我是新手（我的意思是品牌打屁股）。不，这不是家庭作业。
我的应用程序继续在我的手机和AVD上崩溃。我不确定发生了什么。我按照本教程：https://www.youtube.com/watch?v=E8BVJWcEqHE。我可以得到一些帮助吗？这是一个简单的记事本风格的应用程序，我的目标是4.2平台。我会发布LOGCAT，但它目前只有10,000个条目，对你来说比其他任何东西都更令人烦恼。
谢谢
MainActivity：
package com.example.shopez;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.IOException;
import android.app.Activity;
import android.app.ActionBar;
import android.app.Fragment;
import android.content.Context;
import android.os.Bundle;
import android.text.method.ScrollingMovementMethod;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.os.Build;
public class MainActivity extends Activity implements OnClickListener{
TextView mtextOutput;
EditText mtextInput;
final static String FILENAME="notes.txt";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
setupWidgets();
loadTextFromFile();
if (savedInstanceState == null) {
getFragmentManager().beginTransaction()
.add(R.id.container, new PlaceholderFragment())
.commit();
}
}
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
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);
}
public static class PlaceholderFragment extends Fragment {
public PlaceholderFragment() {
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_main, container, false);
return rootView;
}
}
private void loadTextFromFile() {
File f = new File(getFilesDir(),FILENAME);
try {
BufferedReader br = new BufferedReader(new FileReader(f));
String line;
while((line=br.readLine())!=null){
mtextOutput.setText(line+"\n"+mtextOutput.getText());
}
br.close();
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
private void setupWidgets() {
Button save = (Button)findViewById(R.id.save);
save.setOnClickListener(this);
mtextOutput = (TextView)findViewById(R.id.textView);
mtextInput = (EditText)findViewById(R.id.textInput);
mtextOutput.setMovementMethod(new ScrollingMovementMethod());
}
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
if(v.getId()==R.id.save){
String text = mtextInput.getText().toString();
mtextInput.setText("");
mtextOutput.setText(text+"\n"+mtextOutput.getText().toString());
try {
FileOutputStream fo = openFileOutput(FILENAME, Context.MODE_APPEND);
fo.write(text.getBytes());
fo.write("\n".getBytes());
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
}
fragment_main.xml
<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.shopez.MainActivity$PlaceholderFragment" >
<Button
android:id="@+id/save"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_alignParentTop="true"
android:layout_marginTop="20dp"
android:text="Button" />
<EditText
android:id="@+id/textInput"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBottom="@+id/save"
android:layout_alignParentLeft="true"
android:ems="10" >
<requestFocus />
</EditText>
<TextView
android:id="@+id/textView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/textInput"
android:layout_alignParentBottom="true"
android:layout_alignParentRight="true"
android:layout_below="@+id/textInput"
android:layout_marginTop="19dp"
android:text="TextView" />
</RelativeLayout>
MAINIFEST
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.shopez"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="17"
android:targetSdkVersion="17" />
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name="com.example.shopez.MainActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
LOGCAT错误 - 我抓住了一大堆错误，希望这有点帮助
04-30 18:15:57.177: E/QcrilMsgTunnelSocket(30170): IOExceptionjava.io.IOException: No such file or directoryReason: No such file or directory
04-30 18:15:59.489: E/jdwp(32276): Failed sending reply to debugger: Bad file number
04-30 18:16:00.110: E/MP-Decision(1700): num online cores: 1 reqd : 2 available : 4 rq_depth:4.300000 hotplug_avg_load_dw: 56
04-30 18:16:00.110: E/MP-Decision(1700): UP cpu:1 core_idx:1 Nw:1.900000 Tw:140 total_time_up:147.000000
04-30 18:16:00.160: E/MP-Decision(1700): num online cores: 2 reqd : 3 available : 4 rq_depth:2.900000 hotplug_avg_load_dw: 77
04-30 18:16:00.160: E/MP-Decision(1700): UP cpu:1 core_idx:1 Nw:1.900000 Tw:140 total_time_up:0.000000
04-30 18:16:00.160: E/MP-Decision(1700): UP cpu:2 core_idx:2 Nw:2.700000 Tw:90 total_time_up:190.000000
04-30 18:16:00.350: E/SELinux(32305): selinux_android_seapp_context_reload: seapp_contexts file is loaded from /seapp_contexts
04-30 18:16:00.490: E/AndroidRuntime(32305): FATAL EXCEPTION: main
04-30 18:16:00.490: E/AndroidRuntime(32305): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.shopez/com.example.shopez.MainActivity}: java.lang.NullPointerException
04-30 18:16:00.490: E/AndroidRuntime(32305): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2247)
04-30 18:16:00.490: E/AndroidRuntime(32305): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2297)
04-30 18:16:00.490: E/AndroidRuntime(32305): at android.app.ActivityThread.access$700(ActivityThread.java:152)
04-30 18:16:00.490: E/AndroidRuntime(32305): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1282)
04-30 18:16:00.490: E/AndroidRuntime(32305): at android.os.Handler.dispatchMessage(Handler.java:99)
04-30 18:16:00.490: E/AndroidRuntime(32305): at android.os.Looper.loop(Looper.java:137)
04-30 18:16:00.490: E/AndroidRuntime(32305): at android.app.ActivityThread.main(ActivityThread.java:5328)
04-30 18:16:00.490: E/AndroidRuntime(32305): at java.lang.reflect.Method.invokeNative(Native Method)
04-30 18:16:00.490: E/AndroidRuntime(32305): at java.lang.reflect.Method.invoke(Method.java:511)
04-30 18:16:00.490: E/AndroidRuntime(32305): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1102)
04-30 18:16:00.490: E/AndroidRuntime(32305): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:869)
04-30 18:16:00.490: E/AndroidRuntime(32305): at dalvik.system.NativeStart.main(Native Method)
04-30 18:16:00.490: E/AndroidRuntime(32305): Caused by: java.lang.NullPointerException
04-30 18:16:00.490: E/AndroidRuntime(32305): at com.example.shopez.MainActivity.setupWidgets(MainActivity.java:103)
04-30 18:16:00.490: E/AndroidRuntime(32305): at com.example.shopez.MainActivity.onCreate(MainActivity.java:39)
04-30 18:16:00.490: E/AndroidRuntime(32305): at android.app.Activity.performCreate(Activity.java:5250)
04-30 18:16:00.490: E/AndroidRuntime(32305): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1097)
04-30 18:16:00.490: E/AndroidRuntime(32305): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2211)
04-30 18:16:00.490: E/AndroidRuntime(32305): ... 11 more
04-30 18:16:00.911: E/MP-Decision(1700): num online cores: 3 reqd : 1 available : 4 rq_depth:0.500000 hotplug_avg_load_dw: 14
04-30 18:16:00.911: E/MP-Decision(1700): DOWN cpu:2 core_idx:2 Ns:2.100000 Ts:240 total_time_down:243.000000
04-30 18:16:00.911: E/MP-Decision(1700): DOWN cpu:1 core_idx:1 Ns:1.100000 Ts:190 total_time_down:243.000000
04-30 18:16:01.171: E/QcrilMsgTunnelSocket(30170): IOExceptionjava.io.IOException: No such file or directoryReason: No such file or directory
04-30 18:16:01.451: E/LightSensor(775): Light old sensor_state 0, new sensor_state : 128 en : 1
04-30 18:16:01.481: E/Sensors(775): Acc old sensor_state 128, new sensor_state : 129 en : 1
04-30 18:16:02.012: E/ANDR-PERF-MPCTL(775): MPCTL client send 3
04-30 18:16:02.142: E/MP-Decision(1700): num online cores: 1 reqd : 2 available : 4 rq_depth:3.700000 hotplug_avg_load_dw: 38
04-30 18:16:02.142: E/MP-Decision(1700): UP cpu:1 core_idx:1 Nw:1.900000 Tw:140 total_time_up:674.000000
04-30 18:16:02.342: E/GestureService(1577): updateFlags started
04-30 18:16:02.342: E/GestureService(1577): bVertical = false
04-30 18:16:02.342: E/GestureService(1577): bHorizontal = false
04-30 18:16:02.422: E/0409(3501): call setFingerHoveredInAppWidge in remoteview. enabled:false
04-30 18:16:02.442: E/MP-Decision(1700): num online cores: 2 reqd : 3 available : 4 rq_depth:3.700000 hotplug_avg_load_dw: 78
04-30 18:16:02.442: E/MP-Decision(1700): UP cpu:1 core_idx:1 Nw:1.900000 Tw:140 total_time_up:0.000000
04-30 18:16:02.442: E/MP-Decision(1700): UP cpu:2 core_idx:2 Nw:2.700000 Tw:90 total_time_up:98.000000
04-30 18:16:02.442: E/WifiHW(775): ##################### set firmware type 0 #####################
04-30 18:16:02.492: E/MP-Decision(1700): num online cores: 3 reqd : 4 available : 4 rq_depth:5.300000 hotplug_avg_load_dw: 201
04-30 18:16:02.492: E/MP-Decision(1700): UP cpu:1 core_idx:1 Nw:1.900000 Tw:140 total_time_up:0.000000
04-30 18:16:02.492: E/MP-Decision(1700): UP cpu:2 core_idx:2 Nw:2.700000 Tw:90 total_time_up:0.000000
04-30 18:16:02.492: E/MP-Decision(1700): UP cpu:3 core_idx:3 Nw:3.500000 Tw:90 total_time_up:96.000000
04-30 18:16:02.522: E/WifiHW(775): ##################### set firmware type 0 #####################
04-30 18:16:02.602: E/WifiHW(775): ##################### set firmware type 0 #####################
04-30 18:16:02.893: E/MP-Decision(1700): num online cores: 4 reqd : 2 available : 4 rq_depth:1.200000 hotplug_avg_load_dw: 60
04-30 18:16:02.893: E/MP-Decision(1700): DOWN cpu:3 core_idx:3 Ns:3.100000 Ts:240 total_time_down:245.000000
04-30 18:16:02.893: E/MP-Decision(1700): DOWN cpu:2 core_idx:2 Ns:2.100000 Ts:240 total_time_down:245.000000
04-30 18:16:02.953: E/MotionRecognitionService(775): mReceiver.onReceive : ACTION_USER_PRESENT :: UNLOCK SCREEN
04-30 18:16:03.043: E/MP-Decision(1700): num online cores: 2 reqd : 4 available : 4 rq_depth:5.500000 hotplug_avg_load_dw: 106
04-30 18:16:03.043: E/MP-Decision(1700): UP cpu:1 core_idx:1 Nw:1.900000 Tw:140 total_time_up:0.000000
04-30 18:16:03.043: E/MP-Decision(1700): UP cpu:2 core_idx:2 Nw:2.700000 Tw:90 total_time_up:98.000000
04-30 18:16:03.043: E/MP-Decision(1700): UP cpu:3 core_idx:3 Nw:3.500000 Tw:90 total_time_up:98.000000
04-30 18:16:03.043: E/EnterpriseContainerManager(775): ContainerPolicy Service is not yet ready!!!
04-30 18:16:03.133: E/WifiHW(775): ##################### set firmware type 0 #####################
04-30 18:16:03.393: E/MP-Decision(1700): num online cores: 4 reqd : 2 available : 4 rq_depth:0.200000 hotplug_avg_load_dw: 56
04-30 18:16:03.393: E/MP-Decision(1700): DOWN cpu:3 core_idx:3 Ns:3.100000 Ts:240 total_time_down:245.000000
04-30 18:16:03.393: E/MP-Decision(1700): DOWN cpu:2 core_idx:2 Ns:2.100000 Ts:240 total_time_down:245.000000
04-30 18:16:03.493: E/MP-Decision(1700): num online cores: 2 reqd : 1 available : 4 rq_depth:0.000000 hotplug_avg_load_dw: 18
04-30 18:16:03.493: E/MP-Decision(1700): DOWN cpu:1 core_idx:1 Ns:1.100000 Ts:190 total_time_down:138.000000
04-30 18:16:03.693: E/MP-Decision(1700): num online cores: 1 reqd : 2 available : 4 rq_depth:5.500000 hotplug_avg_load_dw: 52
04-30 18:16:03.693: E/MP-Decision(1700): UP cpu:1 core_idx:1 Nw:1.900000 Tw:140 total_time_up:183.000000
04-30 18:16:03.743: E/MP-Decision(1700): num online cores: 2 reqd : 3 available : 4 rq_depth:4.500000 hotplug_avg_load_dw: 101
04-30 18:16:03.743: E/MP-Decision(1700): UP cpu:1 core_idx:1 Nw:1.900000 Tw:140 total_time_up:0.000000
04-30 18:16:03.743: E/MP-Decision(1700): UP cpu:2 core_idx:2 Nw:2.700000 Tw:90 total_time_up:230.000000
04-30 18:16:04.294: E/MP-Decision(1700): num online cores: 3 reqd : 1 available : 4 rq_depth:0.000000 hotplug_avg_load_dw: 16
04-30 18:16:04.294: E/MP-Decision(1700): DOWN cpu:2 core_idx:2 Ns:2.100000 Ts:240 total_time_down:245.000000
04-30 18:16:04.294: E/MP-Decision(1700): DOWN cpu:1 core_idx:1 Ns:1.100000 Ts:190 total_time_down:245.000000
04-30 18:16:04.494: E/MP-Decision(1700): num online cores: 1 reqd : 2 available : 4 rq_depth:2.500000 hotplug_avg_load_dw: 56
04-30 18:16:04.494: E/MP-Decision(1700): UP cpu:1 core_idx:1 Nw:1.900000 Tw:140 total_time_up:147.000000
04-30 18:16:04.544: E/AllShare(ASF_DMC)(21602): [CP_DISCOVERY] ParseURI: 490: No IP value
04-30 18:16:05.045: E/MP-Decision(1700): num online cores: 2 reqd : 1 available : 4 rq_depth:1.000000 hotplug_avg_load_dw: 24
04-30 18:16:05.045: E/MP-Decision(1700): DOWN cpu:1 core_idx:1 Ns:1.100000 Ts:190 total_time_down:196.000000
04-30 18:16:05.165: E/QcrilMsgTunnelSocket(30170): IOExceptionjava.io.IOException: No such file or directoryReason: No such file or directory
04-30 18:16:05.235: E/MP-Decision(1700): num online cores: 1 reqd : 3 available : 4 rq_depth:4.100000 hotplug_avg_load_dw: 62
04-30 18:16:05.235: E/MP-Decision(1700): UP cpu:1 core_idx:1 Nw:1.900000 Tw:140 total_time_up:186.000000
04-30 18:16:05.235: E/MP-Decision(1700): UP cpu:2 core_idx:2 Nw:2.700000 Tw:90 total_time_up:98.000000
04-30 18:16:05.525: E/NotificationService(775): Suppressing notification from package com.weather.Weather by user request.
04-30 18:16:05.535: E/NotificationService(775): Suppressing notification from package com.weather.Weather by user request.
04-30 18:16:05.785: E/MP-Decision(1700): num online cores: 3 reqd : 1 available : 4 rq_depth:0.000000 hotplug_avg_load_dw: 10
04-30 18:16:05.785: E/MP-Decision(1700): DOWN cpu:2 core_idx:2 Ns:2.100000 Ts:240 total_time_down:245.000000
04-30 18:16:05.785: E/MP-Decision(1700): DOWN cpu:1 core_idx:1 Ns:1.100000 Ts:190 total_time_down:245.000000
04-30 18:16:07.067: E/Watchdog(775): !@Sync 440
04-30 18:16:08.168: E/MP-Decision(1700): num online cores: 1 reqd : 2 available : 4 rq_depth:3.500000 hotplug_avg_load_dw: 24
04-30 18:16:08.168: E/MP-Decision(1700): UP cpu:1 core_idx:1 Nw:1.900000 Tw:140 total_time_up:146.000000
04-30 18:16:08.208: E/WifiHW(775): ##################### set firmware type 0 #####################
04-30 18:16:08.218: E/MP-Decision(1700): num online cores: 2 reqd : 4 available : 4 rq_depth:3.900000 hotplug_avg_load_dw: 122
04-30 18:16:08.218: E/MP-Decision(1700): UP cpu:1 core_idx:1 Nw:1.900000 Tw:140 total_time_up:0.000000
04-30 18:16:08.218: E/MP-Decision(1700): UP cpu:2 core_idx:2 Nw:2.700000 Tw:90 total_time_up:191.000000
04-30 18:16:08.218: E/MP-Decision(1700): UP cpu:3 core_idx:3 Nw:3.500000 Tw:90 total_time_up:191.000000
04-30 18:16:08.468: E/MP-Decision(1700): num online cores: 4 reqd : 1 available : 4 rq_depth:0.000000 hotplug_avg_load_dw: 29
04-30 18:16:08.468: E/MP-Decision(1700): DOWN cpu:3 core_idx:3 Ns:3.100000 Ts:240 total_time_down:240.000000
04-30 18:16:08.468: E/MP-Decision(1700): DOWN cpu:2 core_idx:2 Ns:2.100000 Ts:240 total_time_down:240.000000
04-30 18:16:08.468: E/MP-Decision(1700): DOWN cpu:1 core_idx:1 Ns:1.100000 Ts:190 total_time_down:240.000000
04-30 18:16:09.179: E/QcrilMsgTunnelSocket(30170): IOExceptionjava.io.IOException: No such file or directoryReason: No such file or directory
04-30 18:16:11.941: E/AllShare(ASF_DMC)(21602): [CP_DISCOVERY] ParseURI: 490: No IP value
04-30 18:16:13.183: E/QcrilMsgTunnelSocket(30170): IOExceptionjava.io.IOException: No such file or directoryReason: No such file or directory
04-30 18:16:17.267: E/QcrilMsgTunnelSocket(30170): IOExceptionjava.io.IOException: No such file or directoryReason: No such file or directory
04-30 18:16:21.261: E/QcrilMsgTunnelSocket(30170): IOExceptionjava.io.IOException: No such file or directoryReason: No such file or directory
04-30 18:16:25.274: E/QcrilMsgTunnelSocket(30170): IOExceptionjava.io.IOException: No such file or directoryReason: No such file or directory
04-30 18:16:28.007: E/SELinux(32445): selinux_android_seapp_context_reload: seapp_contexts file is loaded from /seapp_contexts
04-30 18:16:28.197: E/MP-Decision(1700): num online cores: 1 reqd : 2 available : 4 rq_depth:1.100000 hotplug_avg_load_dw: 64
04-30 18:16:28.197: E/MP-Decision(1700): UP cpu:1 core_idx:1 Nw:1.900000 Tw:140 total_time_up:0.000000
04-30 18:16:28.448: E/MP-Decision(1700): num online cores: 2 reqd : 1 available : 4 rq_depth:0.000000 hotplug_avg_load_dw: 25
04-30 18:16:28.448: E/MP-Decision(1700): DOWN cpu:1 core_idx:1 Ns:1.100000 Ts:190 total_time_down:237.000000
04-30 18:16:29.268: E/QcrilMsgTunnelSocket(30170): IOExceptionjava.io.IOException: No such file or directoryReason: No such file or directory
04-30 18:16:32.952: E/LightSensor(775): Light old sensor_state 129, new sensor_state : 1 en : 0
04-30 18:16:32.952: E/Sensors(775): Acc old sensor_state 1, new sensor_state : 0 en : 0
04-30 18:16:33.022: E/ANDR-PERF-MPCTL(775): MPCTL client send 2
04-30 18:16:33.202: E/MP-Decision(1700): num online cores: 1 reqd : 2 available : 4 rq_depth:12.900000 hotplug_avg_load_dw: 41
04-30 18:16:33.202: E/MP-Decision(1700): UP cpu:1 core_idx:1 Nw:1.900000 Tw:140 total_time_up:144.000000
04-30 18:16:33.212: E/LightSensor(775): Light old sensor_state 0, new sensor_state : 128 en : 1
04-30 18:16:33.242: E/LSO(775): LSO Service is not yet ready!!!
04-30 18:16:33.242: E/LSO(775): LSO Service is not yet ready!!!
04-30 18:16:33.242: E/LSO(775): LSO Service is not yet ready!!!
04-30 18:16:33.242: E/LSO(775): LSO Service is not yet ready!!!
04-30 18:16:33.252: E/MP-Decision(1700): num online cores: 2 reqd : 4 available : 4 rq_depth:11.300000 hotplug_avg_load_dw: 142
04-30 18:16:33.252: E/MP-Decision(1700): UP cpu:1 core_idx:1 Nw:1.900000 Tw:140 total_time_up:0.000000
04-30 18:16:33.252: E/MP-Decision(1700): UP cpu:2 core_idx:2 Nw:2.700000 Tw:90 total_time_up:193.000000
04-30 18:16:33.262: E/MP-Decision(1700): UP cpu:3 core_idx:3 Nw:3.500000 Tw:90 total_time_up:193.000000
04-30 18:16:33.272: E/QcrilMsgTunnelSocket(30170): IOExceptionjava.io.IOException: No such file or directoryReason: No such file or directory
04-30 18:16:33.282: E/LSO(775): LSO Service is not yet ready!!!
04-30 18:16:33.282: E/LSO(775): LSO Service is not yet ready!!!
04-30 18:16:33.282: E/LSO(775): LSO Service is not yet ready!!!
04-30 18:16:33.282: E/LSO(775): LSO Service is not yet ready!!!
04-30 18:16:33.392: E/InputEventModelImpl(2442): onStartInput event aborted: com.touchtype.keyboard.inputeventmodel.ExtractedTextUnavailableException: could not obtain extracted text (class com.touchtype.keyboard.inputeventmodel.ExtractedTextUnavailableException)
04-30 18:16:33.512: E/LightSensor(775): Light old sensor_state 128, new sensor_state : 0 en : 0
04-30 18:16:33.603: E/AllShare(ASF_DMC)(21602): [NETWORK_LAYER] receive_handler: 224: [Multicast Server::receive_handler] Canceled [Operation Canceled]
04-30 18:16:33.603: E/AllShare(ASF_DMC)(21602): [NETWORK_LAYER] read_handler: 215: [UDPServer::read_handler] Canceled [Operation Canceled]
04-30 18:16:33.623: E/WifiHW(775): ##################### set firmware type 0 #####################
04-30 18:16:33.703: E/MP-Decision(1700): num online cores: 4 reqd : 3 available : 4 rq_depth:0.000000 hotplug_avg_load_dw: 87
04-30 18:16:33.703: E/MP-Decision(1700): DOWN cpu:3 core_idx:3 Ns:3.100000 Ts:240 total_time_down:245.000000
04-30 18:16:33.753: E/MP-Decision(1700): num online cores: 3 reqd : 1 available : 4 rq_depth:0.000000 hotplug_avg_load_dw: 8
04-30 18:16:33.753: E/MP-Decision(1700): DOWN cpu:2 core_idx:2 Ns:2.100000 Ts:240 total_time_down:95.000000
04-30 18:16:33.753: E/MP-Decision(1700): DOWN cpu:1 core_idx:1 Ns:1.100000 Ts:190 total_time_down:95.000000
04-30 18:16:34.694: E/LightSensor(775): Light old sensor_state 0, new sensor_state : 128 en : 1
04-30 18:16:34.764: E/WifiHW(775): ##################### set firmware type 0 #####################
04-30 18:16:34.834: E/Sensors(775): Acc old sensor_state 128, new sensor_state : 129 en : 1
04-30 18:16:34.954: E/LightSensor(775): Light old sensor_state 129, new sensor_state : 1 en : 0
04-30 18:16:35.104: E/WifiHW(775): ##################### set firmware type 0 #####################
04-30 18:16:35.174: E/MP-Decision(1700): num online cores: 1 reqd : 2 available : 4 rq_depth:4.000000 hotplug_avg_load_dw: 29
04-30 18:16:35.174: E/MP-Decision(1700): UP cpu:1 core_idx:1 Nw:1.900000 Tw:140 total_time_up:194.000000
04-30 18:16:35.534: E/MP-Decision(1700): num online cores: 2 reqd : 1 available : 4 rq_depth:0.000000 hotplug_avg_load_dw: 12
04-30 18:16:35.534: E/MP-Decision(1700): DOWN cpu:1 core_idx:1 Ns:1.100000 Ts:190 total_time_down:305.000000
04-30 18:16:36.535: E/LightSensor(775): Light old sensor_state 1, new sensor_state : 129 en : 1
04-30 18:16:37.046: E/ANDR-PERF-MPCTL(775): MPCTL client send 3
04-30 18:16:37.056: E/Watchdog(775): !@Sync 441
04-30 18:16:37.116: E/MP-Decision(1700): num online cores: 1 reqd : 2 available : 4 rq_depth:18.100000 hotplug_avg_load_dw: 34
04-30 18:16:37.116: E/MP-Decision(1700): UP cpu:1 core_idx:1 Nw:1.900000 Tw:140 total_time_up:578.000000
04-30 18:16:37.166: E/MP-Decision(1700): num online cores: 2 reqd : 4 available : 4 rq_depth:4.000000 hotplug_avg_load_dw: 142
04-30 18:16:37.166: E/MP-Decision(1700): UP cpu:1 core_idx:1 Nw:1.900000 Tw:140 total_time_up:0.000000
04-30 18:16:37.166: E/MP-Decision(1700): UP cpu:2 core_idx:2 Nw:2.700000 Tw:90 total_time_up:625.000000
04-30 18:16:37.166: E/MP-Decision(1700): UP cpu:3 core_idx:3 Nw:3.500000 Tw:90 total_time_up:625.000000
04-30 18:16:37.266: E/QcrilMsgTunnelSocket(30170): IOExceptionjava.io.IOException: No such file or directoryReason: No such file or directory
04-30 18:16:37.326: E/GestureService(1577): updateFlags started
04-30 18:16:37.326: E/GestureService(1577): bVertical = false
04-30 18:16:37.326: E/GestureService(1577): bHorizontal = false
04-30 18:16:37.376: E/0409(3501): call setFingerHoveredInAppWidge in remoteview. enabled:false
04-30 18:16:37.396: E/WifiHW(775): ##################### set firmware type 0 #####################
04-30 18:16:37.717: E/MP-Decision(1700): num online cores: 4 reqd : 3 available : 4 rq_depth:2.200000 hotplug_avg_load_dw: 86
04-30 18:16:37.717: E/MP-Decision(1700): DOWN cpu:3 core_idx:3 Ns:3.100000 Ts:240 total_time_down:245.000000
04-30 18:16:37.867: E/MotionRecognitionService(775): mReceiver.onReceive : ACTION_USER_PRESENT :: UNLOCK SCREEN
04-30 18:16:37.877: E/SELinux(32538): selinux_android_seapp_context_reload: seapp_contexts file is loaded from /seapp_contexts
04-30 18:16:37.907: E/EnterpriseContainerManager(775): ContainerPolicy Service is not yet ready!!!
04-30 18:16:37.967: E/MP-Decision(1700): num online cores: 3 reqd : 4 available : 4 rq_depth:5.700000 hotplug_avg_load_dw: 116
04-30 18:16:37.967: E/MP-Decision(1700): UP cpu:1 core_idx:1 Nw:1.900000 Tw:140 total_time_up:0.000000
04-30 18:16:37.967: E/MP-Decision(1700): UP cpu:2 core_idx:2 Nw:2.700000 Tw:90 total_time_up:0.000000
04-30 18:16:37.967: E/MP-Decision(1700): UP cpu:3 core_idx:3 Nw:3.500000 Tw:90 total_time_up:96.000000
04-30 18:16:38.077: E/SELinux(32558): selinux_android_seapp_context_reload: seapp_contexts file is loaded from /seapp_contexts
04-30 18:16:38.267: E/MP-Decision(1700): num online cores: 4 reqd : 3 available : 4 rq_depth:1.200000 hotplug_avg_load_dw: 88
04-30 18:16:38.267: E/MP-Decision(1700): DOWN cpu:3 core_idx:3 Ns:3.100000 Ts:240 total_time_down:245.000000
04-30 18:16:38.567: E/MP-Decision(1700): num online cores: 3 reqd : 1 available : 4 rq_depth:0.100000 hotplug_avg_load_dw: 28
04-30 18:16:38.567: E/MP-Decision(1700): DOWN cpu:2 core_idx:2 Ns:2.100000 Ts:240 total_time_down:195.000000
04-30 18:16:38.567: E/MP-Decision(1700): DOWN cpu:1 core_idx:1 Ns:1.100000 Ts:190 total_time_down:195.000000
04-30 18:16:38.748: E/WifiHW(775): ##################### set firmware type 0 #####################
04-30 18:16:41.270: E/QcrilMsgTunnelSocket(30170): IOExceptionjava.io.IOException: No such file or directoryReason: No such file or directory
04-30 18:16:45.274: E/QcrilMsgTunnelSocket(30170): IOExceptionjava.io.IOException: No such file or directoryReason: No such file or directory
04-30 18:16:46.976: E/MP-Decision(1700): num online cores: 1 reqd : 2 available : 4 rq_depth:2.100000 hotplug_avg_load_dw: 31
04-30 18:16:46.976: E/MP-Decision(1700): UP cpu:1 core_idx:1 Nw:1.900000 Tw:140 total_time_up:194.000000
04-30 18:16:47.326: E/MP-Decision(1700): num online cores: 2 reqd : 1 available : 4 rq_depth:0.000000 hotplug_avg_load_dw: 27
04-30 18:16:47.326: E/MP-Decision(1700): DOWN cpu:1 core_idx:1 Ns:1.100000 Ts:190 total_time_down:292.000000
04-30 18:16:49.288: E/QcrilMsgTunnelSocket(30170): IOExceptionjava.io.IOException: No such file or directoryReason: No such file or directory
04-30 18:16:53.302: E/QcrilMsgTunnelSocket(30170): IOExceptionjava.io.IOException: No such file or directoryReason: No such file or directory
04-30 18:16:57.306: E/QcrilMsgTunnelSocket(30170): IOExceptionjava.io.IOException: No such file or directoryReason: No such file or directory
答案 0 :(得分：0)
读取您的日志，错误在方法setupWidgets上。如果要使用片段，则在片段类PlaceholderFragment上创建UI。将所有方法从活动移动到片段类。请参阅下面的代码。
package com.example.shopez;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.IOException;
import android.app.Activity;
import android.app.Fragment;
import android.content.Context;
import android.os.Bundle;
import android.text.method.ScrollingMovementMethod;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
public class MainActivity extends Activity {
final static String FILENAME = "notes.txt";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
if (savedInstanceState == null) {
getFragmentManager().beginTransaction()
.add(R.id.container, new PlaceholderFragment()).commit();
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, 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);
}
/**
* A placeholder fragment containing a simple view.
*/
public static class PlaceholderFragment extends Fragment implements
OnClickListener {
TextView mtextOutput;
EditText mtextInput;
public PlaceholderFragment() {
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_main, container,
false);
Button save = (Button) rootView.findViewById(R.id.save);
save.setOnClickListener(this);
mtextOutput = (TextView) rootView.findViewById(R.id.textView);
mtextInput = (EditText) rootView.findViewById(R.id.textInput);
mtextOutput.setMovementMethod(new ScrollingMovementMethod());
return rootView;
}
@Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
loadTextFromFile();
}
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
if (v.getId() == R.id.save) {
String text = mtextInput.getText().toString();
mtextInput.setText("");
mtextOutput.setText(text + "\n"
+ mtextOutput.getText().toString());
try {
FileOutputStream fo = getActivity().openFileOutput(
FILENAME, Context.MODE_APPEND);
fo.write(text.getBytes());
fo.write("\n".getBytes());
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
private void loadTextFromFile() {
File f = new File(getActivity().getFilesDir(), FILENAME);
try {
BufferedReader br = new BufferedReader(new FileReader(f));
String line;
while ((line = br.readLine()) != null) {
mtextOutput.setText(line + "\n" + mtextOutput.getText());
}
br.close();
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
}
应用程序不起作用，因为丢失了文件，但没有崩溃。我希望你能服务。
答案 1 :(得分：0)
在我的情况下，已定义的访问规则已使用值＆＃34;禁止＆＃34;。我将其删除并制作无。
错误消失了，我的应用程序运行正常。
我的logcat消息是您的参考：
11-05 07：48：32.330：E / MP-Decision（1774）：num online cores：4 reqd：3 available：4 rq_depth：0.000000 hotplug_avg_load_dw：35 11-05 07：48：32.330：E / MP-Decision（1774）：DOWN cpu：3 core_idx：3 Ns：3.100000 Ts：240 total_time_down：245.000000 11-05 07：48：32.380：E / MP-Decision（1774）：num online cores：3 reqd：1 available：4 rq_depth：0.000000 hotplug_avg_load_dw：8 11-05 07：48：32.380：E / MP-Decision（1774）：DOWN cpu：2 core_idx：2 Ns：2.100000 Ts：240 total_time_down：242.000000 11-05 07：48：32.380：E / MP-Decision（1774）：DOWN cpu：1 core_idx：1 Ns：1.100000 Ts：190 total_time_down：242.000000
我的控制台错误消息供您参考：
[2014-11-05 20:22:11 - PlacePickerSample] Android发布！ [2014-11-05 20:22:11 - PlacePickerSample] adb正常运行。 [2014-11-05 20:22:11 - PlacePickerSample]执行com.facebook.samples.placepicker.PlacePickerSampleActivity活动启动 [2014-11-05 20:22:11 - PlacePickerSample]自动目标模式：无法检测设备兼容性。请选择目标设备。 [2014-11-05 20:22:15 - PlacePickerSample]将PlacePickerSample.apk上传到设备＆＃39; 1f95e524＆＃39; [2014-11-05 20:22:15 - PlacePickerSample]安装PlacePickerSample.apk ... [2014-11-05 20:22:17 - PlacePickerSample]安装因APK文件无效而失败！ [2014-11-05 20:22:17 - PlacePickerSample]请查看logcat输出以获取更多详细信息。 [2014-11-05 20:22:17 - PlacePickerSample]发布已取消！