Android拍照返回圖片

一:項目框架

二:前端界面(activity_main.xml)

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.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=".MainActivity">
    <Button
        android:id="@+id/btn_forground"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginBottom="409dp"
        android:onClick="btn_forground"
        android:text="拍照"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/imageView" />
    <ImageView
        android:id="@+id/imageView"
        android:layout_width="0dp"
        android:layout_height="0dp"
        android:layout_marginTop="5dp"
        android:layout_marginBottom="12dp"
        android:background="#C4B5B5"
        app:layout_constraintBottom_toTopOf="@+id/btn_forground"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />
</androidx.constraintlayout.widget.ConstraintLayout>

三:後端代碼(MainActivity.class)

package cn.cg.photographrerunimage;
import androidx.appcompat.app.AppCompatActivity;
import android.content.Intent;
import android.graphics.Bitmap;
import android.os.Bundle;
import android.provider.MediaStore;
import android.view.View;
import android.widget.ImageView;
public class MainActivity extends AppCompatActivity {

    private ImageView imageView;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        imageView=findViewById(R.id.imageView);
    }

    public void btn_forground(View view) {
        Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
        if (intent.resolveActivity(getPackageManager()) != null) {
            startActivityForResult(intent, 1);
        }
    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode,resultCode,data);
        if (requestCode == 1 && resultCode == RESULT_OK) {
            Bitmap thumbnail = data.getParcelableExtra("data");
             imageView.setImageBitmap(thumbnail);
        }
    }
}

四:運行效果

---

更多Intent項目代碼:快點我