4
首先，對不起我的英文不好，我是西班牙語（Android開發的新手）。我正在開發一個簡單的藍牙文件發送器，我一步一步基於BluetoothChat android示例。安卓藍牙許可問題
現在我有一個藍牙激活請求給用戶，並選擇是或否選項應用程序崩潰。
我有在Manifest中聲明的權限。
事情是，如果用戶選擇是激活藍牙，藍牙實際上激活，但應用程序仍然崩潰後。
我不知道ACRA是否與此衝突，我使用它是因爲mi設備是huawei u8650，我沒有發現usb驅動程序直接在eclipse中運行應用程序，所以我將.apk文件每次到SD卡。
這裏是清單：
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.BTSender"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk android:minSdkVersion="10" />
<uses-permission android:name="android.permission.BLUETOOTH"/>
<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.BLUETOOTH_ADMIN"/>
<application
android:icon="@drawable/ic_launcher"
android:label="@string/app_name" android:name="MyApplication">
<activity
android:name=".BluetoothSenderActivity"
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>
，這裏是主要的（唯一的）活動：
package com.BTSender;
import android.app.Activity;
import android.bluetooth.BluetoothAdapter;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.widget.Toast;
public class BluetoothSenderActivity extends Activity {
private BluetoothAdapter BTAdapter;
private String TAG = "BTSender";
private final int REQUEST_ENABLE_BT = 2;
@Override
public void onCreate(Bundle savedInstanceState) {
// Creating window layout
Log.v(TAG, "**Creating window**");
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
Log.v(TAG, "**Window created");
// Get the bluetooth adapter
BTAdapter = BluetoothAdapter.getDefaultAdapter();
// If null, that means bluetooth is not supported on the device
if (BTAdapter == null) {
Toast.makeText(this, R.string.BluetoothNotSupported,
Toast.LENGTH_LONG).show();
finish();
return;
}
}
@Override
public void onStart() {
// Check if Bluetooth is enabled, otherwise request user to enable it
if (!BTAdapter.isEnabled()) {
// IT NEEDS BLUETOOTH PERMISSION
// Intent to enable bluetooth, it will show the enable bluetooth
// dialog
Intent enableIntent = new Intent(
BluetoothAdapter.ACTION_REQUEST_ENABLE);
// this is to get a result if bluetooth was enabled or not
startActivityForResult(enableIntent, REQUEST_ENABLE_BT);
// It will call onActivityResult method to determine if Bluetooth
// was enabled or not
} else {
// Bluetooth is enabled
}
}
// this will be called when in onStart method startActivityForResult is
// executed
public void onActivityResult(int requestCode, int resultCode, Intent data) {
Log.v(TAG, "** onActivityResult **");
// determine from which activity
switch (requestCode) {
// if it was the request to enable Bluetooth:
case REQUEST_ENABLE_BT:
if (resultCode == Activity.RESULT_OK) {
// Bluetooth is enabled now
Log.v(TAG, "** Bluetooth is now enabled**");
} else {
// user decided not to enable Bluetooth so exit application
Log.v(TAG, "** Bluetooth is NOT enabled**");
Toast.makeText(this, R.string.BluetoothNotEnabled,
Toast.LENGTH_LONG).show();
finish();
}
}
}
}
我最近在讀答案，＃1，這是我的第一個問題。 我將不勝感激任何答案。還有提示，以提高我的發展。提前致謝！
java.lang.RuntimeException: Unable to start activity
ComponentInfo{com.BTSender/com.BTSender.BluetoothSenderActivity}:
java.lang.SecurityException: Need BLUETOOTH permission: Neither user 10076 nor current
process has android.permission.BLUETOOTH.
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1654)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1670)
at android.app.ActivityThread.access$1500(ActivityThread.java:117)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:931)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:123)
at android.app.ActivityThread.main(ActivityThread.java:3695)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:507)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:842)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:600)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.SecurityException: Need BLUETOOTH permission: Neither user 10076
nor current process has android.permission.BLUETOOTH.
at android.os.Parcel.readException(Parcel.java:1322)
at android.os.Parcel.readException(Parcel.java:1276)
at android.bluetooth.IBluetooth$Stub$Proxy.isEnabled(IBluetooth.java:496)
at android.bluetooth.BluetoothAdapter.isEnabled(BluetoothAdapter.java:351)
at com.BTSender.BluetoothSenderActivity.onStart(BluetoothSenderActivity.java:51)
at android.app.Instrumentation.callActivityOnStart(Instrumentation.java:1129)
at android.app.Activity.performStart(Activity.java:3791)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1627)
... 11 more
java.lang.SecurityException: Need BLUETOOTH permission: Neither user 10076 nor current
process has android.permission.BLUETOOTH.
at android.os.Parcel.readException(Parcel.java:1322)
at android.os.Parcel.readException(Parcel.java:1276)
at android.bluetooth.IBluetooth$Stub$Proxy.isEnabled(IBluetooth.java:496)
at android.bluetooth.BluetoothAdapter.isEnabled(BluetoothAdapter.java:351)
at com.BTSender.BluetoothSenderActivity.onStart(BluetoothSenderActivity.java:51)
at android.app.Instrumentation.callActivityOnStart(Instrumentation.java:1129)
at android.app.Activity.performStart(Activity.java:3791)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1627)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1670)
at android.app.ActivityThread.access$1500(ActivityThread.java:117)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:931)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:123)
at android.app.ActivityThread.main(ActivityThread.java:3695)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:507)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:842)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:600)
at dalvik.system.NativeStart.main(Native Method)
如果有幫助。當安裝應用程序它說三個權限，互聯網，藍牙和bluetooth_admin，它運行BluetoothAdapter.getDefaultAdapter（）;沒有問題，即使它運行藍牙請求的意圖，但它是當onActivityResult發揮作用時，應用程序崩潰就像應用程序已經失去了藍牙許可，但這很奇怪。
如果您的應用程序崩潰，您必須添加logcat錯誤與您的問題。 – user370305 2012-07-21 11:52:56
事情是，我不直接在eclipse中測試它，因爲android模擬器沒有藍牙支持，我不知道如何從設備採取logcat錯誤，我不知道是否從ACRA stacktrace是有用。 – 2012-07-21 13:52:59