跳过了 148 帧！应用程序可能在其主线程 android 上做了太多工作？

Question

我正在以编程方式创建大量 edittext 和 texviews，并将它们放在 tablelayout 中。 这是我的代码

private EditText[] etAgreedVolume, etAgreedSaleParty, etAgreedSalesMgr;

private void createOrderTable(ArrayList<POJOOrder> orderList) {
    etAgreedVolume = new EditText[orderList.size()];
    etAgreedSaleParty = new EditText[orderList.size()];
    etAgreedSalesMgr = new EditText[orderList.size()];
    int maxLength = 3;
    InputFilter[] FilterArray = new InputFilter[1];
    FilterArray[0] = new InputFilter.LengthFilter(maxLength);

    for (int i = 0; i < orderList.size(); i++) {
        TableRow tableRow = new TableRow(getActivity());
        tableRow.setLayoutParams(new TableLayout.LayoutParams(TableLayout.LayoutParams.WRAP_CONTENT, TableLayout.LayoutParams.WRAP_CONTENT));

        TextView tvItem = new TextView(getActivity());
        tvItem.setLayoutParams(new TableRow.LayoutParams(TableRow.LayoutParams.WRAP_CONTENT, TableRow.LayoutParams.MATCH_PARENT));
        tvItem.setText(orderList.get(i).getBrandWith_SKU());
        tvItem.setTextColor(Color.parseColor("#2E3B41"));
        tvItem.setGravity(Gravity.CENTER);
        tvItem.setPadding(10, 10, 10, 10);
        tvItem.setBackgroundResource(R.drawable.rectangle_grey);

        TextView tvPlannedVolume = new TextView(getActivity());
        tvPlannedVolume.setLayoutParams(new TableRow.LayoutParams(TableRow.LayoutParams.WRAP_CONTENT, TableRow.LayoutParams.MATCH_PARENT));
        tvPlannedVolume.setText(orderList.get(i).getPlannedVolume() + " CS");
        tvPlannedVolume.setTextColor(Color.parseColor("#2E3B41"));
        tvPlannedVolume.setGravity(Gravity.CENTER);
        tvPlannedVolume.setPadding(10, 10, 10, 10);
        tvPlannedVolume.setBackgroundResource(R.drawable.rectangle_grey);

        LinearLayout linearLayout1 = new LinearLayout(getActivity());
        linearLayout1.setLayoutParams(new TableRow.LayoutParams(TableRow.LayoutParams.MATCH_PARENT, TableRow.LayoutParams.MATCH_PARENT));
        linearLayout1.setOrientation(LinearLayout.HORIZONTAL);

        TextView tvPlannedSalesParty = new TextView(getActivity());
        tvPlannedSalesParty.setLayoutParams(new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.MATCH_PARENT, 1f));
        tvPlannedSalesParty.setText(orderList.get(i).getPlannedSalesPromoParty() + "");
        tvPlannedSalesParty.setTextColor(Color.parseColor("#2E3B41"));
        tvPlannedSalesParty.setGravity(Gravity.CENTER);
        tvPlannedSalesParty.setPadding(10, 10, 10, 10);
        tvPlannedSalesParty.setBackgroundResource(R.drawable.rectangle_grey);

        TextView tvPlannedSalesMgr = new TextView(getActivity());
        tvPlannedSalesMgr.setLayoutParams(new TableRow.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.MATCH_PARENT, 1f));
        tvPlannedSalesMgr.setText(orderList.get(i).getPlannedSalesPromoMgr() + "");
        tvPlannedSalesMgr.setTextColor(Color.parseColor("#2E3B41"));
        tvPlannedSalesMgr.setGravity(Gravity.CENTER);
        tvPlannedSalesMgr.setPadding(10, 10, 10, 10);
        tvPlannedSalesMgr.setBackgroundResource(R.drawable.rectangle_grey);

        linearLayout1.addView(tvPlannedSalesParty);
        linearLayout1.addView(tvPlannedSalesMgr);

        etAgreedVolume[i] = new EditText(getActivity());
        etAgreedVolume[i].setLayoutParams(new TableRow.LayoutParams(TableRow.LayoutParams.WRAP_CONTENT, TableRow.LayoutParams.MATCH_PARENT));
        etAgreedVolume[i].setTextColor(ContextCompat.getColor(getActivity(), android.R.color.black));
        etAgreedVolume[i].setGravity(Gravity.CENTER);
        etAgreedVolume[i].setHintTextColor(Color.parseColor("#888888"));
        etAgreedVolume[i].setHint("0");
        etAgreedVolume[i].setPadding(10, 10, 10, 10);
        etAgreedVolume[i].setBackgroundResource(R.drawable.rectangle_grey);
        etAgreedVolume[i].setInputType(InputType.TYPE_CLASS_NUMBER);
        etAgreedVolume[i].addTextChangedListener(watcherAgreedVolume);
        etAgreedVolume[i].setFilters(FilterArray);

        LinearLayout linearLayout2 = new LinearLayout(getActivity());
        linearLayout2.setLayoutParams(new TableRow.LayoutParams(TableRow.LayoutParams.MATCH_PARENT, TableRow.LayoutParams.MATCH_PARENT));
        linearLayout2.setOrientation(LinearLayout.HORIZONTAL);

        etAgreedSaleParty[i] = new EditText(getActivity());
        etAgreedSaleParty[i].setLayoutParams(new TableRow.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.MATCH_PARENT, 1f));
        etAgreedSaleParty[i].setTextColor(ContextCompat.getColor(getActivity(), android.R.color.black));
        etAgreedSaleParty[i].setGravity(Gravity.CENTER);
        etAgreedSaleParty[i].setHintTextColor(Color.parseColor("#888888"));
        etAgreedSaleParty[i].setHint("0");
        etAgreedSaleParty[i].setPadding(10, 10, 10, 10);
        etAgreedSaleParty[i].setBackgroundResource(R.drawable.rectangle_grey);
        etAgreedSaleParty[i].setInputType(InputType.TYPE_CLASS_NUMBER);
        etAgreedSaleParty[i].addTextChangedListener(watcherAgreedVolume);
        etAgreedSaleParty[i].setFilters(FilterArray);

        etAgreedSalesMgr[i] = new EditText(getActivity());
        etAgreedSalesMgr[i].setLayoutParams(new TableRow.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.MATCH_PARENT, 1f));
        etAgreedSalesMgr[i].setTextColor(ContextCompat.getColor(getActivity(), android.R.color.black));
        etAgreedSalesMgr[i].setGravity(Gravity.CENTER);
        etAgreedSalesMgr[i].setPadding(10, 10, 10, 10);
        etAgreedSalesMgr[i].setHintTextColor(Color.parseColor("#888888"));
        etAgreedSalesMgr[i].setHint("0");
        etAgreedSalesMgr[i].setBackgroundResource(R.drawable.rectangle_grey);
        etAgreedSalesMgr[i].setInputType(InputType.TYPE_CLASS_NUMBER);
        etAgreedSalesMgr[i].addTextChangedListener(watcherAgreedVolume);
        etAgreedSalesMgr[i].setFilters(FilterArray);

        linearLayout2.addView(etAgreedSaleParty[i]);
        linearLayout2.addView(etAgreedSalesMgr[i]);

        tableRow.addView(tvItem);
        tableRow.addView(tvPlannedVolume);
        tableRow.addView(linearLayout1);
        tableRow.addView(etAgreedVolume[i]);
        tableRow.addView(linearLayout2);

        tableLayout.addView(tableRow);
    }
}

我的应用程序的这个页面变得太慢了。有时甚至会由于繁重的工作而发生 ANR。 我怎样才能使它顺利。

Answer 1

选项 1

创建一个AsyncTask并在那里进行所有处理，最后在AsyncTask的onPostExecute中设置布局元素。此外，您可能希望在执行AsyncTask 期间显示ProgressBar，并在onPostExecute 中将其关闭。

向下滚动到AsyncTask documentation 中的副标题“The 4 steps”，以更好地了解此解决方案。

选项 2

创建一个包含 TableRow 及其所有子项的 XML 文件（例如 myTableRow.xml），设置所有公共参数，即不依赖于 iterator integer i 的参数。所以基本上你正在创建一个所有人都通用的TableRow 模板。

然后在for Loop 中你剩下要做的就是：为每次迭代膨胀myTableRow.xml，设置剩余参数（依赖于i），最后将其添加到tableLayout。

注意：尽管它们依赖于i，但应该可以将您的EditText 视图etAgreedVolume[i]、etAgreedSaleParty[i] 和etAgreedSalesMgr[i] 添加到XML 文件（即您的TableRow 模板）中。我建议您通过简单地创建（标准）EditText 视图来做到这一点，然后一旦您膨胀了 TableRow，您就可以检索这些 EditTexts 并将它们添加到数组中。

我不能保证“选项 2”会运行得更快或更流畅，但是，在大多数情况下，膨胀布局比使用硬编码 java 创建布局更快。

Answer 2

必须使用 listView 来创建视图。 Tablelayout 无法容纳这么大的数据。

Answer 3

更新您对单独 Uithread 的看法 示例：

private void runThread() {

new Thread() {
    public void run() {
        while (/*your condition*/) {
            try {
                runOnUiThread(new Runnable() {

                    @Override
                    public void run() {
                        //update your views here
                    }
                });

            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
    }
}.start();
}

如果你更新你的视图，在你的情况下，主线程会做很多工作，导致跳帧和 ANR