Android 获取手机应用数据联系人，图片，拍照等-Toy模板网

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1、获取手机联系人

获取手机信息前得获取权限

在得到权限后就能获取到手机联系人的信息

在manifest里面注册权限

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

判断是否有权限

//请求权限
    public void requestPermission(){
        if (ActivityCompat.checkSelfPermission(this, Manifest.permission.READ_CONTACTS)
        == PackageManager.PERMISSION_GRANTED){//应用需求权限是否已经授权0已授权-1没有授权
            //有权限的处理事件
//            List<Contact> contacts=getContacts();
//            for (Contact c:contacts) {
//                Log.d("","re===="+c.toString());
//            }
        }  else {//没有权限进行申请
            ActivityCompat.requestPermissions(this
            ,new String[]{Manifest.permission.READ_CONTACTS},1);

        }
    }

获取联系人数据

//获取联系人信息
    private List<Contact> getContacts() {
        List<Contact> contacts=new ArrayList<>();
        ContentResolver resolver = getContentResolver();
        Uri uri= ContactsContract.CommonDataKinds.Phone.CONTENT_URI;//电话的URI
        Cursor cursor = resolver.query(uri
                , new String[]{ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME, ContactsContract.CommonDataKinds.Phone.NUMBER}//手机的联系人，联系电话号
                , null, null, null);

        String sql="insert into phonepeople(name,phone) values(?,?)";
        SQLiteDatabase db=helper.getWritableDatabase();

                while (cursor.moveToNext()){
                    String name=cursor.getString(0);
                    String phone=cursor.getString(1);
                    contacts.add(new Contact(name,phone));
                    db.execSQL(sql,new Object[]{name,phone});
                }
                cursor.close();//关闭
                return contacts;
    }

附加一个请求权限的返回处理

 //处理权限返回值
    @Override
    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
        if (requestCode==1//判断请求码是否匹配到
        &&Manifest.permission.READ_CONTACTS.equals(permissions[0])//权限是否匹配
        &&grantResults[0]==PackageManager.PERMISSION_GRANTED){//返回的数值判断是否获得权限0获得-1没有
//            List<Contact> contacts=getContacts();
//            for (Contact c:contacts) {
//                Log.d("","on===="+c.toString());
//            }
        }else {
            Toast.makeText(this, "您没有权限读取联系人信息", Toast.LENGTH_LONG).show();
        }
    }

2、获得手机相册的里的图片

private void getPicFromAlbum() {
        //跳转到相册去挑选
        Intent intent=new Intent(Intent.ACTION_PICK);
        intent.setDataAndType(MediaStore.Images.Media.EXTERNAL_CONTENT_URI,"image/*");//
        startActivityForResult(intent,REQUEST_ALBUME);//需要返回数据

    }

处理返回的图片方式，根据业务需求可以进行自己设置，在此只是显示出来

//处理返回数据
    @Override
    protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
        super.onActivityResult(requestCode, resultCode, data);

        if (requestCode==REQUEST_ALBUME){
            //图库
            Uri uri=data.getData();
            imageView.setImageURI(uri);//将图库照片显示
        }else if (requestCode==REQUEST_IMAGE){
            //拍照
            imageView.setImageURI(imageuri);//将拍的照片显示
        }

    }

3、调用手机拍照

在manifest里面设置

<provider
            android:authorities="com.hfzy.mydome0805.dome1.fileprovider"
            android:name="androidx.core.content.FileProvider"
            android:grantUriPermissions="true">
            <meta-data android:resource="@xml/file_path" android:name="android.support.FILE_PROVIDER_PATHS"/>
        </provider>

创建@xml/file_path文件

android 获取通讯录权限,android,android studio

<paths xmlns:android="http://schemas.android.com/apk/res/android">

    <external-cache-path
        name="external_cache_path"
        path="."/>
</paths>

最后在进行调用

File file=new File(getExternalCacheDir(),"temp.jpg");
        imageuri=FileProvider.getUriForFile(this,"com.hfzy.mydome0805.dome1.fileprovider",file);

 private void getPicFromCamera() {
        //拍照
        Intent intent=new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
        intent.putExtra(MediaStore.EXTRA_OUTPUT,imageuri);//拍的图片存储在哪里
        startActivityForResult(intent,REQUEST_IMAGE);

    }

返回值的处理同上面相册返回数据的处理

联系人完整代码

public class MainActivity extends AppCompatActivity {

    private List<Contact> contactList=new ArrayList<>();
    private DBHelper helper;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        helper=new DBHelper(this,2);//创建表格

        ListView listView=findViewById(R.id.listV);

        requestPermission();
        contactList=getContacts();
        Myadapt myadapt=new Myadapt(this,contactList);//自定义的适配器
        listView.setAdapter(myadapt);


        listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {
                Intent intent=new Intent();
                Contact contact=contactList.get(i);
                intent.putExtra("name",contact.getName());
                intent.putExtra("phone",contact.getPhone());

                setResult(RESULT_OK,intent);
                finish();
            }
        });

    }

    //请求权限
    public void requestPermission(){
        if (ActivityCompat.checkSelfPermission(this, Manifest.permission.READ_CONTACTS)
        == PackageManager.PERMISSION_GRANTED){//应用需求权限是否已经授权0已授权-1没有授权
            //有权限的处理事件
//            List<Contact> contacts=getContacts();
//            for (Contact c:contacts) {
//                Log.d("","re===="+c.toString());
//            }
        }  else {//没有权限进行申请
            ActivityCompat.requestPermissions(this
            ,new String[]{Manifest.permission.READ_CONTACTS},1);

        }
    }

    //处理权限返回值
    @Override
    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
        if (requestCode==1//判断请求码是否匹配到
        &&Manifest.permission.READ_CONTACTS.equals(permissions[0])//权限是否匹配
        &&grantResults[0]==PackageManager.PERMISSION_GRANTED){//返回的数值判断是否获得权限0获得-1没有
//            List<Contact> contacts=getContacts();
//            for (Contact c:contacts) {
//                Log.d("","on===="+c.toString());
//            }
        }else {
            Toast.makeText(this, "您没有权限读取联系人信息", Toast.LENGTH_LONG).show();
        }
    }

    //获取联系人信息
    private List<Contact> getContacts() {
        List<Contact> contacts=new ArrayList<>();
        ContentResolver resolver = getContentResolver();
        Uri uri= ContactsContract.CommonDataKinds.Phone.CONTENT_URI;//电话的URI
        Cursor cursor = resolver.query(uri
                , new String[]{ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME, ContactsContract.CommonDataKinds.Phone.NUMBER}//手机的联系人，联系电话号
                , null, null, null);

        String sql="insert into phonepeople(name,phone) values(?,?)";
        SQLiteDatabase db=helper.getWritableDatabase();

                while (cursor.moveToNext()){
                    String name=cursor.getString(0);
                    String phone=cursor.getString(1);
                    contacts.add(new Contact(name,phone));
                    db.execSQL(sql,new Object[]{name,phone});
                }
                cursor.close();//关闭
                return contacts;
    }
}

相册和拍照的完整代码文章来源地址https://www.toymoban.com/news/detail-529287.html

public class AfterActivity extends AppCompatActivity implements View.OnClickListener {

    public static final int REQUEST_ALBUME=1;
    public static final int REQUEST_IMAGE=2;
    private ImageView imageView;
    private Uri imageuri;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_after);

        Button button=findViewById(R.id.But1);
        Button button1=findViewById(R.id.But2);
        imageView=findViewById(R.id.IV);

        button.setOnClickListener(this);
        button1.setOnClickListener(this);

//        File filepath=getExternalCacheDir();
//        imageuri = Uri.fromFile(file);

        File file=new File(getExternalCacheDir(),"temp.jpg");
        imageuri=FileProvider.getUriForFile(this,"com.hfzy.mydome0805.dome1.fileprovider",file);

    }


    @Override
    public void onClick(View view) {
        switch (view.getId()){
            case R.id.But1:
                getPicFromAlbum();
                break;
            case R.id.But2:
                getPicFromCamera();
                break;
        }
    }

    private void getPicFromCamera() {
        //拍照
        Intent intent=new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
        intent.putExtra(MediaStore.EXTRA_OUTPUT,imageuri);//拍的图片存储在哪里
        startActivityForResult(intent,REQUEST_IMAGE);

    }

    private void getPicFromAlbum() {
        //跳转到相册去挑选
        Intent intent=new Intent(Intent.ACTION_PICK);
        intent.setDataAndType(MediaStore.Images.Media.EXTERNAL_CONTENT_URI,"image/*");//
        startActivityForResult(intent,REQUEST_ALBUME);//需要返回数据

    }

    //处理返回数据
    @Override
    protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
        super.onActivityResult(requestCode, resultCode, data);

        if (requestCode==REQUEST_ALBUME){
            //图库
            Uri uri=data.getData();
            imageView.setImageURI(uri);//将图库照片显示
        }else if (requestCode==REQUEST_IMAGE){
            //拍照
            imageView.setImageURI(imageuri);//将拍的照片显示
        }

    }
}

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