我对此并不陌生，并且不断遇到相同的错误。请帮帮我。这是我的主要活动类，我已经搜索了很多页面，尝试了很多次，但得到了同样的错误。无法捕捉到错误
public class SQLiteExample extends Activity {
LinearLayout Linear;
SQLiteDatabase mydb;
private static String DBNAME = "PERSONS.db"; // THIS IS THE SQLITE DATABASE FILE NAME.
private static String TABLE = "MY_TABLE"; // THIS IS THE TABLE NAME
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_sqlite_example);
Linear = (LinearLayout)findViewById(R.id.linear);
Toast.makeText(getApplicationContext(), "Creating table.", Toast.LENGTH_SHORT).show();
dropTable(); // DROPPING THE TABLE.
createTable();
TextView t0 = new TextView(this);
t0.setText("This tutorial covers CREATION, INSERTION, UPDATION AND DELETION USING SQLITE DATABASES. Creating table complete........");
Linear.addView(t0);
Toast.makeText(getApplicationContext(), "Creating table complete.", Toast.LENGTH_SHORT).show();
insertIntoTable();
TextView t1 = new TextView(this);
t1.setText("Insert into table complete........");
Linear.addView(t1);
Toast.makeText(getApplicationContext(), "Insert into table complete", Toast.LENGTH_SHORT).show();
TextView t2 = new TextView(this);
t2.setText("Showing table values............");
Linear.addView(t2);
showTableValues();
Toast.makeText(getApplicationContext(), "Showing table values", Toast.LENGTH_SHORT).show();
updateTable();
TextView t3 = new TextView(this);
t3.setText("Updating table values............");
Linear.addView(t3);
Toast.makeText(getApplicationContext(), "Updating table values", Toast.LENGTH_SHORT).show();
TextView t4 = new TextView(this);
t4.setText("Showing table values after updation..........");
Linear.addView(t4);
Toast.makeText(getApplicationContext(), "Showing table values after updation.", Toast.LENGTH_SHORT).show();
showTableValues();
deleteValues();
TextView t5 = new TextView(this);
t5.setText("Deleting table values..........");
Linear.addView(t5);
Toast.makeText(getApplicationContext(), "Deleting table values", Toast.LENGTH_SHORT).show();
TextView t6 = new TextView(this);
t6.setText("Showing table values after deletion.........");
Linear.addView(t6);
Toast.makeText(getApplicationContext(), "Showing table values after deletion.", Toast.LENGTH_SHORT).show();
showTableValues();
setColor(t0);
setColor(t1);
setColor(t2);
setColor(t3);
setColor(t4);
setColor(t5);
setColor(t6);
}
// THIS FUNCTION SETS COLOR AND PADDING FOR THE TEXTVIEWS
public void setColor(TextView t){
t.setTextColor(Color.BLACK);
t.setPadding(20, 5, 0, 5);
t.setTextSize(1, 15);
}
// CREATE TABLE IF NOT EXISTS
public void createTable(){
try{
mydb = openOrCreateDatabase(DBNAME, Context.MODE_PRIVATE,null);
mydb.execSQL("CREATE TABLE IF NOT EXISTS "+ TABLE +" (ID INTEGER PRIMARY KEY, NAME TEXT, PLACE TEXT);");
mydb.close();
}catch(Exception e){
Toast.makeText(getApplicationContext(), "Error in creating table", Toast.LENGTH_LONG);
}
}
// THIS FUNCTION INSERTS DATA TO THE DATABASE
public void insertIntoTable(){
try{
mydb = openOrCreateDatabase(DBNAME, Context.MODE_PRIVATE,null);
mydb.execSQL("INSERT INTO " + TABLE + "(NAME, PLACE) VALUES('CODERZHEAVEN','GREAT INDIA')");
mydb.execSQL("INSERT INTO " + TABLE + "(NAME, PLACE) VALUES('ANTHONY','USA')");
mydb.execSQL("INSERT INTO " + TABLE + "(NAME, PLACE) VALUES('SHUING','JAPAN')");
mydb.execSQL("INSERT INTO " + TABLE + "(NAME, PLACE) VALUES('JAMES','INDIA')");
mydb.execSQL("INSERT INTO " + TABLE + "(NAME, PLACE) VALUES('SOORYA','INDIA')");
mydb.execSQL("INSERT INTO " + TABLE + "(NAME, PLACE) VALUES('MALIK','INDIA')");
mydb.close();
}catch(Exception e){
Toast.makeText(getApplicationContext(), "Error in inserting into table", Toast.LENGTH_LONG);
}
}
// THIS FUNCTION SHOWS DATA FROM THE DATABASE
public void showTableValues(){
try{
mydb = openOrCreateDatabase(DBNAME, Context.MODE_PRIVATE,null);
Cursor allrows = mydb.rawQuery("SELECT * FROM "+ TABLE, null);
System.out.println("COUNT : " + allrows.getCount());
Integer cindex = allrows.getColumnIndex("NAME");
Integer cindex1 = allrows.getColumnIndex("PLACE");
TextView t = new TextView(this);
t.setText("========================================");
//Linear.removeAllViews();
Linear.addView(t);
if(allrows.moveToFirst()){
do{
LinearLayout id_row = new LinearLayout(this);
LinearLayout name_row = new LinearLayout(this);
LinearLayout place_row= new LinearLayout(this);
final TextView id_ = new TextView(this);
final TextView name_ = new TextView(this);
final TextView place_ = new TextView(this);
final TextView sep = new TextView(this);
String ID = allrows.getString(0);
String NAME= allrows.getString(1);
String PLACE= allrows.getString(2);
id_.setTextColor(Color.RED);
id_.setPadding(20, 5, 0, 5);
name_.setTextColor(Color.RED);
name_.setPadding(20, 5, 0, 5);
place_.setTextColor(Color.RED);
place_.setPadding(20, 5, 0, 5);
System.out.println("NAME " + allrows.getString(cindex) + " PLACE : "+ allrows.getString(cindex1));
System.out.println("ID : "+ ID + " || NAME " + NAME + "|| PLACE : "+ PLACE);
id_.setText("ID : " + ID);
id_row.addView(id_);
Linear.addView(id_row);
name_.setText("NAME : "+NAME);
name_row.addView(name_);
Linear.addView(name_row);
place_.setText("PLACE : " + PLACE);
place_row.addView(place_);
Linear.addView(place_row);
sep.setText("---------------------------------------------------------------");
Linear.addView(sep);
}
while(allrows.moveToNext());
}
mydb.close();
}catch(Exception e){
Toast.makeText(getApplicationContext(), "Error encountered.", Toast.LENGTH_LONG);
}
}
// THIS FUNCTION UPDATES THE DATABASE ACCORDING TO THE CONDITION
public void updateTable(){
try{
mydb = openOrCreateDatabase(DBNAME, Context.MODE_PRIVATE,null);
mydb.execSQL("UPDATE " + TABLE + " SET NAME = 'MAX' WHERE PLACE = 'USA'");
mydb.close();
}catch(Exception e){
Toast.makeText(getApplicationContext(), "Error encountered", Toast.LENGTH_LONG);
}
}
// THIS FUNCTION DELETES VALUES FROM THE DATABASE ACCORDING TO THE CONDITION
public void deleteValues(){
try{
mydb = openOrCreateDatabase(DBNAME, Context.MODE_PRIVATE,null);
mydb.execSQL("DELETE FROM " + TABLE + " WHERE PLACE = 'USA'");
mydb.close();
}catch(Exception e){
Toast.makeText(getApplicationContext(), "Error encountered while deleting.", Toast.LENGTH_LONG);
}
}
// THIS FUNCTION DROPS A TABLE
public void dropTable(){
try{
mydb = openOrCreateDatabase(DBNAME, Context.MODE_PRIVATE,null);
mydb.execSQL("DROP TABLE " + TABLE);
mydb.close();
}catch(Exception e){
Toast.makeText(getApplicationContext(), "Error encountered while dropping.", Toast.LENGTH_LONG);
}
}
}
日志猫
09-10 11:14:18.432: E/Trace(1310): error opening trace file: No such file or directory (2)
09-10 11:14:19.671: D/AndroidRuntime(1310): Shutting down VM
09-10 11:14:19.671: W/dalvikvm(1310): threadid=1: thread exiting with uncaught exception (group=0x40a71930)
09-10 11:14:19.742: E/AndroidRuntime(1310): FATAL EXCEPTION: main
09-10 11:14:19.742: E/AndroidRuntime(1310): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.sqlite/com.sqlite.SQLiteExample}: android.view.InflateException: Binary XML file line #6: Error inflating class android.widget.ScrollView
09-10 11:14:19.742: E/AndroidRuntime(1310): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2180)
09-10 11:14:19.742: E/AndroidRuntime(1310): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2230)
09-10 11:14:19.742: E/AndroidRuntime(1310): at android.app.ActivityThread.access$600(ActivityThread.java:141)
09-10 11:14:19.742: E/AndroidRuntime(1310): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1234)
09-10 11:14:19.742: E/AndroidRuntime(1310): at android.os.Handler.dispatchMessage(Handler.java:99)
09-10 11:14:19.742: E/AndroidRuntime(1310): at android.os.Looper.loop(Looper.java:137)
09-10 11:14:19.742: E/AndroidRuntime(1310): at android.app.ActivityThread.main(ActivityThread.java:5041)
09-10 11:14:19.742: E/AndroidRuntime(1310): at java.lang.reflect.Method.invokeNative(Native Method)
09-10 11:14:19.742: E/AndroidRuntime(1310): at java.lang.reflect.Method.invoke(Method.java:511)
09-10 11:14:19.742: E/AndroidRuntime(1310): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
09-10 11:14:19.742: E/AndroidRuntime(1310): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
09-10 11:14:19.742: E/AndroidRuntime(1310): at dalvik.system.NativeStart.main(Native Method)
09-10 11:14:19.742: E/AndroidRuntime(1310): Caused by: android.view.InflateException: Binary XML file line #6: Error inflating class android.widget.ScrollView
09-10 11:14:19.742: E/AndroidRuntime(1310): at android.view.LayoutInflater.createView(LayoutInflater.java:613)
09-10 11:14:19.742: E/AndroidRuntime(1310): at com.android.internal.policy.impl.PhoneLayoutInflater.onCreateView(PhoneLayoutInflater.java:56)
09-10 11:14:19.742: E/AndroidRuntime(1310): at android.view.LayoutInflater.onCreateView(LayoutInflater.java:660)
09-10 11:14:19.742: E/AndroidRuntime(1310): at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:685)
09-10 11:14:19.742: E/AndroidRuntime(1310): at android.view.LayoutInflater.rInflate(LayoutInflater.java:746)
09-10 11:14:19.742: E/AndroidRuntime(1310): at android.view.LayoutInflater.inflate(LayoutInflater.java:489)
09-10 11:14:19.742: E/AndroidRuntime(1310): at android.view.LayoutInflater.inflate(LayoutInflater.java:396)
09-10 11:14:19.742: E/AndroidRuntime(1310): at android.view.LayoutInflater.inflate(LayoutInflater.java:352)
09-10 11:14:19.742: E/AndroidRuntime(1310): at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:270)
09-10 11:14:19.742: E/AndroidRuntime(1310): at android.app.Activity.setContentView(Activity.java:1881)
09-10 11:14:19.742: E/AndroidRuntime(1310): at com.sqlite.SQLiteExample.onCreate(SQLiteExample.java:25)
09-10 11:14:19.742: E/AndroidRuntime(1310): at android.app.Activity.performCreate(Activity.java:5104)
09-10 11:14:19.742: E/AndroidRuntime(1310): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1080)
09-10 11:14:19.742: E/AndroidRuntime(1310): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2144)
09-10 11:14:19.742: E/AndroidRuntime(1310): ... 11 more
09-10 11:14:19.742: E/AndroidRuntime(1310): Caused by: java.lang.reflect.InvocationTargetException
09-10 11:14:19.742: E/AndroidRuntime(1310): at java.lang.reflect.Constructor.constructNative(Native Method)
09-10 11:14:19.742: E/AndroidRuntime(1310): at java.lang.reflect.Constructor.newInstance(Constructor.java:417)
09-10 11:14:19.742: E/AndroidRuntime(1310): at android.view.LayoutInflater.createView(LayoutInflater.java:587)
09-10 11:14:19.742: E/AndroidRuntime(1310): ... 24 more
09-10 11:14:19.742: E/AndroidRuntime(1310): Caused by: android.content.res.Resources$NotFoundException: Resource is not a Drawable (color or path): TypedValue{t=0x12/d=0x0 a=2 r=0x7f020001}
09-10 11:14:19.742: E/AndroidRuntime(1310): at android.content.res.Resources.loadDrawable(Resources.java:1927)
09-10 11:14:19.742: E/AndroidRuntime(1310): at android.content.res.TypedArray.getDrawable(TypedArray.java:601)
09-10 11:14:19.742: E/AndroidRuntime(1310): at android.view.View.<init>(View.java:3330)
09-10 11:14:19.742: E/AndroidRuntime(1310): at android.view.ViewGroup.<init>(ViewGroup.java:431)
09-10 11:14:19.742: E/AndroidRuntime(1310): at android.widget.FrameLayout.<init>(FrameLayout.java:101)
09-10 11:14:19.742: E/AndroidRuntime(1310): at android.widget.ScrollView.<init>(ScrollView.java:161)
09-10 11:14:19.742: E/AndroidRuntime(1310): at android.widget.ScrollView.<init>(ScrollView.java:157)
09-10 11:14:19.742: E/AndroidRuntime(1310): ... 27 more
09-10 11:14:19.761: D/dalvikvm(1310): GC_CONCURRENT freed 80K, 7% free 2812K/3016K, paused 21ms+31ms, total 167ms
清单.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.sqlite"
android:versionCode="1"
android:versionName="1.0">
<application android:icon="@+drawable/icon" android:label="@string/app_name">
<activity android:name=".SQLiteExample"
android:label="SQLite Example Demo">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
activity_sqlite_example.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<ScrollView
android:id="@+id/ScrollView01"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="@+drawable/android">
<LinearLayout
android:id="@+id/linear"
android:orientation="vertical"
android:layout_below="@+id/add_record"
android:layout_width="wrap_content"
android:layout_height="fill_parent">
</LinearLayout>
</ScrollView>
</LinearLayout>