我试图开始另一项活动，但当我在主要活动和velocidad的活动之间进行几次更改时，主要活动在onCreate中崩溃。
我找到的唯一解决方案是＆＃34; finish（）;＆＃34;当我从主要去Velocidad，但我需要保持主要在线。
错误：
05-01 19:21:07.631 19529-19529/nitro.control E/AndroidRuntime: FATAL EXCEPTION: main
Process: nitro.control, PID: 19529
java.lang.RuntimeException: Unable to start activity ComponentInfo{nitro.control/nitro.control.Main}: android.view.InflateException: Binary XML file line #10: Binary XML file line #2: Error inflating class <unknown>
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3254)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3350)
at android.app.ActivityThread.access$1100(ActivityThread.java:222)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1795)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:158)
at android.app.ActivityThread.main(ActivityThread.java:7229)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1230)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1120)
Caused by: android.view.InflateException: Binary XML file line #10: Binary XML file line #2: Error inflating class <unknown>
at android.view.LayoutInflater.inflate(LayoutInflater.java:551)
at android.view.LayoutInflater.inflate(LayoutInflater.java:429)
at android.view.LayoutInflater.inflate(LayoutInflater.java:380)
at android.support.v7.app.AppCompatDelegateImplV7.setContentView(AppCompatDelegateImplV7.java:276)
at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:139)
at nitro.control.Main.onCreate(Main.java:54)
at android.app.Activity.performCreate(Activity.java:6876)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1135)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3207)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3350)
at android.app.ActivityThread.access$1100(ActivityThread.java:222)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1795)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:158)
at android.app.ActivityThread.main(ActivityThread.java:7229)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1230)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1120)
Caused by: android.view.InflateException: Binary XML file line #2: Error inflating class <unknown>
at android.view.LayoutInflater.createView(LayoutInflater.java:657)
at com.android.internal.policy.PhoneLayoutInflater.onCreateView(PhoneLayoutInflater.java:58)
at android.view.LayoutInflater.onCreateView(LayoutInflater.java:706)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:774)
at android.view.LayoutInflater.parseInclude(LayoutInflater.java:966)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:843)
at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:810)
at android.view.LayoutInflater.inflate(LayoutInflater.java:527)
at android.view.LayoutInflater.inflate(LayoutInflater.java:429)
at android.view.LayoutInflater.inflate(LayoutInflater.java:380)
at android.support.v7.app.AppCompatDelegateImplV7.setContentView(AppCompatDelegateImplV7.java:276)
at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:139)
at nitro.control.Main.onCreate(Main.java:54)
at android.app.Activity.performCreate(Activity.java:6876)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1135)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3207)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3350)
at android.app.ActivityThread.access$1100(ActivityThread.java:222)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1795)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:158)
at android.app.ActivityThread.main(ActivityThread.java:7229)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1230)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1120)
Caused by: java.lang.reflect.InvocationTargetException
at java.lang.reflect.Constructor.newInstance(Native Method)
at android.view.LayoutInflater.createView(LayoutInflater.java:631)
at com.android.internal.policy.PhoneLayoutInflater.onCreateView(PhoneLayoutInflater.java:58)
at android.view.LayoutInflater.onCreateView(LayoutInflater.java:706)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:774)
at android.view.LayoutInflater.parseInclude(LayoutInflater.java:966)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:843)
at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:810)
at android.view.LayoutInflater.inflate(LayoutInflater.java:527)
at android.view.LayoutInflater.inflate(LayoutInflater.java:429)
at android.view.LayoutInflater.inflate(LayoutInflater.java:380)
at android.support.v7.app.AppCompatDelegateImplV7.setContentView(AppCompatDelegateImplV7.java:276)
at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:139)
at nitro.control.Main.onCreate(Main.java:54)
at android.app.Activity.performCreate(Activity.java:6876)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1135)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3207)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3350)
at android.app.ActivityThread.access$1100(ActivityThread.java:222)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1795)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:158)
at android.app.ActivityThread.main(ActivityThread.java:7229)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1230)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1120)
Caused by: java.lang.OutOfMemoryError: Failed to allocate a 35443212 byte allocation with 16766160 free bytes and 19MB until OOM
at dalvik.system.VMRuntime.newNonMovableArray(Native Method)
at android.graphics.BitmapFactory.nativeDecodeAsset(Native Method)
at android.graphics.BitmapFactory.decodeStream(BitmapFactory.java:856)
at android.graphics.BitmapFactory.decodeResourceStream(BitmapFactory.java:675)
at android.graphics.drawable.Drawable.createFromResourceStream(Drawable.java:2228)
at android.content.res.Resources.loadDrawableForCookie(Resources.java:4211)
at android.content.res.Resources.loadDrawable(Resources.java:4085)
at android.content.res.Resources.loadDrawable(Resources.java:3935)
at android.content.res.TypedArray.getDrawable(TypedArray.java:886)
at android.view.View.<init>(View.java:4225)
at android.view.ViewGroup.<init>(ViewGroup.java:589)
at android.widget.RelativeLayout.<init>(RelativeLayout.java:249)
at android.widget.RelativeLayout.<init>(RelativeLayout.java:245)
at android.widget.RelativeLayout.<init>(RelativeLayout.java:241)
at java.lang.reflect.Constructor.newInstance(Native Method)
at android.view.LayoutInflater.createView(LayoutInflater.java:631)
at com.android.internal.policy.PhoneLayoutInflater.onCreateView(PhoneLayoutInflater.java:58)
at android.view.LayoutInflater.onCreateView(LayoutInflater.java:706)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:774)
at android.view.LayoutInflater.parseInclude(LayoutInflater.java:966)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:843)
at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:810)
at android.view.LayoutInflater.inflate(LayoutInflater.java:527)
at android.view.LayoutInflater.inflate(LayoutInflater.java:429)
at android.view.LayoutInflater.inflate(LayoutInflater.java:380)
at android.support.v7.app.AppCompatDelegateImplV7.setContentView(AppCompatDelegateImplV7.java:276)
at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:139)
at nitro.control.Main.onCreate(Main.java:54)
at android.app.Activity.performCreate(Activity.java:6876)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1135)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3207)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3350)
at android.app.ActivityThread.access$1100(ActivityThread.java:222)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1795)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:158)
at android.app.ActivityThread.main(ActivityThread.java:7229)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1230)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1120)
错误行：
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Main.java：
package nitro.control;
import android.annotation.TargetApi;
import android.app.ProgressDialog;
import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice;
import android.bluetooth.BluetoothSocket;
import android.content.Intent;
import android.graphics.drawable.Drawable;
import android.os.AsyncTask;
import android.os.Build;
import android.os.Bundle;
import android.support.design.widget.FloatingActionButton;
import android.support.design.widget.Snackbar;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.util.Log;
import android.view.View;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Set;
import java.util.UUID;
public class Main extends AppCompatActivity {
Button bt, history, cfg, vel;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
bt = (Button) findViewById(R.id.bt);
history = (Button) findViewById(R.id.hist);
cfg = (Button) findViewById(R.id.cfg);
vel = (Button) findViewById(R.id.vel);
vel.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent vel = new Intent(getApplicationContext(), Velocidad.class);
startActivity(vel);
overridePendingTransition(R.anim.left_in, R.anim.left_out);
finish(); // I want to don't use this line
}
});
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
}
Velocidad.java：
package nitro.control;
import android.app.Activity;
import android.content.Intent;
import android.content.pm.ActivityInfo;
import android.os.Bundle;
import android.os.CountDownTimer;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;
import java.util.Random;
public class Velocidad extends Activity {
Button main;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_velocidad);
this.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
main = (Button) findViewById(R.id.main);
main.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent main = new Intent(getApplicationContext(), Main.class);
startActivity(main);
overridePendingTransition(R.anim.right_in, R.anim.right_out);
finish();
}
});
}
}
activity_main.xml中：
<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:context="nitro.control.Main">
<include layout="@layout/content_main" />
</android.support.design.widget.CoordinatorLayout>
content_main.xml：
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
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:paddingTop="@dimen/activity_vertical_margin"
app:layout_behavior="@string/appbar_scrolling_view_behavior"
tools:context="nitro.control.Main"
tools:showIn="@layout/activity_main"
android:background="@drawable/fondo">
<ImageView
android:layout_width="125dp"
android:layout_height="wrap_content"
android:id="@+id/logo"
android:src="@drawable/logo"
android:layout_alignParentTop="true"
android:layout_marginRight="15dp"
android:layout_alignParentRight="true" />
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/bt"
android:layout_above="@+id/hist"
android:layout_centerHorizontal="true"
android:layout_marginBottom="70dp"
android:background="@drawable/state_connect"
android:enabled="true"
android:clickable="true" />
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/hist"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:background="@drawable/state_history"
android:enabled="true"
android:clickable="true" />
<Button
android:layout_width="130dp"
android:layout_height="53dp"
android:id="@+id/cfg"
android:layout_below="@+id/hist"
android:layout_marginTop="75dp"
android:background="@drawable/state_cfg"
android:layout_alignLeft="@+id/hist"
android:layout_alignStart="@+id/hist"
android:layout_alignRight="@+id/hist"
android:layout_alignEnd="@+id/hist"
android:clickable="true"
android:enabled="true" />
<Button
android:layout_width="30dp"
android:layout_height="wrap_content"
android:id="@+id/vel"
android:layout_centerVertical="true"
android:layout_alignParentRight="true"
android:layout_alignParentEnd="true"
android:background="@drawable/der"
android:enabled="true"
android:clickable="true" />
</RelativeLayout>
activity_velocidad.xml：
<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:context="nitro.control.Main">
<include layout="@layout/content_velocidad" />
</android.support.design.widget.CoordinatorLayout>
content_velocidad.xml：
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
xmlns:gauge="pl.pawelkleczkowski.customgauge.CustomGauge"
android:orientation="vertical"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingTop="@dimen/activity_vertical_margin"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="@string/appbar_scrolling_view_behavior"
tools:context="nitro.control.Velocidad"
tools:showIn="@layout/activity_velocidad"
android:background="@drawable/fondo">
<ImageView
android:layout_width="125dp"
android:layout_height="wrap_content"
android:id="@+id/logo"
android:src="@drawable/logo"
android:layout_alignParentRight="true"
android:layout_alignParentEnd="false"
android:layout_alignParentTop="true"
android:layout_marginRight="15dp" />
<Button
android:layout_width="30dp"
android:layout_height="wrap_content"
android:id="@+id/main"
android:layout_centerVertical="true"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="false"
android:clickable="true"
android:enabled="true"
android:background="@drawable/izq" />
</RelativeLayout>
的AndroidManifest.xml：
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="nitro.control">
<uses-permission android:name="android.permission.BLUETOOTH" />
<uses-permission android:name="android.permission.BLUETOOTH_ADMIN" />
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<activity
android:name=".Main"
android:label="@string/app_name"
android:theme="@style/AppTheme.NoActionBar">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name=".Velocidad"
android:label="Control - Nitro"
android:theme="@style/AppTheme.NoActionBar">
</activity>
</application>
</manifest>