从相册或拍照获取头像

来源：互联网发布：行书字帖知乎编辑：程序博客网时间：2024/05/22 06:25

<LinearLayout    android:id="@+id/tou"    android:layout_below="@+id/text_title"    android:layout_width="match_parent"    android:layout_height="50dp"    android:orientation="horizontal">    <TextView        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="头像"/>    <ImageView        android:id="@+id/iv_img"        android:layout_marginLeft="260dp"        android:layout_width="50dp"        android:layout_height="50dp"        android:src="@mipmap/ic_launcher"/></LinearLayout>

package com.bwie.mydishidanyuan;import android.content.Context;import android.content.Intent;import android.content.SharedPreferences;import android.graphics.Bitmap;import android.graphics.BitmapFactory;import android.net.Uri;import android.os.Bundle;import android.os.Environment;import android.provider.MediaStore;import android.support.v7.app.AppCompatActivity;import android.util.Base64;import android.util.Log;import android.view.View;import android.widget.Button;import android.widget.ImageView;import android.widget.LinearLayout;import android.widget.TextView;import android.widget.Toast;import java.io.ByteArrayInputStream;import java.io.ByteArrayOutputStream;import java.io.File;import java.io.IOException;import java.util.HashMap;import java.util.Map;import okhttp3.Call;import okhttp3.Callback;import okhttp3.OkHttpClient;import okhttp3.Request;import okhttp3.Response;public class MainActivity extends AppCompatActivity implements View.OnClickListener {    private ImageView iv_img;    private Button bt_camera;    private Button bt_xiangce;    private static final int PHOTO_REQUEST_CAREMA = 1;// 拍照    private static final int PHOTO_REQUEST_GALLERY = 2;// 从相册中选择    private static final int PHOTO_REQUEST_CUT = 3;// 结果    private static final String PHOTO_FILE_NAME = "temp_photo.jpg";    private File tempFile;    private LinearLayout linear;    private LinearLayout linear_name;    private TextView text_name;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        iv_img = (ImageView) findViewById(R.id.iv_img);        bt_camera = (Button) findViewById(R.id.bt_camera);        bt_xiangce = (Button) findViewById(R.id.bt_xiangce);//从SharedPreferences获取图片        linear = (LinearLayout) findViewById(R.id.linear);        linear_name = (LinearLayout) findViewById(R.id.name);        text_name = (TextView) findViewById(R.id.text_name);        getBitmapFromSharedPreferences();//监听两个按钮，相册按钮和相机按钮        bt_camera.setOnClickListener(this);        bt_xiangce.setOnClickListener(this);        /*linear_name.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View view) {                Intent intent = new Intent(MainActivity.this, Main2Activity.class);                startActivityForResult(intent,0);            }        });*/    }    /*@Override    public void onActivityReenter(int resultCode, Intent data) {        super.onActivityReenter(resultCode, data);        String result = data.getExtras().getString("result");        text_name.setText(result);    }*/    public void quxiao(View view){        linear.setVisibility(View.INVISIBLE);    }    @Override    public void onClick(View v) {        switch (v.getId()) {            case R.id.bt_camera:                // 激活相机                 Intent intent = new Intent("android.media.action.IMAGE_CAPTURE");                // 判断存储卡是否可以用，可用进行存储                if (hasSdcard()) {                    tempFile = new File(Environment.getExternalStorageDirectory(),                            PHOTO_FILE_NAME); // 从文件中创建uri                    Uri uri = Uri.fromFile(tempFile);                    intent.putExtra(MediaStore.EXTRA_OUTPUT, uri);                } // 开启一个带有返回值的Activity，请求码为PHOTO_REQUEST_CAREMA                 startActivityForResult(intent, PHOTO_REQUEST_CAREMA);                break;            case R.id.bt_xiangce:                // 激活系统图库，选择一张图片                 Intent intent1 = new Intent(Intent.ACTION_PICK);                intent1.setType("image/*");                // 开启一个带有返回值的Activity，请求码为PHOTO_REQUEST_GALLERY                startActivityForResult(intent1, PHOTO_REQUEST_GALLERY);                break;        }    }    private boolean hasSdcard() {        if (Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {            return true;        } else {            return false;        }    }    private void crop(Uri uri) {        // 裁剪图片意图        Intent intent = new Intent("com.android.camera.action.CROP");        intent.setDataAndType(uri, "image/*");        intent.putExtra("crop", "true");// 裁剪框的比例，1：1        intent.putExtra("aspectX", 1);        intent.putExtra("aspectY", 1);// 裁剪后输出图片的尺寸大小        intent.putExtra("outputX", 250);        intent.putExtra("outputY", 250);        intent.putExtra("outputFormat", "JPEG");// 图片格式        intent.putExtra("noFaceDetection", true);// 取消人脸识别        intent.putExtra("return-data", true);  // 开启一个带有返回值的Activity，请求码为PHOTO_REQUEST_CUT        startActivityForResult(intent, PHOTO_REQUEST_CUT);    }    @Override    protected void onActivityResult(int requestCode, int resultCode, Intent data) {        if (requestCode == PHOTO_REQUEST_GALLERY) {            // 从相册返回的数据            if (data != null) {                // 得到图片的全路径                 Uri uri = data.getData();                crop(uri);            }        } else if (requestCode == PHOTO_REQUEST_CAREMA) {            // 从相机返回的数据             if (hasSdcard()) {                crop(Uri.fromFile(tempFile));            } else {                Toast.makeText(MainActivity.this, "未找到存储卡，无法存储照片！", Toast.LENGTH_SHORT).show();            }        } else if (requestCode == PHOTO_REQUEST_CUT) {            // 从剪切图片返回的数据             if (data != null) {                Bitmap bitmap = data.getParcelableExtra("data");                /**          * 获得图片          */                iv_img.setImageBitmap(bitmap);                //保存到SharedPreferences                 saveBitmapToSharedPreferences(bitmap);            }            try {                // 将临时文件删除                 tempFile.delete();            } catch (Exception e) {                e.printStackTrace();            }        }        super.onActivityResult(requestCode, resultCode, data);    }    private void saveBitmapToSharedPreferences(Bitmap bitmap) {        ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();        bitmap.compress(Bitmap.CompressFormat.PNG, 80, byteArrayOutputStream);        byte[] byteArray = byteArrayOutputStream.toByteArray();        String imageString = new String(Base64.encodeToString(byteArray, Base64.DEFAULT));        SharedPreferences sharedPreferences = getSharedPreferences("testSP", Context.MODE_PRIVATE);        SharedPreferences.Editor editor = sharedPreferences.edit();        editor.putString("image", imageString);        editor.commit();        //上传头像        setImgByStr(imageString, "");    }    private void setImgByStr(String imgStr, String imgName) {        String url = "https://www.zhaoapi.cn/file/upload";        Map<String, String> params = new HashMap<String, String>();        params.put("id", "11111111");// 11111111        params.put("data", imgStr);        OkHttpClient okHttpClient = new OkHttpClient();        Request build = new Request.Builder().url(url).build();        okHttpClient.newCall(build).enqueue(new Callback() {            @Override            public void onFailure(Call call, IOException e) {                e.printStackTrace();            }            @Override            public void onResponse(Call call, Response response) throws IOException {                if (response.isSuccessful()){                    Log.i("上传成功", response.body().string());                    runOnUiThread(new Runnable() {                        @Override                        public void run() {                            Toast.makeText(MainActivity.this, "上传成功", Toast.LENGTH_SHORT).show();                        }                    });                }            }        });    }    private void getBitmapFromSharedPreferences() {        SharedPreferences sharedPreferences=getSharedPreferences("testSP", Context.MODE_PRIVATE);        //第一步:取出字符串形式的Bitmap        String imageString=sharedPreferences.getString("image", "");//第二步:利用Base64将字符串转换为ByteArrayInputStream        byte[] byteArray= Base64.decode(imageString, Base64.DEFAULT);        if(byteArray.length==0){            iv_img.setImageResource(R.mipmap.ic_launcher);        }else{            ByteArrayInputStream byteArrayInputStream=new ByteArrayInputStream(byteArray);            //第三步:利用ByteArrayInputStream生成Bitmap            Bitmap bitmap= BitmapFactory.decodeStream(byteArrayInputStream);            iv_img.setImageBitmap(bitmap);        }    }}

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