在导入build.gradle中导入依赖
apply plugin: 'com.android.application'
android {
compileSdkVersion 27
defaultConfig {
applicationId "com.bwie.two_dimension_code"
minSdkVersion 15
targetSdkVersion 27
versionCode 1
versionName "1.0"
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
**configurations.all {
resolutionStrategy.eachDependency { DependencyResolveDetails details ->
def requested = details.requested
if (requested.group == 'com.android.support') {
if (!requested.name.startsWith("multidex")) {
details.useVersion '27.1.1' //这里改为你项目使用的版本即可
}
}
}
}**
}
dependencies {
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation 'com.android.support:appcompat-v7:27.1.1'
implementation 'com.android.support.constraint:constraint-layout:1.1.3'
**implementation 'com.android.support:design:27.1.1'//加入两个依赖
compile 'cn.yipianfengye.android:zxing-library:1.9'**
testImplementation 'junit:junit:4.12'
androidTestImplementation 'com.android.support.test:runner:1.0.2'
androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
}
主布局：主要写输入框和搜索框以及生成二维码的框架
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
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"
tools:context="com.bwie.two_dimension_code.MainActivity"
android:orientation="vertical">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<EditText
android:id="@+id/sou"
android:layout_width="300dp"
android:layout_height="wrap_content" />
<Button
android:id="@+id/btn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="搜索"/>
</LinearLayout>
<ImageView
android:id="@+id/img"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"/>
</LinearLayout>
主类功能模块
package com.bwie.two_dimension_code;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.text.TextUtils;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageView;
import com.uuzuche.lib_zxing.activity.CodeUtils;
public class MainActivity extends AppCompatActivity {
private EditText sou;
private Button btn;
private ImageView img;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//找控件
sou = findViewById(R.id.sou);
btn = findViewById(R.id.btn);
img = findViewById(R.id.img);
//输入内容后点击搜索生成一个二维码
btn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
String s = sou.getText().toString();
if (TextUtils.isEmpty(s)){
return;
}
Bitmap bitmap = CodeUtils.createImage(s, 400, 400, BitmapFactory.decodeResource(getResources(), R.mipmap.airen));
img.setImageBitmap(bitmap);
}
});
}
}
