如何在android中共享imageSwitcher中的图像
如何编写代码以共享gallery中查看的当前图像(在imageSwitcher中)。我有一个应用程序,它在一个图库中有多个图像,选中后将加载到imageSwitcher中。所以现在我想使用Share Intent弹出的Share Options窗口来共享当前正在查看和发送的图像 这是我的代码: TextView-drawableId;文本视图字符串复制如何在android中共享imageSwitcher中的图像,android,share,gallery,bitmapfactory,imageswitcher,Android,Share,Gallery,Bitmapfactory,Imageswitcher,如何编写代码以共享gallery中查看的当前图像(在imageSwitcher中)。我有一个应用程序,它在一个图库中有多个图像,选中后将加载到imageSwitcher中。所以现在我想使用Share Intent弹出的Share Options窗口来共享当前正在查看和发送的图像 这是我的代码: TextView-drawableId;文本视图字符串复制 int imgs[] = { R.drawable.pg1,
int imgs[] =
{
R.drawable.pg1,
R.drawable.pg2,
};
String imgs1[] =
{
"R.drawable.pg1",
"R.drawable.pg2",
};
int imgs2[] =
{
R.drawable.infinity_96_58uvb_pg1,
R.drawable.infinity_96_58uvb_pg2,
};
ImageSwitcher imgSwitcher, imageSwitcher2;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.activity_main);
drawableId = (TextView) findViewById(R.id.textView);
stringCopy = (TextView) findViewById(R.id.textView2);
imgSwitcher = (ImageSwitcher) findViewById(imageSwitcher1);
imgSwitcher.setFactory(this);
final Gallery gallery = (Gallery) findViewById(R.id.gallery1);
gallery.setAdapter(new MainActivity.ImageAdapter(this));
gallery.setOnItemClickListener(new AdapterView.OnItemClickListener() {
public void onItemClick(AdapterView<?> parent, View v, int position,
long id) {
imgSwitcher.setImageResource(imgs2[position]);
drawableId.setText(imgs1[position]+"");
Toast.makeText(MainActivity.this, imgSwitcher + "", Toast.LENGTH_LONG).show();
imgSwitcher.setVisibility(View.VISIBLE);
}
});
FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
fab.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
postPicture();
}
public boolean postPicture() {
String a = drawableId.getText().toString();
stringCopy.setText(a);
Bitmap b = BitmapFactory.decodeFile(a);
Intent share = new Intent(Intent.ACTION_SEND);
share.setType("image/*");
ByteArrayOutputStream bytes = new ByteArrayOutputStream();
b.compress(Bitmap.CompressFormat.JPEG, 100, bytes);
File f = new File(Environment.getExternalStorageDirectory() + File.separator + "temporary_file.jpg");
try {
f.createNewFile();
FileOutputStream fo = new FileOutputStream(f);
fo.write(bytes.toByteArray());
} catch (IOException e) {
e.printStackTrace();
}
share.putExtra(Intent.EXTRA_STREAM, Uri.parse("file:///sdcard/temporary_file.jpg"));
startActivity(Intent.createChooser(share, "Share image File"));
Toast.makeText(MainActivity.this, "clicked", Toast.LENGTH_LONG).show();
return true;
}
});
}
int-imgs[]=
{
R.drawable.pg1,
R.drawable.pg2,
};
字符串imgs1[]=
{
“R.drawable.pg1”,
“R.drawable.pg2”,
};
int imgs2[]=
{
R.drawable.infinity_96_58uvb_pg1,
R.drawable.infinity_96_58uvb_pg2,
};
图像切换器IMG开关,图像切换器2;
@凌驾
创建时的公共void(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
requestWindowFeature(窗口。功能\u无\u标题);
setContentView(R.layout.activity_main);
drawableId=(TextView)findViewById(R.id.TextView);
stringCopy=(TextView)findViewById(R.id.textView2);
imgSwitcher=(图像切换器)findViewById(图像切换器1);
imgSwitcher.setFactory(本);
最终画廊画廊=(画廊)findViewById(R.id.gallery1);
gallery.setAdapter(新的MainActivity.ImageAdapter(this));
gallery.setOnItemClickListener(新的AdapterView.OnItemClickListener(){
公共控件单击(AdapterView父对象、视图v、内部位置、,
长id){
imgSwitcher.setImageResource(imgs2[位置]);
drawableId.setText(imgs1[位置]+“”);
Toast.makeText(MainActivity.this,imgSwitcher+“”,Toast.LENGTH_LONG).show();
imgSwitcher.setVisibility(View.VISIBLE);
}
});
FloatingActionButton fab=(FloatingActionButton)findViewById(R.id.fab);
fab.setOnClickListener(新视图.OnClickListener(){
公共void onClick(视图){
后期();
}
公共布尔后置图像(){
字符串a=drawableId.getText().toString();
stringCopy.setText(a);
位图b=位图工厂.decodeFile(a);
意向共享=新意向(意向.行动\发送);
share.setType(“image/*”);
ByteArrayOutputStream字节=新建ByteArrayOutputStream();
b、 压缩(位图.CompressFormat.JPEG,100,字节);
文件f=新文件(Environment.getExternalStorageDirectory()+File.separator+“temporary_File.jpg”);
试一试{
f、 createNewFile();
FileOutputStream fo=新的FileOutputStream(f);
fo.write(bytes.toByteArray());
}捕获(IOE异常){
e、 printStackTrace();
}
share.putExtra(Intent.EXTRA_流,Uri.parse(“file:///sdcard/temporary_file.jpg"));
startActivity(Intent.createChooser(共享,“共享图像文件”);
Toast.makeText(MainActivity.this,“单击”,Toast.LENGTH_LONG.show();
返回true;
}
});
}
这是我的错误:
E/BitmapFactory:无法解码流:java.io.FileNotFoundException:R.drawable.pg1:打开失败:eNot(没有这样的文件或目录)
D/AndroidRuntime:关闭虚拟机
E/AndroidRuntime:致命异常:主
进程:com.example.mt_br.floatingactionbutton,PID:13647
java.lang.NullPointerException:尝试在空对象引用上调用虚拟方法“boolean android.graphics.Bitmap.compress(android.graphics.Bitmap$CompressFormat,int,java.io.OutputStream)”
位于com.example.mt_br.floatingactionbutton.MainActivity$2.postPicture(MainActivity.java:112)
在com.example.mt_br.floatingactionbutton.MainActivity$2.onClick(MainActivity.java:101)中,我替换了以下内容:
public boolean postPicture() {
int Position = gallery.getSelectedItemPosition();
Bitmap b = BitmapFactory.decodeResource(getResources(), imgs2[Position]);