example: Fix cannot create temp file

Author: ypresto

example/src/main/AndroidManifest.xml

@@ -2,6 +2,8 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="net.ypresto.androidtranscoder.example" >
 
+    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
+
     <application
         android:allowBackup="true"
         android:icon="@drawable/ic_launcher"

example/src/main/java/net/ypresto/androidtranscoder/example/TranscoderActivity.java

@@ -48,6 +48,7 @@ protected void onActivityResult(int requestCode, int resultCode, Intent data) {
                     try {
                         file = File.createTempFile("transcode_test", ".mp4", getExternalFilesDir(null));
                     } catch (IOException e) {
+                        Log.e(TAG, "Failed to create temporary file.", e);
                         Toast.makeText(this, "Failed to create temporary file.", Toast.LENGTH_LONG).show();
                         return;
                     }