我尝试此代码，但我总是显示错误权限被拒绝。我尝试下面的代码。
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.hope.project"
android:versionCode="1"
android:versionName="1.0">
<uses-sdk android:minSdkVersion="8" android:targetSdkVersion="16" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
<uses-permission android:name="android.permission.READ_PHONE_STATE"/>
<uses-permission android:name="android.permission.READ_PHONE_STATE" />
<uses-permission android:name="android.permission.CAMERA" />
<uses-permission android:name="android.permission.VIBRATE" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_LOCATION_EXTRA_COMMANDS" />
<uses-permission android:name="android.permission.RECEIVE_SMS" />
<uses-permission android:name="android.permission.RECORD_AUDIO" />
<uses-permission android:name="android.permission.RECORD_VIDEO"/>
<uses-permission android:name="android.permission.MODIFY_AUDIO_SETTINGS" />
<uses-permission android:name="android.permission.READ_CONTACTS" />
<uses-permission android:name="android.permission.WRITE_CONTACTS" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.BROADCAST_STICKY" />
<uses-permission android:name="com.android.browser.permission.WRITE_HISTORY_BOOKMARKS"/>
<application android:label="@string/app_name"
android:icon="@drawable/ic_launcher"
android:theme="@style/AppTheme">
<activity android:name="com.hope.project.MainActivity" android:label="@string/app_name"
android:theme="@android:style/Theme.Black.NoTitleBar"
android:configChanges="keyboardHidden|orientation">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
我显示错误：
01-25 17:24:17.853: DEBUG/szipinf(12612): Initializing inflate state
01-25 17:24:17.853: DEBUG/szipinf(12612): Initializing zlib to inflate
01-25 17:24:19.201: DEBUG/dalvikvm(338): GC_EXPLICIT freed 17K, 5% free 6276K/6599K, paused 3ms+115ms
01-25 17:24:25.424: DEBUG/dalvikvm(206): GC_EXPLICIT freed 153K, 6% free 6730K/7111K, paused 4ms+94ms
01-25 17:25:11.912: DEBUG/SntpClient(71): request time failed: java.net.SocketException: Address family not supported by protocol
01-25 17:25:24.961: VERBOSE/log(12612): onPageFinished: file:///android_asset/www/index.html#goToNode/2
01-25 17:25:27.276: VERBOSE/log(12612): on ovverRide about:blank
01-25 17:25:44.464: VERBOSE/log(12612): onPageFinished: file:///android_asset/www/index.html#goToNode/328
01-25 17:26:25.692: VERBOSE/log(12612): onPageFinished: file:///android_asset/www/index.html#goToNode/10
01-25 17:26:25.901: DEBUG/dalvikvm(12612): GC_CONCURRENT freed 619K, 10% free 7242K/8007K, paused 4ms+3ms
01-25 17:26:33.711: VERBOSE/log(12612): login main url http://imprintingdesign.com/hiren_testing/TestHopeNew/testHope/pdf/TheMountain.mp4
01-25 17:26:33.781: VERBOSE/log(12612): login main url[0] http://imprintingdesign.com/hiren_testing/TestHopeNew/testHope/pdf/TheMountain.mp4
01-25 17:26:35.631: ERROR/Error:(12612): /mnt/sdcard/Downloads/TheMountain.mp4 (Permission denied)
我下载的课程如下：
public class MainActivity extends Activity {
WebView myWebView;
TextView mDisplay;
AsyncTask<Void, Void, Void> mRegisterTask;
String Message;
String deviceId;
String regId;
IntentFilter gcmFilter;
SharedPreferences sharedPref;
private final String PATH = "/sdcard/download/";
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
myWebView = (WebView)findViewById(R.id.webView1);
final JavaScriptInterface myJavaScriptInterface = new JavaScriptInterface(
this);
myWebView.addJavascriptInterface(myJavaScriptInterface,
"AndroidFunction");
WebSettings settings = myWebView.getSettings();
settings.setJavaScriptEnabled(true);
settings.setDatabaseEnabled(true);
settings.setDomStorageEnabled(true);
settings.setAllowFileAccess(true);
settings.setBuiltInZoomControls(true);
settings.setUseWideViewPort(true);
settings.setJavaScriptCanOpenWindowsAutomatically(true);
settings.setLoadWithOverviewMode(true);
myWebView.setScrollBarStyle(WebView.SCROLLBARS_OUTSIDE_OVERLAY);
myWebView.setWebViewClient(new WebViewClient() {
public boolean shouldOverrideUrlLoading(WebView view, String url) {
//handle stuff here
//e.g. view.loadUrl(url);
Log.v("log"," on ovverRide " + url);
return true;
}
public void onPageFinished(WebView view, String url) {
//dismiss the indeterminate progress dialog
Log.v("log", "onPageFinished: " + url);
myWebView.setEnabled(false);
}
});
myWebView.loadUrl("file:///android_asset/www/index.html");
}
@Override
protected void onDestroy() {
super.onDestroy();
}
public class JavaScriptInterface {
Context mContext;
JavaScriptInterface(Context c) {
mContext = c;
}
public void DownloadUrl(String url) {
Log.v("log","login main url " + url);
String file_url = url;
new DownloadFileFromURL().execute(file_url);
//new DownloadFromUrl(v,g);
/*String url_new = "http://"+url;
Intent i = new Intent(Intent.ACTION_VIEW);
i.setData(Uri.parse(url_new));
startActivity(i);*/
}
}
class DownloadFileFromURL extends AsyncTask<String, String, String> {
/**
* Before starting background thread
* Show Progress Bar Dialog
* */
@Override
protected void onPreExecute() {
super.onPreExecute();
//showDialog(progress_bar_type);
}
/**
* Downloading file in background thread
* */
@Override
protected String doInBackground(String... f_url) {
int count;
Log.v("log","login main url[0] " + f_url[0]);
try {
URL url = new URL(f_url[0]);
String name = f_url[0].substring(f_url[0].lastIndexOf("/") + 1);
URLConnection conection = url.openConnection();
conection.connect();
// getting file length
int lenghtOfFile = conection.getContentLength();
// input stream to read file - with 8k buffer
InputStream input = new BufferedInputStream(url.openStream(), 1024 * 5);
// Output stream to write file
//OutputStream output = new FileOutputStream("/sdcard/downloadedfile.jpg");
OutputStream output = new FileOutputStream(Environment.getExternalStorageDirectory() + "/Downloads/"
+ name);
byte data[] = new byte[5 * 1024];
long total = 0;
while ((count = input.read(data)) != -1) {
total += count;
// publishing the progress....
// After this onProgressUpdate will be called
publishProgress(""+(int)((total*100)/lenghtOfFile));
// writing data to file
output.write(data, 0, count);
}
// flushing output
output.flush();
// closing streams
output.close();
input.close();
} catch (Exception e) {
Log.e("Error: ", e.getMessage());
}
return null;
}
/**
* Updating progress bar
* */
protected void onProgressUpdate(String... progress)
{
// setting progress percentage
//pDialog.setProgress(Integer.parseInt(progress[0]));
}
/**
* After completing background task
* Dismiss the progress dialog
* **/
@Override
protected void onPostExecute(String file_url) {
// dismiss the dialog after the file was downloaded
//dismissDialog(progress_bar_type);
// Displaying downloaded image into image view
// Reading image path from sdcard
//String imagePath = Environment.getExternalStorageDirectory().toString() + "/downloadedfile.jpg";
// setting downloaded into image view
//my_image.setImageDrawable(Drawable.createFromPath(imagePath));
}
}
答案 0 :(得分：0)
在AndroidManifest.xml中，选择编辑器底部的“Permissions”选项卡（Manifest - Application - Permissions - Instrumentation - AndroidManifest.xml），然后选择“Add ...”，“使用权限”并选择所需的右侧下拉菜单的权限，或者只需复制必要的粘贴（例如您需要的“android.permission.INTERNET”权限）。
有关详情，请点击此链接：http://developer.android.com/reference/android/Manifest.permission.html