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我需要创建一个应用程序,包括从手机浏览pdf然后阅读(稍后将执行,一旦浏览部分完成),我遇到了代码问题。我已经通过下面的链接我的计算器找到了,但遗憾的是它不工作, Browse and upload pdf or word file in Android 这里是我MainActivity.java类从Android Studio中的手机浏览pdf
import java.io.File;
import android.net.Uri;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Toast;
import android.app.Activity;
import android.content.ActivityNotFoundException;
import android.content.Intent;
import android.content.Context;
import android.content.Intent;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.provider.MediaStore;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;
import java.io.File;
import java.net.URI;
import java.net.URISyntaxException;
public class MainActivity extends AppCompatActivity {
Button btnAttach;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
btnAttach = (Button) findViewById(R.id.button1);
//button1 is the id of the only button I have in my activity_main.xml
// view products click event
btnAttach.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
button1_OnClick(view);
// Launching All products Activity
}
});
}
public void button1_OnClick(View view) {
getDocument();
}
private void getDocument() {
Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
intent.setType("application/msword,application/pdf");
intent.addCategory(Intent.CATEGORY_OPENABLE);
}
}
protected void onActivityResult (int req, int result, Intent data)
{
// TODO Auto-generated method stub
super.onActivityResult(req, result, data);
if (result == RESULT_OK) {
Uri fileuri = data.getData();
String docFilePath = getFileNameByUri(this, fileuri);
}
}
// get file path
private String getFileNameByUri(Context context, Uri uri) {
String filepath = "";//default fileName
File file;
if (uri.getScheme().toString().compareTo("content") == 0) {
Cursor cursor = context.getContentResolver().query(uri, new String[]{android.provider.MediaStore.Images.ImageColumns.DATA, MediaStore.Images.Media.ORIENTATION}, null, null, null);
int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
cursor.moveToFirst();
String mImagePath = cursor.getString(column_index);
cursor.close();
filepath = mImagePath;
} else if (uri.getScheme().compareTo("file") == 0) {
try {
file = new File(new URI(uri.toString()));
if (file.exists())
filepath = file.getAbsolutePath();
} catch (URISyntaxException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
} else {
filepath = uri.getPath();
}
return filepath;
}
}
请确定“不能正常工作”意味着什么(预期与实际结果,错误消息等)。他们仍然没有把我订购的水晶球运送给我。 – CherryDT
当我点击button1时,没有任何反应。 –
只是看着另一个线程,我会说有'startActivityForResult(intent,REQUEST_CODE_DOC);'想要真正做某事。另外,你的大括号有一些奇怪的地方(检查'getDocument'中的杂项大括号),我首先想到它编译的结果。 – CherryDT