获取联系人+把注册的账号密码放在登录页面

标签：ted   manager   utils   工具   intent   ext2   ast   type   val   

item自己添加布局：

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical" android:layout_width="match_parent"
    android:layout_height="match_parent">

    <TextView
        android:id="@+id/textView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="TextView" />

    <TextView
        android:id="@+id/textView2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentEnd="true"
        android:layout_alignParentRight="true"
        android:layout_alignParentTop="true"
        android:text="TextView" />
</RelativeLayout>

mian3的布局：

<?xml version="1.0" encoding="utf-8"?>
    <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="com.ning.day1.main.Main3Activity">
    <android.support.v7.widget.RecyclerView
        android:id="@+id/main3_recycler"
        android:layout_width="match_parent"
        android:layout_height="match_parent">

    </android.support.v7.widget.RecyclerView>
</RelativeLayout>

mian2的布局：

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="com.ning.day1.main.Main2Activity">


    <EditText
        android:id="@+id/editText3"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentTop="true"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="45dp"
        android:ems="10"
        android:inputType="textPersonName"
        android:text="Name" />

    <EditText
        android:id="@+id/editText4"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@+id/editText3"
        android:layout_alignStart="@+id/editText3"
        android:layout_below="@+id/editText3"
        android:layout_marginTop="36dp"
        android:ems="10"
        android:inputType="textPassword" />

    <EditText
        android:id="@+id/editText5"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@+id/editText4"
        android:layout_alignStart="@+id/editText4"
        android:layout_below="@+id/editText4"
        android:layout_marginTop="36dp"
        android:ems="10"
        android:inputType="textPassword" />

    <Button
        android:id="@+id/button3"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@+id/editText5"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="53dp"
        android:text="Button" />
</RelativeLayout>

mian的布局：

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"
    android:layout_height="match_parent" tools:context="com.ning.day1.main.MainActivity">


    <Button
        android:id="@+id/button"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="登录"
        android:layout_below="@+id/editText2"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="52dp" />

    <Button
        android:id="@+id/button2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@+id/button"
        android:layout_alignStart="@+id/button"
        android:layout_alignTop="@+id/button"
        android:layout_marginTop="75dp"
        android:text="注册" />

    <EditText
        android:id="@+id/editText"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentTop="true"
        android:layout_centerHorizontal="true"
        android:hint="请输入账号"
        android:layout_marginTop="66dp"
        android:ems="10"
        android:inputType="textPersonName" />

    <EditText
        android:id="@+id/editText2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@+id/editText"
        android:hint="请输入密码"
        android:layout_alignStart="@+id/editText"
        android:layout_below="@+id/editText"
        android:layout_marginTop="40dp"

        android:ems="10"
        android:inputType="textPassword" />
</RelativeLayout>

权限：

<uses-permission android:name="android.permission.READ_CONTACTS"/>

sp工具类：

package com.ning.day1.Shard;

import android.content.Context;
import android.content.SharedPreferences;

/**
 * Created by 行歌 on 2017/11/6.
 */

public class SP {
    public void setname(Context context,String name){
        SharedPreferences sharedPreferences = context.getSharedPreferences("", 0);
        SharedPreferences.Editor edit = sharedPreferences.edit();
        edit.putString("name",name);
        edit.commit();
    }
    public String getname(Context context){
        SharedPreferences sharedPreferences = context.getSharedPreferences("", 0);
        String name = sharedPreferences.getString("name", "");
        return name;
    }
    public void setpass(Context context,String pass){
        SharedPreferences sharedPreferences = context.getSharedPreferences("", 0);
        SharedPreferences.Editor edit = sharedPreferences.edit();
        edit.putString("pass",pass);
        edit.commit();
    }
    public String getpass(Context context){
        SharedPreferences sharedPreferences = context.getSharedPreferences("", 0);
        String pass = sharedPreferences.getString("pass", "");
        return pass;
    }
}

mian3：

package com.ning.day1.main;

import android.content.ContentResolver;
import android.content.DialogInterface;
import android.database.Cursor;
import android.os.Bundle;
import android.provider.ContactsContract;
import android.support.v7.app.AlertDialog;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.RecyclerView;
import android.support.v7.widget.StaggeredGridLayoutManager;
import android.view.View;

import com.ning.day1.Adapter.Adap;
import com.ning.day1.R;

import java.util.ArrayList;
import java.util.List;

public class Main3Activity extends AppCompatActivity {

    private List<Fri> list=new ArrayList<>();
    private RecyclerView main3_recycler;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main3);
        lodcontacts();
        initView();

    }

    private void initView() {
        main3_recycler = (RecyclerView) findViewById(R.id.main3_recycler);
        main3_recycler.setHasFixedSize(true);
        main3_recycler.setLayoutManager(new StaggeredGridLayoutManager(1,StaggeredGridLayoutManager.VERTICAL));
        final Adap adap = new Adap(this, list);
        main3_recycler.setAdapter(adap);
        main3_recycler.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                AlertDialog.Builder adialog=new AlertDialog.Builder(Main3Activity.this);
                adialog.setTitle("没时间了");
                adialog.setPositiveButton("确定", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {

                    }
                });
                adialog.setNegativeButton("取消", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {

                    }
                });
                adialog.show();
            }
        });

    }

    public List<Fri> lodcontacts(){
        //得到客户端
        ContentResolver cr = getContentResolver();
        Cursor cursor = cr.query(ContactsContract.Contacts.CONTENT_URI, null, null, null, null);
        if(cursor.moveToFirst()){
            do {
                Fri fri = new Fri();
                //联系人的姓名
                String contactsName = cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME));
                //联系人在数据库中的ID
                String pId = cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts._ID));
                Cursor phoneCursor = cr.query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null, ContactsContract.CommonDataKinds.Phone.CONTACT_ID + "=" + pId, null, null);
                String nuber=null;
                if(phoneCursor.moveToFirst()){
                    do {
                        //电话号码
                        nuber=phoneCursor.getString(phoneCursor.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));
                    }while (phoneCursor.moveToNext());
                    fri.name=contactsName;
                    fri.phone=nuber;
                    list.add(fri);

                }
            }while (cursor.moveToNext());
        }
        return list;
    }
}

main2：

package com.ning.day1.main;

import android.content.Intent;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.text.TextUtils;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;

import com.ning.day1.R;
import com.ning.day1.Shard.SP;

public class Main2Activity extends AppCompatActivity implements View.OnClickListener {

    private EditText editText3;
    private EditText editText4;
    private EditText editText5;
    private Button button3;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main2);
        initView();
    }

    private void initView() {
        editText3 = (EditText) findViewById(R.id.editText3);
        editText4 = (EditText) findViewById(R.id.editText4);
        editText5 = (EditText) findViewById(R.id.editText5);
        button3 = (Button) findViewById(R.id.button3);
        button3.setOnClickListener(this);
    }

    @Override
    public void onClick(View v) {
        switch (v.getId()) {
            case R.id.button3:
                Gap();
                break;
        }
    }

    private void Gap() {
        String s = editText3.getText().toString();
        String s1 = editText4.getText().toString();
        String s2 = editText5.getText().toString();
        if(!s1.equals(s2)){
            Toast.makeText(this, "密码不一致", Toast.LENGTH_SHORT).show();
        }else{
            SP sp = new SP();
            sp.setname(this,s);
            sp.setpass(this,s1);
            Intent intent=new Intent(Main2Activity.this,MainActivity.class);
            startActivity(intent);

        }
    }

    private void submit() {
        // validate
        String editText3String = editText3.getText().toString().trim();
        if (TextUtils.isEmpty(editText3String)) {
            Toast.makeText(this, "editText3String不能为空", Toast.LENGTH_SHORT).show();
            return;
        }

        String editText4String = editText4.getText().toString().trim();
        if (TextUtils.isEmpty(editText4String)) {
            Toast.makeText(this, "editText4String不能为空", Toast.LENGTH_SHORT).show();
            return;
        }

        String editText5String = editText5.getText().toString().trim();
        if (TextUtils.isEmpty(editText5String)) {
            Toast.makeText(this, "editText5String不能为空", Toast.LENGTH_SHORT).show();
            return;
        }

        // TODO validate success, do something


    }
}

main1：

package com.ning.day1.main;

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 com.ning.day1.R;
import com.ning.day1.Shard.SP;

public class MainActivity extends AppCompatActivity implements View.OnClickListener {

private Button button;
private Button button2;
private EditText editText;
private EditText editText2;
private SP sp=new SP();
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
initView();
}

private void initView() {
button = (Button) findViewById(R.id.button);
button2 = (Button) findViewById(R.id.button2);
editText = (EditText) findViewById(R.id.editText);
editText2 = (EditText) findViewById(R.id.editText2);
String getname = sp.getname(this);
String getpass = sp.getpass(this);
editText.setText(getname);
editText2.setText(getpass);
button.setOnClickListener(this);
button2.setOnClickListener(this);
}

@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.button:
langding();
break;
case R.id.button2:
intent();
break;
}
}

private void langding() {
Intent intent=new Intent(MainActivity.this,Main3Activity.class);
startActivity(intent);
}

private void intent() {
Intent intent=new Intent(MainActivity.this,Main2Activity.class);
startActivity(intent);
}



// TODO validate success, do something


}

Fri联系人存储在这里：

public class Fri {
   public String name;
   public String phone;

}

Adapter：

package com.ning.day1.Adapter;

import android.content.Context;
import android.support.v7.widget.RecyclerView;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;

import com.ning.day1.R;
import com.ning.day1.main.Fri;

import java.util.ArrayList;
import java.util.List;

/**
 * Created by 行歌 on 2017/11/6.
 */

public class Adap extends RecyclerView.Adapter<Adap.Itme> {

    Context context;
    List<Fri> list=new ArrayList<>();

    public Adap(Context context, List<Fri> list) {
        this.context = context;
        this.list = list;
    }

    @Override
    public Itme onCreateViewHolder(ViewGroup parent, int viewType) {
        return new Itme(View.inflate(context, R.layout.itme,null));
    }


    @Override
    public void onBindViewHolder(Itme holder, int position) {
        holder.data.setText(list.get(position).phone);
        holder.data1.setText(list.get(position).name);
    }


    @Override
    public int getItemCount() {
        return list.size();
    }

    public class Itme extends RecyclerView.ViewHolder {

        private final TextView data;
        private final TextView data1;

        public Itme(View itemView) {
            super(itemView);
            data = itemView.findViewById(R.id.textView);
            data1 = itemView.findViewById(R.id.textView2);
        }
    }
}

获取联系人+把注册的账号密码放在登录页面

标签：ted   manager   utils   工具   intent   ext2   ast   type   val   

原文地址：http://www.cnblogs.com/98k98k/p/7822828.html