清除Edittext后，焦点会更改为listview
我使用广播接收器来显示对话框。所以代码流如下：
Step1 获取requestCode值
Step2 根据此requestCode，broadCast接收器转到if或else if或else part
Step3 如果我使用某些扫描仪进入EditText（即扫描）所输入的值不匹配则显示Toast＆＃34; Item Not Available＆＃34;。
第4步一旦＆＃34;项目不可用＆＃34; toast带来了对Listview的焦点变化，这是我的问题。
Step5 再次，如果我将值传递给Scan EditText，Listview会自动点击。
所以我的问题是＆＃34;如何从Listview中移除焦点＆＃34;并将其设置为EditText（即扫描）。
供参考我将快照附加到代码段和layout.xml。请查看并删除您为何将重点放在列表视图上的建议。
.java片段
final BroadcastReceiver mBroadcastReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
if (intent != null) {
loc = mspinner.getItemAtPosition(mspinner.getSelectedItemPosition())
.toString();
final String ItemNo;
final String Desc;
final String StockUnit;
final String PickSeq;
final String qtyCount;
final String qtyonHand;
final Button mok;
final Button mcancel;
final Button mplus;
final Button mminus;
final EditText medtQtyCount;
final EditText medtItem;
final EditText medtdesc;
final EditText medtuom;
final DatabaseHandler dbHandler;
final String[] UOM = null;
int requestCode;
LayoutInflater li = LayoutInflater.from(InventoryCount.this);
View promptsView = li.inflate(R.layout.quantityupdate, null);
AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(
InventoryCount.this);
alertDialogBuilder.setView(promptsView);
//requestCode=Integer.parseInt(intent.getStringExtra("idx"));
requestCode=intent.getIntExtra("idx", -1);
// create alert dialog
final AlertDialog alertDialog = alertDialogBuilder.create();
dbHandler = new DatabaseHandler(InventoryCount.this);
medtuom = (EditText) promptsView.findViewById(R.id.edt_mseshipuom_mic);
mok = (Button) promptsView.findViewById(R.id.btn_mseshipOk_mic);
mcancel = (Button) promptsView.findViewById(R.id.btn_mseshipCancel_mic);
mplus = (Button) promptsView.findViewById(R.id.btn_mseshipIncr_mic);
mminus = (Button) promptsView.findViewById(R.id.btn_mseshipDecr_mic);
medtQtyCount = (EditText) promptsView
.findViewById(R.id.edt_shipShiped_mic);
medtdesc = (EditText) promptsView
.findViewById(R.id.edt_mseshipQtyOrd_mic);
medtItem = (EditText) promptsView
.findViewById(R.id.edt_mseshipItemNo_mic);
if (requestCode == 1) {
}
else if (requestCode == 0) {
// ItemNo
/*if (resultCode == RESULT_OK) {
Log.i("Scan resul format: ",
intent.getStringExtra("SCAN_RESULT_FORMAT"));
*/
String itNo = intent.getStringExtra("SCAN_RESULT");
dbhelper.getReadableDatabase();
MIC_Inventory mic_inventory = dbhelper.getMicInventoryDetails(
loc, itNo);
dbhelper.closeDatabase();
if (mic_inventory != null) {
loc = mspinner.getItemAtPosition(
mspinner.getSelectedItemPosition()).toString();
ItemNo = mic_inventory.getItemno();
Desc = mic_inventory.getItemdescription();
PickSeq = mic_inventory.getPickingseq();
StockUnit = mic_inventory.getStockunit();
qtyonHand = mic_inventory.getQoh();// This value gives
// QOHand
qtyCount = mic_inventory.getQc();
medtItem.setText(ItemNo);
medtdesc.setText(Desc);
medtQtyCount.setText(qtyCount);
medtuom.setText(StockUnit);
mplus.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
String a = medtQtyCount.getText().toString();
int b = Integer.parseInt(a);
b = b + 1;
a = a.valueOf(b);
medtQtyCount.setText(a);
}
});
mminus.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
int c = Integer.parseInt(medtQtyCount.getText()
.toString());
c = c - 1;
medtQtyCount.setText(new Integer(c).toString());
}
});
mok.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
/*
* UOM[mspinnerUom.getSelectedItemPosition()] =
* medtQtyCount .getText().toString();
*/
MIC_UOMInternal mic_uom = new MIC_UOMInternal();
mic_uom.setLocation(loc);
mic_uom.setItemno(ItemNo);
String updatedqtyCount = medtQtyCount.getText()
.toString();
if (!qtyCount.equals(updatedqtyCount)) {
mic_uom.setQc(Double
.parseDouble(updatedqtyCount));
mic_uom.setUom(StockUnit);
MIC_Inventory mic_Inventory = new MIC_Inventory();
mic_Inventory.setItemdescription(Desc);
mic_Inventory.setItemno(ItemNo);
mic_Inventory.setLocation(loc);
mic_Inventory.setPickingseq(PickSeq);
mic_Inventory.setQc(updatedqtyCount);
mic_Inventory.setQoh(qtyonHand);
mic_Inventory.setStockunit(StockUnit);
dbHandler.getWritableDatabase();
String result = dbHandler
.insertIntoInternal(mic_uom);
if (result.equals("success")) {
result = dbHandler.updateMIC(mic_Inventory);
}
dbHandler.closeDatabase();
}
Intent i = new Intent(InventoryCount.this,
InventoryCount.class);
i.putExtra("et", 1);
i.putExtra("LOCATION", loc);
// i.putExtra("ID", ID);
startActivity(i);
// InventoryCount.this.finish();
}
});
mcancel.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
alertDialog.cancel();
}
});
// show it
alertDialog.show();
} else {
/*
* Toast.makeText(this, "Item not available",
* Toast.LENGTH_LONG).show();
*/
toastText.setText("Item not available");
Toast toast = new Toast(getBaseContext());
toast.setGravity(Gravity.CENTER_VERTICAL, 0, 410);
toast.setDuration(Toast.LENGTH_SHORT);
toast.setView(toastLayout);
toast.show();
msearchtext.setText("");
/*msearchtext.setFocusableInTouchMode(true);
msearchtext.requestFocus();*/
/*msearchtext.setSelection(0);
lstView.setDescendantFocusability(ViewGroup.FOCUS_AFTER_DESCENDANTS);
*/msearchtext.requestFocus();
}
else if (requestCode == 2) {
}
else
{
toastText.setText("Problem in Scanning");
Toast toast = new Toast(getApplicationContext());
toast.setGravity(Gravity.CENTER_VERTICAL, 0, 410);
toast.setDuration(Toast.LENGTH_SHORT);
toast.setView(toastLayout);
toast.show();
}
}
Layout.xml
<?xml version="1.0" encoding="UTF-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@drawable/border_green"
android:descendantFocusability="beforeDescendants"
android:focusableInTouchMode="true"
android:orientation="vertical"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin" >
<TextView
android:id="@+id/txt_InvTitle"
style="@style/pageTitle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:layout_marginTop="5dp"
android:text="@string/invTitle" />
<View
android:id="@+id/txt_InvView"
android:layout_width="match_parent"
android:layout_height="2dip"
android:layout_below="@+id/txt_InvTitle"
android:layout_marginLeft="10dp"
android:layout_marginRight="10dp"
android:background="#2E9AFE" />
<LinearLayout
android:id="@+id/invLocation"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:layout_below="@+id/txt_InvView"
android:layout_marginTop="16dp" >
<TextView
android:id="@+id/txtLoc"
style="@style/textRegular"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="1"
android:gravity="left|center"
android:text="@string/location" />
<Spinner
android:id="@+id/sploc"
style="@style/SpinnerItemAppTheme"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight=".5"
android:editable="false" />
</LinearLayout>
<LinearLayout
android:id="@+id/invScanType"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@id/invLocation"
android:layout_gravity="center"
android:layout_marginBottom="3dp"
android:layout_marginLeft="3dp"
android:layout_marginTop="18dp"
android:orientation="horizontal" >
<EditText
android:id="@+id/edt_Search_mic"
style="@style/EditTextAppTheme_Scan"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="3dp"
android:layout_weight=".15"
android:gravity="center"
android:hint="@string/scan" />
<RadioGroup
android:id="@+id/radioScanBasedOn_mic"
style="@style/RadioButtonAppTheme"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal" >
<RadioButton
android:id="@+id/radioInum_mic"
style="@style/textRegular"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight=".25"
android:button="@drawable/radiobutton_selector"
android:checked="true"
android:drawablePadding="50dp"
android:paddingLeft="10dip"
android:text="@string/itemno" />
<RadioButton
android:id="@+id/radioNum_mic"
style="@style/textRegular"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="5dp"
android:button="@drawable/radiobutton_selector"
android:checked="false"
android:layout_marginRight="5dp"
android:layout_weight=".25"
android:drawablePadding="50dp"
android:paddingLeft="10dip"
android:text="@string/manfno" />
<RadioButton
android:id="@+id/radioUpc_mic"
style="@style/textRegular"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="5dp"
android:button="@drawable/radiobutton_selector"
android:checked="false"
android:layout_marginRight="5dp"
android:layout_weight=".25"
android:drawablePadding="50dp"
android:paddingLeft="10dip"
android:text="@string/upc" />
</RadioGroup>
</LinearLayout>
<HorizontalScrollView
android:id="@+id/scroll_full_mic"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_below="@+id/invScanType" >
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="fill_parent"
android:layout_marginTop="25dp"
android:orientation="vertical" >
<LinearLayout
android:id="@+id/lay_fullTitle_mic"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="#000000"
android:orientation="horizontal"
android:padding="5dp" >
<TextView
style="@style/textRegular_list"
android:layout_width="105dp"
android:layout_height="wrap_content"
android:text="@string/itemno"
android:textAppearance="?android:attr/textAppearanceSmall"
android:textStyle="bold" />
<TextView
style="@style/textRegular_list"
android:layout_width="130dp"
android:layout_height="wrap_content"
android:gravity="center|left"
android:text="@string/description"
android:textAppearance="?android:attr/textAppearanceSmall"
android:textStyle="bold" />
<TextView
style="@style/textRegular_list"
android:layout_width="140dp"
android:layout_height="wrap_content"
android:layout_marginLeft="4dp"
android:gravity="center|left"
android:text="@string/pick_seq"
android:textAppearance="?android:attr/textAppearanceSmall"
android:textStyle="bold" />
<TextView
style="@style/textRegular_list"
android:layout_width="120dp"
android:layout_height="wrap_content"
android:layout_marginLeft="4dp"
android:gravity="center|left"
android:text="@string/qoh"
android:textAppearance="?android:attr/textAppearanceSmall"
android:textStyle="bold" />
<TextView
style="@style/textRegular_list"
android:layout_width="120dp"
android:layout_height="wrap_content"
android:layout_marginLeft="4dp"
android:gravity="center|left"
android:text="@string/qc"
android:textAppearance="?android:attr/textAppearanceSmall"
android:textStyle="bold" />
<TextView
style="@style/textRegular_list"
android:layout_width="100dp"
android:layout_height="wrap_content"
android:layout_marginLeft="4dp"
android:gravity="center|left"
android:text="@string/uom"
android:textAppearance="?android:attr/textAppearanceSmall"
android:textStyle="bold" />
</LinearLayout>
<ListView
android:id="@+id/lst_msefull_mic"
android:layout_width="match_parent"
android:layout_height="match_parent"
style="@style/ListViewAppTheme.White" >
</ListView>
</LinearLayout>
</HorizontalScrollView>
<LinearLayout
android:id="@+id/lay_PO_mic"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true"
android:layout_marginBottom="41dp"
android:gravity="center_horizontal"
android:orientation="horizontal"
android:visibility="gone" >
<Button
android:id="@+id/btn_OrderLstImport_mic"
android:layout_width="100dp"
android:layout_height="100dp"
android:textSize="18dp"
android:textStyle="bold" />
<Button
android:id="@+id/btn_OrderLstExport_mic"
android:layout_width="100dp"
android:layout_height="100dp"
android:textSize="18dp"
android:textStyle="bold" />
<Button
android:id="@+id/btn_OrderLstExit_mic"
android:layout_width="100dp"
android:layout_height="100dp"
android:textSize="18dp"
android:textStyle="bold" />
</LinearLayout>
</RelativeLayout>
2 个答案:
答案 0 :(得分：0)
添加一个textwatcher来编辑文本并检查文本何时不是空白且不等于预期文本然后只切换焦点。
/ *设置Text Watcher监听器* /
yourEditText.addTextChangedListener(passwordWatcher);
并在用户输入文字后检查文字
private final TextWatcher passwordWatcher = new TextWatcher() {
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
public void onTextChanged(CharSequence s, int start, int before, int count) {
}
public void afterTextChanged(Editable s) {
if (s.length() != 0 && passwordEditText.getText().equals("Your expected text")) {
// show your toast and change focus
}
}
}
答案 1 :(得分：0)
您应该在不需要时使用setFocusable(false)使您的列表视图无法集中，当您从条形码扫描仪中正确获得响应时，您可以再次使列表视图具有可调整性。
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