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  1. package com.example.androidam.preferencelesson;
  2.  
  3. import android.content.Intent;
  4. import android.content.SharedPreferences;
  5. import android.preference.PreferenceManager;
  6. import android.support.v7.app.AppCompatActivity;
  7. import android.os.Bundle;
  8. import android.support.v7.widget.RecyclerView;
  9. import android.view.View;
  10. import android.widget.TextView;
  11. import android.widget.Toast;
  12.  
  13. public class MainActivity extends AppCompatActivity {
  14.  
  15. SharedPreferences pref;
  16.  
  17. @Override
  18. protected void onCreate(Bundle savedInstanceState) {
  19. super.onCreate(savedInstanceState);
  20. setContentView(R.layout.activity_main);
  21. pref = PreferenceManager.getDefaultSharedPreferences(this);
  22.  
  23. String msg = "";
  24. msg += "UserName: " + pref.getString("aditText_name", "guest");
  25. msg += "PassWord: " + pref.getString("aditText_password", "123abc");
  26. msg += "Age: " + pref.getString("aditText_age", "20");
  27. Toast.makeText(this, msg, Toast.LENGTH_SHORT).show();
  28. }
  29.  
  30. public void btClick(View v) {
  31. Intent i = new Intent(this, MyConfigActivity2.class);
  32. startActivity(i);
  33. }
  34.  
  35. public void btShow(View v) {
  36. String msg = "";
  37. msg += "UserName: " + pref.getString("aditText_name", "guest");
  38. msg += "PassWord: " + pref.getString("aditText_password", "123abc");
  39. msg += "Age: " + pref.getString("aditText_age", "20");
  40.  
  41. ((TextView)findViewById(R.id.textView)).setText(msg);
  42. }
  43. }
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