我正在制作 android 应用程序，它将简单地从 sdcard（电话库）中选择一个图像并将其存储到 Google 驱动器。我在这方面做了很多努力，我从 Google 开发人员在drive quick start上提供的代码中获得了帮助。我在我的 main.xml 文件中创建了一个 Button 控件，当单击此按钮时，它会进入手机图库，当我选择图片时，什么也没有发生
这是我的 Eclipse IDE 中的 Log Cat
05-13 05:05:47.890: D/gralloc_goldfish(16802): Emulator without GPU emulation detected.
05-13 05:08:00.600: W/ActivityThread(17711): Application com.camera is waiting for the debugger on port 8100...
05-13 05:08:00.660: I/System.out(17711): Sending WAIT chunk
05-13 05:08:00.690: I/dalvikvm(17711): Debugger is active
05-13 05:08:00.700: I/System.out(17711): Debugger has connected
05-13 05:08:00.700: I/System.out(17711): waiting for debugger to settle...
05-13 05:08:00.980: I/System.out(17711): waiting for debugger to settle...
05-13 05:08:01.180: I/System.out(17711): waiting for debugger to settle...
05-13 05:08:01.389: I/System.out(17711): waiting for debugger to settle...
05-13 05:08:01.590: I/System.out(17711): waiting for debugger to settle...
05-13 05:08:01.790: I/System.out(17711): waiting for debugger to settle...
05-13 05:08:01.990: I/System.out(17711): waiting for debugger to settle...
05-13 05:08:02.190: I/System.out(17711): waiting for debugger to settle...
05-13 05:08:02.400: I/System.out(17711): waiting for debugger to settle...
05-13 05:08:02.610: I/System.out(17711): debugger has settled (1374)
05-13 05:08:05.090: I/Choreographer(17711): Skipped 40 frames! The application may be doing too much work on its main thread.
05-13 05:08:05.280: D/gralloc_goldfish(17711): Emulator without GPU emulation detected.
05-13 05:08:10.120: I/Choreographer(17711): Skipped 47 frames! The application may be doing too much work on its main thread.
05-13 05:08:13.369: I/Choreographer(17711): Skipped 89 frames! The application may be doing too much work on its main thread.
05-13 05:08:14.699: D/dalvikvm(17711): GC_FOR_ALLOC freed 52K, 8% free 2544K/2752K, paused 187ms, total 220ms
05-13 05:08:14.879: I/dalvikvm-heap(17711): Grow heap (frag case) to 4.455MB for 1920016-byte allocation
05-13 05:08:15.029: D/dalvikvm(17711): GC_FOR_ALLOC freed 4K, 5% free 4415K/4628K, paused 141ms, total 141ms
05-13 05:08:15.059: W/CursorWrapperInner(17711): Cursor finalized without prior close()
05-13 05:08:15.329: D/dalvikvm(17711): GC_CONCURRENT freed <1K, 5% free 4415K/4628K, paused 13ms+34ms, total 303ms
05-13 05:08:16.469: I/Choreographer(17711): Skipped 1536 frames! The application may be doing too much work on its main thread.
05-13 05:08:17.159: I/Choreographer(17711): Skipped 268 frames! The application may be doing too much work on its main thread.
05-13 05:08:18.049: I/Choreographer(17711): Skipped 41 frames! The application may be doing too much work on its main thread.
05-13 05:08:22.580: W/AbstractGoogleClient(17711): Application name is not set. Call Builder#setApplicationName.
05-13 05:08:22.970: I/Choreographer(17711): Skipped 82 frames! The application may be doing too much work on its main thread.
这是我的 Java 代码
import java.io.IOException;
import com.camera.R;
import com.google.api.client.extensions.android.http.AndroidHttp;
import com.google.api.client.googleapis.extensions.android.gms.auth.GoogleAccountCredential;
import com.google.api.client.googleapis.extensions.android.gms.auth.UserRecoverableAuthIOException;
import com.google.api.client.http.FileContent;
import com.google.api.client.json.gson.GsonFactory;
import com.google.api.services.drive.Drive;
import com.google.api.services.drive.DriveScopes;
import com.google.api.services.drive.model.File;
import android.accounts.AccountManager;
import android.app.Activity;
import android.content.Intent;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.provider.MediaStore;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;
public class MainActivity extends Activity{
private static final int REQUEST_ACCOUNT_PICKER = 1;
private static final int SELECT_PICTURE = 3;
private static final int REQUEST_AUTHORIZATION = 2;
private static Drive service;
private GoogleAccountCredential credential;
private static Uri selectedImageUri;
private String selectedImagePath;
private ImageView img;
private TextView tv;
Intent pictureintent;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
img = (ImageView)findViewById(R.id.ImageView01);
((Button) findViewById(R.id.Button01)).setOnClickListener(new OnClickListener() {
public void onClick(View v) {
pictureintent = new Intent();
pictureintent.setType("image/jpeg");
pictureintent.setAction(Intent.ACTION_GET_CONTENT);
pictureintent.putExtra(MediaStore.EXTRA_OUTPUT, selectedImageUri);
startActivityForResult(pictureintent, SELECT_PICTURE);
}
});
}
public void onActivityResult(int requestCode, int resultCode, Intent data) {
switch(requestCode){
case REQUEST_ACCOUNT_PICKER:
if (resultCode == RESULT_OK && data != null && data.getExtras() != null) {
String accountName = data.getStringExtra(AccountManager.KEY_ACCOUNT_NAME);
if (accountName != null) {
credential.setSelectedAccountName(accountName);
service = getDriveService(credential);
saveFileToDrive();
}
}
break;
case REQUEST_AUTHORIZATION:
if (resultCode == Activity.RESULT_OK) {
saveFileToDrive();
} else {
startActivityForResult(credential.newChooseAccountIntent(), REQUEST_ACCOUNT_PICKER);
}
case SELECT_PICTURE:
if (resultCode == Activity.RESULT_OK) {
selectedImageUri = data.getData();
selectedImagePath = getPath(selectedImageUri);
tv = (TextView) findViewById(R.id.text1);
tv.setText("File Path: " + selectedImagePath);
//showToast("File Path: " + selectedImagePath);
//System.out.println("Image Path : " + selectedImagePath);
img.setImageURI(selectedImageUri);
startpictureIntent();
}
}
}
private Drive getDriveService(GoogleAccountCredential credential) {
return new Drive.Builder(AndroidHttp.newCompatibleTransport(), new GsonFactory(), credential)
.build();
}
public void startpictureIntent(){
credential = GoogleAccountCredential.usingOAuth2(this, DriveScopes.DRIVE);
startActivityForResult(credential.newChooseAccountIntent(), REQUEST_ACCOUNT_PICKER);
}
private void saveFileToDrive() {
Thread t = new Thread(new Runnable() {
@Override
public void run() {
try {
// File's binary content
java.io.File fileContent = new java.io.File(selectedImageUri.getPath());
FileContent mediaContent = new FileContent("image/jpeg", fileContent);
// File's metadata.
File body = new File();
body.setTitle(fileContent.getName());
body.setMimeType("image/jpeg");
File file = service.files().insert(body, mediaContent).execute();
if(file != null) {
showToast("Photo uploaded: " + file.getTitle());
}
}catch (UserRecoverableAuthIOException e) {
startActivityForResult(e.getIntent(), REQUEST_AUTHORIZATION);
} catch (IOException e) {
e.printStackTrace();
}
}
});
t.start();
}
public String getPath(Uri uri) {
String[] projection = { MediaStore.Images.Media.DATA };
Cursor cursor = getContentResolver().query(selectedImageUri, projection, null, null, null);
int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
cursor.moveToFirst();
return cursor.getString(column_index);
}
public void showToast(final String toast) {
runOnUiThread(new Runnable() {
@Override
public void run() {
Toast.makeText(getApplicationContext(), toast, Toast.LENGTH_LONG).show();
}
});
}
}
最后这是我的 Android Manifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.camera"
android:versionCode="1"
android:versionName="1.0" >
<uses-permission android:name="android.permission.GET_ACCOUNTS" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.USE_CREDENTIALS" />
<uses-permission android:name="android.permission.READ_SYNC_STATS" />
<uses-permission android:name="android.permission.READ_SYNC_SETTINGS" />
<uses-permission android:name="android.permission.WRITE_SYNC_SETTINGS" />
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="17" />
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<meta-data android:name="com.google.android.apps.drive.APP_ID" android:value="id=829672----" />
<intent-filter>
<action android:name="android.intent.action.GoogleDrive" />
<action android:name="com.google.android.apps.drive.DRIVE_OPEN" />
<data android:mimeType="application/vnd.google-apps.drive-sdk.829672----" />
<data android:mimeType="image/png" />
<data android:mimeType="image/jpeg" />
<data android:mimeType="image/jpg" />
</intent-filter>
<activity
android:name="com.example.drivequickstart.MainActivity"
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>
任何帮助将不胜感激。提前致谢