinearLayout
        android:layout_width="300dp"
        android:layout_height="match_parent"
        android:layout_marginTop="15dp"
        android:gravity="center_horizontal"
        android:orientation="horizontal"
        android:visibility="gone">

        <ImageView
            android:id="@+id/iv_num"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center_vertical"
            android:src="@mipmap/contact9" />

        <EditText
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_alignBaseline="@id/iv_num"
            android:layout_marginLeft="10dp"
            android:background="@null"
            android:focusable="true"
            android:hint="上传您的身份证正反面" />
    </LinearLayout>

    <LinearLayout
        android:layout_width="300dp"
        android:layout_height="wrap_content"
        android:layout_marginTop="5dp"
        android:orientation="horizontal">

        <ImageView
            android:id="@+id/id1"
            android:layout_width="0dp"
            android:layout_weight="1"
            android:layout_height="100dp"
            android:clickable="true"
            android:scaleType="fitXY"
            android:layout_margin="5dp"
            android:background="@mipmap/contact_pic1" />

        <ImageView
            android:id="@+id/id2"
            android:layout_width="0dp"
            android:layout_weight="1"
            android:layout_height="100dp"
            android:clickable="true"
            android:scaleType="fitXY"
            android:layout_margin="5dp"
            android:background="@mipmap/contact_pic2" />

    </LinearLayout>

</LinearLayout>
3.MainActivity.class

public class MainActivity extends Activity implements View.OnClickListener {
    /**
     * Called when the activity is first created.
     */
    private ImageView id1;
    private ImageView id2;
    private String SD_CARD_TEMP_DIR;
    private String SD_CARD_TEMP_DIR2;
    Bitmap myBitmap;
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        SD_CARD_TEMP_DIR = Environment.getExternalStorageDirectory()
                + File.separator + "front.jpg";//正面照片设定照相后保存的文件名，类似于缓存文件
        SD_CARD_TEMP_DIR2 = Environment.getExternalStorageDirectory()
                + File.separator + "reverse.jpg";//反面照片设定照相后保存的文件名，类似于缓存文件
        id1 = (ImageView) findViewById(R.id.id1);
        id2 = (ImageView) findViewById(R.id.id2);
        id1.setOnClickListener(this);
        id2.setOnClickListener(this);
    }
    @Override
    public void onClick(View v) {
        switch (v.getId()) {
            case R.id.id1:
                //拍照
                setCameras(1);

                break;
            case R.id.id2:
                setCameras(-1);
                break;
        }
    }
    private void setCameras(int i) {
        Intent cameraIntent = new Intent(
                MediaStore.ACTION_IMAGE_CAPTURE);

        if (i == 1) {
            cameraIntent.putExtra(android.provider.MediaStore.EXTRA_OUTPUT,
                    Uri.fromFile(new File(SD_CARD_TEMP_DIR)));

            startActivityForResult(cameraIntent, 0);
        } else if (i == -1) {
            cameraIntent.putExtra(android.provider.MediaStore.EXTRA_OUTPUT,
                    Uri.fromFile(new File(SD_CARD_TEMP_DIR2)));

            startActivityForResult(cameraIntent, 1);
        }
    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        if (requestCode == 0) {
            Log.e("requestCode", "Need 0");
            if (resultCode == RESULT_OK) {
                Log.e("resultCode", "OK!!!" + SD_CARD_TEMP_DIR);
                myBitmap = BitmapFactory.decodeFile(SD_CARD_TEMP_DIR);
                id1.setImageBitmap(myBitmap);
            } else {
                Log.e("resultCode", "" + resultCode);
            }
        } else if (requestCode == 1) {
            Log.e("requestCode", "Need 1");
            if (resultCode == RESULT_OK) {
                Log.e("resultCode", "OK!!!" + SD_CARD_TEMP_DIR2);
                myBitmap = BitmapFactory.decodeFile(SD_CARD_TEMP_DIR2);
                id2.setImageBitmap(myBitmap);
            } else {
                Log.e("resultCode", "" + resultCode);
            }
        } else {
            Log.e("requestCode", "Not Need");
        }
    }

}