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Android记住密码后自动登录
/**
*
* @author alex
* @version 2014-7-31下午5:25:45
*
*/
public class LoginActivity extends Activity {
private EditText name;
private EditText pass;
private CheckBox isRemenber;
private CheckBox isLoginSelf;
private Button longin;
private ProgressDialog mDialog;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
name=(EditText)findViewById(R.id.et_name);
pass=(EditText)findViewById(R.id.et_pass);
isRemenber=(CheckBox)findViewById(R.id.isremenber);
isLoginSelf=(CheckBox)findViewById(R.id.isloginself);
longin=(Button)findViewById(R.id.longin);
final SharedPreferences pre=getSharedPreferences("longinvalue", MODE_WORLD_WRITEABLE);
if(pre!=null){
//记住了密码
if(pre.getBoolean("isrmb", false)==true){
name.setText(pre.getString("name", null));
pass.setText(pre.getString("pass", null));
isRemenber.setChecked(true) ;
}
if(pre.getBoolean("islgs", false)==true){
isLoginSelf.setChecked(true);
creatDialog();
new Thread(){
public void run() {
try {
Thread.sleep(3000);
if(mDialog.isShowing()){
mDialog.dismiss();
}
Intent intent2=new Intent(LoginActivity.this,Show.class);
startActivity(intent2);
} catch (Exception e) {
// TODO: handle exception
}
}
}.start();
}
}
isRemenber.setOnCheckedChangeListener( new OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
// TODO Auto-generated method stub
if(isRemenber.isChecked()==false){
isLoginSelf.setChecked(false);
}
}
});
isLoginSelf.setOnCheckedChangeListener(new OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
// TODO Auto-generated method stub
isRemenber.setChecked(true);
}
});
longin.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
if(!name.getText().toString().equals("")&&!pass.getText().toString().equals("")){
if(isLoginSelf.isChecked()){
pre.edit().putBoolean("isrmb", true).putBoolean("islgs", true).putString("name", name.getText().toString())
.putString("pass", pass.getText().toString()).commit();
}else{
if(isRemenber.isChecked()){
pre.edit().putBoolean("isrmb", true).putBoolean("islgs", false).putString("name", name.getText().toString())
.putString("pass", pass.getText().toString()).commit();
}else{
pre.edit().putBoolean("isrmb", false).putBoolean("islgs", false).putString("name", name.getText().toString())
.putString("pass", pass.getText().toString()).commit();
}
}
Intent intent=new Intent(LoginActivity.this,Show.class);
startActivity(intent);
}else{
Toast.makeText(getApplicationContext(), "密码或账号不能为空！", Toast.LENGTH_LONG).show();
}
}
});
}
private void creatDialog() {
mDialog=new ProgressDialog(this);
mDialog.setTitle("验证中");
mDialog.setMessage("正在登陆请稍后");
mDialog.setIndeterminate(true);
mDialog.setCancelable(true);
mDialog.show();
}
}
import android.app.Activity;
import android.os.Bundle;
public class Show extends Activity{
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.show);
}
}
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="alex.sias.com"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk android:minSdkVersion="8" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" >
</uses-permission>
<application
android:icon="@drawable/icon"
android:label="@string/app_name"
android:theme="@android:style/Theme.NoTitleBar.Fullscreen" >
<activity
android:name=".LoginActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name="Show" >
</activity>
</application>
</manifest>
用到两个布局文件
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="@drawable/chat_bg_default"
>
<TextView
android:layout_height="50dp"
android:layout_width="fill_parent"
android:gravity="center"
android:textSize="24sp"
android:text="登录界面"
android:textColor="@color/white"
android:background="@drawable/song_index_item_bg"/>
<ImageView
android:id="@+id/iv"
android:layout_height="220dp"
android:layout_width="230dp"
android:layout_marginTop="110dp"
android:src=http://www.mamicode.com/"@drawable/background"
android:layout_centerHorizontal="true"
android:scaleType="fitXY"/>
<TextView
android:id="@+id/tv_name"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:textSize="15sp"
android:layout_marginTop="7dp"
android:text="账号："
android:layout_alignLeft="@+id/iv"
android:layout_alignTop="@+id/iv"
android:layout_marginLeft="7dp"
android:textColor="@color/green"/>
<EditText
android:id="@+id/et_name"
android:layout_height="25dp"
android:layout_width="210dp"
android:layout_marginTop="7dp"
android:layout_below="@+id/tv_name"
android:background="@drawable/shape"
android:layout_alignLeft="@+id/tv_name"/>
<TextView
android:id="@+id/tv_pass"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:textSize="15sp"
android:text="密码："
android:layout_alignLeft="@+id/tv_name"
android:layout_below="@+id/et_name"
android:layout_marginTop="7dp"
android:textColor="@color/green"/>
<EditText
android:id="@+id/et_pass"
android:layout_height="25dp"
android:layout_width="210dp"
android:background="@drawable/shape"
android:layout_marginTop="7dp"
android:layout_below="@+id/tv_pass"
android:layout_alignLeft="@+id/tv_name"/>
<CheckBox
android:id="@+id/isremenber"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:layout_alignLeft="@+id/tv_name"
android:layout_marginTop="10dp"
android:text="记住密码"
android:textSize="11sp"
android:textColor="@color/huise"
android:layout_below="@+id/et_pass"
android:button="@drawable/mycheckbox"/>
<CheckBox
android:id="@+id/isloginself"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:layout_alignRight="@+id/et_name"
android:layout_marginTop="10dp"
android:text="自动登录"
android:textSize="11sp"
android:textColor="@color/huise"
android:layout_below="@+id/et_pass"
android:button="@drawable/mycheckbox"/>
<Button
android:id="@+id/longin"
android:layout_height="25dp"
android:layout_width="210dp"
android:layout_below="@+id/isloginself"
android:layout_alignLeft="@+id/et_pass"
android:layout_marginTop="10dp"
android:text="登录"
android:gravity="center"
android:background="@drawable/loginbtn"/>
</RelativeLayout>
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/white">
<TextView
android:layout_height="fill_parent"
android:layout_width="fill_parent"
android:text="嘿嘿!"
android:textSize="40sp"
android:gravity="center"/>
</LinearLayout>