Android手机安全卫士（二）---设置、自定义控件属性、md5加密、手机防盗
2015-07-10 16:35
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Android手机安全卫士（二）---设置、自定义控件属性、md5加密、手机防盗
①设置
设置中心主要用于设置手机是否自动获取更新，并要求使用SharedPreferences记住设置。<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<TextView
android:id="@+id/textView1"
android:layout_width="fill_parent"
android:layout_height="55dip"
android:background="#8866ff00"
android:gravity="center"
android:text="设置中心"
android:textColor="#ffffff"
android:textSize="22sp" />
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="68dip"
>
<TextView
android:id="@+id/tv_title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="10dip"
android:layout_marginTop="8dip"
android:textColor="#ffffff"
android:textSize="20sp"
android:text="设置是否自动更新" />
<TextView
android:id="@+id/tv_desc"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@id/tv_title"
android:layout_marginLeft="10dip"
android:textColor="#bfbfbf"
android:textSize="18sp"
/>
<CheckBox
android:clickable="true"
android:focusable="false"
android:id="@+id/cb_status"
android:layout_marginRight="10dip"
android:layout_centerVertical="true"
android:layout_alignParentRight="true"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<View
android:layout_marginLeft="5dip"
android:layout_marginRight="5dip"
android:layout_alignParentBottom="true"
android:background="#ffffff"
android:layout_width="fill_parent"
android:layout_height="0.2dip"/>
</RelativeLayout>
</LinearLayout>public class SettingActivity extends Activity {
private TextView tv_desc;
private CheckBox cb_status;
private SharedPreferences sp;
private int flag;
private Handler handler = new Handler() {
public void handleMessage(Message msg) {
switch (msg.what) {
case 1:
Log.v("--->>","Checked" );
String flag = "自动更新已经打开";
tv_desc.setText(flag);
tv_desc.invalidate();
break;
case 0:
Log.v("--->>","unChecked" );
String flag1 = "自动更新已经关闭";
tv_desc.setText(flag1);
tv_desc.invalidate();
break;
}
}
};
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_setting);
cb_status = (CheckBox) findViewById(R.id.cb_status);
tv_desc = (TextView) findViewById(R.id.tv_desc);
SharedPreferences pref = getSharedPreferences("update", MODE_PRIVATE);
flag=pref.getInt("update_flag", 0);;
switch (flag) {
case 1:
Log.v("--->>","Checked" );
cb_status.setChecked(true);
String flag1 = "自动更新已经打开";
tv_desc.setText(flag1);
tv_desc.invalidate();
break;
case 0:
Log.v("--->>","unChecked" );
cb_status.setChecked(false);
String flag2 = "自动更新已经关闭";
tv_desc.setText(flag2);
tv_desc.invalidate();
break;
}
cb_status.setOnClickListener(new OnClickListener(){
@Override
public void onClick(View v) {
// TODO 自动生成的方法存根
new Thread(new Runnable() {
SharedPreferences.Editor editor = getSharedPreferences("update",MODE_PRIVATE).edit();
@Override
public void run() {
Message message = new Message();
if(cb_status.isChecked()){
message.what = 1;
editor.putInt("update_flag", 1);
editor.commit();
}else{
message.what = 0;
editor.putInt("update_flag", 0);
editor.commit();
}
handler.sendMessage(message);
}
}).start();
}
});
}
}效果如下图：
②自定义控件属性
自定义组合控件的过程1、自定义一个View 一般来说，继承相对布局，或者线性布局 ViewGroup。
2、实现父类的构造方法。一般来说，需要在构造方法里初始化自定义的布局文件。
3、根据一些需要或者需求，定义一些API方法。
4、根据需要，自定义控件的属性。
5、自定义命名空间，例如：
xmlns:husheng="http://schemas.android.com/apk/res/包名"
xmlns:husheng="http://schemas.android.com/apk/res/com.husheng.mobilesafe"
6、自定义我们的属性，在Res/values/attrs.xml
<?xml version="1.0" encoding="utf-8"?>
<resources>
<declare-styleable name="TextView">
<attr name="title" format="string" />
<attr name="desc_on" format="string" />
<attr name="desc_off" format="string" />
</declare-styleable>
</resources>
7、使用我们自定义的属性
例如：
husheng:title="设置自动更新"
husheng:desc_on="设置自动更新已经开启"
husheng:desc_off="设置自动更新已经关闭"
8、在我们自定义控件的带有两个参数的构造方法里AttributeSet attrs 取出我们的属性值，关联自定义布局文件对应的控件。
③md5加密
md5可以多次加密，加大解密难度。public class MD5Utils {
/**
* md5加密方法
* @param password
* @return
*/
public static String md5Password(String password) {
try {
// 得到一个信息摘要器
MessageDigest digest = MessageDigest.getInstance("md5");
byte[] result = digest.digest(password.getBytes());
StringBuffer buffer = new StringBuffer();
// 把没一个byte 做一个与运算 0xff;
for (byte b : result) {
// 与运算
int number = b & 0xff;// 加盐
String str = Integer.toHexString(number);
// System.out.println(str);
if (str.length() == 1) {
buffer.append("0");
}
buffer.append(str);
}
// 标准的md5加密后的结果
return buffer.toString();
} catch (NoSuchAlgorithmException e) {
// TODO Auto-generated catch block
e.printStackTrace();
return "";
}
}
}④手机防盗密码设置
通过弹出对话框来设置密码<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="300dip"
android:layout_height="wrap_content"
android:gravity="center_horizontal"
android:orientation="vertical"
android:background="#ffffff"
>
<TextView
android:layout_width="300dip"
android:layout_height="50dip"
android:background="#009900"
android:gravity="center"
android:text="请输入密码"
android:textColor="#ffffff"
android:textSize="22sp" />
<EditText
android:id="@+id/et_setup_pwd"
android:layout_width="280dip"
android:layout_height="wrap_content"
android:hint="请输入密码"
android:inputType="textPassword" />
<LinearLayout
android:layout_width="300dip"
android:layout_height="wrap_content"
android:gravity="center_horizontal"
android:orientation="horizontal" >
<Button
android:background="@drawable/button_select"
android:id="@+id/ok"
android:layout_width="140dip"
android:layout_height="wrap_content"
android:text="确定"
android:textColor="#ffffff"/>
<Button
android:background="@drawable/button_select"
android:id="@+id/cancel"
android:layout_width="140dip"
android:layout_height="wrap_content"
android:text="修改"
android:textColor="#ffffff" />
</LinearLayout>
</LinearLayout><?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="300dip"
android:layout_height="wrap_content"
android:gravity="center_horizontal"
android:orientation="vertical"
android:background="#ffffff"
>
<TextView
android:layout_width="300dip"
android:layout_height="50dip"
android:background="#009900"
android:gravity="center"
android:text="设置密码"
android:textColor="#ffffff"
android:textSize="22sp" />
<EditText
android:id="@+id/et_setup_pwd"
android:layout_width="280dip"
android:layout_height="wrap_content"
android:hint="请输入密码"
android:inputType="textPassword" />
<EditText
android:id="@+id/et_setup_confirm"
android:layout_width="280dip"
android:layout_height="wrap_content"
android:hint="请再次输入密码"
android:inputType="textPassword" />
<LinearLayout
android:layout_width="300dip"
android:layout_height="wrap_content"
android:gravity="center_horizontal"
android:orientation="horizontal" >
<Button
android:background="@drawable/button_select"
android:id="@+id/ok"
android:layout_width="140dip"
android:layout_height="wrap_content"
android:text="确定"
android:textColor="#ffffff"/>
<Button
android:background="@drawable/button_select"
android:id="@+id/cancel"
android:layout_width="140dip"
android:layout_height="wrap_content"
android:text="取消"
android:textColor="#ffffff"/>
</LinearLayout>
</LinearLayout>public class HomeActivity extends Activity {
private EditText et_setup_pwd;
private EditText et_setup_confirm;
private Button ok;
private Button cancel;
private AlertDialog dialog;
private boolean flag;
private GridView list_home;
private MyAdapter adapter;
private static String [] names = {
"手机防盗","通讯卫士","软件管理",
"进程管理","流量统计","手机杀毒",
"缓存清理","高级工具","设置中心"
};
private static int[] ids = {
R.drawable.safe,R.drawable.callmsgsafe,R.drawable.app,
R.drawable.taskmanager,R.drawable.netmanager,R.drawable.trojan,
R.drawable.sysoptimize,R.drawable.atools,R.drawable.settings
};
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_home);
list_home = (GridView) findViewById(R.id.list_home);
adapter = new MyAdapter();
list_home.setAdapter(adapter);
list_home.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
switch (position) {
case 8://进入设置中心
Intent intent = new Intent(HomeActivity.this,SettingActivity.class);
startActivity(intent);
break;
case 0://进入手机防盗页面
showLostFindDialog();
default:
break;
}
}
});
}
private void showLostFindDialog() {
// TODO 自动生成的方法存根
if(isSetupPwd()){
//已经设置密码了，弹出的是输入对话框
showEnterDialog();
}else{
//没有设置密码，弹出的是设置密码对话框
showSetupPwdDialog();
}
}
private void showSetupPwdDialog() {
// TODO 自动生成的方法存根
AlertDialog.Builder builder = new Builder(HomeActivity.this);
// 自定义一个布局文件
View view = View.inflate(HomeActivity.this, R.layout.dialog_setup_password, null);
et_setup_pwd = (EditText) view.findViewById(R.id.et_setup_pwd);
et_setup_confirm = (EditText) view.findViewById(R.id.et_setup_confirm);
ok = (Button) view.findViewById(R.id.ok);
cancel = (Button) view.findViewById(R.id.cancel);
cancel.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
//把这个对话框取消掉
dialog.dismiss();
}
});
ok.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// 取出密码
String password = et_setup_pwd.getText().toString().trim();
String password_confirm = et_setup_confirm.getText().toString().trim();
SharedPreferences.Editor editor = getSharedPreferences("password",MODE_PRIVATE).edit();
//判断是否一致才去保存
if(password.equals(password_confirm)&!(password.isEmpty())){
//一致的话，就保存密码，把对话框消掉，还要进入手机防盗页面
editor.putString("password", MD5Utils.md5Password(password));//保存加密后的
editor.commit();
dialog.dismiss();
Toast.makeText(HomeActivity.this, "密码设置成功", 0).show();
Intent intent = new Intent(HomeActivity.this,LostFindActivity.class);
startActivity(intent);
}else{
if(password.isEmpty()){
Toast.makeText(HomeActivity.this, "密码不能为空", 0).show();
}else{
editor.putString("password", null);//保存加密后的
editor.commit();
Toast.makeText(HomeActivity.this, "密码不一致", 0).show();
return ;
}
}
}
});
dialog = builder.create();
dialog.setView(view, 0, 0, 0, 0);
dialog.show();
}
private void showEnterDialog() {
// TODO 自动生成的方法存根
AlertDialog.Builder builder = new Builder(HomeActivity.this);
// 自定义一个布局文件
View view = View.inflate(HomeActivity.this, R.layout.dialog_enter_password, null);
et_setup_pwd = (EditText) view.findViewById(R.id.et_setup_pwd);
ok = (Button) view.findViewById(R.id.ok);
cancel = (Button) view.findViewById(R.id.cancel);
cancel.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
//把这个对话框取消掉
SharedPreferences pref = getSharedPreferences("password", MODE_PRIVATE);
// 取出密码
String password = et_setup_pwd.getText().toString().trim();
String savePassword = pref.getString("password", "");//取出加密后的
if(password.isEmpty()){
Toast.makeText(HomeActivity.this, "密码为空", 1).show();
return;
}
if(MD5Utils.md5Password(password).equals(savePassword)){
//输入的密码是我之前设置的密码
//把对话框消掉，进入主页面；
dialog.dismiss();
showSetupPwdDialog();
Toast.makeText(HomeActivity.this, "密码正确", 1).show();
Intent intent = new Intent(HomeActivity.this,LostFindActivity.class);
startActivity(intent);
}else{
Toast.makeText(HomeActivity.this, "密码错误", 1).show();
et_setup_pwd.setText("");
return;
}
}
});
ok.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
SharedPreferences pref = getSharedPreferences("password", MODE_PRIVATE);
// 取出密码
String password = et_setup_pwd.getText().toString().trim();
String savePassword = pref.getString("password", "");//取出加密后的
if(password.isEmpty()){
Toast.makeText(HomeActivity.this, "密码为空", 1).show();
return;
}
if(MD5Utils.md5Password(password).equals(savePassword)){
//输入的密码是我之前设置的密码
//把对话框消掉，进入主页面；
dialog.dismiss();
Toast.makeText(HomeActivity.this, "密码正确", 1).show();
Intent intent = new Intent(HomeActivity.this,LostFindActivity.class);
startActivity(intent);
}else{
Toast.makeText(HomeActivity.this, "密码错误", 1).show();
et_setup_pwd.setText("");
return;
}
}
});
dialog = builder.create();
dialog.setView(view, 0, 0, 0, 0);
dialog.show();
}
private boolean isSetupPwd() {
// TODO 自动生成的方法存根
SharedPreferences pref = getSharedPreferences("password", MODE_PRIVATE);
String name = pref.getString("password", "");
if(name == null || name.equals("")){
Log.v("--->>", "没有设置密码");
return false;
}else{
Log.v("--->>", "已设置密码");
return true;
}}
private class MyAdapter extends BaseAdapter{
@Override
public int getCount() {
// TODO Auto-generated method stub
return names.length;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
// TODO Auto-generated method stub
View view = View.inflate(HomeActivity.this, R.layout.list_item_home, null);
ImageView iv_item = (ImageView) view.findViewById(R.id.iv_item);
TextView tv_item = (TextView) view.findViewById(R.id.tv_item);
tv_item.setText(names[position]);
iv_item.setImageResource(ids[position]);
return view;
}
@Override
public Object getItem(int position) {
// TODO Auto-generated method stub
return null;
}
@Override
public long getItemId(int position) {
// TODO Auto-generated method stub
return 0;
}
}
}public class LostFindActivity extends Activity{
private SharedPreferences sp;
private boolean flag;
private TextView reSet;
private Handler handler = new Handler() {
public void handleMessage(Message msg) {
switch (msg.what) {
case 1:
Log.v("--->>","Checked" );
Intent intent = new Intent(LostFindActivity.this,Setup1Activity.class);
startActivity(intent);
//关闭当前页面
finish();
break;
}
}
};
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO 自动生成的方法存根
super.onCreate(savedInstanceState);
SharedPreferences pref = getSharedPreferences("config", MODE_PRIVATE);
flag=pref.getBoolean("config", false);
if(flag){
// 就在手机防盗页面
Log.v("--->", "已经设置向导");
setContentView(R.layout.activity_lost_find);
}else{
setContentView(R.layout.activity_lost_find);
Log.v("--->", "还没有设置向导");//还没有做过设置向导
new Thread(new Runnable() {
@Override
public void run() {
Message message = new Message();
message.what = 1;
handler.sendMessage(message);
}
}).start();
}
}
public void reEnterSetup(View view){
Intent intent = new Intent(this,Setup1Activity.class);
startActivity(intent);
//关闭当前页面
finish();
}
}
⑤手机设置向导
public class Setup1Activity extends Activity {
private Button Setup1_next;
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_setup1);
Log.v("--->", "setup1");
Setup1_next = (Button) findViewById(R.id.Setup1_next);
Setup1_next.setOnClickListener(new OnClickListener(){
@Override
public void onClick(View v) {
// TODO 自动生成的方法存根
Intent intent = new Intent(Setup1Activity.this,Setup2Activity.class);
startActivity(intent);
finish();
}
});
}
}public class Setup2Activity extends Activity {
private Button Setup2_next;
private Button Setup2_pre;
private TextView sim_desc;
private CheckBox sim_status;
private SharedPreferences sp;
private int flag;
private int button_flag;
private Handler handler = new Handler() {
public void handleMessage(Message msg) {
switch (msg.what) {
case 1:
Log.v("--->>","Checked" );
String flag = "SIM卡已经绑定";
sim_desc.setText(flag);
sim_desc.invalidate();
break;
case 0:
Log.v("--->>","unChecked" );
String flag1 = "SIM卡没有绑定";
sim_desc.setText(flag1);
sim_desc.invalidate();
break;
}
}
};
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_setup2);
Log.v("--->", "setup2");
sim_status = (CheckBox) findViewById(R.id.sim_status);
sim_desc = (TextView) findViewById(R.id.sim_desc);
SharedPreferences pref = getSharedPreferences("sim", MODE_PRIVATE);
flag=pref.getInt("sim_flag", 0);
switch (flag) {
case 1:
Log.v("--->>","sim Checked" );
sim_status.setChecked(true);
String flag1 = "SIM卡已经绑定";
sim_desc.setText(flag1);
sim_desc.invalidate();
break;
case 0:
Log.v("--->>","sim unChecked" );
sim_status.setChecked(false);
Log.v("--->>","sim_status unChecked" );
String flag2 = "SIM卡没有绑定";
sim_desc.setText(flag2);
Log.v("--->>","sim_desc unChecked" );
sim_desc.invalidate();
break;
}
/*****************************************************************/
sim_status.setOnClickListener(new OnClickListener(){
@Override
public void onClick(View v) {
// TODO 自动生成的方法存根
new Thread(new Runnable() {
SharedPreferences.Editor editor = getSharedPreferences("sim",MODE_PRIVATE).edit();
@Override
public void run() {
Message message = new Message();
if(sim_status.isChecked()){
message.what = 1;
editor.putInt("sim_flag", 1);
editor.commit();
}else{
message.what = 0;
editor.putInt("sim_flag", 0);
editor.commit();
}
handler.sendMessage(message);
}
}).start();
}
});
/***************************************************************/
Setup2_next = (Button) findViewById(R.id.setup2_next);
Setup2_next.setOnClickListener(new OnClickListener(){
@Override
public void onClick(View v) {
// TODO 自动生成的方法存根
SharedPreferences pref = getSharedPreferences("sim", MODE_PRIVATE);
button_flag=pref.getInt("sim_flag", 0);
switch (button_flag) {
case 1:
Intent intent = new Intent(Setup2Activity.this,Setup3Activity.class);
startActivity(intent);
finish();
break;
case 0:
Intent intent2 = new Intent(Setup2Activity.this,HomeActivity.class);
startActivity(intent2);
finish();
break;
}
}
});
/****************************************************************/
Setup2_pre = (Button) findViewById(R.id.setup2_pre);
Setup2_pre.setOnClickListener(new OnClickListener(){
@Override
public void onClick(View v) {
// TODO 自动生成的方法存根
Intent intent = new Intent(Setup2Activity.this,Setup1Activity.class);
startActivity(intent);
finish();
}
});
/****************************************************************/
}
}public class Setup3Activity extends Activity {
private Button Setup3_next;
private Button Setup3_pre;
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_setup3);
/***************************************************************/
Setup3_next = (Button) findViewById(R.id.setup3_next);
Setup3_next.setOnClickListener(new OnClickListener(){
@Override
public void onClick(View v) {
// TODO 自动生成的方法存根
Log.v("--->", "go to setup4");
Intent intent = new Intent(Setup3Activity.this,Setup4Activity.class);
startActivity(intent);
finish();
}
});
/****************************************************************/
Setup3_pre = (Button) findViewById(R.id.setup3_pre);
Setup3_pre.setOnClickListener(new OnClickListener(){
@Override
public void onClick(View v) {
// TODO 自动生成的方法存根
Log.v("--->", "go to setup2");
Intent intent = new Intent(Setup3Activity.this,Setup2Activity.class);
startActivity(intent);
finish();
}
});
/****************************************************************/
}
}public class Setup4Activity extends Activity {
private Button Setup4_next;
private Button Setup4_pre;
private TextView safe_desc;
private CheckBox safe_status;
private SharedPreferences sp;
private int flag;
private Handler handler = new Handler() {
public void handleMessage(Message msg) {
switch (msg.what) {
case 1:
Log.v("--->>","Checked" );
String flag = "防盗保护已经开启";
safe_desc.setText(flag);
safe_desc.invalidate();
break;
case 0:
Log.v("--->>","unChecked" );
String flag1 = "防盗保护没有开启";
safe_desc.setText(flag1);
safe_desc.invalidate();
break;
}
}
};
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_setup4);
Log.v("--->>","setup4" );
// sp = getSharedPreferences("config", MODE_PRIVATE);
safe_status = (CheckBox) findViewById(R.id.safe_status);
safe_desc = (TextView) findViewById(R.id.safe_desc);
SharedPreferences pref = getSharedPreferences("safe", MODE_PRIVATE);
flag=pref.getInt("safe_flag", 0);
switch (flag) {
case 1:
Log.v("--->>","safe Checked" );
safe_status.setChecked(true);
String flag1 = "防盗保护已经开启";
safe_desc.setText(flag1);
safe_desc.invalidate();
break;
case 0:
Log.v("--->>","safe unChecked" );
safe_status.setChecked(false);
Log.v("--->>","safe_status unChecked" );
String flag2 = "防盗保护没有开启";
safe_desc.setText(flag2);
Log.v("--->>","safe_desc unChecked" );
safe_desc.invalidate();
break;
}
/*****************************************************************/
safe_status.setOnClickListener(new OnClickListener(){
@Override
public void onClick(View v) {
// TODO 自动生成的方法存根
new Thread(new Runnable() {
SharedPreferences.Editor editor = getSharedPreferences("safe",MODE_PRIVATE).edit();
@Override
public void run() {
Message message = new Message();
if(safe_status.isChecked()){
message.what = 1;
editor.putInt("safe_flag", 1);
editor.commit();
}else{
message.what = 0;
editor.putInt("safe_flag", 0);
editor.commit();
}
handler.sendMessage(message);
}
}).start();
}
});
/***************************************************************/
Setup4_next = (Button) findViewById(R.id.setup4_next);
Setup4_next.setOnClickListener(new OnClickListener(){
@Override
public void onClick(View v) {
// TODO 自动生成的方法存根
SharedPreferences.Editor editor = getSharedPreferences("config",MODE_PRIVATE).edit();
editor.putBoolean("config", true);
editor.commit();
Intent intent = new Intent(Setup4Activity.this,HomeActivity.class);
startActivity(intent);
finish();
}
});
/****************************************************************/
Setup4_pre = (Button) findViewById(R.id.setup4_pre);
Setup4_pre.setOnClickListener(new OnClickListener(){
@Override
public void onClick(View v) {
// TODO 自动生成的方法存根
Intent intent = new Intent(Setup4Activity.this,Setup3Activity.class);
startActivity(intent);
finish();
}
});
/****************************************************************/
}
}
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