[android] 手机卫士保存安全号码详解手机开发

调用ListView对象的setOnItemClickListener()方法，设置条目的点击事件，参数：OnItemClickListener对象

使用匿名内部类实现，重写onClick()方法，传递进来的参数：ListView，当前View，position,id

根据索引位置把当前这条电话号码传回去

调用List对象的get()方法，得到Map，调用get(key)方法，得到这条电话

调用setResult()方法，返回去数据，参数：响应码，Intent对象

获取Intent对象，new出来

调用Intent对象的putExtra(key,val)，把电话放进去

调用finish()方法关闭当前页面

开启这个的activity使用的是startActivityForResult()

重写onActivityResult()方法，传递进来Intent对象

判断Intent对象是否为null

调用Intent对象的getStringExtra()方法，获取到电话号码

把电话放在Edittext上，当点击下一步的时候保存到SP中

activity

package com.qingguow.mobilesafe; 
 
import android.content.Intent; 
import android.content.SharedPreferences; 
import android.content.SharedPreferences.Editor; 
import android.os.Bundle; 
import android.text.TextUtils; 
import android.view.View; 
import android.widget.EditText; 
import android.widget.Toast; 
 
public class SecGuide3Activity extends BaseSecGuideActivity { 
    private EditText et_sec_phone; 
    private SharedPreferences sp; 
 
    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
        super.onCreate(savedInstanceState); 
        setContentView(R.layout.activity_lost_find3); 
        et_sec_phone = (EditText) findViewById(R.id.et_sec_phone); 
        sp = getSharedPreferences("config", MODE_PRIVATE); 
        String phone = sp.getString("secphone", ""); 
        et_sec_phone.setText(phone); 
    } 
 
    public void nextStep(View v) { 
        showNext(); 
    } 
 
    public void preStep(View v) { 
        showPre(); 
    } 
 
    @Override 
    public void showPre() { 
 
        Intent intent = new Intent(this, SecGuide2Activity.class); 
        startActivity(intent); 
        finish(); 
    } 
 
    @Override 
    public void showNext() { 
        String phone = et_sec_phone.getText().toString().trim(); 
 
        if (TextUtils.isEmpty(phone)) { 
            Toast.makeText(this, "请填写安全号码", 1).show(); 
            return; 
        } 
 
        Editor editor = sp.edit(); 
        editor.putString("secphone", phone); 
        editor.commit(); 
        Intent intent = new Intent(this, SecGuide4Activity.class); 
        startActivity(intent); 
        finish(); 
    } 
 
    /** 
     * 选择联系人 
     */ 
    public void selectContacts(View v) { 
        Intent intent = new Intent(this, SelectContactsActivity.class); 
        startActivityForResult(intent, 0); 
    } 
 
    @Override 
    protected void onActivityResult(int requestCode, int resultCode, Intent data) { 
        // TODO Auto-generated method stub 
        super.onActivityResult(requestCode, resultCode, data); 
        if (data != null) { 
            String phone = data.getStringExtra("phone").replace("-", "") 
                    .replace(" ", ""); 
            et_sec_phone.setText(phone); 
        } 
    } 
}

SelectContactsActivity

package com.qingguow.mobilesafe; 
 
import java.util.List; 
import java.util.Map; 
 
import android.app.Activity; 
import android.content.Intent; 
import android.os.Bundle; 
import android.view.View; 
import android.widget.AdapterView; 
import android.widget.AdapterView.OnItemClickListener; 
import android.widget.ListView; 
import android.widget.SimpleAdapter; 
 
import com.qingguow.mobilesafe.utils.PhoneContactsUtil; 
/** 
 * 选择联系人 
 * @author taoshihan 
 * 
 */ 
public class SelectContactsActivity extends Activity { 
    private ListView lv_select_contacts; 
    private List<Map<String,String>> contacts; 
    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
        super.onCreate(savedInstanceState); 
        setContentView(R.layout.activity_select_contacts); 
        lv_select_contacts=(ListView) findViewById(R.id.lv_select_contacts); 
        contacts=PhoneContactsUtil.getContacts(this); 
        lv_select_contacts.setAdapter(new SimpleAdapter(this, contacts, R.layout.select_contacts_item, new String[]{"name","phone"}, new int[]{R.id.tv_contact_name,R.id.tv_contact_phone})); 
        lv_select_contacts.setOnItemClickListener(new OnItemClickListener() { 
 
            @Override 
            public void onItemClick(AdapterView<?> arg0, View arg1, int position, 
                    long arg3) { 
                String phone=contacts.get(position).get("phone"); 
                Intent data=new Intent(); 
                data.putExtra("phone", phone); 
                setResult(0, data); 
                finish(); 
            } 
        }); 
    } 
}

原创文章，作者：奋斗，如若转载，请注明出处：https://blog.ytso.com/5426.html

[android] 手机卫士保存安全号码详解手机开发

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