android 第三方开源库 学习汇总之Butter Knife

如果直接在App中使用，那么只需要在app的build.gradle中添加即可。

android {
  ...
  // Butterknife requires Java 8.
  compileOptions {
    sourceCompatibility JavaVersion.VERSION_1_8
    targetCompatibility JavaVersion.VERSION_1_8
  }
}

dependencies {
  implementation 'com.jakewharton:butterknife:10.2.0'
  annotationProcessor 'com.jakewharton:butterknife-compiler:10.2.0'
}

使用时，请在目标activity上调用 ButterKnife.bind(this); 用来绑定ButterKnife和Activity

    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        ButterKnife.bind(this);
    }

具体使用：

绑定按钮

    @OnClick(R.id.btn_butterknife)
    public void onClicked(View view)
    {
        switch (view.getId())
        {
            case  R.id.btn_butterknife:
                Log.d("Demo", "" +  R.id.btn_butterknife);
                break;
        }
    }

绑定文本输入框

    @BindView(R.id.tv_butterknife)
    TextView tv_butterknife;

tv_butterknife.setText("demo123");