Android使用ContentProvider怎么实现查看系统短信功能

这篇文章主要介绍“Android使用ContentProvider怎么实现查看系统短信功能”，在日常操作中，相信很多人在Android使用ContentProvider怎么实现查看系统短信功能问题上存在疑惑，小编查阅了各式资料，整理出简单好用的操作方法，希望对大家解答”Android使用ContentProvider怎么实现查看系统短信功能”的疑惑有所帮助！接下来，请跟着小编一起来学习吧！

activity_main.xml

<?xml version="1.0" encoding="utf-8"?><LinearLayout 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"    android:orientation="vertical"    tools:context=".MainActivity">    <TextView        android:id="@+id/tv_show"        android:layout_width="match_parent"        android:layout_height="0dp"        android:textSize="20dp"        android:layout_weight="9"></TextView>    <Button        android:id="@+id/bt_show"        android:layout_weight="1"        android:text="查看短信"        android:onClick="show"        android:layout_width="match_parent"        android:layout_height="0dp"></Button></LinearLayout>

Sms.java

public class Sms {    private int id;    private String address;    private String body;    public Sms(int id, String address, String body) {        this.id = id;        this.address = address;        this.body = body;    }    public int getId() {        return id;    }    public void setId(int id) {        this.id = id;    }    public String getAddress() {        return address;    }    public void setAddress(String address) {        this.address = address;    }    public String getBody() {        return body;    }    public void setBody(String body) {        this.body = body;    }}

MainActivity.java

public class MainActivity extends AppCompatActivity {    private TextView tv_show;    private Button bt_show;    private List<Sms> list=new ArrayList<>();    private String text="";    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        tv_show=findViewById(R.id.tv_show);        bt_show=findViewById(R.id.bt_show);    }    public void show(View view) {        ActivityCompat.requestPermissions(MainActivity.this,new String[]{Manifest.permission.READ_SMS},1);        }        public void getSms(){             Uri uri= Uri.parse("content://sms/");            ContentResolver contentResolver=getContentResolver();            Cursor cursor = contentResolver.query(uri, new String[]{"_id", "address",                    "body"}, null, null, null);            if (cursor!=null&&cursor.getCount()>0){                if (list!=null){                    list.clear();                }                text="";                while (cursor.moveToNext()){                    int id=cursor.getInt(0);                    String name=cursor.getString(1);                    String body=cursor.getString(2);                    Sms sms=new Sms(id,name,body);                    list.add(sms);                }                for (int i=0;i<list.size();i++){                    text+="手机号码："+list.get(i).getAddress()+"\n";                    text+="短信内容："+list.get(i).getBody()+"\n\n";                }                tv_show.setText(text);            }        }    @Override    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {        super.onRequestPermissionsResult(requestCode, permissions, grantResults);        if (requestCode==1){            for (int i=0;i<permissions.length;i++){                if (grantResults[i]== PackageManager.PERMISSION_GRANTED){                    getSms();                }else {                    Toast.makeText(MainActivity.this,"无权限",Toast.LENGTH_SHORT).show();                }            }        }    }}

到此，关于“Android使用ContentProvider怎么实现查看系统短信功能”的学习就结束了，希望能够解决大家的疑惑。理论与实践的搭配能更好的帮助大家学习，快去试试吧！若想继续学习更多相关知识，请继续关注编程网网站，小编会继续努力为大家带来更多实用的文章！