package net.micode.notes.ui; import android.app.Activity; import android.content.Intent; import android.content.SharedPreferences; import android.os.Bundle; import android.view.View; import android.view.WindowManager; import android.widget.Button; import android.widget.EditText; import android.widget.Toast; import net.micode.notes.R; public class DeletingPassword extends Activity { EditText Dt_password; Button Acknowledged; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_delete_password); getWindow().setSoftInputMode( WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE | WindowManager.LayoutParams.SOFT_INPUT_STATE_VISIBLE); Dt_password=(EditText) findViewById(R.id.thepassword); Acknowledged=(Button)findViewById(R.id.Dt_Acknowledged); Acknowledged.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { String text02 = Dt_password.getText().toString(); if(text02.equals("")==true) Toast.makeText(DeletingPassword.this, "密码不能为空", Toast.LENGTH_SHORT).show(); SharedPreferences pref=getSharedPreferences("user management",MODE_PRIVATE); String password = pref.getString("password",""); if(password.equals("")==false&&password.equals(text02)==true){ SharedPreferences.Editor editor=getSharedPreferences("user management", MODE_PRIVATE).edit(); editor.putBoolean("user",false);//false 表示已经设置登录密码 editor.putString("password",""); editor.apply(); Toast.makeText(DeletingPassword.this, "已经删除登录密码", Toast.LENGTH_SHORT).show(); Intent intent=new Intent(DeletingPassword.this,NotesListActivity.class); startActivity(intent); finish(); } else{ Toast.makeText(DeletingPassword.this, "密码错误", Toast.LENGTH_SHORT).show(); Dt_password.setText("");//把密码框内输入过的错误密码清空 } } }); } @Override public void onBackPressed() { Intent intent=new Intent(DeletingPassword.this,NotesListActivity.class); startActivity(intent); finish(); } }