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Merge pull request #1768 from hzs2019/master
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#3 #464 补交第3次实验
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@zengsn
zengsn authored May 6, 2019
2 parents 558f394 + 04b2234 commit 490bb9a
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Showing 6 changed files with 85 additions and 192 deletions.
36 changes: 36 additions & 0 deletions students/com1714080901133/app/src/main/AndroidManifest.xml
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<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="edu.hzuapps.androidlabs.com1714080901133">
<uses-permission android:name="android.permission.GET_ACCOUNTS" />
<uses-permission android:name="android.permission.READ_PROFILE" />
<uses-permission android:name="android.permission.READ_CONTACTS" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
<uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />
<uses-permission android:name="android.permission.CHANGE_NETWORK_STATE" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-feature
android:name="android.hardware.camera"
android:required="true" />
<application
android:allowBackup="true"
android:icon="@drawable/bilibili"
android:label="@string/app_name"
android:roundIcon="@mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<activity android:name=".Com1714080901133Activity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />

<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name=".Com1714080901133Activity2"
android:label="@string/title_activity_com17140809011332" />
</application>


</manifest>
178 changes: 6 additions & 172 deletions .../app/src/main/java/edu/hzuapps/androidlabs/com1714080901133/Com1714080901133Activity.java
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package edu.hzuapps.androidlabs.com1714080901133;
import android.annotation.TargetApi;
import android.content.ContentUris;
import android.content.Intent;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.net.Uri;
import android.os.Build;
import android.os.Environment;
import android.os.StrictMode;
import android.provider.DocumentsContract;
import android.provider.MediaStore;
import android.support.annotation.RequiresApi;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.Toast;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;

public class Com1714080901133Activity extends AppCompatActivity {
import edu.hzuapps.androidlabs.com1714080901133.Com1714080901133Activity;

public static final int TAKE_PHOTO = 1;
public static final int CROP_PHOTO = 2;
public static final int CHOOSE_PHOTO = 3;
private Button takephoto;
private Button choosephoto;
private ImageView picture;
private Uri imageUri;

@RequiresApi(api = Build.VERSION_CODES.JELLY_BEAN_MR2)
public class Com1714080901133Activity extends AppCompatActivity {
Button button;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
StrictMode.VmPolicy.Builder builder = new StrictMode.VmPolicy.Builder();
StrictMode.setVmPolicy(builder.build());
builder.detectFileUriExposure();
setContentView(R.layout.com_1714080901133_activity);
takephoto = (Button) findViewById(R.id.take_photo);
picture = (ImageView) findViewById(R.id.picture);
choosephoto = (Button) findViewById(R.id.choose_photo);

takephoto.setOnClickListener(new View.OnClickListener() {
ImageView jmp = findViewById(R.id.hzu);
jmp.setOnClickListener (new View.OnClickListener() {
@Override
public void onClick(View v) {

File outputImage = new File(Environment.getExternalStorageDirectory(),
"output_image.jpg");

try {
if (outputImage.exists()) {
outputImage.delete();
}
outputImage.createNewFile();
} catch (IOException e) {
e.printStackTrace();
}

imageUri = Uri.fromFile(outputImage);

Intent intent = new Intent("android.media.action.IMAGE_CAPTURE");
intent.putExtra(MediaStore.EXTRA_OUTPUT, imageUri);

startActivityForResult(intent, TAKE_PHOTO);
startActivity(new Intent(Com1714080901133Activity.this,Com1714080901133Activity2.class));
}
});

choosephoto.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent("android.intent.action.GET_CONTENT");
intent.setType("image/*");

startActivityForResult(intent, CHOOSE_PHOTO);
}
});
}

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
switch (requestCode) {

case TAKE_PHOTO:
if (resultCode == RESULT_OK) {
Intent intent = new Intent("com.android.camera.action.CROP");
intent.setDataAndType(imageUri, "image/*");
intent.putExtra("scale", true);
intent.putExtra(MediaStore.EXTRA_OUTPUT, imageUri);

startActivityForResult(intent, CROP_PHOTO);
}
break;

case CROP_PHOTO:
if (resultCode == RESULT_OK) {
try {
Bitmap bitmap = BitmapFactory.decodeStream(
getContentResolver().openInputStream(imageUri));
picture.setImageBitmap(bitmap);
} catch (FileNotFoundException e) {
e.printStackTrace();
}
}
break;

case CHOOSE_PHOTO:
if (resultCode == RESULT_OK) {
if (Build.VERSION.SDK_INT >= 19) {

handleImageOnKitKat(data);
} else {

handleImageBeforeKitKat(data);
}
}
break;
default:
break;
}
}


@TargetApi(19)
private void handleImageOnKitKat(Intent data) {
String imagePath = null;

Uri uri = data.getData();

if (DocumentsContract.isDocumentUri(this, uri)) {
String docId = DocumentsContract.getDocumentId(uri);

if ("com.android.providers.media.documents".equals(
uri.getAuthority())) {
String id = docId.split(":")[1];
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())) {

imagePath = getImagePath(uri, null);
}

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;
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);
picture.setImageBitmap(bitmap);
} else {
Toast.makeText(this, "failed to get image", Toast.LENGTH_SHORT).show();
}
}
}
13 changes: 13 additions & 0 deletions ...app/src/main/java/edu/hzuapps/androidlabs/com1714080901133/Com1714080901133Activity2.java
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package edu.hzuapps.androidlabs.com1714080901133;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;

public class Com1714080901133Activity2 extends AppCompatActivity {

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.com_1714080901133_activity2);
}
}
Binary file added students/com1714080901133/app/src/main/res/drawable/hzxy.jpg
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33 changes: 13 additions & 20 deletions students/com1714080901133/app/src/main/res/layout/com_1714080901133_activity.xml
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xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".Com1714080901133Activity">
tools:context="edu.hzuapps.androidlabs.com1714080901133.Com1714080901133Activity">

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
<LinearLayout
android:layout_width="368dp"
android:layout_height="551dp"
android:orientation="vertical"
tools:layout_editor_absoluteY="8dp"
tools:layout_editor_absoluteX="8dp">
tools:layout_editor_absoluteX="8dp"
tools:layout_editor_absoluteY="-12dp">

<Button
android:id="@+id/take_photo"
<ImageView
android:id="@+id/hzu"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="拍照" />

<Button
android:id="@+id/choose_photo"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="选择照片" />
android:layout_height="384dp"
android:layout_marginTop="-34dp"
android:contentDescription="ture"
android:drawablePadding="1dp"
android:src="@drawable/hzxy" />

<ImageView
android:id="@+id/picture"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal" />
</LinearLayout>

</android.support.constraint.ConstraintLayout>
</LinearLayout>
</android.support.constraint.ConstraintLayout>
17 changes: 17 additions & 0 deletions students/com1714080901133/app/src/main/res/layout/com_1714080901133_activity2.xml
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<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".Com1714080901133Activity2">

<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="第二个界面"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent" />
</android.support.constraint.ConstraintLayout>

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