因为我对android很新,所以我只是尝试学习东西。如果我问愚蠢的问题,请原谅 这就是我的Android应用程序的样子。
我添加了一个新的edittext字段,用户可以在其中添加类似(例如3%)的值,如果他喜欢的话。然后,用户输入的值(例如3%)应使用结果TextView中的总值进行计算,该值需要显示在“子值”文本视图字段中。例如,如果最终结果文本视图中的总值为1000且用户输入为3%,则“子值”字段将显示30.然后“最终结果”需要更新为1030.请帮我解决此问题。提前致谢
public class AddTwo extends AppCompatActivity {
EditText edit1, edit2, edit3;
EditText edit4, edit5, edit6;
TextView textViewSub1, textViewSub2, textViewSub3, textViewSub4, textViewResult;
TextView nbtText;
EditText editNbt, vat;
Button btnNext;
/**
* Called when the activity is first created.
*/
@Override
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
setContentView(R.layout.activity_add_two);
btnNext = (Button) findViewById(R.id.button2);
btnNext.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
gotoNextPage();
}
private void gotoNextPage() {
Intent i = new Intent(AddTwo.this, NewClass.class);
startActivity(i);
}
});
/*Vat variables*/
editNbt = (EditText) findViewById(R.id.Edittext11);
/*First row variables*/
edit1 = (EditText) findViewById(R.id.editText1);
edit2 = (EditText) findViewById(R.id.editText2);
edit3 = (EditText) findViewById(R.id.editText3);
textViewSub1 = (TextView) findViewById(R.id.TextViewsub1);
/*Second row variables*/
edit4 = (EditText) findViewById(R.id.editText5);
edit5 = (EditText) findViewById(R.id.editText6);
edit6 = (EditText) findViewById(R.id.editText7);
textViewSub2 = (TextView) findViewById(R.id.TextViewsub2);
/*Final Total TextView variable*/
textViewResult = (TextView) findViewById(R.id.textView_result);
/*NBT value variable*/
nbtText = (TextView) findViewById(R.id.textViewNbt12);
edit1.addTextChangedListener(new LashCustomTextWatcher());
edit2.addTextChangedListener(new LashCustomTextWatcher());
edit3.addTextChangedListener(new LashCustomTextWatcher());
edit4.addTextChangedListener(new LashCustomTextWatcher());
edit5.addTextChangedListener(new LashCustomTextWatcher());
edit6.addTextChangedListener(new LashCustomTextWatcher());
textViewResult.addTextChangedListener(new LashCustomTextWatcher());
}
public class LashCustomTextWatcher implements TextWatcher {
@Override
public void beforeTextChanged(CharSequence charSequence, int i, int i1, int i2) {
}
@Override
public void onTextChanged(CharSequence charSequence, int i, int i1, int i2) {
textViewResult.setText(lashCalculate());
}
@Override
public void afterTextChanged(Editable editable) {
textViewResult.setText(lashCalculate());
}
}
public String lashCalculate() {
//declaring variables
double row1_value = 0;
double row2_value = 0;
//Optional Values
double row_nbt_value = 0;
double row1_value_new = 0;
DecimalFormat df = new DecimalFormat("0.00##");
//calculate first row
if (!edit1.getText().toString().equals("") && !edit2.getText().toString().equals("")) {
double num1 = Double.parseDouble((edit1.getText().toString()));
double num2 = Double.parseDouble((edit2.getText().toString()));
row1_value = num1 * num2;
double num3 = 0;
if (!edit3.getText().toString().equals("")) {
num3 = Double.parseDouble((edit3.getText().toString()));
row1_value = (((100 - num3) * num2) * num1) / 100;
}
textViewSub1.setText(df.format(row1_value));
}
//calculate second row
if (!edit4.getText().toString().equals("") && !edit5.getText().toString().equals("")) {
double num4 = Double.parseDouble((edit4.getText().toString()));
double num5 = Double.parseDouble((edit5.getText().toString()));
row2_value = num4 * num5;
double num6 = 0;
if (!edit6.getText().toString().equals("")) {
num6 = Double.parseDouble((edit6.getText().toString()));
row2_value = (((100 - num6) * num5) * num4) / 100;
}
textViewSub2.setText(df.format(row2_value));
}
/* ========================================================================== */
//calculate the NBT
double numNbt = 0;
if (!editNbt.getText().toString().equals("")) {
numNbt = Double.parseDouble(editNbt.getText().toString());
row_nbt_value = numNbt / 100;
if (row1_value !=0){
row1_value_new = row1_value * row_nbt_value;
}
nbtText.setText(df.format(row1_value_new));
}
return df.format(row1_value_new + row2_value);
}
}
这是我的LogCat:
09-12 09:55:51.908 1624-1624 /? I / InstallerConnection:连接...... 09-12 09:55:51.936 1624-1624 /? I / InstallerConnection:断开连接...... 09-12 09:55:51.978 1624-1624 / system_process I / InstallerConnection:连接...... 09-12 09:56:04.447 2433-2502 / com.google.android.gms I / FA-SVC:应用程序测量正在启动,版本:11055 09-12 09:56:04.530 2433-2922 / com.google.android.gms I / FA-SVC:此实例被标记为上传者 09-12 09:56:04.794 2433-2441 / com.google.android.gms W / SQLiteConnectionPool:数据库' /data/user/0/com.google.android.gms/databases/networkstatistics的SQLiteConnection对象.sqlite'被泄露了!请修复您的应用程序以正确结束正在进行的事务,并在不再需要时关闭数据库。 09-12 09:56:14.889 2433-2441 / com.google.android.gms W / SQLiteConnectionPool:数据库的SQLiteConnection对象' /data/user/0/com.google.android.gms/databases/metrics .db.16'被泄露了!请修复您的应用程序以正确结束正在进行的事务,并在不再需要时关闭数据库。 09-12 09:56:14.890 2433-2441 / com.google.android.gms W / SQLiteConnectionPool:数据库的SQLiteConnection对象' /data/user/0/com.google.android.gms/databases/help_responses .db.18'被泄露了!请修复您的应用程序以正确结束正在进行的事务,并在不再需要时关闭数据库。 09-12 09:56:14.892 2433-2441 / com.google.android.gms W / SQLiteConnectionPool:数据库的SQLiteConnection对象' /data/user/0/com.google.android.gms/databases/auto_complete_suggestions .db的'被泄露了!请修复您的应用程序以正确结束正在进行的事务,并在不再需要时关闭数据库。
答案 0 :(得分:0)
{{1}}
答案 1 :(得分:0)
这是XML代码
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<!--<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent">-->
<TextView
android:id="@+id/textView3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_marginEnd="12dp"
android:layout_marginRight="12dp"
android:layout_toLeftOf="@+id/textView"
android:layout_toStartOf="@+id/textView"
android:ems="3"
android:gravity="center"
android:text="Col 1"
android:textAppearance="?android:textAppearanceMedium"
android:textStyle="bold" />
<EditText
android:id="@+id/editText1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignEnd="@+id/editText5"
android:layout_alignRight="@+id/editText5"
android:layout_below="@+id/textView4"
android:layout_marginTop="19dp"
android:layout_toLeftOf="@+id/editText2"
android:ems="3"
android:inputType="numberDecimal"
android:layout_alignLeft="@+id/editText5"
android:layout_alignStart="@+id/editText5" />
<EditText
android:id="@+id/editText2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:ems="3"
android:inputType="numberDecimal"
android:layout_alignBaseline="@+id/editText1"
android:layout_alignBottom="@+id/editText1"
android:layout_toRightOf="@+id/textView3"
android:layout_toEndOf="@+id/textView3" />
<TextView
android:id="@+id/textView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_marginEnd="13dp"
android:layout_marginRight="13dp"
android:layout_toLeftOf="@+id/editText3"
android:layout_toStartOf="@+id/editText3"
android:ems="4"
android:gravity="center"
android:text="Col 2"
android:textAppearance="?android:textAppearanceMedium"
android:textStyle="bold" />
<TextView
android:id="@+id/textView_result"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="63dp"
android:text="Final Result"
android:textColor="#232123"
android:textSize="18dip"
android:layout_above="@+id/button2"
android:layout_alignRight="@+id/TextViewsub2"
android:layout_alignEnd="@+id/TextViewsub2"
android:layout_marginRight="17dp"
android:layout_marginEnd="17dp" />
<TextView
android:id="@+id/textView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_toLeftOf="@+id/textView4"
android:layout_toStartOf="@+id/textView4"
android:ems="4"
android:gravity="center"
android:text="Col 3"
android:textAppearance="?android:textAppearanceMedium"
android:textStyle="bold" />
<EditText
android:id="@+id/editText3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="@+id/editText2"
android:layout_alignBottom="@+id/editText2"
android:layout_toLeftOf="@+id/TextViewsub1"
android:layout_toStartOf="@+id/TextViewsub1"
android:ems="4"
android:hint=""
android:inputType="numberDecimal" />
<TextView
android:id="@+id/textView4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_toEndOf="@+id/editText3"
android:layout_toRightOf="@+id/editText3"
android:ems="4"
android:text="Sub Total"
android:textAppearance="?android:textAppearanceMedium"
android:textStyle="bold" />
<TextView
android:id="@+id/TextViewsub1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBottom="@+id/editText3"
android:layout_alignParentEnd="true"
android:layout_alignParentRight="true"
android:layout_alignTop="@+id/editText3"
android:layout_marginEnd="14dp"
android:layout_marginRight="14dp"
android:ems="3"
android:gravity="bottom"
android:hint="Sub 1"
android:inputType="textPersonName" />
<TextView
android:id="@+id/textView5"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBottom="@+id/editText1"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_alignTop="@+id/editText1"
android:ems="2"
android:gravity="bottom"
android:text="First Row"
android:textAppearance="?android:textAppearanceMedium"
android:textStyle="bold" />
<TextView
android:id="@+id/textView6"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_below="@+id/editText1"
android:layout_marginTop="13dp"
android:ems="3"
android:text="Second Row"
android:textAppearance="?android:textAppearanceMedium"
android:textStyle="bold" />
<EditText
android:id="@+id/editText5"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:ems="3"
android:hint=""
android:inputType="textPersonName"
android:layout_alignBottom="@+id/textView6"
android:layout_toLeftOf="@+id/editText6"
android:layout_toStartOf="@+id/editText6" />
<EditText
android:id="@+id/editText6"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignEnd="@+id/editText2"
android:layout_alignLeft="@+id/editText2"
android:layout_alignRight="@+id/editText2"
android:layout_alignStart="@+id/editText2"
android:layout_alignTop="@+id/textView6"
android:ems="3"
android:hint=""
android:inputType="textPersonName" />
<EditText
android:id="@+id/editText7"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="@+id/editText5"
android:layout_alignBottom="@+id/editText5"
android:layout_alignLeft="@+id/editText3"
android:layout_alignStart="@+id/editText3"
android:layout_toLeftOf="@+id/TextViewsub2"
android:ems="3"
android:hint=""
android:inputType="textPersonName" />
<TextView
android:id="@+id/TextViewsub2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBottom="@+id/editText7"
android:layout_alignEnd="@+id/TextViewsub1"
android:layout_alignLeft="@+id/TextViewsub1"
android:layout_alignRight="@+id/TextViewsub1"
android:layout_alignStart="@+id/TextViewsub1"
android:layout_alignTop="@+id/editText7"
android:ems="3"
android:gravity="bottom"
android:hint="Sub 2"
android:inputType="textPersonName" />
<Button
android:id="@+id/button2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="15dp"
android:text="next Page"
android:layout_alignParentBottom="true"
android:layout_alignLeft="@+id/textView_result"
android:layout_alignStart="@+id/textView_result" />
<TextView
android:id="@+id/textView9"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Total Value"
android:textAppearance="?android:textAppearanceMedium"
android:textStyle="bold"
android:layout_alignBaseline="@+id/textView_result"
android:layout_alignBottom="@+id/textView_result"
android:layout_toLeftOf="@+id/editText7"
android:layout_toStartOf="@+id/editText7" />
<TextView
android:id="@+id/textView11"
android:inputType="textMultiLine"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="65dp"
android:text="Add Value (Optional)"
android:layout_below="@+id/editText5"
android:layout_alignRight="@+id/textView"
android:layout_alignEnd="@+id/textView" />
<EditText
android:id="@+id/editText9"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBottom="@+id/textView11"
android:layout_alignLeft="@+id/editText7"
android:layout_alignStart="@+id/editText7"
android:ems="10"
android:inputType="textPersonName"
android:hint="%"
android:gravity="center"
android:layout_toLeftOf="@+id/TextViewsub2"
android:layout_toStartOf="@+id/TextViewsub2" />
<TextView
android:id="@+id/editText13"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:ems="10"
android:inputType="textPersonName"
android:hint="Sub value"
android:gravity="bottom"
android:layout_alignTop="@+id/editText9"
android:layout_alignParentRight="true"
android:layout_alignParentEnd="true"
android:layout_toRightOf="@+id/editText9"
android:layout_toEndOf="@+id/editText9"
android:layout_alignBottom="@+id/editText9" />
</RelativeLayout>
<!--</RelativeLayout>-->