package net.micode.notes.ui; import android.app.Activity; import android.content.Intent; import android.content.SharedPreferences; import android.os.Bundle; import android.util.Log; 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 LoginActivity extends Activity { EditText lg_password; Button lg_login; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); SharedPreferences pref=getSharedPreferences("user management",MODE_PRIVATE); boolean User_boolean = pref.getBoolean("user",false);//获取用户是否设置了密码 if(!User_boolean) //User_boolean = false时,(没有设置密码),直接跳转到便签主界面 { Intent intent=new Intent(LoginActivity.this,SplashActivity.class); startActivity(intent); finish(); } setContentView(R.layout.activity_login); getWindow().setSoftInputMode( WindowManager.LayoutParams.SOFT_INPUT_STATE_VISIBLE | WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE); lg_password=(EditText) findViewById(R.id.lg_password); lg_login=(Button)findViewById(R.id.login); lg_login.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { SharedPreferences pref=getSharedPreferences("user management",MODE_PRIVATE); String password=pref.getString("password",""); if(password.equals("")==false&&password.equals(lg_password.getText().toString())==true){ Intent intent=new Intent(LoginActivity.this,SplashActivity.class); startActivity(intent); finish(); } else{ Toast.makeText(LoginActivity.this, "密码错误", Toast.LENGTH_SHORT).show(); lg_password.setText("");//把密码框内输入过的错误密码清空 } } } ); } }