是否可以将所有控制变量创建为字段变量，然后在Android中将它们的引用设置为一次

Question

我已经编写了一个应用程序，在加载意图时，它会在一个特定设备上长时间崩溃。

所以我假设崩溃的原因是这个。在我开始改变应用程序的整个结构之前，我需要一些专家指导。

我将intent中所需的所有控制变量一起创建为字段变量。然后在OnCreate（）方法中，我调用一个方法setReference（），它使用引用初始化所有控件变量。有问题的应用程序有200多个控制变量，我在OnCreate（）中创建了至少200个控件变量的引用。

我假设这会对内存分配造成很大负担，并且是导致崩溃的原因。 这是代码（首先我将所有控制变量创建为字段变量）：

ImageButton ibRep, ibRep2, ibEmail, ibShare;
EditText eName, ed_Sa, ed_Ann, ed_prm, ed_mat, ed_pr_age, ed_asa, ed_asa1, ed_cirsa, ed_term, ed_la, ed_trsa, t_ppt;
EditText ed_age, i_ed_age;
Spinner sp_ttl, spOpt189, spPlans_List, sp_ann_pmt_mode, sp_834_opt, sp_term, sp_ppt, sMode;
LinearLayout llsur_ben, llPlan_List, ll_Mat, ll_Trm, ll_ann, ll_output, ll_bas_input, ll_calc_ch,
        ll_sa_b_fab, ll_xtra_ben, ll, ll_temp1, ll_temp2;
TextView hdMoney_Back, tvSur_ben1, tvSur_ben2, tvSur_ben3, tvSur_ben4, tvSur_ben5,tvSur_ben6, tv_disclaimer;
TextView tvSur_ben_amt1, tvSur_ben_amt2, tvSur_ben_amt3, tvSur_ben_amt4, tvSur_ben_amt5, tv_term, tv_defper;
TextView tvPrm_Hdr, tv_hd_mat, tv_ermsg1, tv_ermsg2, tv_ermsg3, tv_ermsg4, tv_pr_age, tv_ext_ben, tv_tpp,
        tv_maturity, tv_spp_amt, tv_la_amt, tv_sa_amt, tv_mat_sa_per, tv_sa_per_amt, tv_bonus, tv_fab,
        tv_sa, tv_sa1, tv_mat_sa, /*tv_ydab, tv_hdab, tv_qdab, tv_mdab,*/ tv_age_op, tv_term_op, tv_ppt, tv_ch_amt,
        tv_pl_sel, tv_ann_op, tv_ann_pr, tv_y_ann, tv_h_ann, tv_q_ann, tv_m_ann, tv_y_gp, tv_hy_gp, tv_q_gp,
        tv_m_gp, tv_d_gp, tv_ytx1, tv_htx1, tv_qtx1, tv_mtx1, tv_dtx1, tv_ytx2, tv_htx2, tv_qtx2, tv_mtx2,
        tv_dtx2, tv_ytot1, tv_htot1, tv_qtot1, tv_mtot1, tv_dtot1, tv_ytot2, tv_htot2, tv_qtot2, tv_mtot2,
        tv_dtot2, tv_ytpp, tv_htpp, tv_qtpp, tv_mtpp, /*tv422,*/ tv42, tv_tax1, tv_crrep, tv_crrep2, tv_xrisk_cover,
        tv_mb_title, tv_mat_disclaimer, tv_prm_disclaimer, tv_ch_repval, tv_834_opt, tv_mode, tv_send_msg;

TableRow trPlan_List, trAnnOpt, trAnOptHd, tr834Opt, tr834Opt_Hd, tr_acc_sa, tr_trsa, tr_pwb, tr_tax2,
        tr_netprm2, tr_la, tr_ret_at_mat, tr_spp, tr_la1, tr_sa, tr_mathd,tr_mathd1,tr_mathd2,tr_mathd3,
        tr_tax1, tr_acc_sa1, tr_cir, tr_gender, tr_sprm;
RadioButton rd_prm, rd_mat, rd_ann, rd_sa, rd_male, rd_female;
CheckBox chk_addb, chk_tr, chk_pwb, chk_addb_845, chk_ab_845, chk_cir;
Button btn_calc, btn_rep;
ImageButton btn_recalc, btn_recalc1, btn_ch_repval, btn_send_msg;
ScrollView sv1;
ProgressDialog pd;
ProgressBar pb;

然后我在onCreate（）方法中调用setReference（）方法：

 public void setReference() {
    try {
        sv1 = (ScrollView) findViewById(R.id.sv);
        hsv_repInput = (HorizontalScrollView) findViewById(R.id.hsvReportInput);

        ibRep = (ImageButton) findViewById(R.id.btnReport);
        ibRep2 = (ImageButton) findViewById(R.id.btnReport2);

        sp_ttl = (Spinner) findViewById(R.id.spTitle);
        spOpt189 = (Spinner) findViewById(R.id.sp189option);
        spPlans_List = (Spinner) findViewById(R.id.spPlansList);
        sp_ann_pmt_mode = (Spinner) findViewById(R.id.spAnnuityPmtMode);
        sp_834_opt = (Spinner) findViewById(R.id.sp834option);
        sp_term = (Spinner) findViewById(R.id.spTerm);
        sp_ppt = (Spinner) findViewById(R.id.spPPT);
        sMode = (Spinner)findViewById(R.id.spMode);

        llsur_ben = (LinearLayout) findViewById(R.id.llSurBen);
        llPlan_List = (LinearLayout) findViewById(R.id.llPlanList);
        ll_Mat = (LinearLayout) findViewById(R.id.llMaturity);
        ll_Trm = (LinearLayout) findViewById(R.id.llTerm);
        ll_ann = (LinearLayout) findViewById(R.id.llAnn);
        ll_output = (LinearLayout) findViewById(R.id.llOutput);
        ll_bas_input = (LinearLayout) findViewById(R.id.llBasicInput);
        ll_calc_ch = (LinearLayout) findViewById(R.id.llCalcChoice);
        ll_sa_b_fab = (LinearLayout) findViewById(R.id.llsabfab);
        ll_xtra_ben = (LinearLayout) findViewById(R.id.llExtraBenefit);
        ll = (LinearLayout) findViewById(R.id.content_prem_calculator);
        ll_temp1 = (LinearLayout) findViewById(R.id.lltemp1);
        ll_temp2 = (LinearLayout) findViewById(R.id.lltemp2);

        hdMoney_Back = (TextView) findViewById(R.id.hdMoneyBack);
        tvSur_ben1 = (TextView) findViewById(R.id.sb1);
        tvSur_ben2 = (TextView) findViewById(R.id.sb2);
        tvSur_ben3 = (TextView) findViewById(R.id.sb3);
        tvSur_ben4 = (TextView) findViewById(R.id.sb4);
        tvSur_ben5 = (TextView) findViewById(R.id.sb5);
        tvSur_ben6 = (TextView) findViewById(R.id.sb6);
        tvSur_ben_amt1 = (TextView) findViewById(R.id.sba1);
        tvSur_ben_amt2 = (TextView) findViewById(R.id.sba2);
        tvSur_ben_amt3 = (TextView) findViewById(R.id.sba3);
        tvSur_ben_amt4 = (TextView) findViewById(R.id.sba4);
        tvSur_ben_amt5 = (TextView) findViewById(R.id.sba5);
        tvPrm_Hdr = (TextView) findViewById(R.id.tvPremiumHeader);
        tv_hd_mat = (TextView) findViewById(R.id.hdMaturity);
        tv_mode = (TextView) findViewById(R.id.tvMode);
        tv_ermsg1 = (TextView) findViewById(R.id.tvErrMsg1);
        tv_ermsg2 = (TextView) findViewById(R.id.tvErrMsg2);
        tv_ermsg3 = (TextView) findViewById(R.id.tvErrMsg3);
        tv_ermsg4 = (TextView) findViewById(R.id.tvErrMsg4);
        tv_pr_age = (TextView) findViewById(R.id.tvPrAge);
        tv_ext_ben = (TextView) findViewById(R.id.tvExBen);
        tv_disclaimer = (TextView) findViewById(R.id.tvDisclaimer);
        tv_term = (TextView) findViewById(R.id.tvTerm);
        tv_defper = (TextView) findViewById(R.id.tvDefper);
        tv_maturity = (TextView) findViewById(R.id.tvRetAtMAt);
        tv_spp_amt = (TextView) findViewById(R.id.tvSppAmt);
        tv_la_amt = (TextView) findViewById(R.id.tvLaAmt);
        tv_sa_amt = (TextView) findViewById(R.id.tvSaAmt);
        tv_mat_sa_per = (TextView) findViewById(R.id.matSaPer);
        tv_sa_per_amt = (TextView) findViewById(R.id.tvsaPer);
        tv_bonus = (TextView) findViewById(R.id.tvBonus);
        tv_fab = (TextView) findViewById(R.id.tvFab);
        tv_sa = (TextView) findViewById(R.id.tvsa);
        tv_sa1 = (TextView) findViewById(R.id.tvSa1);
        tv_mat_sa = (TextView) findViewById(R.id.matSa);

        tv_age_op = (TextView) findViewById(R.id.tvAgeOp);
        tv_term_op = (TextView) findViewById(R.id.tvTermOp);
        tv_ppt = (TextView) findViewById(R.id.tvPPT);
        tv_ch_amt = (TextView) findViewById(R.id.tvChoiceAmt);
        tv_pl_sel = (TextView) findViewById(R.id.tvPlanSelected);
        tv_tax1 = (TextView) findViewById(R.id.tvTax1);

        tv_ann_op = (TextView) findViewById(R.id.tAnnOption);
        tv_ann_pr = (TextView) findViewById(R.id.tannPrem);
        tv_y_ann = (TextView) findViewById(R.id.tYlyAnn);
        tv_h_ann  = (TextView) findViewById(R.id.tHlyAnn);
        tv_q_ann = (TextView) findViewById(R.id.tQlyAnn);
        tv_m_ann = (TextView) findViewById(R.id.tMlyAnn);
        tv_y_gp = (TextView) findViewById(R.id.ygp);
        tv_hy_gp = (TextView) findViewById(R.id.hygp);
        tv_q_gp = (TextView) findViewById(R.id.qgp);
        tv_m_gp = (TextView) findViewById(R.id.mgp);
        tv_d_gp = (TextView) findViewById(R.id.dgp);
        tv_ytx1 = (TextView) findViewById(R.id.ytx1);
        tv_htx1 = (TextView) findViewById(R.id.hytx1);
        tv_qtx1 = (TextView) findViewById(R.id.qtx1);
        tv_mtx1 = (TextView) findViewById(R.id.mtx1);
        tv_dtx1 = (TextView) findViewById(R.id.dtx1);
        tv_ytx2 = (TextView) findViewById(R.id.ytx2);
        tv_htx2 = (TextView) findViewById(R.id.hytx2);
        tv_qtx2 = (TextView) findViewById(R.id.qtx2);
        tv_mtx2 = (TextView) findViewById(R.id.mtx2);
        tv_dtx2 = (TextView) findViewById(R.id.dtx2);

        tv_ytot1 = (TextView) findViewById(R.id.ytot1);
        tv_htot1 = (TextView)findViewById(R.id.hytot1);
        tv_qtot1 = (TextView)findViewById(R.id.qtot1);
        tv_mtot1 = (TextView)findViewById(R.id.mtot1);
        tv_dtot1 =(TextView)findViewById(R.id.dtot1);

        tv_ytot2 = (TextView) findViewById(R.id.ytot2);
        tv_htot2 = (TextView)findViewById(R.id.hytot2);
        tv_qtot2 = (TextView)findViewById(R.id.qtot2);
        tv_mtot2 = (TextView)findViewById(R.id.mtot2);
        tv_dtot2 =(TextView)findViewById(R.id.dtot2);
        tv_ytpp = (TextView) findViewById(R.id.yTotPremPaid);
        tv_htpp = (TextView) findViewById(R.id.hyTotPremPaid);
        tv_qtpp = (TextView) findViewById(R.id.qTotPremPaid);
        tv_mtpp = (TextView) findViewById(R.id.mTotPremPaid);

        tv42 = (TextView) findViewById(R.id.t42);
        tv_tpp = (TextView) findViewById(R.id.tvtpp);
        tv_xrisk_cover = (TextView) findViewById(R.id.tvExtraRiskCover);
        tv_mb_title = (TextView) findViewById(R.id.tvMoneyBackTitle);
        tv_mat_disclaimer = (TextView) findViewById(R.id.tvMatDisclaimer);
        tv_prm_disclaimer = (TextView) findViewById(R.id.tvPrmDisclaimer);
        tv_ch_repval = (TextView) findViewById(R.id.txtChRepValues);
        tv_834_opt = (TextView) findViewById(R.id.tv834Option);
        tv_send_msg = (TextView) findViewById(R.id.txtSendMessage);

        btn_ch_repval =(ImageButton) findViewById(R.id.btnChRepValues);
        btn_send_msg = (ImageButton) findViewById(R.id.btnSendMessage);

        trPlan_List = (TableRow) findViewById(R.id.trPlanList);
        trAnnOpt = (TableRow) findViewById(R.id.trAnnOption);
        trAnOptHd = (TableRow) findViewById(R.id.trAnnOptHd);
        tr834Opt = (TableRow) findViewById(R.id.tr834Option);
        tr834Opt_Hd = (TableRow) findViewById(R.id.tr834OptHd);
        tr_acc_sa = (TableRow) findViewById(R.id.trAccSA);
        tr_acc_sa1 = (TableRow) findViewById(R.id.trAccSA1);
        tr_trsa = (TableRow) findViewById(R.id.trTRSA);
        tr_pwb = (TableRow) findViewById(R.id.trpwb);
        tr_cir = (TableRow) findViewById(R.id.trCirSa);
        tr_tax1 = (TableRow) findViewById(R.id.trTax1);
        tr_tax2 = (TableRow) findViewById(R.id.trTax2);
        tr_netprm2 = (TableRow) findViewById(R.id.trNetPrem2);
        tr_la = (TableRow) findViewById(R.id.trLA);
        tr_ret_at_mat = (TableRow) findViewById(R.id.trRetAtMat);
        tr_spp = (TableRow) findViewById(R.id.trSpp);
        tr_sa = (TableRow) findViewById(R.id.trSa);
        tr_la1 = (TableRow) findViewById(R.id.trla1);
        tr_mathd = (TableRow) findViewById(R.id.trMathd);
        tr_mathd1 = (TableRow) findViewById(R.id.trMatHd1);
        tr_mathd2 = (TableRow) findViewById(R.id.trMatHd2);
        tr_mathd3 = (TableRow) findViewById(R.id.trMathd3);
        tr_gender = (TableRow) findViewById(R.id.trGender);

        t_ppt = (EditText) findViewById(R.id.tPPT);
        ed_Sa = (EditText) findViewById(R.id.edtSA);
        ed_Ann = (EditText) findViewById(R.id.edtAnnuity);
        ed_prm = (EditText) findViewById(R.id.edtPremium);
        ed_mat = (EditText) findViewById(R.id.edtMaturity);
        eName = (EditText) findViewById(R.id.edtName);
        ed_pr_age = (EditText) findViewById(R.id.edtPra);
        ed_asa = (EditText) findViewById(R.id.edtASA);
        ed_term = (EditText) findViewById(R.id.edtTerm);
        ed_la = (EditText) findViewById(R.id.edLA);
        ed_trsa = (EditText) findViewById(R.id.edtTRSA);
        ed_asa1 = (EditText) findViewById(R.id.edtASA1);
        ed_cirsa = (EditText) findViewById(R.id.edtCir);
        ed_annuity_premium = (EditText) findViewById(R.id.edtAnnuityPremium);

        rd_prm = (RadioButton) findViewById(R.id.rdPremium);
        rd_mat = (RadioButton) findViewById(R.id.rdMaturity);
        rd_ann = (RadioButton) findViewById(R.id.rdAnnuity);
        rd_sa = (RadioButton) findViewById(R.id.rdSA);
        rd_male = (RadioButton) findViewById(R.id.rdMale);
        rd_female = (RadioButton) findViewById(R.id.rdFemale);

        chk_addb = (CheckBox) findViewById(R.id.chkADDB);
        chk_tr = (CheckBox) findViewById(R.id.chkTR);
        chk_pwb = (CheckBox) findViewById(R.id.chkpwb);
        chk_cir = (CheckBox) findViewById(R.id.chkCir);
        chk_ab_845 = (CheckBox) findViewById(R.id.chkAB_845);
        chk_addb_845 = (CheckBox) findViewById(R.id.chkADDB_845);

        btn_calc = (Button) findViewById(R.id.btnCalc);
        btn_recalc = (ImageButton) findViewById(R.id.btnRecalc);
        btn_recalc1 = (ImageButton) findViewById(R.id.btnRecalc1);
        tv_crrep = (TextView) findViewById(R.id.txtCreateReport);
        tv_crrep2 = (TextView) findViewById(R.id.txtCreateReport2);

        pd = new ProgressDialog(this);
    }catch(Exception e){
        Toast.makeText(this, "15 sr: "+ e.toString(), Toast.LENGTH_SHORT).show();
    }
}

当然，所有变量都不是一直使用，而是被创造，引用，因此可能占用太多空间。当应用程序很小并且不依赖于这么多控制变量时，这可能是一个很好的做法。

我是否认为这是一种错误的做法导致其在某些设备上崩溃。

如果是，那么我应该在每个方法中创建控制变量，并在各个方法中设置引用。

Answer 1

应该没有问题。您只是存储已创建的对象的引用。

但在单个活动中使用大量观点可能会有问题。