我在活动中有1个按钮。我想用这个1按钮完成多项任务。
那我该怎么办?
如果我第一次按下此按钮,则它会改变2按钮
如果我按下第二次,那么它会更新我的数据
但它只是第二次工作第二次它不起作用
查看我的代码我尝试了什么
Intent extras = getIntent();
{
if (extras.hasExtra("edit")) {
if (extras.getStringExtra("edit").equals("home")) {
etCompanyName.setEnabled(false);
etWebsite.setEnabled(false);
etEmail.setEnabled(false);
etPhoneHome.setEnabled(false);
etPhonePrimary.setEnabled(false);
etAddressLine1.setEnabled(false);
etAddressLine2.setEnabled(false);
etCity.setEnabled(false);
spStates.setEnabled(false);
etZip.setEnabled(false);
spContries.setEnabled(false);
//1st time use hear
txtSave.setText(getResources().getString(R.string.label_edit));
txtClose.setText(getResources().getString(R.string.label_back));
txtSave.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
txtSave.setText(getResources().getString(R.string.label_add));
txtClose.setText(getResources().getString(R.string.label_cancel));
etCompanyName.setEnabled(true);
etWebsite.setEnabled(true);
etEmail.setEnabled(true);
etPhoneHome.setEnabled(true);
etPhonePrimary.setEnabled(true);
etAddressLine1.setEnabled(true);
etAddressLine2.setEnabled(true);
etCity.setEnabled(true);
spStates.setEnabled(true);
etZip.setEnabled(true);
spContries.setEnabled(true);
}
});
if (extras != null) {
Company value = (Company) extras.getSerializableExtra("company");
etCompanyName.setText(value.getName());
etWebsite.setText(value.getWebsite());
etEmail.setText(value.getEmail());
etPhoneHome.setText(value.getPhoneHome());
etPhonePrimary.setText(value.getPhonePrimary());
etAddressLine1.setText(value.getAddressLine1());
etAddressLine2.setText(value.getAddressLine2());
etCity.setText(value.getCity());
etZip.setText(value.getZipcode());
}
} else {
//2nd time use hear
txtSave.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Company company = new Company();
company.setName(etCompanyName.getText().toString().trim());
company.setWebsite(etWebsite.getText().toString().trim());
company.setEmail(etEmail.getText().toString().trim());
company.setPhoneHome(etPhoneHome.getText().toString().trim());
company.setPhonePrimary(etPhonePrimary.getText().toString().trim());
company.setAddressLine1(etAddressLine1.getText().toString().trim());
company.setAddressLine2(etAddressLine2.getText().toString().trim());
company.setZipcode(etZip.getText().toString().trim());
company.setCity(etCity.getText().toString().trim());
company.setState(spStates.getSelectedItem().toString());
company.setCountry(spContries.getSelectedItem().toString());
company.setDate(Util.getInstance(AddCompanyActivity.this).getCurrentDate());
long isUpdated = myDb.updateCompany(company);
if (isUpdated != -1) {
Toast.makeText(getApplicationContext(), "Company Update Successfully: " + isUpdated, Toast.LENGTH_SHORT).show();
} else {
Toast.makeText(getApplicationContext(), "Something wrong", Toast.LENGTH_SHORT).show();
}
finish();
}
});
}
}
}
你可以看到我上面的代码,我可以使用txtSave
按钮执行2任务,但它只更改了两个按钮,我将更改数据并单击按钮然后它无法执行
答案 0 :(得分:1)
尝试这种方式,首先在您的活动类文件中声明全局变量,如下所示:
int count = 0;
之后添加你的点击监听器:
yourButton.setOnClickListener(v -> {
if (count == 0) { // the first click
count++;
// do your stuff
}else { // the second click
count = 0; // initialize the count to limit the button click just for the first and the second time only
// do your stuff
}
});
答案 1 :(得分:0)
您不应为Button创建多个OnClickListener
,仅创建1并使用它
示例:
btn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if(btn.getText().equals("1")){
//perform action for 1
btn.setText("2");
//change button1 to button2
}else if(btn.getText().equals("2")){
//perform action for 2
btn.setText("3");
}
}
});
答案 2 :(得分:0)
您可以将单onclicklistener
与switch case
btn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
swtich(extras.getStringExtra().toLowerCase(){
case "1":
// do something
break;
case "2":
// do something else
break;
}
});
}