<?xml version="1.0" encoding="utf-8"?>

    
    
    
    
    
        
            
            
            
            
        
        
            
            
            
            
        
    

public class MainActivity extends AppCompatActivity {
  //list表
  private List informationsList01 = new ArrayList<>();
  //當(dāng)前消息列表
  ListView list01 ;
  //消息發(fā)送欄
  EditText editText01 ;
  //存放圖片
  ImageView imageView01;
  //消息發(fā)送按鈕
  Button button01_send ;
  //記錄數(shù)組長度
  int arr_num = 0;
  //定義一個數(shù)組
  String[] arr1 = new String[arr_num];
  //從相冊獲得圖片
  Bitmap bitmap;
  //判斷返回到的Activity
  private static final int IMAGE_REQUEST_CODE = 0;
  //圖片路徑
  private String path ;
  private Handler handler = new Handler(){
    @Override
    public void handleMessage(Message msg) {
      if((Integer)msg.obj==0){
        imageView01.setImageBitmap(bitmap);
      }
      super.handleMessage(msg);
    }
  };
  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    list01 = (ListView) findViewById(R.id.list1);
    editText01 = (EditText) findViewById(R.id.ifo_edit);
    imageView01 = (ImageView) findViewById(R.id.ifo_image);
    button01_send = (Button) findViewById(R.id.send);
    imageView01.setOnClickListener(new View.OnClickListener() {
      @Override
      public void onClick(View v) {
        if(ContextCompat.checkSelfPermission(MainActivity.this,
            Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED){
          ActivityCompat.requestPermissions(MainActivity.this,new String[]{
              Manifest.permission.WRITE_EXTERNAL_STORAGE
          },1);
        }
        Intent intent = new Intent(Intent.ACTION_PICK,
            android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
        startActivityForResult(intent, IMAGE_REQUEST_CODE);
      }
    });
    button01_send.setOnClickListener(new View.OnClickListener() {
      @Override
      public void onClick(View v) {
        if(((BitmapDrawable) ((ImageView) imageView01).getDrawable()).getBitmap() != null
            || editText01.getText().toString() != null){
          Informations xiaochouyu = new Informations(
              ((BitmapDrawable) ((ImageView) imageView01).getDrawable()).getBitmap(),
              editText01.getText().toString());
          informationsList01.add(xiaochouyu);
          EssayAdapter adapter = new EssayAdapter(MainActivity.this,
              R.layout.array_list,informationsList01);
          list01.setAdapter(adapter);
          editText01.setText("");
          imageView01.setImageBitmap(null);
          imageView01.setImageResource(R.drawable.addphoto);
        }
      }
    });
  }
  /*定義一個Handler，定義延時執(zhí)行的行為*/
  public void chnage(){
    new Thread(){
      @Override
      public void run() {
        while ( bitmap == null ){
          bitmap = BitmapFactory.decodeFile(path);
          Log.v("qwe","123");
        }
        Message message = handler.obtainMessage();
        message.obj = 0;
        handler.sendMessage(message);
      }
    }.start();
  }
  @Override
  protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    //在相冊里面選擇好相片之后調(diào)回到現(xiàn)在的這個activity中
    switch (requestCode) {
      case IMAGE_REQUEST_CODE://這里的requestCode是我自己設(shè)置的，就是確定返回到那個Activity的標(biāo)志
        if (resultCode == RESULT_OK) {//resultcode是setResult里面設(shè)置的code值
          try {
            Uri selectedImage = data.getData(); //獲取系統(tǒng)返回的照片的Uri
            String[] filePathColumn = {MediaStore.Images.Media.DATA};
            Cursor cursor = getContentResolver().query(selectedImage,
                filePathColumn, null, null, null);//從系統(tǒng)表中查詢指定Uri對應(yīng)的照片
            cursor.moveToFirst();
            int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
            path = cursor.getString(columnIndex); //獲取照片路徑
            cursor.close();
            BitmapFactory.Options options = new BitmapFactory.Options();
            options.inSampleSize = 1;
            bitmap = BitmapFactory.decodeFile(path,options);
            imageView01.setImageBitmap(bitmap);
            chnage();
            Toast.makeText(MainActivity.this,path,Toast.LENGTH_SHORT).show();
          } catch (Exception e) {
            // TODO Auto-generatedcatch block
            e.printStackTrace();
          }
        }
        break;
    }
  }
  @TargetApi(19)
  private void handleImageOmKitKat(Intent data){
    String imagePath = null;
    Uri uri = data.getData();
    if (DocumentsContract.isDocumentUri(this,uri)){
      //如果document類型是U日，則通過document id處理
      String docId = DocumentsContract.getDocumentId(uri);
      if ("com.android.providers.media.documents".equals(uri.getAuthority())){
        String id = docId.split(":")[1];//解析出數(shù)字格式id
        String selection = MediaStore.Images.Media._ID + "=" + id;
        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())){
      //如果是普通類型 用普通方法處理
      imagePath = getImagePath(uri,null);
    }else if ("file".equalsIgnoreCase(uri.getScheme())){
      //如果file類型位uri直街獲取圖片路徑即可
      imagePath = uri.getPath();
    }
    displayImage(imagePath);
  }
  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;
    //通過Uri和selection來獲取真實圖片路徑
    Cursor cursor = getContentResolver().query(uri, null, selection, null, null);
    if (cursor != null){
      if (cursor.moveToFirst()){
        path = cursor.getString(cursor.getColumnIndex(MediaStore.Images.Media.DATA));
      }
      cursor.close();
    }
    return path;
  }
  private void displayImage(String imagePath){
    if (imagePath != null){
      Bitmap bitmap = BitmapFactory.decodeFile(imagePath);
      imageView01.setImageBitmap(bitmap);
    }else {
      Toast.makeText(MainActivity.this,"fail to get image",Toast.LENGTH_SHORT).show();
    }
  }
}

public class EssayAdapter extends ArrayAdapter {
  private int resourceId;
  public EssayAdapter(Context context, int textViewResourceId,
            List objects){
    super(context, textViewResourceId, objects);
    resourceId = textViewResourceId;
  }
  @Override
  public View getView(int position, View convertView, ViewGroup parent) {
    Informations informations = getItem(position);
    View view = LayoutInflater.from(getContext()).inflate(resourceId,parent, false);
    ImageView informationImage = (ImageView) view.findViewById(R.id.image);
    TextView informationEssay = (TextView) view.findViewById(R.id.essay);
    informationImage.setImageBitmap(informations.getImageBitmap());
    informationEssay.setText(informations.getEssay());
    return view;
  }
}

public class Informations {
  //文體
  private String essay;
  //圖片
  private Bitmap imageId;
  Informations(Bitmap imageId, String essay){
    this.imageId = imageId;
    this.essay = essay;
  }
  Informations(){
    this.essay = null;
    this.imageId = null;
  }
  public String getEssay() {
    return essay;
  }
  public void setEssay(String essay) {
    this.essay = essay;
  }
  public Bitmap getImageBitmap() {
    return imageId;
  }
  public void setImageBitmap(Bitmap imageId) {
    this.imageId = imageId;
  }
}