我必须在列表视图的点击事件中从资产文件夹打开PDF。我有代码首先将其移动到SD卡。但每当我在资产文件夹中插入新的PDF时，我必须编写完整的代码来打开PDF，在资源文件夹中插入PDF是不可能的，它只需将其复制到SD卡中并打开它。
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.issue_2014);
CopyReadAssets();
AssetManager asset = getAssets();
try {
final String[] arrdata = asset.list("PDFfolder");
List<String> pdflist = new ArrayList<String>();
int size = arrdata.length;
for(int i = 0;i<size;i++)
{
if(arrdata[i].contains(".pdf"))
{
pdflist.add(arrdata[i]);
}
}
ArrayAdapter<String> adapter= new ArrayAdapter<String>(this, R.layout.list,R.id.title,pdflist);
ListView listView = (ListView) findViewById(R.id.issue_list);
listView.setAdapter(adapter);
listView.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
if(position == 3 ) {
Uri path = Uri.parse("file://" + getFilesDir() + "/abc.pdf");
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
intent.setDataAndType(path, "application/pdf");
try{
startActivity(intent);
}
catch(Exception e){
Toast.makeText(Issue_2014.this,e.toString(),Toast.LENGTH_LONG).show();
}
}
if(position == 2 ) {
Uri path = Uri.parse("file://" + getFilesDir() + "/aai.pdf");
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
intent.setDataAndType(path, "application/pdf");
try{
startActivity(intent);
}
catch(Exception e){
Toast.makeText(Issue_2014.this,e.toString(),Toast.LENGTH_LONG).show();
}
}
if(position == 0 ) {
Uri path = Uri.parse("file://" + getFilesDir() + "/Silence.pdf");
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
intent.setDataAndType(path, "application/pdf");
try{
startActivity(intent);
}
catch(Exception e){
Toast.makeText(Issue_2014.this,e.toString(),Toast.LENGTH_LONG).show();
}
}
if(position == 1) {
Uri path = Uri.parse("file://" + getFilesDir() + "/Tawzihulmasael.pdf");
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
intent.setDataAndType(path, "application/pdf");
try{
startActivity(intent);
}
catch(Exception e){
Toast.makeText(Issue_2014.this,e.toString(),Toast.LENGTH_LONG).show();
}
}
}
});
} catch (IOException e) {
}
ImageButton ib=(ImageButton)findViewById(R.id.listimage);
ib.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
Intent myWebLink = new Intent(android.content.Intent.ACTION_VIEW);
myWebLink.setComponent(new ComponentName("com.android.browser", "com.android.browser.BrowserActivity"));
myWebLink.setData(Uri.parse("http://www.curenfly.com"));
startActivity(myWebLink);
}
});
}
@SuppressLint("WorldReadableFiles")
@SuppressWarnings("deprecation")
private void CopyReadAssets() {
AssetManager assetManager = getAssets();
InputStream in = null;
OutputStream out = null;
File file = new File(getFilesDir(), "abc.pdf");
try
{
in = assetManager.open("PDFfolder/abc.pdf");
out = openFileOutput(file.getName(), Context.MODE_WORLD_READABLE);
copyFile(in, out);
in.close();
in = null;
out.flush();
out.close();
out = null;
} catch (Exception e)
{
}
File f2 = new File(getFilesDir(), "aai.pdf");
try
{
in = assetManager.open("PDFfolder/aai.pdf");
out = openFileOutput(f2.getName(), Context.MODE_WORLD_READABLE);
copyFile(in, out);
in.close();
in = null;
out.flush();
out.close();
out = null;
} catch (Exception e)
{
}
File f3 = new File(getFilesDir(), "Silence.pdf");
try
{
in = assetManager.open("PDFfolder/Silence.pdf");
out = openFileOutput(f3.getName(), Context.MODE_WORLD_READABLE);
copyFile(in, out);
in.close();
in = null;
out.flush();
out.close();
out = null;
} catch (Exception e)
{
}
File f4 = new File(getFilesDir(), "Tawzihulmasael.pdf");
try
{
in = assetManager.open("PDFfolder/Tawzihulmasael.pdf");
out = openFileOutput(f4.getName(), Context.MODE_WORLD_READABLE);
copyFile(in, out);
in.close();
in = null;
out.flush();
out.close();
out = null;
} catch (Exception e)
{
}
}
private void copyFile(InputStream in, OutputStream out) throws IOException
{
byte[] buffer = new byte[1024];
int read;
while ((read = in.read(buffer)) != -1)
{
out.write(buffer, 0, read);
}
}
}
现在在上面的代码我已经在assets文件夹中插入了4个Pdfs。并为四个不同的位置写了四次代码，将PDF复制到SD卡并打开它。现在，如果我插入第5版PDF，那么我必须编写这整个杂乱的东西来复制和打开PDF。 任何帮助，将不胜感激... Plz帮我解决了... ...
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