package com.zdsoft.picture1202;
import android.content.DialogInterface;
import android.content.Intent;
import android.support.v7.app.AlertDialog;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;
public class MainActivity extends AppCompatActivity {
private Button bt_pic;
private final int RC_CAMERA = 1;
private final int RC_ALBUM = 2;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
initView();
bt_pic.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
openPictuer();
}
});
}
private void initView() {
bt_pic = (Button) findViewById(R.id.bt_pic);
}
private void openPictuer() {
AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this);
builder.setTitle("請選擇");
builder.setItems(new String[]{"相機", "相冊"}, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
switch (which) {
case 0:
//相機
Intent intent_camera = new Intent("android.media.action.IMAGE_CAPTURE");
startActivityForResult(intent_camera, RC_CAMERA);
break;
case 1:
//相冊
Intent intent_album = new Intent(Intent.ACTION_PICK);
intent_album.setType("image/*");
startActivityForResult(intent_album,RC_ALBUM);
break;
}
}
});
builder.create().show();
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
switch (requestCode){
case RC_CAMERA:
Toast.makeText(MainActivity.this, "相機回調", Toast.LENGTH_SHORT).show();
break;
case RC_ALBUM:
Toast.makeText(MainActivity.this, "相冊回調", Toast.LENGTH_SHORT).show();
break;
default:break;
}
}
}
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context="com.zdsoft.picture1202.MainActivity">
<Button
android:id="@+id/bt_pic"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="選擇圖片" />
</RelativeLayout>