package com.example.wang.myapplication;
import android.content.Intent;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.EditText;
import android.widget.Toast;
public class MainActivity
extends AppCompatActivity {
EditText et_usercode;
EditText et_password;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
et_password=
(EditText)findViewById(R.id.et_password);
et_usercode=
(EditText)findViewById(R.id.et_usercode);
}
public void zhuce(View v)
{
Intent intent=
new Intent(
this,ZhuceActivity.
class);
startActivityForResult(intent,1
);
}
String username;
String usercode;
String password;
@Override
protected void onActivityResult(
int requestCode,
int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode==1
)
{
if (resultCode==
RESULT_OK)
{
username=data.getStringExtra("name"
);
usercode=data.getStringExtra("code"
);
password=data.getStringExtra("pass"
);
}
}
}
public void denglu(View v)
{
String et_code=
et_usercode.getText().toString();
String et_pass=
et_password.getText().toString();
if (et_code.trim().length()==0||et_pass.trim().length()==0
)
{
Toast.makeText(MainActivity.this, "用户名或密码不能为空"
, Toast.LENGTH_SHORT).show();
return;
}
if (et_code==
null||!
et_code.equals(usercode))
{
Toast.makeText(MainActivity.this, "用户未注册"
, Toast.LENGTH_SHORT).show();
return;
}
if (et_pass==
null||!
et_pass.equals(password))
{
Toast.makeText(MainActivity.this, "密码错误"
, Toast.LENGTH_SHORT).show();
return;
}
else
{
Toast.makeText(this,"用户登录成功"
,Toast.LENGTH_LONG).show();
//传递信息到TestActivity页面
Intent intent=
new Intent(
this,TestActivity.
class);
intent.putExtra("code"
,usercode);
intent.putExtra("name"
,username);
startActivity(intent);
}
}
}
MainActivity
package com.example.wang.myapplication;
import android.content.Intent;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;
public class ZhuceActivity
extends AppCompatActivity {
EditText usercode;
EditText username;
EditText password;
Button bt_quxiao;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_zhuce);
usercode=
(EditText)findViewById(R.id.usercode);
username=
(EditText)findViewById(R.id.username);
password=
(EditText)findViewById(R.id.password);
bt_quxiao=
(Button)findViewById(R.id.bt_quxiao);
bt_quxiao.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
setResult(RESULT_CANCELED,null);
finish();
}
});
}
public void queding(View v)
{
String user_name=
username.getText().toString();
if (user_name==
null||user_name.trim().length()==0
)
{
Toast.makeText(ZhuceActivity.this, "请正确输入用户名"
, Toast.LENGTH_SHORT).show();
return;
}
String user_code=
usercode.getText().toString();
if (user_code==
null||user_code.trim().length()==0
)
{
Toast.makeText(ZhuceActivity.this, "请正确输入用户代码"
, Toast.LENGTH_SHORT).show();
return;
}
String pass_word=
password.getText().toString();
if (pass_word==
null||pass_word.trim().length()==0
)
{
Toast.makeText(ZhuceActivity.this, "请正确填写用户密码"
, Toast.LENGTH_SHORT).show();
return;
}
Intent intent=
new Intent();
intent.putExtra("name"
,user_name );
intent.putExtra("code"
,user_code);
intent.putExtra("pass"
,pass_word);
setResult(RESULT_OK,intent);
finish();
}
}
ZhuceActivity
package com.example.wang.myapplication;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;
public class TestActivity
extends AppCompatActivity {
Button bt_1;
EditText et_1;
TextView tv_1;
TextView tv_2;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_test);
et_1=
(EditText)findViewById(R.id.et_1);
tv_1=
(TextView)findViewById(R.id.tv_1);
tv_2=
(TextView)findViewById(R.id.tv_2);
//从上一个页面传递信息到本页面
Intent intent=
getIntent();
String str1=intent.getStringExtra("code"
);
String str2=intent.getStringExtra("name"
);
tv_1.setText("用户代码："+
str1);
tv_2.setText("用户名称："+
str2);
bt_1=
(Button)findViewById(R.id.bt_1);
//间接拨打电话
bt_1.setOnClickListener(
new View.OnClickListener() {
@Override
public void onClick(View v) {
// //方法1
// String str1=et_1.getText().toString();
//
// if (str1.trim().length()==0||str1==null)
// {
// Toast.makeText(TestActivity.this, "请正确填写号码", Toast.LENGTH_SHORT).show();
// return;
// }
//
// Intent intent=new Intent(Intent.ACTION_DIAL);
//
// intent.setData(Uri.parse("tel:"+str1));
//
// startActivity(intent);
//方法2 调用getphone()方法
String phone=
getphone();
if (phone==
null)
return;
Intent intent=
new Intent(Intent.ACTION_DIAL);
intent.setData(Uri.parse("tel:"+
phone));
startActivity(intent);
}
});
}
//由于方法重复使用，定义一个方法
public String getphone()
{
String phone=
et_1.getText().toString();
if (phone.trim().length()==0||phone==
null)
{
Toast.makeText(TestActivity.this, "请正确填写号码"
, Toast.LENGTH_SHORT).show();
return null;
}
else
{
return phone;
}
}
//直接拨打电话方法
public void zhibo(View v)
{
String phone=
getphone();
if (phone==
null)
return;
Intent intent=
new Intent(Intent.ACTION_CALL);
intent.setData(Uri.parse("tel:" +
phone));
try {
startActivity(intent);
}
catch (Exception e)
{
e.printStackTrace();
}
finish();
}
}
TestActivity
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout 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: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="com.example.wang.myapplication.MainActivity">
<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="用户代码"
android:id="@+id/et_usercode"/>
<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="密码"
android:layout_below="@id/et_usercode"
android:id="@+id/et_password"/>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@id/et_password">
<Button
android:layout_width="0dp"
android:layout_height="wrap_content"
android:text="登陆"
android:id="@+id/bt_denglu"
android:onClick="denglu"
android:layout_weight="1"/>
<Button
android:layout_width="0dp"
android:layout_height="wrap_content"
android:text="注册"
android:id="@+id/bt_zhuce"
android:onClick="zhuce"
android:layout_weight="1"/>
</LinearLayout>
</RelativeLayout>
activity_main
<?xml version="1.0" encoding="utf-8"?>
<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:layout_margin="16dp"
android:orientation="vertical"
>
<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="用户代码"
android:id="@+id/usercode"/>
<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="用户名称"
android:id="@+id/username"/>
<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="密码"
android:id="@+id/password"/>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
>
<Button
android:layout_width="0dp"
android:layout_height="wrap_content"
android:text="取消"
android:id="@+id/bt_quxiao"
android:layout_weight="1"/>
<Button
android:layout_width="0dp"
android:layout_height="wrap_content"
android:text="确定"
android:id="@+id/bt_queding"
android:layout_weight="1"
android:onClick="queding"/>
</LinearLayout>
</LinearLayout>
activity_zhuce
<?xml version="1.0" encoding="utf-8"?>
<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: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="com.example.wang.myapplication.TestActivity"
android:orientation="vertical">
<TextView
android:layout_width="match_parent"
android:layout_height="50dp"
android:id="@+id/tv_1" />
<TextView
android:layout_width="match_parent"
android:layout_height="50dp"
android:id="@+id/tv_2" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<EditText
android:layout_width="170dp"
android:layout_height="wrap_content"
android:hint="电话号码"
android:inputType="phone"
android:id="@+id/et_1"/>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="间接拨打"
android:id="@+id/bt_1"/>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="直接拨打"
android:id="@+id/bt_2"
android:onClick="zhibo"/>
</LinearLayout>
</LinearLayout>
activity_test
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转载于:https://www.cnblogs.com/wangchuanqi/p/5461844.html
相关资源：Android总结复习练习试题.doc
