你能告诉我为什么我的FAB对点击没有反应吗?这是我的活动代码:
public class MainActivity extends AppCompatActivity {
WebView wView;
FloatingActionButton fab;
EditText source, target;
Context context;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
context = this;
source = (EditText) findViewById(R.id.sourceAddr);
target = (EditText) findViewById(R.id.targetAddr);
wView = (WebView)findViewById(R.id.webView);
fab = (FloatingActionButton ) findViewById(R.id.fab);
fab.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
String sourceAddr = source.getText().toString();
String targetAddr = source.getText().toString();
if (sourceAddr.trim().length() > 0 && targetAddr.trim().length() > 0) {
Toast.makeText(context, sourceAddr + ", " +targetAddr, Toast.LENGTH_LONG);
}
}
});
WebSettings settings = wView.getSettings();
settings.setJavaScriptEnabled(true);
wView.loadUrl("file:////android_asset/web/index.html");
}
}
这是我的布局xml ...太长了所以我把它上传到了pastebin:
http://pastebin.com/f3UfXGxa
我使用的是API 22。
答案 0 :(得分:0)
这是解决方案:
Toast.makeText(context, sourceAddr + ", " +targetAddr, Toast.LENGTH_LONG).show();
你忘了调用show()方法。