【发布时间】：2014-03-12 02:24:16
【问题描述】：
好的，到目前为止我已经成功创建了文件夹。在 CreateFolderActivity.java 以下为创建文件夹代码：
btn_cFolder.setOnClickListener(new OnClickListener() {
public void onClick(View v)
{
String dateN = edit_date.getText().toString();
new AlertDialog.Builder(DatePickerActivity.this, AlertDialog.THEME_HOLO_DARK)
.setTitle("Create Folder")
.setMessage("Confirm to create " + dateN +" folder ?")
.setPositiveButton(android.R.string.yes, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
Environment.getExternalStorageDirectory();
String dateN = edit_date.getText().toString();
edit_date.setTypeface(edit_date.getTypeface(), Typeface.BOLD_ITALIC);
File folder = new File(Environment.getExternalStorageDirectory().getAbsolutePath() + "/CalendarNote/" + dateN);
boolean success = true;
if (!folder.exists()) {
success = folder.mkdirs();
}
if (success) {
Toast.makeText(getBaseContext(), "You have successfully created." , Toast.LENGTH_LONG ).show();
Intent w = new Intent(DatePickerActivity.this, SelectTypeActivity.class);
startActivity(w);
} else {
Toast.makeText(getBaseContext(), "You have Failed to create." , Toast.LENGTH_LONG ).show();
}
}
})
.setNegativeButton(android.R.string.no, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
// do nothing
}
})
.setIcon(R.drawable.ic_launcher)
.show();
}
});
而且我也成功地创建了 txt 文件。 但现在唯一的问题是路径位置我尝试了很多方法来连接这两个 将文件保存到文件夹中。到目前为止，我希望 txt 文件像这样 /CalendarNote/TheDateIPick/hello.txt 保存。
现在我只能保存到与 CalendarNote 相同的文件夹中。 以下代码是我修改但不成功的代码。请帮帮我。
public void SaveListener() {
imb_savefile = (ImageButton) findViewById(R.id.imb_savefile);
imb_savefile.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View arg0) {
edit_date = (EditText) findViewById(R.id.edit_date);
String t = edit_title.getText().toString();
new AlertDialog.Builder(WriteNoteActivity.this, AlertDialog.THEME_HOLO_DARK)
.setTitle("Save Note")
.setMessage("Confirm to save " + t +"?")
.setPositiveButton(android.R.string.yes, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
String content = edit_content.getText().toString();
String title = edit_title.getText().toString();
String dateN = edit_date.getText().toString();
boolean success = true;
try {
File sdCardDir = Environment.getExternalStorageDirectory();
File targetFile;
targetFile = new File(sdCardDir.getCanonicalPath()
+ "/CalendarNote/"+ dateN);
File file=new File(targetFile + "/"+title+".txt");
if(!targetFile.exists()){
success = targetFile.mkdir();
}
RandomAccessFile raf = new RandomAccessFile(file, "rw");
raf.seek(file.length());
raf.write(content.getBytes());
raf.close();
} catch (IOException e) {
e.printStackTrace();
}
if (success) {
Toast.makeText(getBaseContext(), "You have successfully created." , Toast.LENGTH_LONG ).show();
} else {
Toast.makeText(getBaseContext(), "You have Failed to create." , Toast.LENGTH_LONG ).show();
}
//Toast.makeText(getBaseContext(), "Note have successfully saved." , Toast.LENGTH_LONG ).show();
}
})
.setNegativeButton(android.R.string.no, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
Toast.makeText(getBaseContext(), "Note Cancelled." , Toast.LENGTH_LONG ).show();
}
})
.setIcon(R.drawable.ic_launcher)
.show();
}
});
}
【问题讨论】：
-
当然，为什么不呢？你试过什么？你知道什么？
-
当然可以，但你应该先试试。
-
请看我的问题对我来说非常紧急~我已经编辑了我的问题
-
@323go 你能帮我检查一下我的代码是否有路径问题
-
@tianwei 你能帮我检查一下我的代码是否有路径问题
标签： android