简单的 Android 拍照并显示以及获取路径后上传
Activity 中的代码，我只贴出重要的事件部分代码
public void doPhoto(View view)
{
destoryBimap();
String state = Environment.getExternalStorageState();
if (state.equals(Environment.MEDIA_MOUNTED)) {
Intent intent = new Intent("android.media.action.IMAGE_CAPTURE");
startActivityForResult(intent, 1);
} else {
Toast.makeText(MainActivity.this, "没有SD卡", Toast.LENGTH_LONG).show();
}
} @Override
protected void onActivityResult(int requestCode, int resultCode, Intent data)
{
Uri uri = data.getData();
if (uri != null) {
this.photo = BitmapFactory.decodeFile(uri.getPath());
}
if (this.photo == null) {
Bundle bundle = data.getExtras();
if (bundle != null) {
this.photo = (Bitmap) bundle.get("data");
} else {
Toast.makeText(MainActivity.this, "拍照失败", Toast.LENGTH_LONG).show();
return;
}
} FileOutputStream fileOutputStream = null;
try {
// 获取 SD 卡根目录
String saveDir = Environment.getExternalStorageDirectory() + "/meitian_photos";
// 新建目录
File dir = new File(saveDir);
if (! dir.exists()) dir.mkdir();
// 生成文件名
SimpleDateFormat t = new SimpleDateFormat("yyyyMMddssSSS");
String filename = "MT" + (t.format(new Date())) + ".jpg";
// 新建文件
File file = new File(saveDir, filename);
// 打开文件输出流
fileOutputStream = new FileOutputStream(file);
// 生成图片文件
this.photo.compress(Bitmap.CompressFormat.JPEG, 100, fileOutputStream);
// 相片的完整路径
this.picPath = file.getPath();
ImageView imageView = (ImageView) findViewById(R.id.showPhoto);
imageView.setImageBitmap(this.photo);
} catch (Exception e) {
e.printStackTrace();
} finally {
if (fileOutputStream != null) {
try {
fileOutputStream.close();
} catch (Exception e) {
e.printStackTrace();
}
}
}
} /**
* 销毁图片文件
*/
private void destoryBimap()
{
if (photo != null && ! photo.isRecycled()) {
photo.recycle();
photo = null;
}
}
Layout 布局页面
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical"
>
<ScrollView
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical"
>
<Button
android:id="@+id/doPhoto"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:padding="10dp"
android:layout_marginBottom="10dp"
android:text="拍照"
android:onClick="doPhoto"
/>
<TextView
android:id="@+id/showContent"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="10dp"
/>
<ImageView
android:id="@+id/showPhoto"
android:layout_width="fill_parent"
android:layout_height="250dp"
android:scaleType="centerCrop"
android:src="@drawable/add"
android:layout_marginBottom="10dp"
/>
</LinearLayout>
</ScrollView>
</LinearLayout>
其中的上传工具类请查看该文章：