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所以有一個不錯的博客使用下面的代碼識別應用安裝
public class Installation {
private static String sID = null;
private static final String INSTALLATION = "INSTALLATION";
public synchronized static String id(Context context) {
if (sID == null) {
File installation = new File(context.getFilesDir(), INSTALLATION);
try {
if (!installation.exists())
writeInstallationFile(installation);
sID = readInstallationFile(installation);
} catch (Exception e) {
throw new RuntimeException(e);
}
}
return sID;
}
private static String readInstallationFile(File installation) throws IOException {
RandomAccessFile f = new RandomAccessFile(installation, "r");
byte[] bytes = new byte[(int) f.length()];
f.readFully(bytes);
f.close();
return new String(bytes);
}
private static void writeInstallationFile(File installation) throws IOException {
FileOutputStream out = new FileOutputStream(installation);
String id = UUID.randomUUID().toString();
out.write(id.getBytes());
out.close();
}
}
在不同的Java類,我有一個的WebView去一個URL識別應用安裝,如圖
public class Notes extends Activity {
WebView mWebView;
/** Called when the activity is first created. */
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.timsnotes);
mWebView = (WebView) findViewById(R.id.webview3);
mWebView.getSettings().setJavaScriptEnabled(true);
mWebView.loadUrl("http://www.somedomain.com/notes.php?phoneid=" + "sID" + "");
mWebView.setWebViewClient(new HelloWebViewClient());
}
但所有它傳遞的是文本sID。有沒有一個使用權限我缺少訪問sID?