从图库中选择图像并在 imageview 中显示 [英] Select image from gallery and show in imageview
本文介绍了从图库中选择图像并在 imageview 中显示的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我需要在手机中打开我的画廊并选择一张在活动中在imageview中打开的图片..没什么难的..但我有代码并且模拟器(genymotion)中的代码运行完美..但在真机小米Mi4上什么都没有.
I need Open my gallery in mobile phone and select one picture which opened in imageview on activity.. nothing hard.. but I have code and thise code in simulator (genymotion) run perfect.. but on real phone Xiaomi Mi4 nothing.
打开画廊选择项目，什么也没有.
Open gallery select item and nothing.
我没有更多手机:(
我尝试下载一些具有此主题的示例，并且每个示例都相同.. 当我选择项目应用程序什么都不做时打开画廊.
I try download some examples with this theme and every it's the same.. galery open when I select item app doing nothing.
您是否有一些从图库中选择图像并在 imageview 中显示的项目?如果是，请分享您的代码并将我上传到某处 .apk 以供尝试，因为我 .. :( :'(
Have you some project with select image from gallery and show in imageview? if yes please share your code and upload me somewhere .apk for try, because I .. :( :'(
我的毕业证
apply plugin: 'com.android.application'
android {
compileSdkVersion 25
buildToolsVersion "24.0.2"
defaultConfig {
applicationId "paradox.galopshop"
minSdkVersion 19
targetSdkVersion 25
versionCode 1
versionName "1.0"
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
exclude group: 'com.android.support', module: 'support-annotations'
compile 'com.android.support:appcompat-v7:23.2.1'
compile 'com.android.support:design:23.2.1'
compile 'com.squareup.picasso:picasso:2.5.2'
})
//Add library
// loaderimage
compile 'com.android.support:appcompat-v7:25.2.0'
compile 'com.android.support:design:25.2.0'
compile 'com.google.firebase:firebase-database:10.2.0'
compile 'com.android.support.test.espresso:espresso-core:2.2.2'
compile 'com.google.firebase:firebase-storage:10.2.0'
compile 'com.google.firebase:firebase-auth:10.2.0'
compile 'com.nostra13.universalimageloader:universal-image-loader:1.9.5'
compile 'com.google.firebase:firebase-crash:10.2.0'
testCompile 'junit:junit:4.12'
}
apply plugin: 'com.google.gms.google-services'
谢谢.
Intent i = new Intent();
i.setType("image/*");
i.setAction(Intent.ACTION_GET_CONTENT);
startActivityForResult(Intent.createChooser(i, "Select Picture"),SELECT_PICTURE );
protected void onActivityResult(int requestCode, int resultCode, Intent data){
if(resultCode==RESULT_OK){
if(requestCode==SELECT_PICTURE){
Uri selectedImageUri = data.getData();
if (null != selectedImageUri) {
// Get the path from the Uri
String path = getPathFromURI(selectedImageUri);
Log.i("IMAGE PATH TAG", "Image Path : " + path);
// Set the image in ImageView
ImageView imageView=(ImageView)findViewById(R.id.imageView2);
imageView.setImageURI(selectedImageUri);
TextView tw=(TextView)findViewById(R.id.addimage);
tw.setText("Načítané");
}
}
}
}
private String getPathFromURI(Uri contentUri) {
String res = null;
String[] proj = {MediaStore.Images.Media.DATA};
Cursor cursor = getContentResolver().query(contentUri, proj, null, null, null);
if (cursor!=null) {
if (cursor.moveToFirst()) {
int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
res = cursor.getString(column_index);
}
cursor.close();
} else {
Toast.makeText(this, "Cursor null" + proj, Toast.LENGTH_SHORT).show();
}
return res;
}
//////更新
protected void onImageViewClick(){
// ImageView imageView=(ImageView)findViewById(R.id.imageView2);
TextView tw=(TextView)findViewById(R.id.addimage);
tw.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
ImagePicker imgpicker= new ImagePicker();
imgpicker.getPickImageIntent(getApplicationContext());
}
});
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data){
Bitmap bitmap = ImagePicker.getBitmapFromResult(this, resultCode, data);
if (null != bitmap && resultCode == RESULT_OK) {
ImageView imageView=(ImageView)findViewById(R.id.imageView2);
imageView.setImageBitmap(bitmap);
TextView tw=(TextView)findViewById(R.id.addimage);
tw.setText("Načítané");
}
///////////////////////编辑2
///////////////////////edit 2
我发现 firebase 崩溃的错误..
I find error with firebase crashed..
然后我确认照片应用程序崩溃了..
Yhen I confirm photo app crashed..
arrow_drop_down
Exception java.lang.RuntimeException: Failure delivering result ResultInfo{who=null, request=4, result=-1, data=Intent { act=inline-data (has extras) }} to activity {paradox.galopshop/paradox.galopshop.All}: java.lang.NullPointerException: uri
android.app.ActivityThread.deliverResults (ActivityThread.java)
android.app.ActivityThread.handleSendResult (ActivityThread.java)
android.app.ActivityThread.access$1400 (ActivityThread.java)
android.app.ActivityThread$H.handleMessage (ActivityThread.java)
android.os.Handler.dispatchMessage (Handler.java)
android.os.Looper.loop (Looper.java)
android.app.ActivityThread.main (ActivityThread.java)
java.lang.reflect.Method.invoke (Method.java)
com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run (ZygoteInit.java)
com.android.internal.os.ZygoteInit.main (ZygoteInit.java)
arrow_drop_down
Caused by java.lang.NullPointerException: uri
com.android.internal.util.Preconditions.checkNotNull (Preconditions.java)
android.content.ContentResolver.openAssetFileDescriptor (ContentResolver.java)
android.content.ContentResolver.openAssetFileDescriptor (ContentResolver.java)
paradox.galopshop.ImagePicker.decodeBitmap (ImagePicker.java:116)
paradox.galopshop.ImagePicker.getImageResized (ImagePicker.java:139)
paradox.galopshop.ImagePicker.getBitmapFromResult (ImagePicker.java:103)
paradox.galopshop.All.onActivityResult (All.java:363)
android.app.Activity.dispatchActivityResult (Activity.java)
android.app.ActivityThread.deliverResults (ActivityThread.java)
android.app.ActivityThread.handleSendResult (ActivityThread.java)
android.app.ActivityThread.access$1400 (ActivityThread.java)
android.app.ActivityThread$H.handleMessage (ActivityThread.java)
android.os.Handler.dispatchMessage (Handler.java)
android.os.Looper.loop (Looper.java)
android.app.ActivityThread.main (ActivityThread.java)
java.lang.reflect.Method.invoke (Method.java)
com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run (ZygoteInit.java)
com.android.internal.os.ZygoteInit.main (ZygoteInit.java)
推荐答案
ImagePicker: 请在使用他们的库时感谢开发者
ImagePicker : please credit the developer when using their library
在 onActivityResult 内的 if 语句中，将 requestCode 更改为 requestCode &0xffff.
In your if statement inside of onActivityResult change requestCode to requestCode & 0xffff.
这里很多人没有注意到的是，返回的 requestCode 返回的是十六进制数，而不是数字.
What many people don't notice here is that the requestCode that is coming back is coming back as a hex number not as a digit number.
在您的 AndroidManifest.xml 中添加以下权限:
In your AndroidManifest.xml add these permissions:
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.CAMERA" />
<uses-feature android:name="android.hardware.camera" />
<uses-feature android:name="android.hardware.camera.autofocus" />
使用此方法拾取图像:
protected void onImageViewClick(){
// ImageView imageView=(ImageView)findViewById(R.id.imageView2);
TextView tw=(TextView)findViewById(R.id.addimage);
tw.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
selectImage();
}
});
}
private void selectImage() {
Intent takeImageIntent = ImagePicker.getPickImageIntent(this);
if (takeImageIntent.resolveActivity(getActivity().getPackageManager()) != null) {
startActivityForResult(takeImageIntent, REQUEST_IMAGE_CAPTURE);
}
}
然后用它来接收它们:
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
Bitmap bitmap = ImagePicker.getBitmapFromResult(this, resultCode, data);
if (null != bitmap && resultCode == RESULT_OK) {
//do what you want with the bitmap here
}
}
这篇关于从图库中选择图像并在 imageview 中显示的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
查看全文
