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208 changes: 208 additions & 0 deletions
208
...va/edu/hzuapps/androidlabs/com1714080901123/Com1714080901123ActivityAmiiboSharePhoto.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,208 @@ | ||
| package edu.hzuapps.androidlabs.com1714080901123; | ||
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|
||
| import android.Manifest; | ||
| import android.annotation.TargetApi; | ||
| import android.content.ContentUris; | ||
| import android.content.Intent; | ||
| import android.content.pm.PackageManager; | ||
| import android.database.Cursor; | ||
| import android.graphics.Bitmap; | ||
| import android.graphics.BitmapFactory; | ||
| import android.net.Uri; | ||
| import android.os.Build; | ||
| import android.provider.DocumentsContract; | ||
| import android.provider.MediaStore; | ||
| import android.support.v4.app.ActivityCompat; | ||
| import android.support.v4.content.ContextCompat; | ||
| import android.support.v4.content.FileProvider; | ||
| import android.support.v7.app.AppCompatActivity; | ||
| import android.os.Bundle; | ||
| import android.support.v7.widget.Toolbar; | ||
| import android.util.Log; | ||
| import android.view.View; | ||
| import android.widget.Button; | ||
| import android.widget.ImageView; | ||
| import android.widget.TextView; | ||
| import android.widget.Toast; | ||
|
|
||
| import java.io.File; | ||
| import java.io.FileNotFoundException; | ||
| import java.io.IOException; | ||
|
|
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| public class Com1714080901123ActivityAmiiboSharePhoto extends AppCompatActivity { | ||
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|
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| Com1714080901123ClassDrawableID drawableID = new Com1714080901123ClassDrawableID(); | ||
| int i = 0; | ||
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| public static final int TAKE_PHOTO = 1; | ||
| public static final int CHOOSE_PHOTO =2; | ||
| protected ImageView imageViewPhoto; | ||
| protected Uri imageUri; | ||
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| @Override | ||
| protected void onCreate(Bundle savedInstanceState) { | ||
| super.onCreate(savedInstanceState); | ||
| setContentView(R.layout.activity_com1714080901123_amiibo_share_photo); | ||
| getSupportActionBar().hide(); | ||
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|
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| Toolbar toolbar = (Toolbar)findViewById(R.id.toolbar_amiibo_share_photo); //为toolbar设置返回键有效 | ||
| toolbar.setNavigationOnClickListener(new View.OnClickListener() { | ||
| @Override | ||
| public void onClick(View view) { | ||
| finish(); | ||
| } | ||
| }); | ||
|
|
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| //设置toolbar标题 | ||
| Intent intent = this.getIntent(); | ||
| i = intent.getIntExtra("imgButton", 0); | ||
| TextView textView = (TextView)findViewById(R.id.textView_amiibo_share_bar); | ||
| textView.setText(drawableID.getAmiiboName(i)); | ||
|
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| Button buttonTakePhoto = (Button)findViewById(R.id.button_amiibo_share_photo_camera); | ||
| Button buttonAlbum = (Button)findViewById(R.id.button_amiibo_share_photo_album); | ||
| imageViewPhoto = (ImageView)findViewById(R.id.imageView_amiibo_share_photo); | ||
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| buttonTakePhoto.setOnClickListener(new View.OnClickListener() { | ||
| @Override | ||
| public void onClick(View view) { | ||
| //创建File对象，用于存储拍照后的图片 | ||
| File outputImage = new File(getExternalCacheDir(), "output_image.jpg"); //存储在应用关联缓存目录下 | ||
|
|
||
| try { | ||
| if (outputImage.exists()) { | ||
| outputImage.delete(); | ||
| } | ||
| outputImage.createNewFile(); | ||
| } catch (IOException e) { | ||
| e.printStackTrace(); | ||
| } | ||
| if (Build.VERSION.SDK_INT >= 24) { | ||
| //如果Android版本高于7.0 //从7.0开始，直接使用本地真实的uri被认为是不安全的 | ||
| imageUri = FileProvider.getUriForFile(Com1714080901123ActivityAmiiboSharePhoto.this, | ||
| "com.example.cameraalbumtest.fileprovider", outputImage); | ||
| } else { | ||
| imageUri = Uri.fromFile(outputImage); | ||
| } | ||
| //启动相机程序 | ||
| Intent intent1 = new Intent("android.media.action.IMAGE_CAPTURE"); | ||
| intent1.putExtra(MediaStore.EXTRA_OUTPUT, imageUri); | ||
| startActivityForResult(intent1, TAKE_PHOTO); | ||
| } | ||
| }); | ||
|
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| buttonAlbum.setOnClickListener(new View.OnClickListener() { | ||
| @Override | ||
| public void onClick(View view) { | ||
| //如果没有读写SD卡的权限，则询问是否授予权限 | ||
| if (ContextCompat.checkSelfPermission(Com1714080901123ActivityAmiiboSharePhoto.this, | ||
| Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) { | ||
| ActivityCompat.requestPermissions(Com1714080901123ActivityAmiiboSharePhoto.this, | ||
| new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE}, 1); | ||
| } else { | ||
| openAlbum(); | ||
| } | ||
| } | ||
| }); | ||
| } | ||
|
|
||
| @Override | ||
| protected void onActivityResult(int requestCode, int resultCode, Intent data) { | ||
| switch (requestCode) { | ||
| case TAKE_PHOTO: //拍照的响应 | ||
| if (resultCode == RESULT_OK) { | ||
| try { | ||
| //将拍摄的照片显示出来 | ||
| Bitmap bitmap = BitmapFactory.decodeStream(getContentResolver().openInputStream(imageUri)); | ||
| imageViewPhoto.setImageBitmap(bitmap); | ||
| //Log.d("TakePhoto","success"); //test | ||
| } catch (FileNotFoundException e) { | ||
| e.printStackTrace(); | ||
| } | ||
| } | ||
| break; | ||
| case CHOOSE_PHOTO: //访问相册的响应 | ||
| if (resultCode == RESULT_OK) { | ||
| //判断手机系统版本号 | ||
| if (Build.VERSION.SDK_INT >= 19) { | ||
| //4.4及以上 //从4.4开始，选取相册中的图片不再返回图片真实的uri了，而是一个封装过的uri，因此需要特别解析它 | ||
| handleImageOnKitKat(data); | ||
| } else { | ||
| handleImageBeforeKitKat(data); | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
|
||
| //打开相册 | ||
| protected void openAlbum() { | ||
| Intent intent = new Intent("android.intent.action.GET_CONTENT"); | ||
| intent.setType("image/*"); | ||
| startActivityForResult(intent, CHOOSE_PHOTO); | ||
| } | ||
|
|
||
| //响应ActivityCompat.requestPermissions | ||
| @Override | ||
| public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) { | ||
| switch (requestCode) { | ||
| case 1: | ||
| if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) { | ||
| openAlbum(); | ||
| } else { | ||
| Toast.makeText(this, "你没有权限访问相册", Toast.LENGTH_SHORT).show(); | ||
| } | ||
| break; | ||
| } | ||
| } | ||
|
|
||
| @TargetApi(19) | ||
| private void handleImageOnKitKat(Intent data) { | ||
| String imagePath = null; | ||
| Uri uri = data. getData(); | ||
| if (DocumentsContract.isDocumentUri(this, uri)) { | ||
| //如果是document类型的Uri，则通过document id处理 | ||
| String docId = DocumentsContract.getDocumentId(uri); | ||
| if ("com.android.providers.media.documents".equals(uri.getAuthority())) { | ||
| //如果uri的authority是media格式，document id还需要在进行一次解析，要通过字符串分割的方式取出后半部分才能得到真正的数字id | ||
| String id = docId.split(":")[1]; //解析出 media格式的id | ||
| String selection = MediaStore.Images.Media._ID + "=" + id; //构建条件语句 | ||
| imagePath = getImagePath(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, selection); | ||
| } else if ("com.android.providers.downloads.documents".equals(uri.getAuthority())) { | ||
| Uri contentUri = ContentUris.withAppendedId(Uri.parse("content://downloads/public_downloads"), Long.valueOf(docId)); | ||
| imagePath = getImagePath(contentUri, null); | ||
| } | ||
| } else if ("content".equalsIgnoreCase(uri.getScheme())) { | ||
| //如果是 content 类型的 uri，则使用普通方式处理 | ||
| imagePath = getImagePath(uri, null); | ||
| } else if ("file".equalsIgnoreCase(uri.getScheme())) { | ||
| imagePath = uri.getPath(); | ||
| } | ||
| displayImage(imagePath); //根据图片路径显示图片 | ||
| } | ||
|
|
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| private void handleImageBeforeKitKat(Intent data) { | ||
| Uri uri = data.getData(); | ||
| String imagePath = getImagePath(uri, null); | ||
| displayImage(imagePath); | ||
| } | ||
|
|
||
| private String getImagePath(Uri uri, String selection) { | ||
| String path = null; | ||
| //通过 uri 和 selection 来获取真实的图片路径 | ||
| Cursor cursor = getContentResolver().query(uri, null, selection, null, null); | ||
| if (cursor.moveToFirst()) { | ||
| path = cursor.getString(cursor.getColumnIndex(MediaStore.Images.Media.DATA)); | ||
| cursor.close(); | ||
| } | ||
| return path; | ||
| } | ||
|
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| private void displayImage(String imagePath) { | ||
| if(imagePath != null) { | ||
| Bitmap bitmap = BitmapFactory.decodeFile(imagePath); | ||
| imageViewPhoto.setImageBitmap(bitmap); | ||
| } else { | ||
| Toast.makeText(this, "获取图片失败", Toast.LENGTH_SHORT).show(); | ||
| } | ||
| } | ||
| } |
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