LoginTask

来源：互联网发布：大班mg红异端淘宝编辑：程序博客网时间：2024/06/05 17:25

1.效果图

2.代码

import android.app.Activity;import android.content.Context;import android.content.Intent;import android.content.SharedPreferences;import android.content.SharedPreferences.Editor;import android.os.Bundle;import android.view.View;import android.view.View.OnClickListener;import android.view.Window;import android.widget.Button;import android.widget.CheckBox;import android.widget.EditText;import android.widget.Toast;public class LoginActivity extends Activity {private EditText etUsername;private EditText etPassword;private CheckBox cbRememberPass;private Button btnLogin;protected SharedPreferences mSpSettings = null;private static final String PREFS_NAME = "NamePwd";@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);requestWindowFeature(Window.FEATURE_NO_TITLE);setContentView(R.layout.activity_login);etUsername = (EditText) findViewById(R.id.etUsername);etPassword = (EditText) findViewById(R.id.etPassword);cbRememberPass = (CheckBox) findViewById(R.id.cbRememberPass);btnLogin = (Button) findViewById(R.id.btnLogin);btnLogin.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View view) {// TODO Auto-generated method stubif ("login".equals(etUsername.getText().toString())&& "123456".equals(etPassword.getText().toString())) {// 判断用户名和密码if (cbRememberPass.isChecked()) {// 判断复选框是否选中mSpSettings = getSharedPreferences(PREFS_NAME,Context.MODE_PRIVATE);Editor edit = mSpSettings.edit();edit.putBoolean("isKeeep", true);edit.putString("username", etUsername.getText().toString());edit.putString("password", etPassword.getText().toString());edit.commit();// 选中后记住密码} else {mSpSettings = getSharedPreferences(PREFS_NAME,MODE_PRIVATE);Editor edit = mSpSettings.edit();edit.putBoolean("isKeeep", false);edit.putString("username", "");edit.putString("password", "");edit.commit();// 未选中没有记住密码}Intent intent = new Intent(LoginActivity.this,MainActivity.class);startActivity(intent);} else {Toast.makeText(getApplicationContext(), "用户名或密码错误",Toast.LENGTH_SHORT).show();}}});getData();}protected void onResume() {super.onResume();getData();}// 在界面显示之前得到数据private void getData() {// TODO Auto-generated method stubmSpSettings = getSharedPreferences(PREFS_NAME, Context.MODE_PRIVATE);if (mSpSettings.getBoolean("isKeep", true)) {etUsername.setText(mSpSettings.getString("username", ""));etPassword.setText(mSpSettings.getString("password", ""));}// 如果之前存储过，则显示在相应的文本里else {etUsername.setText("");etPassword.setText("");}// 如果之前没有显示过，则显示为空。}}

import android.os.Bundle;import android.app.Activity;import android.view.Menu;public class MainActivity extends Activity {@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);}@Overridepublic boolean onCreateOptionsMenu(Menu menu) {getMenuInflater().inflate(R.menu.main, menu);return true;}}

<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"    android:background="@drawable/loginbg"    android:paddingBottom="@dimen/activity_vertical_margin"    android:paddingLeft="@dimen/activity_horizontal_margin"    android:paddingRight="@dimen/activity_horizontal_margin"    android:paddingTop="@dimen/activity_vertical_margin"    tools:context=".LoginActivity" >  <include layout="@layout/login_top"/>   <include layout="@layout/login_bottom"/>"</LinearLayout>

<?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="match_parent"    android:layout_height="wrap_content" >    <TextView        android:id="@+id/tvRegist"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_alignParentLeft="true"        android:layout_alignParentTop="true"        android:layout_marginLeft="21dp"        android:layout_marginTop="18dp"        android:text="@string/tvRegister"        android:autoLink="all"        android:textColorLink="#FF0066CC" />    <ImageView        android:id="@+id/imageView1"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_alignParentBottom="true"        android:layout_alignParentRight="true"        android:layout_marginBottom="24dp"        android:src="@drawable/panda" />    <ImageView        android:id="@+id/imageView2"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_alignParentBottom="true"        android:layout_centerHorizontal="true"        android:layout_marginBottom="28dp"        android:src="@drawable/icon" /></RelativeLayout>

<?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="match_parent"    android:layout_height="wrap_content"    android:background="@drawable/btnbg_roundcorner"    android:paddingBottom="@dimen/activity_vertical_margin"    android:paddingLeft="@dimen/activity_horizontal_margin"    android:paddingRight="@dimen/activity_horizontal_margin"    android:paddingTop="@dimen/activity_vertical_margin" >    <TextView        android:id="@+id/tvUsername"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_alignParentLeft="true"        android:layout_alignParentTop="true"        android:text="@string/tvName"        android:textAppearance="?android:attr/textAppearanceMedium" />    <EditText        android:id="@+id/etUsername"        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:layout_alignLeft="@+id/tvUsername"        android:layout_below="@+id/tvUsername"        android:background="@android:drawable/edit_text"        android:ems="10" >        <requestFocus />    </EditText>    <TextView        android:id="@+id/tvPassword"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_alignLeft="@+id/etUsername"        android:layout_below="@+id/etUsername"        android:text="@string/tvPassword"        android:textAppearance="?android:attr/textAppearanceMedium" />    <EditText        android:id="@+id/etPassword"        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:layout_alignLeft="@+id/tvPassword"        android:layout_below="@+id/tvPassword"        android:background="@android:drawable/edit_text"        android:ems="10"        android:inputType="textPassword" />    <CheckBox        android:id="@+id/cbRememberPass"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_alignBaseline="@+id/btnLogin"        android:layout_alignBottom="@+id/btnLogin"        android:layout_alignLeft="@+id/etPassword"        android:text="记住密码"        android:textSize="20sp" />    <Button        android:id="@+id/btnLogin"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_alignRight="@+id/etPassword"        android:layout_below="@+id/etPassword"        android:background="#FF72CAE1"        android:onClick="login"        android:text="@string/btnLogin" /></RelativeLayout>

0 0