网络判断，进度条显示，数组转化Drawable对象--封装的方法

//判断手机是否有网
public boolean isConnected() {
    // 获取手机全部链接管理对象（包括对wi-fi,net等链接的管理）
    try {
        ConnectivityManager connectivity = (ConnectivityManager) this
                .getSystemService(this.CONNECTIVITY_SERVICE);
        if (connectivity != null) {
            // 获取网络链接管理的对象
            NetworkInfo info = connectivity.getActiveNetworkInfo();

            if (info != null && info.isConnected()) {
                // 判断当前网络是否已经链接
                if (info.getState() == NetworkInfo.State.CONNECTED) {
                    return true;
                }
            }
        }
    } catch (Exception e) {
    }
    return false;
}

/**
 * 隐藏正在加载的进度条
 */
private Dialog loadDialog;
private int dialogNum;

public void dismissLoadDialog() {
    dialogNum--;
    if (dialogNum > 0) {
        return;
    }
    if (null != loadDialog && loadDialog.isShowing() == true) {
        loadDialog.dismiss();
        loadDialog = null;
    }
}


//把数组转化为Drawable对象
public static Drawable byteToDrawable(byte[] byteArray) {
    try {
        String string = new String(byteArray, "UTF-8");
    } catch (UnsupportedEncodingException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
    ByteArrayInputStream ins = new ByteArrayInputStream(byteArray);
    return Drawable.createFromStream(ins, null);
}

/**
 * 显示正在加载的进度条
 */
public void showLoadingDialog() {
    dialogNum++;
    if (loadDialog != null && loadDialog.isShowing()) {
        loadDialog.dismiss();
        loadDialog = null;
    }
    loadDialog = new Dialog(this, R.style.dialog);
    loadDialog.setCanceledOnTouchOutside(false);

    loadDialog.setContentView(R.layout.layout_dialog);
    try {
        loadDialog.show();
    } catch (WindowManager.BadTokenException exception) {
        exception.printStackTrace();
    }
}

//检查邮箱
private boolean checkEmail() {
    String emailString = edit_email.getText().toString().trim();
    if (TextUtils.isEmpty(emailString)) {
        hint_emamil.setText("邮箱不能为空");
        return false;
    }
    Pattern pattern = Pattern.compile("^([a-zA-Z0-9_\\-\\.]+)@((\\[[0-9]{1,3}\\.[0-9]{1,3}\\.[0-9]{1,3}\\.)|(([a-zA-Z0-9\\-]+\\.)+))([a-zA-Z]{2,4}|[0-9]{1,3})(\\]?)$");
    Matcher matcher = pattern.matcher(emailString);
    if (matcher.matches()) {
        hint_emamil.setText("");
        return true;
    } else {
        hint_emamil.setText("邮箱格式不正确");
        return false;
    }
}
private boolean checkPasswork() {
    String editpasswordsString = edit_password.getText().toString();
    if (TextUtils.isEmpty(editpasswordsString)) {
        hint_passwork.setText("密码不能为空");
        return false;
    } else if (editpasswordsString.length() < 6 || editpasswordsString.length() > 16) {
        hint_passwork.setText("密码仅限6-16个字符");
        return false;
    } else {
        hint_passwork.setText("");
        return true;
    }
}

private boolean checkAgainPasswork() {

    String editagainpasswordsString = edit_again_password.getText().toString();
    if (TextUtils.isEmpty(editagainpasswordsString)) {
        hint_again_passord.setText("确认密码不能为空");
        // shakeViewToNotifyUser(edit_again_password);
        return false;
    } else {
        hint_again_passord.setText("");
        String passwordsString = edit_password.getText().toString();
        if (!passwordsString.equals(editagainpasswordsString)) {
            hint_again_passord.setText("密码不一致");
            return false;
        } else {
            return true;
        }
    }
}
//检查验证码
private boolean checkCaptcha() {
    if (mCaptchaBytes == null) {
        Toast.makeText(getActivity(), "未获取验证码", Toast.LENGTH_SHORT).show();
        return false;
    }
    mCaptchaEditTextString = edit_yanzhengma.getText().toString().trim();
    if(mCaptchaEditTextString.contains(" ")){
        hint_yanzhengma.setText("验证码不正确");
        return false;
    }
    if (mCaptchaEditTextString == null || "".equals(mCaptchaEditTextString)) {
        // shakeViewToNotifyUser(edit_yanzhengma);
        hint_yanzhengma.setText("验证码不能为空");
        return false;
    } else {
        hint_yanzhengma.setText("");
        return true;
    }
}

 //检查协议
private boolean checkXieyi() {
    CheckBox checkBox = (CheckBox) view.findViewById(R.id.xieyi_check);
    if (!checkBox.isChecked()) {
        hint_xieyi.setText("未勾选《央视网网络服务使用协议》");
        return false;
    } else {
        hint_xieyi.setText("");
        return true;
    }
}

 

使用

if (!isConnected()) {
    showToast(R.string.network_invalid);
    return;
}

//点击注册
if (!checkEmail()) {
    return;
}
if (!checkPasswork()) {
    return;
}
if (!checkAgainPasswork()) {
    return;
}

if (!checkCaptcha()) {
    return;
}

if (!checkXieyi()) {
    return;
}