SharedPreferences实现数据的存储与还原

ublic class MainActivity extends AppCompatActivity {

private Button saveBtn;
private Button restoreBtn;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
saveBtn = (Button)findViewById(R.id.buttonSave);
saveBtn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
//存储数据
SharedPreferences.Editor spEditor = getSharedPreferences("data",MODE_PRIVATE).edit();
spEditor.putString("name","张三");
spEditor.putInt("age", 17);
spEditor.putInt("score", 80);
spEditor.commit();
Toast.makeText(MainActivity.this, "保存数据成功", Toast.LENGTH_SHORT).show();
}
});

restoreBtn = (Button)findViewById(R.id.buttonRestore);
restoreBtn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
//还原数据
SharedPreferences sPref = getSharedPreferences("data",MODE_PRIVATE);
String name = sPref.getString("name", "");
int age = sPref.getInt("age", 0);
int score = sPref.getInt("score",0);
String msg = "name:" + name + "age:" + age + "score:" +score;
Toast.makeText(MainActivity.this, msg, Toast.LENGTH_SHORT).show();
}
});
}
}