shareButton = (Button)findViewById(R.id.share_btn);
ScreenShotHold = (ImageView)findViewById(R.id.imageView);
bytearrayoutputstream = new ByteArrayOutputStream();
shareButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View OnclickView) {
view = OnclickView.getRootView();
view.setDrawingCacheEnabled(true);
bitmap = view.getDrawingCache();
ScreenShotHold.setImageBitmap(bitmap);
String foldername = "WhatsThis";
mkFolder(foldername);
try
{
FileOutputStream out = new FileOutputStream(file);
bitmap.compress(Bitmap.CompressFormat.JPEG,8000,out);
out.flush();
out.close();
Log.d("WhatsThisApp","Screenshot Saved!");
}
catch (Exception e)
{
e.printStackTrace();
Log.d("WhatsThisApp","Screenshot not Saved!");
}
Intent sharingIntent = new Intent(Intent.ACTION_SEND);
Uri screenshotUri = Uri.parse("android.resource://" + getPackageName()
+ "/drawable/" + "ic_launcher");
sharingIntent.setAction(Intent.ACTION_SEND);
sharingIntent.setType("image/jpeg");
sharingIntent.putExtra(Intent.EXTRA_STREAM, screenshotUri);
sharingIntent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
startActivity(Intent.createChooser(sharingIntent, "Share image using"));
}
});
}
public static final int MY_PERMISSIONS_REQUEST_WRITE_EXTERNAL_STORAGE = 1;
public int mkFolder(String folderName){ // make a folder under Environment.DIRECTORY_DCIM
String state = Environment.getExternalStorageState();
if (!Environment.MEDIA_MOUNTED.equals(state)){
Log.d("myAppName", "Error: external storage is unavailable");
return 0;
}
if (Environment.MEDIA_MOUNTED_READ_ONLY.equals(state)) {
Log.d("myAppName", "Error: external storage is read only.");
return 0;
}
Log.d("myAppName", "External storage is not read only or unavailable");
if (ContextCompat.checkSelfPermission(this, // request permission when it is not granted.
Manifest.permission.WRITE_EXTERNAL_STORAGE)
!= PackageManager.PERMISSION_GRANTED) {
Log.d("myAppName", "permission:WRITE_EXTERNAL_STORAGE: NOT granted!");
// Should we show an explanation?
if (ActivityCompat.shouldShowRequestPermissionRationale(this,
Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
// Show an explanation to the user *asynchronously* -- don't block
// this thread waiting for the user's response! After the user
// sees the explanation, try again to request the permission.
} else {
// No explanation needed, we can request the permission.
ActivityCompat.requestPermissions(this,
new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE},
MY_PERMISSIONS_REQUEST_WRITE_EXTERNAL_STORAGE);
// MY_PERMISSIONS_REQUEST_READ_CONTACTS is an
// app-defined int constant. The callback method gets the
// result of the request.
}
}
File folder = new File(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES),folderName);
int result = 0;
if (folder.exists()) {
Log.d("myAppName","folder exist:"+folder.toString());
result = 2; // folder exist
}else{
try {
if (folder.mkdirs()) {
Log.d("myAppName", "folder created:" + folder.toString());
result = 1; // folder created
} else {
Log.d("myAppName", "creat folder fails:" + folder.toString());
result = 0; // creat folder fails
}
}catch (Exception ecp){
ecp.printStackTrace();
}
}
return result;
}
我正在尝试在Android上保存屏幕截图，以便它将出现在手机照片库中。文件路径创建得很好，但用于保存屏幕截图的try / catch语句总是以未保存的文件结束。我正在使用Log.d来返回代码中发生的事情。我试图发布Logcat的截图，但显然我没有足够的声誉来做这些事情......
我正在使用物理设备来测试应用程序。我还要求在清单中写入外部媒体。我现在有点陷入困境。
更新：
@Override
public void onClick(View OnclickView) {
view = OnclickView.getRootView();
view.setDrawingCacheEnabled(true);
bitmap = view.getDrawingCache();
// ScreenShotHold.setImageBitmap(bitmap);
String foldername = "WhatsThis";
mkFolder(foldername);
File file = mkFolder(foldername);
try
{
file.createNewFile();
fileoutputstream = new FileOutputStream(file);
fileoutputstream.write(bytearrayoutputstream.toByteArray());
fileoutputstream.close();
Log.d("WhatsThisApp","Screenshot Saved!");
}
catch (Exception e)
{
e.printStackTrace();
Log.d("WhatsThisApp","Screenshot not Saved!");
}
Intent sharingIntent = new Intent(Intent.ACTION_SEND);
Uri screenshotUri = Uri.parse("android.resource://" + getPackageName()
+ "/drawable/" + "ic_launcher");
sharingIntent.setAction(Intent.ACTION_SEND);
sharingIntent.setType("image/jpeg");
sharingIntent.putExtra(Intent.EXTRA_STREAM, screenshotUri);
sharingIntent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
startActivity(Intent.createChooser(sharingIntent, "Share image using"));
}
});
}
public static final int MY_PERMISSIONS_REQUEST_WRITE_EXTERNAL_STORAGE = 1;
public File mkFolder(String folderName){ // make a folder under Environment.DIRECTORY_DCIM
String state = Environment.getExternalStorageState();
int result = 0;
if (!Environment.MEDIA_MOUNTED.equals(state)){
Log.d("myAppName", "Error: external storage is unavailable");
result = 0;
}
if (Environment.MEDIA_MOUNTED_READ_ONLY.equals(state)) {
Log.d("myAppName", "Error: external storage is read only.");
result = 0;
}
Log.d("myAppName", "External storage is not read only or unavailable");
File folder = new File(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES),folderName);
if (folder.exists()) {
Log.d("myAppName","folder exist:"+folder.toString());
result = 2; // folder exist
}else{
try {
if (folder.mkdirs()) {
Log.d("myAppName", "folder created:" + folder.toString());
result = 1; // folder created
} else {
Log.d("myAppName", "creat folder fails:" + folder.toString());
result = 0; // creat folder fails
}
}catch (Exception ecp){
ecp.printStackTrace();
}
}
return folder;
}
好的......我还在记录“说截图没有保存！” 已启用应用程序存储权限。
这是我的LOGS
11-26 16:56:13.527 28399-28454/? I/OpenGLRenderer: Initialized EGL, version 1.4
11-26 16:56:13.527 28399-28454/? D/OpenGLRenderer: Swap behavior 1
11-26 16:56:13.541 28399-28449/? W/AnalyticsUserIDStore: initStore should have been called before calling setUserID
11-26 16:56:16.580 28399-28399/edu.selu.teamtron.whatsthis2 W/art: Before Android 4.1, method android.graphics.PorterDuffColorFilter android.support.graphics.drawable.VectorDrawableCompat.updateTintFilter(android.graphics.PorterDuffColorFilter, android.content.res.ColorStateList, android.graphics.PorterDuff$Mode) would have incorrectly overridden the package-private method in android.graphics.drawable.Drawable
11-26 16:56:16.662 28399-28399/edu.selu.teamtron.whatsthis2 I/WhatsThisAppLogging: In the onCreate() method of the WhatsThisAPPActivity Class
11-26 16:56:16.662 28399-28399/edu.selu.teamtron.whatsthis2 D/MainActivity: onCreate(Bundle) called
11-26 16:56:16.664 28399-28399/edu.selu.teamtron.whatsthis2 D/WhatsThisAppLogging: onStart() called
11-26 16:56:16.666 28399-28399/edu.selu.teamtron.whatsthis2 D/WhatsThisAppLogging: onResume() called
11-26 16:56:28.119 28399-28399/edu.selu.teamtron.whatsthis2 D/myAppName: External storage is not read only or unavailable
11-26 16:56:28.121 28399-28399/edu.selu.teamtron.whatsthis2 D/myAppName: folder exist:/storage/emulated/0/Pictures/WhatsThis
11-26 16:56:28.127 28399-28399/edu.selu.teamtron.whatsthis2 D/myAppName: External storage is not read only or unavailable
11-26 16:56:28.129 28399-28399/edu.selu.teamtron.whatsthis2 D/myAppName: folder exist:/storage/emulated/0/Pictures/WhatsThis
11-26 16:56:28.130 28399-28399/edu.selu.teamtron.whatsthis2 W/System.err: java.io.FileNotFoundException: /storage/emulated/0/Pictures/WhatsThis (Is a directory)
11-26 16:56:28.130 28399-28399/edu.selu.teamtron.whatsthis2 W/System.err: at java.io.FileOutputStream.open(Native Method)
11-26 16:56:28.130 28399-28399/edu.selu.teamtron.whatsthis2 W/System.err: at java.io.FileOutputStream.<init>(FileOutputStream.java:221)
11-26 16:56:28.130 28399-28399/edu.selu.teamtron.whatsthis2 W/System.err: at java.io.FileOutputStream.<init>(FileOutputStream.java:169)
11-26 16:56:28.130 28399-28399/edu.selu.teamtron.whatsthis2 W/System.err: at edu.selu.teamtron.whatsthis2.MainActivity$2.onClick(MainActivity.java:185)
11-26 16:56:28.131 28399-28399/edu.selu.teamtron.whatsthis2 W/System.err: at android.view.View.performClick(View.java:5612)
11-26 16:56:28.131 28399-28399/edu.selu.teamtron.whatsthis2 W/System.err: at android.view.View$PerformClick.run(View.java:22285)
11-26 16:56:28.131 28399-28399/edu.selu.teamtron.whatsthis2 W/System.err: at android.os.Handler.handleCallback(Handler.java:751)
11-26 16:56:28.131 28399-28399/edu.selu.teamtron.whatsthis2 W/System.err: at android.os.Handler.dispatchMessage(Handler.java:95)
11-26 16:56:28.131 28399-28399/edu.selu.teamtron.whatsthis2 W/System.err: at android.os.Looper.loop(Looper.java:154)
11-26 16:56:28.131 28399-28399/edu.selu.teamtron.whatsthis2 W/System.err: at android.app.ActivityThread.main(ActivityThread.java:6154)
11-26 16:56:28.131 28399-28399/edu.selu.teamtron.whatsthis2 W/System.err: at java.lang.reflect.Method.invoke(Native Method)
11-26 16:56:28.131 28399-28399/edu.selu.teamtron.whatsthis2 W/System.err: at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:867)
11-26 16:56:28.131 28399-28399/edu.selu.teamtron.whatsthis2 W/System.err: at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:757)
11-26 16:56:28.131 28399-28399/edu.selu.teamtron.whatsthis2 D/WhatsThisApp: Screenshot not Saved!
11-26 16:56:28.144 28399-28399/edu.selu.teamtron.whatsthis2 D/WhatsThisAppLogging: onPause() called