Android reads assets and raw file content instance code _android

Android file operation-read assets and RAW file content

1. Create Assets folders and Res/raw folders individually: (Note that raw files are new in res and then create a folder with the name Raw)

2. Create two txt files and copy to asset and raw folders:

3. Effect of implementation:

4. Implementation code:

(1) Layout file:

<?xml version= "1.0" encoding= "Utf-8"?> <linearlayout xmlns:android=
"http://schemas.android.com/apk/" Res/android "
  xmlns:tools=" Http://schemas.android.com/tools "
  android:layout_width=" Match_parent
  " android:layout_height= "Match_parent"
  android:orientation= "vertical"
  tools:context= " Base.readassetsfile.MainActivity ">
  <button
    android:textsize=" 20sp "
    android:text=" @string Aasets_txt "
    android:id=" @+id/readfile "
    android:layout_width=" match_parent "
    android:layout_" height= "Wrap_content"/>
  <button
    android:textsize= "20sp"
    android:text= "@string/raw
    " Android:id= "@+id/readrawfile"
    android:layout_width= "match_parent"
    android:layout_height= "WRAP_" Content "/>
</LinearLayout>

(2) Specific implementation:

Package base.readassetsfile;
Import android.support.v7.app.AppCompatActivity;
Import Android.os.Bundle;
Import Android.util.Log;
Import Android.view.View;

Import Android.widget.EditText;
Import Java.io.BufferedReader;
Import java.io.IOException;
Import Java.io.InputStream;
Import Java.io.InputStreamReader;
Import Java.io.OutputStream;

Import java.io.UnsupportedEncodingException; public class Mainactivity extends Appcompatactivity implements View.onclicklistener {@Override protected void oncreat
    E (Bundle savedinstancestate) {super.oncreate (savedinstancestate);
    Setcontentview (R.layout.activity_main);
    Findviewbyid (R.id.readfile). Setonclicklistener (this);
  Findviewbyid (R.id.readrawfile). Setonclicklistener (this);
        @Override public void OnClick (View v) {switch (V.getid ()) {case R.id.readfile:readasset ();
      Break
        Case R.id.readrawfile:readraw ();
    Break The public void Readasset () {try {//Get file inbyte InputStream inputstream=getresources (). Getassets (). Open ("Test.txt");
      Converts bytes to characters inputstreamreader isreader=new InputStreamReader (InputStream, "UTF-8");
      Use Bufferreader to read content BufferedReader reader=new BufferedReader (Isreader);
      String out= "";
      while ((Out=reader.readline ())!=null) {log.d ("File information read:", out);
    } catch (IOException e) {e.printstacktrace (); } public void Readraw () {try {//Get the contents of the file InputStream inputstream=getresources (). Openrawresource (R.R
      Aw.test);
      Converts the bytes in the file to characters InputStreamReader isreader=new InputStreamReader (InputStream, "UTF-8");
      Use Bufferreader to read characters BufferedReader reader=new BufferedReader (Isreader);
      String out= "";
        try {while (Out=reader.readline ())!=null) {LOG.D ("data read from Raw folder:", out);
      } catch (IOException e) {e.printstacktrace (); } catch (Unsupportedencodingexception e) {e.printstAcktrace (); }
  }

}

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