我想创建一个可以收集人们信息并添加到数据库中的应用程序。但是我将选定的radiobutton值插入数据库时遇到了一些问题。
public class MainActivity extends Activity {
SQLiteDatabase pf;
TableRow tablerow;
TextView t,t1,t2,t3,t4,t5;
String first_name,last_name;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
pf=openOrCreateDatabase("Profile",MODE_PRIVATE,null);
pf.execSQL("CREATE TABLE IF NOT EXISTS Persone(first_name VARCHAR,last_name VARCHAR,Usergender VARCHAR);");
}
public void RadioButtonClicked(View view) {
//This variable will store whether the user was male or female
String userGender="";
// Check that the button is now checked?
boolean checked = ((RadioButton) view).isChecked();
// Check which radio button was clicked
switch(view.getId()) {
case R.id.radio_female:
if (checked)
userGender = "female";
break;
case R.id.radio_male:
if (checked)
userGender = "male";
break;
}
pf.execSQL("INSER INTO Persone VALUES('"+userGender+"');");
}
public void add(View view){
EditText fn = (EditText)findViewById(R.id.first_name);
EditText ln = (EditText)findViewById(R.id.last_name);
first_name=fn.getText().toString();
last_name =ln.getText().toString();
pf.execSQL("INSERT INTO Persone VALUES('"+first_name+"','"+last_name+"');");
}
public void show(View view){
Cursor c = pf.rawQuery("SELECT * FROM Persone", null);
int count = c.getCount();
c.moveToFirst();
TableLayout tablelayout = new TableLayout(getApplicationContext());
tablelayout.setVerticalScrollBarEnabled(true);
TableRow tablerow;
TextView t,t1,t2,t3,t4,t5;
tablerow = new TableRow(getApplicationContext());
t = new TextView(getApplicationContext());
t.setText("First Name");
t.setTextColor(Color.RED);
t.setTypeface(null,Typeface.BOLD);
t.setPadding(20,20,20,20);
tablerow.addView(t);
t3 = new TextView(getApplicationContext());
t3.setText("Last Name");
t3.setTextColor(Color.RED);
t3.setTypeface(null,Typeface.BOLD);
t3.setPadding(20,20,20,20);
tablerow.addView(t3);
t4 = new TextView(getApplicationContext());
t4.setText("Gender");
t4.setTextColor(Color.RED);
t4.setTypeface(null,Typeface.BOLD);
t4.setPadding(20,20,20,20);
tablerow.addView(t4);
tablelayout.addView(tablerow);
for(Integer j = 0;j<count;j++)
{
tablerow = new TableRow(getApplicationContext());
t1 = new TextView(getApplicationContext());
t1.setText(c.getString(c.getColumnIndex("first_name")));
t1.setPadding(20, 20, 20, 20);
t2 = new TextView(getApplicationContext());
t2.setText(c.getString(c.getColumnIndex("last_name")));
t2.setPadding(20, 20, 20, 20);
t5 = new TextView(getApplicationContext());
t5.setText(c.getString(c.getColumnIndex("userGender")));
t5.setPadding(20, 20, 20, 20);
tablerow.addView(t1);
tablerow.addView(t2);
tablerow.addView(t5);
tablelayout.addView(tablerow);
c.moveToNext();
}
setContentView(tablelayout);
pf.close();
}
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context="com.example.mythirdapp.MainActivity" >
<TextView
android:id="@+id/textView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/textView1"
android:layout_below="@+id/textView1"
android:layout_marginTop="14dp"
android:text="@string/last_name"
android:textAppearance="?android:attr/textAppearanceMedium" />
<EditText
android:id="@+id/first_name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="@+id/textView1"
android:layout_alignBottom="@+id/textView1"
android:layout_alignParentRight="true"
android:layout_toRightOf="@+id/textView1"
android:ems="10"
android:inputType="textPersonName" >
<requestFocus android:layout_width="match_parent" />
</EditText>
<TextView
android:id="@+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:layout_marginTop="14dp"
android:text="@string/first_name"
android:textAppearance="?android:attr/textAppearanceMedium" />
<Button
android:id="@+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true"
android:layout_marginBottom="16dp"
android:onClick="add"
android:text="@string/add" />
<Button
android:id="@+id/Button01"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="@+id/button1"
android:layout_alignBottom="@+id/button1"
android:layout_alignRight="@+id/last_name"
android:onClick="show"
android:text="@string/show" />
<EditText
android:id="@+id/last_name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/first_name"
android:layout_below="@+id/textView1"
android:ems="10"
android:inputType="textPersonName" />
<TextView
android:id="@+id/textView3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/textView2"
android:layout_below="@+id/last_name"
android:layout_marginTop="14dp"
android:text="@string/gender"
android:textAppearance="?android:attr/textAppearanceMedium" />
<RadioGroup
android:id="@+id/radio_gender"
android:layout_width="wrap_content"
android:layout_height="fill_parent"
android:layout_alignRight="@+id/Button01"
android:layout_alignTop="@+id/textView3"
android:layout_toRightOf="@+id/button1" >
<RadioButton
android:id="@+id/radio_female"
android:text="@string/radio_female"
android:onClick="RadioButtonClicked" />
<RadioButton
android:id="@+id/radio_male"
android:text="@string/radio_male"
android:onClick="RadioButtonClicked"/>
</RadioGroup>
</RelativeLayout>
我想获取所选单选按钮的值并将其添加到数据库中。但是当我运行Android模拟器和程序时，它说：
不幸的是，MyThirdApp已停止
任何人都可以帮助我吗？
logcat的：
10-02 06:36:51.319: E/SQLiteLog(1770): (1) near "INSER": syntax error
10-02 06:36:51.399: E/AndroidRuntime(1770): FATAL EXCEPTION: main
10-02 06:36:51.399: E/AndroidRuntime(1770): Process: com.example.mythirdapp, PID: 1770
10-02 06:36:51.399: E/AndroidRuntime(1770): java.lang.IllegalStateException: Could not execute method of the activity
10-02 06:36:51.399: E/AndroidRuntime(1770): at android.view.View$1.onClick(View.java:3823)
10-02 06:36:51.399: E/AndroidRuntime(1770): at android.view.View.performClick(View.java:4438)
10-02 06:36:51.399: E/AndroidRuntime(1770): at android.widget.CompoundButton.performClick(CompoundButton.java:100)
10-02 06:36:51.399: E/AndroidRuntime(1770): at android.view.View$PerformClick.run(View.java:18422)
10-02 06:36:51.399: E/AndroidRuntime(1770): at android.os.Handler.handleCallback(Handler.java:733)
10-02 06:36:51.399: E/AndroidRuntime(1770): at android.os.Handler.dispatchMessage(Handler.java:95)
10-02 06:36:51.399: E/AndroidRuntime(1770): at android.os.Looper.loop(Looper.java:136)
10-02 06:36:51.399: E/AndroidRuntime(1770): at android.app.ActivityThread.main(ActivityThread.java:5017)
10-02 06:36:51.399: E/AndroidRuntime(1770): at java.lang.reflect.Method.invokeNative(Native Method)
10-02 06:36:51.399: E/AndroidRuntime(1770): at java.lang.reflect.Method.invoke(Method.java:515)
10-02 06:36:51.399: E/AndroidRuntime(1770): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
10-02 06:36:51.399: E/AndroidRuntime(1770): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
10-02 06:36:51.399: E/AndroidRuntime(1770): at dalvik.system.NativeStart.main(Native Method)
10-02 06:36:51.399: E/AndroidRuntime(1770): Caused by: java.lang.reflect.InvocationTargetException
10-02 06:36:51.399: E/AndroidRuntime(1770): at java.lang.reflect.Method.invokeNative(Native Method)
10-02 06:36:51.399: E/AndroidRuntime(1770): at java.lang.reflect.Method.invoke(Method.java:515)
10-02 06:36:51.399: E/AndroidRuntime(1770): at android.view.View$1.onClick(View.java:3818)
10-02 06:36:51.399: E/AndroidRuntime(1770): ... 12 more
10-02 06:36:51.399: E/AndroidRuntime(1770): Caused by: android.database.sqlite.SQLiteException: near "INSER": syntax error (code 1): , while compiling: INSER INTO Persone VALUES('female');
10-02 06:36:51.399: E/AndroidRuntime(1770): at android.database.sqlite.SQLiteConnection.nativePrepareStatement(Native Method)
10-02 06:36:51.399: E/AndroidRuntime(1770): at android.database.sqlite.SQLiteConnection.acquirePreparedStatement(SQLiteConnection.java:889)
10-02 06:36:51.399: E/AndroidRuntime(1770): at android.database.sqlite.SQLiteConnection.prepare(SQLiteConnection.java:500)
10-02 06:36:51.399: E/AndroidRuntime(1770): at android.database.sqlite.SQLiteSession.prepare(SQLiteSession.java:588)
10-02 06:36:51.399: E/AndroidRuntime(1770): at android.database.sqlite.SQLiteProgram.<init>(SQLiteProgram.java:58)
10-02 06:36:51.399: E/AndroidRuntime(1770): at android.database.sqlite.SQLiteStatement.<init>(SQLiteStatement.java:31)
10-02 06:36:51.399: E/AndroidRuntime(1770): at android.database.sqlite.SQLiteDatabase.executeSql(SQLiteDatabase.java:1672)
10-02 06:36:51.399: E/AndroidRuntime(1770): at android.database.sqlite.SQLiteDatabase.execSQL(SQLiteDatabase.java:1603)
10-02 06:36:51.399: E/AndroidRuntime(1770): at com.example.mythirdapp.MainActivity.RadioButtonClicked(MainActivity.java:56)
10-02 06:36:51.399: E/AndroidRuntime(1770): ... 15 more
答案 0 :(得分：0)
嗨，没问题：
首先添加：
android:onClick="RadioButtonClicked" >
你的男性和女性radioGroup子元素下面如下：
android:id="@+id/radio_female"
android:text="@string/radio_female"
android:onClick="RadioButtonClicked"
现在，完成后，在您的MainActivity中添加以下代码：
//Note the name of the method must match the xml onClick value in this case 'RadioButtonClicked'
public void RadioButtonClicked(View view) {
//This variable will store whether the user was male or female
String userGender="";
// Check that the button is now checked?
boolean checked = ((RadioButton) view).isChecked();
// Check which radio button was clicked
switch(view.getId()) {
case R.id.radio_female:
if (checked)
userGender = "female";
break;
case R.id.radio_male:
if (checked)
userGender = "male";
break;
}
//Now insert it into your database using userGender instead of gender
pf.execSQL....+userGender
}
答案 1 :(得分：-1)
您将INSERT拼写错误到RadioButtonClicked