彻底解决android拍照后无法显示的问题

这是对上篇"android 图片拍照,相册选图,剪切并显示"的文章之后的改进

上一篇文章虽然能解决图片的拍照剪切以及显示,但是发现他有一个缺点, 如果该程序单独运行,貌似没有任何问题, 但是把它整合到项目中后,发现有时在小米手机或者三星手机上面仍旧会失败, 原因可能是拍照后导致内存不足,从而拍照后返回的时候,没有返回数据,导致图片显示失败,当然这是一定的概率事件.

针对这一情况做如下改变,代码如下:

package com.kuiboo.xiaoyao.Activity;

import android.app.Activity;

import android.content.Intent;

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.util.Log;

import android.view.View;

import android.widget.Toast;

import com.kuiboo.xiaoyao.R;

import com.kuiboo.xiaoyao.util.ActionSheetDialog;

import com.kuiboo.xiaoyao.util.CircleImageView;

import java.io.BufferedOutputStream;

import java.io.ByteArrayOutputStream;

import java.io.File;

import java.io.FileNotFoundException;

import java.io.FileOutputStream;

import java.io.InputStream;

import java.util.Random;

public class EditMineActivity extends Activity {

    private static final String TAG = "MainActivity";

    private static final int TAKE_SMALL_PICTURE = 2;

    private static final int CROP_BIG_PICTURE = 3;

    private static final int CROP_SMALL_PICTURE = 4;

    private static final int CHOOSE_SMALL_PICTURE = 6;

    private static final String IMAGE_FILE_LOCATION = "file:///sdcard/temp.jpg";

    private Uri imageUri;//存储图片的uri地址

    CircleImageView iv;//自定义圆形图片,或者使用第三方库,或者基本ImageView都可以

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_mine_edit);

        Log.e("执行了几次","aaa");

        iv= (CircleImageView) findViewById(R.id.photoView);

        iv.setBorderWidth(5);

        imageUri = Uri.parse(IMAGE_FILE_LOCATION);

        iv.setOnClickListener(new View.OnClickListener() {

            @Override

            public void onClick(View v) {

                new ActionSheetDialog(EditMineActivity.this).Builder()

                        .addSheetItem("拍照", ActionSheetDialog.SheetItemColor.BULE, new ActionSheetDialog.OnSheetItemClickListener() {

                            @Override

                            public void onClick(int witch) {

                                openCamera();

                            }

                        }).addSheetItem("打开相册", ActionSheetDialog.SheetItemColor.BULE, new ActionSheetDialog.OnSheetItemClickListener() {

                    @Override

                    public void onClick(int witch) {

                        openPic();

                    }

                }).show();

            }

        });

    }

    //获取相册图片

    private void openPic() {

        Intent intent = new Intent(Intent.ACTION_GET_CONTENT, null);

        intent.setType("image/*");

        intent.putExtra("crop", "true");

        intent.putExtra("aspectX", 2);

        intent.putExtra("aspectY", 1);

        intent.putExtra("outputX", 200);

        intent.putExtra("outputY", 100);

        intent.putExtra("scale", true);

        intent.putExtra("return-data", true);

        intent.putExtra("outputFormat", Bitmap.CompressFormat.JPEG.toString());

        intent.putExtra("noFaceDetection", true);

        startActivityForResult(intent, CHOOSE_SMALL_PICTURE);

    }

    //获取拍照小图片

    private void openCamera() {

        if(imageUri == null) {

            Log.e(TAG, "图片uri不能为空!");

        }

        Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);

        intent.putExtra(MediaStore.EXTRA_OUTPUT, imageUri);

        startActivityForResult(intent, TAKE_SMALL_PICTURE);

    }

    //剪切

    private void cropImageUri(Uri uri, int outputX, int outputY, int requestCode){

        Intent intent = new Intent("com.android.camera.action.CROP");

        intent.setDataAndType(uri, "image/*");

        intent.putExtra("crop", "true");

        intent.putExtra("aspectX", 2);

        intent.putExtra("aspectY", 1);

        intent.putExtra("outputX", outputX);

        intent.putExtra("outputY", outputY);

        intent.putExtra("scale", true);

        intent.putExtra(MediaStore.EXTRA_OUTPUT, uri);

        intent.putExtra("return-data", false);

        intent.putExtra("outputFormat", Bitmap.CompressFormat.JPEG.toString());

        intent.putExtra("noFaceDetection", true); // 没有人脸识别

        startActivityForResult(intent, requestCode);

    }

    private Bitmap decodeUriAsBitmap(Uri uri){

        Bitmap bitmap = null;

        try {

            bitmap = BitmapFactory.decodeStream(getContentResolver().openInputStream(uri));

        } catch (FileNotFoundException e) {

            e.printStackTrace();

            return null;

        }

        return bitmap;

    }

    @Override

    protected void onActivityResult(int requestCode, int resultCode, Intent data) {

        super.onActivityResult(requestCode, resultCode, data);

        if(resultCode != Activity.RESULT_OK){

            Log.e(TAG, "requestCode = " + requestCode);

            Log.e(TAG, "resultCode = " + resultCode);

            Log.e(TAG, "data = " + data);

            return;

        }else{

            switch (requestCode) {

//                case CROP_BIG_PICTURE://剪切大图

//                    if(imageUri != null){

//                        Bitmap bitmap = decodeUriAsBitmap(imageUri);

//                        iv.setImageBitmap(bitmap);

//                    }

//                    break;

                case TAKE_SMALL_PICTURE://拍照

                    cropImageUri(imageUri, 260, 200, CROP_SMALL_PICTURE);

                    break;

                case CROP_SMALL_PICTURE://剪切小图

                    if(imageUri != null){

                        Bitmap bitmap = decodeUriAsBitmap(imageUri);

                        iv.setImageBitmap(bitmap);

                    }else{

                        Log.e(TAG, "CROP_SMALL_PICTURE: data = " + data);

                    }

                    break;

                case CHOOSE_SMALL_PICTURE://相册选择

                    if(data != null){

                        Bitmap bitmap = data.getParcelableExtra("data");

                        iv.setImageBitmap(bitmap);

                    }else{

                        Log.e(TAG, "CHOOSE_SMALL_PICTURE: data = " + data);

                    }

                    break;

            }

        }

    }

}

效果图就不上了 ,和上一篇文章效果图一样.

巴特西

彻底解决android拍照后无法显示的问题

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