android实现换头像功能

来源：互联网发布：数据互通的手游编辑：程序博客网时间：2024/05/11 18:06
因为想让图片圆形显示所以用了 SimpleDrawView 也可以换成ImageView
具体代码如下:
private SimpleDraweeView mSdvs;private Bitmap head;// 头像Bitmapprivate static String path = "/sdcard/myHead/";// sd路径@Overridepublic View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {    View view = inflater.inflate(R.layout.loginfragment, null);    initView(view);    return view;}private void initView(View view) {    mLogin = (TextView) view.findViewById(R.id.login);    mLogin.setOnClickListener(this);    mSdvs = (SimpleDraweeView) view.findViewById(R.id.sdvs);    mSdvs.setOnClickListener(this);    Bitmap bt = BitmapFactory.decodeFile(path + "head.jpg");// 从SD卡中找头像，转换成Bitmap    if (bt != null) {        @SuppressWarnings("deprecation")        Drawable drawable = new BitmapDrawable(bt);// 转换成drawable        mSdvs.setImageDrawable(drawable);    } else {        /**         * 如果SD里面没有则需要从服务器取头像，取回来的头像再保存在SD中         *         */    }}@Overridepublic void onClick(View view) {    switch (view.getId()) {        case R.id.login:            //跳转到登陆页面            Intent intent = new Intent(getActivity(), MainActivity.class);            getActivity().startActivity(intent);            break;        case R.id.sdvs:            showTypeDialog();//更换头像            break;    }}private void showTypeDialog() {    AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());    final AlertDialog dialog = builder.create();    View view = View.inflate(getActivity(), R.layout.dialog_select_photo, null);    TextView tv_select_gallery = (TextView) view.findViewById(R.id.tv_select_gallery);    TextView tv_select_camera = (TextView) view.findViewById(R.id.tv_select_camera);    tv_select_gallery.setOnClickListener(new View.OnClickListener() {// 在相册中选取        @Override        public void onClick(View v) {            Intent intent1 = new Intent(Intent.ACTION_PICK, null);            intent1.setDataAndType(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, "image/*");            startActivityForResult(intent1, 1);            dialog.dismiss();        }    });    tv_select_camera.setOnClickListener(new View.OnClickListener() {// 调用照相机        @Override        public void onClick(View v) {            Intent intent2 = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);            intent2.putExtra(MediaStore.EXTRA_OUTPUT,                    Uri.fromFile(new File(Environment.getExternalStorageDirectory(), "head.jpg")));            startActivityForResult(intent2, 2);// 采用ForResult打开            dialog.dismiss();        }    });    dialog.setView(view);    dialog.show();}@Overridepublic void onActivityResult(int requestCode, int resultCode, Intent data) {    switch (requestCode) {        case 1:            if (resultCode ==RESULT_OK) {                cropPhoto(data.getData());// 裁剪图片            }            break;        case 2:            if (resultCode == RESULT_OK) {                File temp = new File(Environment.getExternalStorageDirectory() + "/head.jpg");                cropPhoto(Uri.fromFile(temp));// 裁剪图片            }            break;        case 3:            if (data != null) {                Bundle extras = data.getExtras();                head = extras.getParcelable("data");                if (head != null) {                    /**                     * 上传服务器代码                     */                    setPicToView(head);// 保存在SD卡中                    mSdvs.setImageBitmap(head);// 用ImageView显示出来                }            }            break;        default:            break;    }    super.onActivityResult(requestCode, resultCode, data);}/** * 调用系统的裁剪功能 * * @param uri */public void cropPhoto(Uri uri) {    Intent intent = new Intent("com.android.camera.action.CROP");    intent.setDataAndType(uri, "image/*");    intent.putExtra("crop", "true");    // aspectX aspectY 是宽高的比例    intent.putExtra("aspectX", 1);    intent.putExtra("aspectY", 1);    // outputX outputY 是裁剪图片宽高    intent.putExtra("outputX", 150);    intent.putExtra("outputY", 150);    intent.putExtra("return-data", true);    startActivityForResult(intent, 3);}private void setPicToView(Bitmap mBitmap) {    String sdStatus = Environment.getExternalStorageState();    if (!sdStatus.equals(Environment.MEDIA_MOUNTED)) { // 检测sd是否可用        return;    }    FileOutputStream b = null;    File file = new File(path);    file.mkdirs();// 创建文件夹    String fileName = path + "head.jpg";// 图片名字    try {        b = new FileOutputStream(fileName);        mBitmap.compress(Bitmap.CompressFormat.JPEG, 100, b);// 把数据写入文件    } catch (FileNotFoundException e) {        e.printStackTrace();    } finally {        try {            // 关闭流            b.flush();            b.close();        } catch (IOException e) {            e.printStackTrace();        }    }}
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