My app has no issue in opening the first screen in the emulator.But when i click the button of first page to enter the nect page-screen2,i get an error "unfortunately myapp has stopped".Kindly help me
this is screen1.java
package com.example.library;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
public class Screen1 extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_screen1);
Button login=(Button)findViewById(R.id.loginBtn);
login.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
Intent screen1i= new Intent(Screen1.this, Screen2.class);
startActivity(screen1i);
}
});
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.screen1, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
}
Screen2.java
package com.example.library;
import android.app.Activity;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.preference.PreferenceManager;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;
public class Screen2 extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_screen2);
Button orderButton1=(Button)findViewById(R.id.mpBtn);
orderButton1.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Intent intent1= new Intent(Screen2.this, Screen3.class);
startActivity(intent1);
}
});
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.screen2, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
}
android manifest
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.library"
android:versionCode="1"
android:versionName="1.0" >
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-sdk
android:minSdkVersion="17"
android:targetSdkVersion="17" />
<application
android:allowBackup="true"
android:icon="@drawable/icon"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name=".Screen1"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name=".Screen2"
android:label="@string/title_activity_screen2"
android:parentActivityName=".Screen1" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
<meta-data
android:name="android.support.PARENT_ACTIVITY"
android:value="com.example.
library.Screen1" />
</activity>
<activity
android:name=".Screen3"
android:label="@string/title_activity_screen3"
android:parentActivityName=".Screen2" >
<meta-data
android:name="android.support.PARENT_ACTIVITY"
android:value="com.example.library.Screen2" />
</activity>
<activity
android:name=".Second"
android:label="@string/title_activity_second" >
</activity>
<activity
android:name=".Screen4"
android:label="@string/title_activity_screen4"
android:parentActivityName=".Screen3" >
<meta-data
android:name="android.support.PARENT_ACTIVITY"
android:value="com.example.library.Screen3" />
</activity>
<activity
android:name=".Screen5"
android:label="@string/title_activity_screen5"
android:parentActivityName=".Screen4"
android:screenOrientation="portrait" >
<meta-data
android:name="android.support.PARENT_ACTIVITY"
android:value="com.example.library.Screen4" />
</activity>
</application>
</manifest>
logcat
02-22 13:45:31.631: E/AndroidRuntime(1115): Process: com.example.library, PID: 1115
02-22 13:45:31.631: E/AndroidRuntime(1115): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.library/com.example.library.Screen2}: android.view.InflateException: Binary XML file line #19: Error inflating class textview
02-22 13:45:31.631: E/AndroidRuntime(1115): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2195)
02-22 13:45:31.631: E/AndroidRuntime(1115): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2245)
02-22 13:45:31.631: E/AndroidRuntime(1115): at android.app.ActivityThread.access$800(ActivityThread.java:135)
02-22 13:45:31.631: E/AndroidRuntime(1115): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196)
02-22 13:45:31.631: E/AndroidRuntime(1115): at android.os.Handler.dispatchMessage(Handler.java:102)
02-22 13:45:31.631: E/AndroidRuntime(1115): at android.os.Looper.loop(Looper.java:136)
02-22 13:45:31.631: E/AndroidRuntime(1115): at android.app.ActivityThread.main(ActivityThread.java:5017)
02-22 13:45:31.631: E/AndroidRuntime(1115): at java.lang.reflect.Method.invokeNative(Native Method)
02-22 13:45:31.631: E/AndroidRuntime(1115): at java.lang.reflect.Method.invoke(Method.java:515)
02-22 13:45:31.631: E/AndroidRuntime(1115): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
02-22 13:45:31.631: E/AndroidRuntime(1115): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
02-22 13:45:31.631: E/AndroidRuntime(1115): at dalvik.system.NativeStart.main(Native Method)
02-22 13:45:31.631: E/AndroidRuntime(1115): Caused by: android.view.InflateException: Binary XML file line #19: Error inflating class textview
02-22 13:45:31.631: E/AndroidRuntime(1115): at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:707)
02-22 13:45:31.631: E/AndroidRuntime(1115): at android.view.LayoutInflater.rInflate(LayoutInflater.java:755)
02-22 13:45:31.631: E/AndroidRuntime(1115): at android.view.LayoutInflater.rInflate(LayoutInflater.java:758)
02-22 13:45:31.631: E/AndroidRuntime(1115): at android.view.LayoutInflater.inflate(LayoutInflater.java:492)
02-22 13:45:31.631: E/AndroidRuntime(1115): at android.view.LayoutInflater.inflate(LayoutInflater.java:397)
02-22 13:45:31.631: E/AndroidRuntime(1115): at android.view.LayoutInflater.inflate(LayoutInflater.java:353)
02-22 13:45:31.631: E/AndroidRuntime(1115): at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:290)
02-22 13:45:31.631: E/AndroidRuntime(1115): at android.app.Activity.setContentView(Activity.java:1929)
02-22 13:45:31.631: E/AndroidRuntime(1115): at com.example.library.Screen2.onCreate(Screen2.java:22)
02-22 13:45:31.631: E/AndroidRuntime(1115): at android.app.Activity.performCreate(Activity.java:5231)
02-22 13:45:31.631: E/AndroidRuntime(1115): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
02-22 13:45:31.631: E/AndroidRuntime(1115): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2159)
02-22 13:45:31.631: E/AndroidRuntime(1115): ... 11 more
02-22 13:45:31.631: E/AndroidRuntime(1115): Caused by: java.lang.ClassNotFoundException: Didn't find class "android.view.textview" on path: DexPathList[[zip file "/data/app/com.example.library-2.apk"],nativeLibraryDirectories=[/data/app-lib/com.example.library-2, /system/lib]]
02-22 13:45:31.631: E/AndroidRuntime(1115): at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
02-22 13:45:31.631: E/AndroidRuntime(1115): at java.lang.ClassLoader.loadClass(ClassLoader.java:497)
02-22 13:45:31.631: E/AndroidRuntime(1115): at java.lang.ClassLoader.loadClass(ClassLoader.java:457)
02-22 13:45:31.631: E/AndroidRuntime(1115): at android.view.LayoutInflater.createView(LayoutInflater.java:559)
02-22 13:45:31.631: E/AndroidRuntime(1115): at android.view.LayoutInflater.onCreateView(LayoutInflater.java:652)
02-22 13:45:31.631: E/AndroidRuntime(1115): at com.android.internal.policy.impl.PhoneLayoutInflater.onCreateView(PhoneLayoutInflater.java:66)
02-22 13:45:31.631: E/AndroidRuntime(1115): at android.view.LayoutInflater.onCreateView(LayoutInflater.java:669)
02-22 13:45:31.631: E/AndroidRuntime(1115): at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:694)
02-22 13:45:31.631: E/AndroidRuntime(1115): ... 22 more
02-22 13:45:31.891: W/ActivityManager(387): Force finishing activity com.example.library/.Screen2
02-22 13:45:32.001: W/ActivityManager(387): Force finishing activity com.example.library/.Screen1
02-22 13:45:32.791: W/ActivityManager(387): Activity pause timeout for ActivityRecord{b30ff8b0 u0 com.example.library/.Screen2 t3 f}
02-22 13:45:33.011: I/Choreographer(387): Skipped 30 frames! The application may be doing too much work on its main thread.
02-22 13:45:33.771: I/Choreographer(1036): Skipped 46 frames! The application may be doing too much work on its main thread.
02-22 13:45:34.181: W/EGL_emulation(1036): eglSurfaceAttrib not implemented
02-22 13:45:35.291: D/AlertService(946): No fired or scheduled alerts
02-22 13:45:35.351: D/AlertService(946): Scheduling next alarm with AlarmScheduler. sEventReminderReceived: null
02-22 13:45:35.411: D/AlarmScheduler(946): No events found starting within 1 week.
02-22 13:45:35.421: I/ActivityManager(387): Resuming delayed broadcast
02-22 13:45:36.061: I/ActivityManager(387): Delay finish: com.android.providers.calendar/.CalendarProviderBroadcastReceiver
02-22 13:45:36.501: I/ActivityManager(387): Resuming delayed broadcast
02-22 13:45:36.661: I/ActivityManager(387): Delay finish: com.android.mms/.transaction.SmsReceiver
02-22 13:45:36.731: V/SmsReceiverService(919): onStart: #1 mResultCode: -1 = Activity.RESULT_OK
02-22 13:45:37.081: E/SoundPool(387): error loading /system/media/audio/ui/Effect_Tick.ogg
02-22 13:45:37.081: W/AudioService(387): Soundpool could not load file: /system/media/audio/ui/Effect_Tick.ogg
02-22 13:45:37.101: E/SoundPool(387): error loading /system/media/audio/ui/Effect_Tick.ogg
02-22 13:45:37.101: W/AudioService(387): Soundpool could not load file: /system/media/audio/ui/Effect_Tick.ogg
02-22 13:45:37.121: E/SoundPool(387): error loading /system/media/audio/ui/Effect_Tick.ogg
02-22 13:45:37.121: W/AudioService(387): Soundpool could not load file: /system/media/audio/ui/Effect_Tick.ogg
02-22 13:45:37.161: E/SoundPool(387): error loading /system/media/audio/ui/Effect_Tick.ogg
02-22 13:45:37.161: W/AudioService(387): Soundpool could not load file: /system/media/audio/ui/Effect_Tick.ogg
02-22 13:45:37.471: D/dalvikvm(387): GC_FOR_ALLOC freed 618K, 18% free 6322K/7676K, paused 259ms, total 267ms
02-22 13:45:37.471: E/SoundPool(387): error loading /system/media/audio/ui/Effect_Tick.ogg
02-22 13:45:37.481: W/AudioService(387): Soundpool could not load file: /system/media/audio/ui/Effect_Tick.ogg
02-22 13:45:37.481: E/SoundPool(387): error loading /system/media/audio/ui/KeypressStandard.ogg
02-22 13:45:37.481: W/AudioService(387): Soundpool could not load file: /system/media/audio/ui/KeypressStandard.ogg
02-22 13:45:37.481: E/SoundPool(387): error loading /system/media/audio/ui/KeypressSpacebar.ogg
02-22 13:45:37.501: W/AudioService(387): Soundpool could not load file: /system/media/audio/ui/KeypressSpacebar.ogg
02-22 13:45:37.501: E/SoundPool(387): error loading /system/media/audio/ui/KeypressDelete.ogg
02-22 13:45:37.501: W/AudioService(387): Soundpool could not load file: /system/media/audio/ui/KeypressDelete.ogg
02-22 13:45:37.501: E/SoundPool(387): error loading /system/media/audio/ui/KeypressReturn.ogg
02-22 13:45:37.501: W/AudioService(387): Soundpool could not load file: /system/media/audio/ui/KeypressReturn.ogg
02-22 13:45:37.521: I/Process(1115): Sending signal. PID: 1115 SIG: 9
02-22 13:45:37.661: E/SoundPool(387): error loading /system/media/audio/ui/KeypressInvalid.ogg
02-22 13:45:37.661: W/AudioService(387): Soundpool could not load file: /system/media/audio/ui/KeypressInvalid.ogg
02-22 13:45:37.671: W/AudioService(387): onLoadSoundEffects(), Error -1 while loading samples
02-22 13:45:37.881: I/Choreographer(387): Skipped 48 frames! The application may be doing too much work on its main thread.
02-22 13:45:38.941: I/ActivityManager(387): Process com.example.library (pid 1115) has died.
02-22 13:45:38.971: I/WindowState(387): WIN DEATH: Window{b3003ac0 u0 com.example.library/com.example.library.Screen1}
02-22 13:45:39.551: D/dalvikvm(919): GC_FOR_ALLOC freed 340K, 13% free 2872K/3284K, paused 97ms, total 118ms
02-22 13:45:39.601: E/StrictMode(919): A resource was acquired at attached stack trace but never released. See java.io.Closeable for information on avoiding resource leaks.
02-22 13:45:39.601: E/StrictMode(919): java.lang.Throwable: Explicit termination method 'release' not called
02-22 13:45:39.601: E/StrictMode(919): at dalvik.system.CloseGuard.open(CloseGuard.java:184)
02-22 13:45:39.601: E/StrictMode(919): at android.drm.DrmManagerClient.<init>(DrmManagerClient.java:258)
02-22 13:45:39.601: E/StrictMode(919): at com.google.android.mms.pdu.PduPersister.<init>(PduPersister.java:288)
02-22 13:45:39.601: E/StrictMode(919): at com.google.android.mms.pdu.PduPersister.getPduPersister(PduPersister.java:296)
02-22 13:45:39.601: E/StrictMode(919): at com.android.mms.transaction.TransactionService.onNewIntent(TransactionService.java:224)
02-22 13:45:39.601: E/StrictMode(919): at com.android.mms.transaction.TransactionService$ServiceHandler.handleMessage(TransactionService.java:621)
02-22 13:45:39.601: E/StrictMode(919): at android.os.Handler.dispatchMessage(Handler.java:102)
02-22 13:45:39.601: E/StrictMode(919): at android.os.Looper.loop(Looper.java:136)
02-22 13:45:39.601: E/StrictMode(919): at android.os.HandlerThread.run(HandlerThread.java:61)
02-22 13:45:39.831: I/ActivityManager(387): Resuming delayed broadcast
02-22 13:45:40.041: I/ActivityManager(387): Delay finish: com.android.providers.calendar/.CalendarProviderBroadcastReceiver
02-22 13:45:40.151: I/ActivityManager(387): Resuming delayed broadcast
02-22 13:45:40.231: V/AlarmClock(967): AlarmInitReceiver android.intent.action.TIME_SET
02-22 13:45:41.161: I/AlarmClock(967): Displaying next alarm time: ''
02-22 13:45:41.291: V/AlarmClock(967): AlarmInitReceiver finished
02-22 13:45:41.751: I/MediaFocusControl(387): AudioFocus abandonAudioFocus() from android.media.AudioManager@b2d25998com.android.music.MediaPlaybackService$3@b2d24818
02-22 13:47:37.971: D/dalvikvm(515): GC_FOR_ALLOC freed 530K, 16% free 3300K/3900K, paused 227ms, total 238ms
