大家好,又见面了,我是全栈君。
package com.example.showgetpic; import java.io.ByteArrayOutputStream; import java.io.FileNotFoundException; import java.io.InputStream; import android.app.Activity; import android.content.ContentResolver; import android.content.Intent; import android.database.Cursor; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.graphics.drawable.BitmapDrawable; import android.net.Uri; import android.os.Bundle; import android.provider.MediaStore; import android.util.Base64; import android.util.Log; import android.view.View; import android.view.View.OnClickListener; import android.widget.ImageView; import android.widget.LinearLayout; import android.widget.Toast; public class MainActivity extends Activity { private ImageView iv; private OnClickListener imgViewListener; private Bitmap myBitmap; private int REQUEST_OK = 1; private LinearLayout ly_list; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); iv = (ImageView) findViewById(R.id.iv); ly_list=(LinearLayout) findViewById(R.id.ly_list); iv.setOnClickListener(new OnClickListener() { @Override public void onClick(View arg0) { // TODO Auto-generated method stub Intent intent = new Intent(); //intent = new Intent(Intent.ACTION_GET_CONTENT); /* 开启Pictures画面Type设定为image */ intent.setType("image/*"); /* 使用Intent.ACTION_GET_CONTENT这个Action */ intent.setAction(Intent.ACTION_GET_CONTENT); /* 取得相片后返回本画面 */ startActivityForResult(intent, 1); } }); } @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { // TODO Auto-generated method stub if (requestCode == REQUEST_OK) { Uri selectedImage = data.getData(); try { Bitmap bitmap = BitmapFactory.decodeStream(this .getContentResolver().openInputStream(Uri.parse(selectedImage.toString()))); iv.setImageBitmap(bitmap); Toast.makeText(getApplicationContext(), "上传成功", Toast.LENGTH_SHORT).show(); } catch (FileNotFoundException e) { // TODO Auto-generated catch block e.printStackTrace(); } } super.onActivityResult(requestCode, resultCode, data); } // public static Bitmap getPicFromBytes(byte[] bytes, // BitmapFactory.Options opts) { // if (bytes != null) // if (opts != null) // return BitmapFactory.decodeByteArray(bytes, 0, bytes.length, // opts); // else // return BitmapFactory.decodeByteArray(bytes, 0, bytes.length); // return null; // } // // public static byte[] readStream(InputStream in) throws Exception { // byte[] buffer = new byte[1024]; // int len = -1; // ByteArrayOutputStream outStream = new ByteArrayOutputStream(); // // while ((len = in.read(buffer)) != -1) { // outStream.write(buffer, 0, len); // } // byte[] data = outStream.toByteArray(); // outStream.close(); // in.close(); // return data; // } }
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