I am using Froyo version to run the Application. I got a Fatal Exception when I run the project also the Application has closed unexpectedly. I have 3 Buttons in activity_main.xml file.
Main Activity Code
public class Main extends Activity {
private DropboxAPI<AndroidAuthSession> mDBApi;
final static String APP_KEY = "707tr8wwfpqrl7z";
final static String APP_SECRET = "mhyp3cxb8eeiyb6";
final static AccessType ACCESS_TYPE = AccessType.APP_FOLDER;
SharedPreferences prefs;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
prefs = PreferenceManager.getDefaultSharedPreferences(this);
String dropbox_key = prefs.getString("dropbox_key", "");
String dropbox_secret = prefs.getString("dropbox_secret", "");
if (dropbox_key.length() > 0 && dropbox_secret.length() > 0) {
AccessTokenPair access = new AccessTokenPair(dropbox_key, dropbox_secret);
AppKeyPair appKeys = new AppKeyPair(APP_KEY, APP_SECRET);
AndroidAuthSession session = new AndroidAuthSession(appKeys, ACCESS_TYPE);
session.setAccessTokenPair(access);
mDBApi = new DropboxAPI<AndroidAuthSession>(session);
}
Button link = (Button) findViewById(R.id.button1);
Button upload = (Button) findViewById(R.id.button2);
Button download = (Button) findViewById(R.id.button3);
link.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
AppKeyPair appKeys = new AppKeyPair(APP_KEY, APP_SECRET);
AndroidAuthSession session = new AndroidAuthSession(appKeys, ACCESS_TYPE);
if (mDBApi == null) {
mDBApi = new DropboxAPI<AndroidAuthSession>(session);
}
mDBApi.getSession().startAuthentication(Main.this);
}
});
upload.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
File dir = new File(getFilesDir().getAbsolutePath());
try {
PrintWriter out = new PrintWriter(new FileWriter(dir + "/test.txt"));
for (int i = 0; i < 20; i++) {
out.println("omg");
}
out.close();
File file = new File(getFilesDir().getAbsolutePath(), "/test.txt");
FileInputStream in = new FileInputStream(file);
mDBApi.putFileOverwrite("/test.txt", in, file.length(), null);
} catch (IOException e) {
e.printStackTrace();
} catch (DropboxException e) {
e.printStackTrace();
}
}
});
download.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
try {
File output = new File("/mnt/sdcard/test.txt");
OutputStream out = new FileOutputStream(output);
mDBApi.getFile("/test.txt", null, out, null);
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (DropboxException e) {
e.printStackTrace();
}
}
});
}
@Override
protected void onResume() {
super.onResume();
if (mDBApi != null && mDBApi.getSession().authenticationSuccessful()) {
try {
mDBApi.getSession().finishAuthentication();
AccessTokenPair tokens = mDBApi.getSession().getAccessTokenPair();
Editor editor = prefs.edit();
editor.putString("dropbox_key", tokens.key);
editor.putString("dropbox_secret", tokens.secret);
editor.commit();
} catch (IllegalStateException e) {
Log.i("DbAuthLog", "Error authenticating", e);
}
}
}
}
Manifest code
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.dropboxdemo"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="10"
android:targetSdkVersion="15" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<application
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name=".Main"
android:label="@string/title_activity_main" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
<data android:scheme="db-707tr8wwfpqrl7z" />
</intent-filter>
</activity>
<activity
android:name="com.dropbox.client2.android.AuthActivity"
android:configChanges="orientation|keyboard"
android:launchMode="singleTask" >
<intent-filter>
<data android:scheme="db-707tr8wwfpqrl7z" />
<action android:name="android.intent.action.VIEW" />
<category android:name="android.intent.category.BROWSABLE" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
</application>
</manifest>
LogCat Error
08-17 10:47:43.935: E/AndroidRuntime(346): FATAL EXCEPTION: main
08-17 10:47:43.935: E/AndroidRuntime(346): java.lang.ExceptionInInitializerError
08-17 10:47:43.935: E/AndroidRuntime(346): atjava.lang.Class.newInstanceImpl(Native Method)
08-17 10:47:43.935: E/AndroidRuntime(346): at java.lang.Class.newInstance(Class.java:1409)
08-17 10:47:43.935: E/AndroidRuntime(346): at android.app.Instrumentation.newActivity(Instrumentation.java:1021)
08-17 10:47:43.935: E/AndroidRuntime(346): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1561)
08-17 10:47:43.935: E/AndroidRuntime(346): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1663)
08-17 10:47:43.935: E/AndroidRuntime(346): at android.app.ActivityThread.access$1500(ActivityThread.java:117)
08-17 10:47:43.935: E/AndroidRuntime(346): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:931)
08-17 10:47:43.935: E/AndroidRuntime(346): at android.os.Handler.dispatchMessage(Handler.java:99)
08-17 10:47:43.935: E/AndroidRuntime(346): at android.os.Looper.loop(Looper.java:123)
08-17 10:47:43.935: E/AndroidRuntime(346): at android.app.ActivityThread.main(ActivityThread.java:3683)
Any solution to clear this Error ?
