我想将btn_save上的Income.java的textview1的值传递给MainActivity。并且还希望在再次传递新值时总结MainActivity.java的值请帮助我...
Income.java
public class Income extends AppCompatActivity implements AdapterView.OnItemSelectedListener,Calculator.OnDialogReturnListener,View.OnClickListener{
Spinner spinner1;
String[] name,name1;
Button btn_cancel, btn_save,acc_btn,button,updatebtn;
TextView textView1,textView2,accountTV,wantupdate,income;
//EditText textView1;
int yy,mm,dd;
private Income_class i_class;
DatabaseHandler mydb;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.income);
textView1 = (TextView) findViewById(R.id.income_tv);
textView2 = (TextView) findViewById(R.id.date_tv);
accountTV = (TextView) findViewById(R.id.acc_tv);
income = (TextView) findViewById(R.id.incometv);
wantupdate = (TextView) findViewById(R.id.notupdate);
btn_cancel = (Button) findViewById(R.id.cancel_btn);
updatebtn = (Button) findViewById(R.id.up_btn);
acc_btn = (Button) findViewById(R.id.account_btn);
btn_save = (Button) findViewById(R.id.save_btn);
button = (Button) findViewById(R.id.btn);
final AlertDialog.Builder dialog = new AlertDialog.Builder(Income.this);
final AlertDialog.Builder dialog1 = new AlertDialog.Builder(Income.this);
final AlertDialog.Builder dialog2 = new AlertDialog.Builder(Income.this);
final AlertDialog.Builder dialog3 = new AlertDialog.Builder(Income.this);
final EditText editText = new EditText(Income.this);
dialog.setView(editText);
final DatabaseHandler db = new DatabaseHandler(Income.this);
mydb = new DatabaseHandler(this);
button.setOnClickListener(this);
// for calculator
final Calculator cdd = new Calculator(Income.this);
cdd.getWindow().setType(WindowManager.LayoutParams.TYPE_SYSTEM_ALERT);
//cdd.getWindow().setBackgroundDrawable(new ColorDrawable(Color.WHITE));
cdd.setOnDialogReturnListener(this);
cdd.show();
// for displaying date
final Calendar c = Calendar.getInstance();
yy = c.get(Calendar.YEAR);
mm = c.get(Calendar.MONTH);
dd = c.get(Calendar.DAY_OF_MONTH);
//set current date into text..
textView2.setText(new StringBuilder()
//month os 0 based. Just add 1
.append(dd).append("-").append(mm + 1).append("-").append(yy));
btn_cancel.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent(Income.this,MainActivity.class);
startActivity(intent);
finish();
}
});
acc_btn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent(Income.this,Account_detail.class);
startActivity(intent);
finish();
}
});
updatebtn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
String cat = button.getText().toString();
String acc = accountTV.getText().toString();
String text = textView1.getText().toString();
if(text.equals("0")){
dialog3.setTitle("You must enter amount.");
dialog3.setPositiveButton("OK", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface ialog, int which) {
}
});
dialog3.show();
}
else if(cat.equals("Select Category")){
dialog1.setTitle("Please Select category");
dialog1.setPositiveButton("OK", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
/*Intent intent = new Intent(Income.this, Income.class);
startActivity(intent);
finish();*/
button.requestFocus();
}
});
dialog1.show();
}
else if(acc.equals("")){
dialog2.setTitle("Please Select Account");
dialog2.setPositiveButton("OK", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
acc_btn.requestFocus();
}
});
dialog2.show();
}
else {
String value = accountTV.getText().toString();
String value2 = textView1.getText().toString();
String value3 = button.getText().toString();
db.update_income(value, value2, value3);
Toast.makeText(getBaseContext(), "Updated Successfully...", Toast.LENGTH_SHORT).show();
Intent intent = new Intent(Income.this, Acc_income.class);
startActivity(intent);
finish();
}
}
});
btn_save.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
String cat = button.getText().toString();
String acc = accountTV.getText().toString();
String text = textView1.getText().toString();
if(text.equals("0")){
dialog3.setTitle("You must enter amount.");
dialog3.setPositiveButton("OK", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface ialog, int which) {
}
});
dialog3.show();
}
else if(cat.equals("Select Category")){
dialog1.setTitle("Please Select category");
dialog1.setPositiveButton("OK", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
/*Intent intent = new Intent(Income.this, Income.class);
startActivity(intent);
finish();*/
button.requestFocus();
}
});
dialog1.show();
}
else if(acc.equals("")){
dialog2.setTitle("Please Select Account");
dialog2.setPositiveButton("OK", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
acc_btn.requestFocus();
}
});
dialog2.show();
}
else {
String balance2 = textView1.getText().toString();
String name = accountTV.getText().toString();
String category = button.getText().toString();
db.income_insert(name, category, balance2);
Toast.makeText(getBaseContext(), "Account Added...",
Toast.LENGTH_SHORT).show();
}
}
});
wantupdate.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
final AlertDialog.Builder dialog = new AlertDialog.Builder(Income.this);
dialog.setTitle("Enter Income");
final EditText editText = new EditText(Income.this);
dialog.setView(editText);
dialog.setPositiveButton("OK", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
String value1 = textView1.getText().toString();
String value2 = editText.getText().toString();
if(textView1.equals("0")){
String a = editText.getText().toString();
textView1.setText(a);
}
else if(value2.equals("")){
Toast.makeText(Income.this,"Please Enter Amount.",Toast.LENGTH_LONG).show();
}
else {
int a = Integer.parseInt(value1);
int b = Integer.parseInt(value2);
int sum = a + b;
textView1.setText(Integer.toString(sum));
}
}
});
dialog.show();
}
});
Intent intent = getIntent();
accountTV.setText(intent.getStringExtra("ppp"));
}
public void addnumber(){
}
@Override
public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
String name2 = name[position];
}
@Override
public void onNothingSelected(AdapterView<?> parent) {
}
@Override
public void onReturn(String data) {
textView1.setText(data);
}
@Override
public void onClick(View v) {
/*String cat = button.getText().toString();
if(cat.equals("Select Category")){
button.setError("Please Select category");
button.requestFocus();
}
else */
final CharSequence[] items = {"Automobile", "Entertainment", "Family", "Food And Drinks", "Gasoline", "Gifts And Donations",
"Groceries", "Health And Fitness", "Housing", "Medical", "Other", "Parking", "Shopping", "Utilities"};
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle("Make your selection");
builder.setItems(items, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int item) {
button.setText(items[item]);
}
});
AlertDialog alert = builder.create();
alert.show();
}
@Override
public void onBackPressed() {
super.onBackPressed();
Intent intent = new Intent(Income.this,MainActivity.class);
startActivity(intent);
}
MainActivity.java
public class MainActivity extends AppCompatActivity {
Button expance,income,account,budget,calander,report,more,transfer;
TextView incomeTv;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
incomeTv = (TextView)findViewById(R.id.incometv);
expance = (Button)findViewById(R.id.button_expanse);
income = (Button)findViewById(R.id.button_income);
account = (Button)findViewById(R.id.button_account);
budget = (Button)findViewById(R.id.button_budget);
transfer = (Button)findViewById(R.id.button_moneytransfer);
calander = (Button)findViewById(R.id.button_calander);
report = (Button)findViewById(R.id.button_report);
more = (Button)findViewById(R.id.button_more);
expance.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent(MainActivity.this,Expense.class);
startActivity(intent);
finish();
}
});
income.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent(MainActivity.this,Income.class);
startActivity(intent);
finish();
}
});
account.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent(MainActivity.this,Account_detail.class);
startActivity(intent);
finish();
}
});
transfer.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent(MainActivity.this,Account_Transfer.class);
startActivity(intent);
finish();
}
});
budget.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent(MainActivity.this,Acc_income.class);
startActivity(intent);
finish();
}
});
calander.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent(MainActivity.this,Account_detail_2.class);
startActivity(intent);
finish();
}
});
more.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent(MainActivity.this,Update.class);
startActivity(intent);
finish();
}
});
}
答案 0 :(得分：0)
您可以使用
intent.putExtra("key", value);